constant name changes; version update

fix InsertIgnore didn't work

.example/database/gdb/driver/driver/driver.go

@@ -9,7 +9,6 @@ package driver
 import (
 	"database/sql"
 	"github.com/gogf/gf/database/gdb"
-	"github.com/gogf/gf/frame/g"
 	"github.com/gogf/gf/os/gtime"
 )
 
@@ -51,14 +50,13 @@ func (d *MyDriver) New(core *gdb.Core, node *gdb.ConfigNode) (gdb.DB, error) {
 func (d *MyDriver) DoQuery(link gdb.Link, sql string, args ...interface{}) (rows *sql.Rows, err error) {
 	tsMilli := gtime.TimestampMilli()
 	rows, err = d.DriverMysql.DoQuery(link, sql, args...)
-	if _, err := d.DriverMysql.InsertIgnore("monitor", g.Map{
-		"sql":   gdb.FormatSqlWithArgs(sql, args),
-		"cost":  gtime.TimestampMilli() - tsMilli,
-		"time":  gtime.Now(),
-		"error": err.Error(),
-	}); err != nil {
-		panic(err)
-	}
+	link.Exec(
+		"INSERT INTO `monitor`(`sql`,`cost`,`time`,`error`) VALUES(?,?,?,?)",
+		gdb.FormatSqlWithArgs(sql, args),
+		gtime.TimestampMilli()-tsMilli,
+		gtime.Now(),
+		err,
+	)
 	return
 }
 
@@ -67,13 +65,12 @@ func (d *MyDriver) DoQuery(link gdb.Link, sql string, args ...interface{}) (rows
 func (d *MyDriver) DoExec(link gdb.Link, sql string, args ...interface{}) (result sql.Result, err error) {
 	tsMilli := gtime.TimestampMilli()
 	result, err = d.DriverMysql.DoExec(link, sql, args...)
-	if _, err := d.DriverMysql.InsertIgnore("monitor", g.Map{
-		"sql":   gdb.FormatSqlWithArgs(sql, args),
-		"cost":  gtime.TimestampMilli() - tsMilli,
-		"time":  gtime.Now(),
-		"error": err.Error(),
-	}); err != nil {
-		panic(err)
-	}
+	link.Exec(
+		"INSERT INTO `monitor`(`sql`,`cost`,`time`,`error`) VALUES(?,?,?,?)",
+		gdb.FormatSqlWithArgs(sql, args),
+		gtime.TimestampMilli()-tsMilli,
+		gtime.Now(),
+		err,
+	)
 	return
 }

.example/database/gdb/mysql/config.toml

@@ -2,7 +2,7 @@
 # MySQL.
 [database]
 	debug   = true
-    link    = "mysql:root:12345678@tcp(127.0.0.1:3306)/test?parseTime=true&loc=Local"
+    link    = "mysql:root:12345678@tcp(127.0.0.1:3306)/test?parseTime=true"
     MaxOpen = 100
 
 # Redis.

.example/database/gdb/mysql/gdb_insert.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 	"github.com/gogf/gf/database/gdb"
-	"time"
+	"github.com/gogf/gf/frame/g"
 )
 
 func main() {
@@ -18,10 +18,9 @@ func main() {
 
 	db.SetDebug(true)
 
-	type User struct {
-		CreateTime time.Time `orm:"create_time"`
-	}
-	r, e := db.Table("user").Data(User{CreateTime: time.Now()}).Insert()
+	r, e := db.Table("user").Data(g.Map{
+		"create_at": "now()",
+	}).Unscoped().Insert()
 	if e != nil {
 		panic(e)
 	}

.example/database/gdb/mysql/gdb_value.go

@@ -1,12 +1,15 @@
 package main
 
 import (
+	"fmt"
 	"github.com/gogf/gf/frame/g"
 )
 
 func main() {
-	db := g.DB()
-	db.SetDebug(true)
-
-	db.Table("user").Data("num=num+1").Where("id", 8).Update()
+	one, err := g.DB().Table("carlist c").
+		LeftJoin("cardetail d", "c.postid=d.carid").
+		Where("c.postid", "142039140032006").
+		Fields("c.*,d.*").One()
+	fmt.Println(err)
+	g.Dump(one)
 }

.example/net/ghttp/server/exit.go

@@ -15,10 +15,10 @@ func main() {
 		r.Response.Writeln("end")
 	})
 	s.BindHookHandlerByMap(p, map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE: func(r *ghttp.Request) {
+		ghttp.HookBeforeServe: func(r *ghttp.Request) {
 			glog.To(r.Response.Writer).Println("BeforeServe")
 		},
-		ghttp.HOOK_AFTER_SERVE: func(r *ghttp.Request) {
+		ghttp.HookAfterServe: func(r *ghttp.Request) {
 			glog.To(r.Response.Writer).Println("AfterServe")
 		},
 	})

.example/net/ghttp/server/hooks/cors2.go

@@ -12,7 +12,7 @@ func Order(r *ghttp.Request) {
 func main() {
 	s := g.Server()
 	s.Group("/api.v1", func(group *ghttp.RouterGroup) {
-		group.Hook("/*any", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+		group.Hook("/*any", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 			r.Response.CORSDefault()
 		})
 		g.GET("/order", Order)

.example/net/ghttp/server/hooks/hooks1.go

@@ -11,10 +11,10 @@ func main() {
 	p := "/:name/info/{uid}"
 	s := g.Server()
 	s.BindHookHandlerByMap(p, map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE:  func(r *ghttp.Request) { glog.Println(ghttp.HOOK_BEFORE_SERVE) },
-		ghttp.HOOK_AFTER_SERVE:   func(r *ghttp.Request) { glog.Println(ghttp.HOOK_AFTER_SERVE) },
-		ghttp.HOOK_BEFORE_OUTPUT: func(r *ghttp.Request) { glog.Println(ghttp.HOOK_BEFORE_OUTPUT) },
-		ghttp.HOOK_AFTER_OUTPUT:  func(r *ghttp.Request) { glog.Println(ghttp.HOOK_AFTER_OUTPUT) },
+		ghttp.HookBeforeServe:  func(r *ghttp.Request) { glog.Println(ghttp.HookBeforeServe) },
+		ghttp.HookAfterServe:   func(r *ghttp.Request) { glog.Println(ghttp.HookAfterServe) },
+		ghttp.HookBeforeOutput: func(r *ghttp.Request) { glog.Println(ghttp.HookBeforeOutput) },
+		ghttp.HookAfterOutput:  func(r *ghttp.Request) { glog.Println(ghttp.HookAfterOutput) },
 	})
 	s.BindHandler(p, func(r *ghttp.Request) {
 		r.Response.Write("用户:", r.Get("name"), ", uid:", r.Get("uid"))

.example/net/ghttp/server/hooks/hooks4.go

@@ -11,7 +11,7 @@ func main() {
 	// 多事件回调示例，事件1
 	pattern1 := "/:name/info"
 	s.BindHookHandlerByMap(pattern1, map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE: func(r *ghttp.Request) {
+		ghttp.HookBeforeServe: func(r *ghttp.Request) {
 			r.SetParam("uid", 1000)
 		},
 	})
@@ -22,7 +22,7 @@ func main() {
 	// 多事件回调示例，事件2
 	pattern2 := "/{object}/list/{page}.java"
 	s.BindHookHandlerByMap(pattern2, map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_OUTPUT: func(r *ghttp.Request) {
+		ghttp.HookBeforeOutput: func(r *ghttp.Request) {
 			r.Response.SetBuffer([]byte(
 				fmt.Sprintf("通过事件修改输出内容, object:%s, page:%s", r.Get("object"), r.GetRouterString("page"))),
 			)

.example/net/ghttp/server/hooks/hooks5.go

@@ -7,10 +7,10 @@ import (
 
 func main() {
 	s := g.Server()
-	s.BindHookHandler("/*any", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+	s.BindHookHandler("/*any", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 		r.Response.Writeln("/*any")
 	})
-	s.BindHookHandler("/v1/*", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+	s.BindHookHandler("/v1/*", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 		r.Response.Writeln("/v1/*")
 		r.ExitHook()
 	})

.example/net/ghttp/server/hooks/hooks_param.go

@@ -11,7 +11,7 @@ func main() {
 		r.Response.Writeln(r.Get("name"))
 	})
 	s.BindHookHandlerByMap("/", map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE: func(r *ghttp.Request) {
+		ghttp.HookBeforeServe: func(r *ghttp.Request) {
 			r.SetParam("name", "john")
 		},
 	})

.example/net/ghttp/server/hooks/same_route_multi_hook.go

@@ -12,17 +12,17 @@ func main() {
 	})
 
 	s.BindHookHandlerByMap("/priority/:name", map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE: func(r *ghttp.Request) {
+		ghttp.HookBeforeServe: func(r *ghttp.Request) {
 			r.Response.Writeln("/priority/:name")
 		},
 	})
 	s.BindHookHandlerByMap("/priority/*any", map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE: func(r *ghttp.Request) {
+		ghttp.HookBeforeServe: func(r *ghttp.Request) {
 			r.Response.Writeln("/priority/*any")
 		},
 	})
 	s.BindHookHandlerByMap("/priority/show", map[string]ghttp.HandlerFunc{
-		ghttp.HOOK_BEFORE_SERVE: func(r *ghttp.Request) {
+		ghttp.HookBeforeServe: func(r *ghttp.Request) {
 			r.Response.Writeln("/priority/show")
 		},
 	})

.example/net/ghttp/server/middleware/middleware.go

@@ -27,10 +27,10 @@ func main() {
 			})
 		})
 		group.Group("/hook", func(group *ghttp.RouterGroup) {
-			group.Hook("/*", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+			group.Hook("/*", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 				r.Response.Write("hook any")
 			})
-			group.Hook("/:name", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+			group.Hook("/:name", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 				r.Response.Write("hook name")
 			})
 		})

.example/net/ghttp/server/resource/resource.go

@@ -18,7 +18,7 @@ func main() {
 	s := g.Server()
 	s.SetIndexFolder(true)
 	s.SetServerRoot("root")
-	s.BindHookHandler("/*", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+	s.BindHookHandler("/*", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 		fmt.Println(r.URL.Path, r.IsFileRequest())
 	})
 	s.BindHandler("/template", func(r *ghttp.Request) {

.example/net/ghttp/server/router/group/batch.go

@@ -27,7 +27,7 @@ func main() {
 	s := g.Server()
 	obj := new(Object)
 	s.Group("/api").Bind([]ghttp.GroupItem{
-		{"ALL", "*", HookHandler, ghttp.HOOK_BEFORE_SERVE},
+		{"ALL", "*", HookHandler, ghttp.HookBeforeServe},
 		{"ALL", "/handler", Handler},
 		{"ALL", "/obj", obj},
 		{"GET", "/obj/show", obj, "Show"},

.example/net/ghttp/server/router/group/level.go

@@ -54,10 +54,10 @@ func main() {
 			})
 		})
 		group.Group("/hook", func(group *ghttp.RouterGroup) {
-			group.Hook("/*", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+			group.Hook("/*", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 				r.Response.Write("hook any")
 			})
-			group.Hook("/:name", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+			group.Hook("/:name", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 				r.Response.Write("hook name")
 			})
 		})

.example/net/ghttp/server/router/router5.go

@@ -9,7 +9,7 @@ import (
 
 func main() {
 	s := g.Server()
-	s.BindHookHandler("/*any", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
+	s.BindHookHandler("/*any", ghttp.HookBeforeServe, func(r *ghttp.Request) {
 		fmt.Println(r.Router)
 		fmt.Println(r.Get("customer_id"))
 	})

.example/os/gmlock/locker4.go

@@ -13,7 +13,7 @@ func main() {
 	key := "key"
 
 	// 第一次锁带时间
-	gmlock.Lock(key, 1000)
+	gmlock.Lock(key)
 	glog.Println("lock1")
 	// 这个时候上一次的计时解锁已失效
 	gmlock.Unlock(key)

README.MD

@@ -125,6 +125,7 @@ The concurrency starts from `100` to `10000`.
 - [LeYouJia](https://www.leyoujia.com/)
 - [IGG](https://igg.com)
 - [XiMaLaYa](https://www.ximalaya.com)
+- [ZYBang](https://www.zybang.com/)
 
 > We list part of the users here, if your company or products are using `GoFrame`, please let us know [here](https://github.com/gogf/gf/issues/168).
 

README_ZH.MD

@@ -145,6 +145,7 @@ ab -t 10 -c 100 http://127.0.0.1:3000/json
 - [乐有家](https://www.leyoujia.com/)
 - [IGG](https://igg.com)
 - [喜马拉雅](https://www.ximalaya.com)
+- [作业帮](https://www.zybang.com/)
 
 > 在这里只列举了部分知名的用户，如果您的企业或者产品正在使用`GoFrame`，欢迎到 [这里](https://github.com/gogf/gf/issues/168) 留言。
 

container/garray/garray_normal_any.go

@@ -453,7 +453,7 @@ func (a *Array) Clone() (newArray *Array) {
 	array := make([]interface{}, len(a.array))
 	copy(array, a.array)
 	a.mu.RUnlock()
-	return NewArrayFrom(array, !a.mu.IsSafe())
+	return NewArrayFrom(array, a.mu.IsSafe())
 }
 
 // Clear deletes all items of current array.

container/garray/garray_normal_int.go

@@ -469,7 +469,7 @@ func (a *IntArray) Clone() (newArray *IntArray) {
 	array := make([]int, len(a.array))
 	copy(array, a.array)
 	a.mu.RUnlock()
-	return NewIntArrayFrom(array, !a.mu.IsSafe())
+	return NewIntArrayFrom(array, a.mu.IsSafe())
 }
 
 // Clear deletes all items of current array.

container/garray/garray_normal_str.go

@@ -457,7 +457,7 @@ func (a *StrArray) Clone() (newArray *StrArray) {
 	array := make([]string, len(a.array))
 	copy(array, a.array)
 	a.mu.RUnlock()
-	return NewStrArrayFrom(array, !a.mu.IsSafe())
+	return NewStrArrayFrom(array, a.mu.IsSafe())
 }
 
 // Clear deletes all items of current array.

container/garray/garray_sorted_any.go

@@ -499,7 +499,7 @@ func (a *SortedArray) Clone() (newArray *SortedArray) {
 	array := make([]interface{}, len(a.array))
 	copy(array, a.array)
 	a.mu.RUnlock()
-	return NewSortedArrayFrom(array, a.comparator, !a.mu.IsSafe())
+	return NewSortedArrayFrom(array, a.comparator, a.mu.IsSafe())
 }
 
 // Clear deletes all items of current array.

container/garray/garray_sorted_int.go

@@ -496,7 +496,7 @@ func (a *SortedIntArray) Clone() (newArray *SortedIntArray) {
 	array := make([]int, len(a.array))
 	copy(array, a.array)
 	a.mu.RUnlock()
-	return NewSortedIntArrayFrom(array, !a.mu.IsSafe())
+	return NewSortedIntArrayFrom(array, a.mu.IsSafe())
 }
 
 // Clear deletes all items of current array.

container/garray/garray_sorted_str.go

@@ -498,7 +498,7 @@ func (a *SortedStrArray) Clone() (newArray *SortedStrArray) {
 	array := make([]string, len(a.array))
 	copy(array, a.array)
 	a.mu.RUnlock()
-	return NewSortedStrArrayFrom(array, !a.mu.IsSafe())
+	return NewSortedStrArrayFrom(array, a.mu.IsSafe())
 }
 
 // Clear deletes all items of current array.

container/gmap/gmap_hash_int_any_map.go

@@ -56,7 +56,7 @@ func (m *IntAnyMap) Iterator(f func(k int, v interface{}) bool) {
 
 // Clone returns a new hash map with copy of current map data.
 func (m *IntAnyMap) Clone() *IntAnyMap {
-	return NewIntAnyMapFrom(m.MapCopy(), !m.mu.IsSafe())
+	return NewIntAnyMapFrom(m.MapCopy(), m.mu.IsSafe())
 }
 
 // Map returns the underlying data map.

container/gmap/gmap_hash_int_int_map.go

@@ -54,7 +54,7 @@ func (m *IntIntMap) Iterator(f func(k int, v int) bool) {
 
 // Clone returns a new hash map with copy of current map data.
 func (m *IntIntMap) Clone() *IntIntMap {
-	return NewIntIntMapFrom(m.MapCopy(), !m.mu.IsSafe())
+	return NewIntIntMapFrom(m.MapCopy(), m.mu.IsSafe())
 }
 
 // Map returns the underlying data map.

container/gmap/gmap_hash_int_str_map.go

@@ -54,7 +54,7 @@ func (m *IntStrMap) Iterator(f func(k int, v string) bool) {
 
 // Clone returns a new hash map with copy of current map data.
 func (m *IntStrMap) Clone() *IntStrMap {
-	return NewIntStrMapFrom(m.MapCopy(), !m.mu.IsSafe())
+	return NewIntStrMapFrom(m.MapCopy(), m.mu.IsSafe())
 }
 
 // Map returns the underlying data map.

container/gmap/gmap_hash_str_any_map.go

@@ -56,7 +56,7 @@ func (m *StrAnyMap) Iterator(f func(k string, v interface{}) bool) {
 
 // Clone returns a new hash map with copy of current map data.
 func (m *StrAnyMap) Clone() *StrAnyMap {
-	return NewStrAnyMapFrom(m.MapCopy(), !m.mu.IsSafe())
+	return NewStrAnyMapFrom(m.MapCopy(), m.mu.IsSafe())
 }
 
 // Map returns the underlying data map.

container/gmap/gmap_hash_str_int_map.go

@@ -54,7 +54,7 @@ func (m *StrIntMap) Iterator(f func(k string, v int) bool) {
 
 // Clone returns a new hash map with copy of current map data.
 func (m *StrIntMap) Clone() *StrIntMap {
-	return NewStrIntMapFrom(m.MapCopy(), !m.mu.IsSafe())
+	return NewStrIntMapFrom(m.MapCopy(), m.mu.IsSafe())
 }
 
 // Map returns the underlying data map.

container/gmap/gmap_hash_str_str_map.go

@@ -55,7 +55,7 @@ func (m *StrStrMap) Iterator(f func(k string, v string) bool) {
 
 // Clone returns a new hash map with copy of current map data.
 func (m *StrStrMap) Clone() *StrStrMap {
-	return NewStrStrMapFrom(m.MapCopy(), !m.mu.IsSafe())
+	return NewStrStrMapFrom(m.MapCopy(), m.mu.IsSafe())
 }
 
 // Map returns the underlying data map.

container/gpool/gpool.go

@@ -1,4 +1,4 @@
-// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame gf Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -19,18 +19,10 @@ import (
 
 // Pool is an Object-Reusable Pool.
 type Pool struct {
-	// Available/idle items list.
-	list *glist.List
-
-	// Whether the pool is closed.
-	closed *gtype.Bool
-
-	// Time To Live for pool items.
-	TTL time.Duration
-
-	// Callback function to create pool item.
-	NewFunc func() (interface{}, error)
-
+	list    *glist.List                 // Available/idle items list.
+	closed  *gtype.Bool                 // Whether the pool is closed.
+	TTL     time.Duration               // Time To Live for pool items.
+	NewFunc func() (interface{}, error) // Callback function to create pool item.
 	// ExpireFunc is the for expired items destruction.
 	// This function needs to be defined when the pool items
 	// need to perform additional destruction operations.
@@ -40,8 +32,8 @@ type Pool struct {
 
 // Pool item.
 type poolItem struct {
-	expire int64       // Expire timestamp in milliseconds.
-	value  interface{} // Item value.
+	value    interface{} // Item value.
+	expireAt int64       // Expire timestamp in milliseconds.
 }
 
 // Creation function for object.
@@ -80,11 +72,11 @@ func (p *Pool) Put(value interface{}) error {
 		value: value,
 	}
 	if p.TTL == 0 {
-		item.expire = 0
+		item.expireAt = 0
 	} else {
 		// As for Golang version < 1.13, there's no method Milliseconds for time.Duration.
 		// So we need calculate the milliseconds using its nanoseconds value.
-		item.expire = gtime.TimestampMilli() + p.TTL.Nanoseconds()/1000000
+		item.expireAt = gtime.TimestampMilli() + p.TTL.Nanoseconds()/1000000
 	}
 	p.list.PushBack(item)
 	return nil
@@ -112,8 +104,11 @@ func (p *Pool) Get() (interface{}, error) {
 	for !p.closed.Val() {
 		if r := p.list.PopFront(); r != nil {
 			f := r.(*poolItem)
-			if f.expire == 0 || f.expire > gtime.TimestampMilli() {
+			if f.expireAt == 0 || f.expireAt > gtime.TimestampMilli() {
 				return f.value, nil
+			} else if p.ExpireFunc != nil {
+				// TODO: move expire function calling asynchronously from `Get` operation.
+				p.ExpireFunc(f.value)
 			}
 		} else {
 			break
@@ -169,9 +164,9 @@ func (p *Pool) checkExpireItems() {
 		}
 		if r := p.list.PopFront(); r != nil {
 			item := r.(*poolItem)
-			latestExpire = item.expire
+			latestExpire = item.expireAt
 			// TODO improve the auto-expiration mechanism of the pool.
-			if item.expire > timestampMilli {
+			if item.expireAt > timestampMilli {
 				p.list.PushFront(item)
 				break
 			}

container/gtree/gtree_avltree.go

@@ -56,7 +56,7 @@ func NewAVLTreeFrom(comparator func(v1, v2 interface{}) int, data map[interface{
 
 // Clone returns a new tree with a copy of current tree.
 func (tree *AVLTree) Clone() *AVLTree {
-	newTree := NewAVLTree(tree.comparator, !tree.mu.IsSafe())
+	newTree := NewAVLTree(tree.comparator, tree.mu.IsSafe())
 	newTree.Sets(tree.Map())
 	return newTree
 }
@@ -441,9 +441,9 @@ func (tree *AVLTree) MapStrAny() map[string]interface{} {
 func (tree *AVLTree) Flip(comparator ...func(v1, v2 interface{}) int) {
 	t := (*AVLTree)(nil)
 	if len(comparator) > 0 {
-		t = NewAVLTree(comparator[0], !tree.mu.IsSafe())
+		t = NewAVLTree(comparator[0], tree.mu.IsSafe())
 	} else {
-		t = NewAVLTree(tree.comparator, !tree.mu.IsSafe())
+		t = NewAVLTree(tree.comparator, tree.mu.IsSafe())
 	}
 	tree.IteratorAsc(func(key, value interface{}) bool {
 		t.put(value, key, nil, &t.root)

container/gtree/gtree_btree.go

@@ -68,7 +68,7 @@ func NewBTreeFrom(m int, comparator func(v1, v2 interface{}) int, data map[inter
 
 // Clone returns a new tree with a copy of current tree.
 func (tree *BTree) Clone() *BTree {
-	newTree := NewBTree(tree.m, tree.comparator, !tree.mu.IsSafe())
+	newTree := NewBTree(tree.m, tree.comparator, tree.mu.IsSafe())
 	newTree.Sets(tree.Map())
 	return newTree
 }

container/gtree/gtree_redblacktree.go

@@ -83,7 +83,7 @@ func (tree *RedBlackTree) SetComparator(comparator func(a, b interface{}) int) {
 
 // Clone returns a new tree with a copy of current tree.
 func (tree *RedBlackTree) Clone() *RedBlackTree {
-	newTree := NewRedBlackTree(tree.comparator, !tree.mu.IsSafe())
+	newTree := NewRedBlackTree(tree.comparator, tree.mu.IsSafe())
 	newTree.Sets(tree.Map())
 	return newTree
 }
@@ -656,9 +656,9 @@ func (tree *RedBlackTree) Search(key interface{}) (value interface{}, found bool
 func (tree *RedBlackTree) Flip(comparator ...func(v1, v2 interface{}) int) {
 	t := (*RedBlackTree)(nil)
 	if len(comparator) > 0 {
-		t = NewRedBlackTree(comparator[0], !tree.mu.IsSafe())
+		t = NewRedBlackTree(comparator[0], tree.mu.IsSafe())
 	} else {
-		t = NewRedBlackTree(tree.comparator, !tree.mu.IsSafe())
+		t = NewRedBlackTree(tree.comparator, tree.mu.IsSafe())
 	}
 	tree.IteratorAsc(func(key, value interface{}) bool {
 		t.doSet(value, key)

container/gvar/gvar.go

@@ -1,4 +1,4 @@
-// Copyright 2018-2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -11,8 +11,6 @@ import (
 	"github.com/gogf/gf/internal/json"
 	"time"
 
-	"github.com/gogf/gf/internal/empty"
-
 	"github.com/gogf/gf/container/gtype"
 	"github.com/gogf/gf/os/gtime"
 	"github.com/gogf/gf/util/gconv"
@@ -88,16 +86,6 @@ func (v *Var) Interface() interface{} {
 	return v.Val()
 }
 
-// IsNil checks whether <v> is nil.
-func (v *Var) IsNil() bool {
-	return v.Val() == nil
-}
-
-// IsEmpty checks whether <v> is empty.
-func (v *Var) IsEmpty() bool {
-	return empty.IsEmpty(v.Val())
-}
-
 // Bytes converts and returns <v> as []byte.
 func (v *Var) Bytes() []byte {
 	return gconv.Bytes(v.Val())

container/gvar/gvar_is.go

@@ -0,0 +1,98 @@
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gvar
+
+import (
+	"github.com/gogf/gf/internal/empty"
+	"reflect"
+)
+
+// IsNil checks whether <v> is nil.
+func (v *Var) IsNil() bool {
+	return v.Val() == nil
+}
+
+// IsEmpty checks whether <v> is empty.
+func (v *Var) IsEmpty() bool {
+	return empty.IsEmpty(v.Val())
+}
+
+// IsInt checks whether <v> is type of int.
+func (v *Var) IsInt() bool {
+	switch v.Val().(type) {
+	case int, *int, int8, *int8, int16, *int16, int32, *int32, int64, *int64:
+		return true
+	}
+	return false
+}
+
+// IsUint checks whether <v> is type of uint.
+func (v *Var) IsUint() bool {
+	switch v.Val().(type) {
+	case uint, *uint, uint8, *uint8, uint16, *uint16, uint32, *uint32, uint64, *uint64:
+		return true
+	}
+	return false
+}
+
+// IsFloat checks whether <v> is type of float.
+func (v *Var) IsFloat() bool {
+	switch v.Val().(type) {
+	case float32, *float32, float64, *float64:
+		return true
+	}
+	return false
+}
+
+// IsSlice checks whether <v> is type of slice.
+func (v *Var) IsSlice() bool {
+	var (
+		reflectValue = reflect.ValueOf(v.Val())
+		reflectKind  = reflectValue.Kind()
+	)
+	for reflectKind == reflect.Ptr {
+		reflectValue = reflectValue.Elem()
+	}
+	switch reflectKind {
+	case reflect.Slice, reflect.Array:
+		return true
+	}
+	return false
+}
+
+// IsMap checks whether <v> is type of map.
+func (v *Var) IsMap() bool {
+	var (
+		reflectValue = reflect.ValueOf(v.Val())
+		reflectKind  = reflectValue.Kind()
+	)
+	for reflectKind == reflect.Ptr {
+		reflectValue = reflectValue.Elem()
+	}
+	switch reflectKind {
+	case reflect.Map:
+		return true
+	}
+	return false
+}
+
+// IsStruct checks whether <v> is type of struct.
+func (v *Var) IsStruct() bool {
+	var (
+		reflectValue = reflect.ValueOf(v.Val())
+		reflectKind  = reflectValue.Kind()
+	)
+	for reflectKind == reflect.Ptr {
+		reflectValue = reflectValue.Elem()
+		reflectKind = reflectValue.Kind()
+	}
+	switch reflectKind {
+	case reflect.Struct:
+		return true
+	}
+	return false
+}

container/gvar/gvar_z_unit_is_test.go

@@ -0,0 +1,170 @@
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gvar_test
+
+import (
+	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/test/gtest"
+	"testing"
+)
+
+func TestVar_IsNil(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsNil(), false)
+		t.Assert(g.NewVar(nil).IsNil(), true)
+		t.Assert(g.NewVar(g.Map{}).IsNil(), false)
+		t.Assert(g.NewVar(g.Slice{}).IsNil(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsNil(), false)
+		t.Assert(g.NewVar(0.1).IsNil(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsNil(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsNil(), false)
+	})
+}
+
+func TestVar_IsEmpty(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsEmpty(), true)
+		t.Assert(g.NewVar(nil).IsEmpty(), true)
+		t.Assert(g.NewVar(g.Map{}).IsEmpty(), true)
+		t.Assert(g.NewVar(g.Slice{}).IsEmpty(), true)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsEmpty(), false)
+		t.Assert(g.NewVar(0.1).IsEmpty(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsEmpty(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsEmpty(), false)
+	})
+}
+
+func TestVar_IsInt(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsInt(), true)
+		t.Assert(g.NewVar(nil).IsInt(), false)
+		t.Assert(g.NewVar(g.Map{}).IsInt(), false)
+		t.Assert(g.NewVar(g.Slice{}).IsInt(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsInt(), true)
+		t.Assert(g.NewVar(-1).IsInt(), true)
+		t.Assert(g.NewVar(0.1).IsInt(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsInt(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsInt(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(int8(1)).IsInt(), true)
+		t.Assert(g.NewVar(uint8(1)).IsInt(), false)
+	})
+}
+
+func TestVar_IsUint(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsUint(), false)
+		t.Assert(g.NewVar(nil).IsUint(), false)
+		t.Assert(g.NewVar(g.Map{}).IsUint(), false)
+		t.Assert(g.NewVar(g.Slice{}).IsUint(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsUint(), false)
+		t.Assert(g.NewVar(-1).IsUint(), false)
+		t.Assert(g.NewVar(0.1).IsUint(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsUint(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsUint(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(int8(1)).IsUint(), false)
+		t.Assert(g.NewVar(uint8(1)).IsUint(), true)
+	})
+}
+
+func TestVar_IsFloat(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsFloat(), false)
+		t.Assert(g.NewVar(nil).IsFloat(), false)
+		t.Assert(g.NewVar(g.Map{}).IsFloat(), false)
+		t.Assert(g.NewVar(g.Slice{}).IsFloat(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsFloat(), false)
+		t.Assert(g.NewVar(-1).IsFloat(), false)
+		t.Assert(g.NewVar(0.1).IsFloat(), true)
+		t.Assert(g.NewVar(float64(1)).IsFloat(), true)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsFloat(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsFloat(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(int8(1)).IsFloat(), false)
+		t.Assert(g.NewVar(uint8(1)).IsFloat(), false)
+	})
+}
+
+func TestVar_IsSlice(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsSlice(), false)
+		t.Assert(g.NewVar(nil).IsSlice(), false)
+		t.Assert(g.NewVar(g.Map{}).IsSlice(), false)
+		t.Assert(g.NewVar(g.Slice{}).IsSlice(), true)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsSlice(), false)
+		t.Assert(g.NewVar(-1).IsSlice(), false)
+		t.Assert(g.NewVar(0.1).IsSlice(), false)
+		t.Assert(g.NewVar(float64(1)).IsSlice(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsSlice(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsSlice(), true)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(int8(1)).IsSlice(), false)
+		t.Assert(g.NewVar(uint8(1)).IsSlice(), false)
+	})
+}
+
+func TestVar_IsMap(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsMap(), false)
+		t.Assert(g.NewVar(nil).IsMap(), false)
+		t.Assert(g.NewVar(g.Map{}).IsMap(), true)
+		t.Assert(g.NewVar(g.Slice{}).IsMap(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsMap(), false)
+		t.Assert(g.NewVar(-1).IsMap(), false)
+		t.Assert(g.NewVar(0.1).IsMap(), false)
+		t.Assert(g.NewVar(float64(1)).IsMap(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsMap(), true)
+		t.Assert(g.NewVar(g.Slice{0}).IsMap(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(int8(1)).IsMap(), false)
+		t.Assert(g.NewVar(uint8(1)).IsMap(), false)
+	})
+}
+
+func TestVar_IsStruct(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(0).IsStruct(), false)
+		t.Assert(g.NewVar(nil).IsStruct(), false)
+		t.Assert(g.NewVar(g.Map{}).IsStruct(), false)
+		t.Assert(g.NewVar(g.Slice{}).IsStruct(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(g.NewVar(1).IsStruct(), false)
+		t.Assert(g.NewVar(-1).IsStruct(), false)
+		t.Assert(g.NewVar(0.1).IsStruct(), false)
+		t.Assert(g.NewVar(float64(1)).IsStruct(), false)
+		t.Assert(g.NewVar(g.Map{"k": "v"}).IsStruct(), false)
+		t.Assert(g.NewVar(g.Slice{0}).IsStruct(), false)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		a := &struct {
+		}{}
+		t.Assert(g.NewVar(a).IsStruct(), true)
+		t.Assert(g.NewVar(*a).IsStruct(), true)
+		t.Assert(g.NewVar(&a).IsStruct(), true)
+	})
+}

database/gdb/gdb.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,10 +8,11 @@
 package gdb
 
 import (
+	"context"
 	"database/sql"
-	"errors"
 	"fmt"
-	"github.com/gogf/gf/internal/cmdenv"
+	"github.com/gogf/gf/errors/gerror"
+	"github.com/gogf/gf/os/gcmd"
 	"time"
 
 	"github.com/gogf/gf/container/gvar"
@@ -42,6 +43,12 @@ type DB interface {
 	// Note that it is not recommended using the this function manually.
 	Open(config *ConfigNode) (*sql.DB, error)
 
+	// Ctx is a chaining function, which creates and returns a new DB that is a shallow copy
+	// of current DB object and with given context in it.
+	// Note that this returned DB object can be used only once, so do not assign it to
+	// a global or package variable for long using.
+	Ctx(ctx context.Context) DB
+
 	// ===========================================================================
 	// Query APIs.
 	// ===========================================================================
@@ -137,6 +144,7 @@ type DB interface {
 	// Utility methods.
 	// ===========================================================================
 
+	GetCtx() context.Context
 	GetChars() (charLeft string, charRight string)
 	GetMaster(schema ...string) (*sql.DB, error)
 	GetSlave(schema ...string) (*sql.DB, error)
@@ -154,28 +162,24 @@ type DB interface {
 	HandleSqlBeforeCommit(link Link, sql string, args []interface{}) (string, []interface{})
 
 	// ===========================================================================
-	// Internal methods.
+	// Internal methods, for internal usage purpose, you do not need consider it.
 	// ===========================================================================
 
 	mappingAndFilterData(schema, table string, data map[string]interface{}, filter bool) (map[string]interface{}, error)
-	convertValue(fieldValue interface{}, fieldType string) interface{}
-	rowsToResult(rows *sql.Rows) (Result, error)
+	convertFieldValueToLocalValue(fieldValue interface{}, fieldType string) interface{}
+	convertRowsToResult(rows *sql.Rows) (Result, error)
 }
 
 // Core is the base struct for database management.
 type Core struct {
-	DB               DB            // DB interface object.
-	group            string        // Configuration group name.
-	debug            *gtype.Bool   // Enable debug mode for the database.
-	cache            *gcache.Cache // Cache manager, SQL result cache only.
-	schema           *gtype.String // Custom schema for this object.
-	dryrun           *gtype.Bool   // Dry run.
-	prefix           string        // Table prefix.
-	logger           *glog.Logger  // Logger.
-	config           *ConfigNode   // Current config node.
-	maxIdleConnCount int           // Max idle connection count.
-	maxOpenConnCount int           // Max open connection count.
-	maxConnLifetime  time.Duration // Max TTL for a connection.
+	DB     DB              // DB interface object.
+	group  string          // Configuration group name.
+	debug  *gtype.Bool     // Enable debug mode for the database, which can be changed in runtime.
+	cache  *gcache.Cache   // Cache manager, SQL result cache only.
+	schema *gtype.String   // Custom schema for this object.
+	logger *glog.Logger    // Logger.
+	config *ConfigNode     // Current config node.
+	ctx    context.Context // Context for chaining operation only.
 }
 
 // Driver is the interface for integrating sql drivers into package gdb.
@@ -214,22 +218,19 @@ type Link interface {
 	Prepare(sql string) (*sql.Stmt, error)
 }
 
+// Counter  is the type for update count.
+type Counter struct {
+	Field string
+	Value float64
+}
+
 type (
-	// Value is the field value type.
-	Value = *gvar.Var
-
-	// Record is the row record of the table.
-	Record map[string]Value
-
-	// Result is the row record array.
-	Result []Record
-
-	// Map is alias of map[string]interface{},
-	// which is the most common usage map type.
-	Map = map[string]interface{}
-
-	// List is type of map array.
-	List = []Map
+	Raw    string                   // Raw is a raw sql that will not be treated as argument but as a direct sql part.
+	Value  = *gvar.Var              // Value is the field value type.
+	Record map[string]Value         // Record is the row record of the table.
+	Result []Record                 // Result is the row record array.
+	Map    = map[string]interface{} // Map is alias of map[string]interface{}, which is the most common usage map type.
+	List   = []Map                  // List is type of map array.
 )
 
 const (
@@ -237,10 +238,10 @@ const (
 	insertOptionReplace     = 1
 	insertOptionSave        = 2
 	insertOptionIgnore      = 3
-	defaultBatchNumber      = 10  // Per count for batch insert/replace/save.
-	defaultMaxIdleConnCount = 10  // Max idle connection count in pool.
-	defaultMaxOpenConnCount = 100 // Max open connection count in pool.
-	defaultMaxConnLifeTime  = 30  // Max life time for per connection in pool in seconds.
+	defaultBatchNumber      = 10               // Per count for batch insert/replace/save.
+	defaultMaxIdleConnCount = 10               // Max idle connection count in pool.
+	defaultMaxOpenConnCount = 100              // Max open connection count in pool.
+	defaultMaxConnLifeTime  = 30 * time.Second // Max life time for per connection in pool in seconds.
 )
 
 var (
@@ -265,7 +266,7 @@ var (
 
 	// regularFieldNameRegPattern is the regular expression pattern for a string
 	// which is a regular field name of table.
-	regularFieldNameRegPattern = `^[\w\.\-]+$`
+	regularFieldNameRegPattern = `^[\w\.\-\_]+$`
 
 	// internalCache is the memory cache for internal usage.
 	internalCache = gcache.New()
@@ -277,7 +278,7 @@ var (
 
 func init() {
 	// allDryRun is initialized from environment or command options.
-	allDryRun = cmdenv.Get("gf.gdb.dryrun", false).Bool()
+	allDryRun = gcmd.GetWithEnv("gf.gdb.dryrun", false).Bool()
 }
 
 // Register registers custom database driver to gdb.
@@ -288,7 +289,7 @@ func Register(name string, driver Driver) error {
 
 // New creates and returns an ORM object with global configurations.
 // The parameter <name> specifies the configuration group name,
-// which is DEFAULT_GROUP_NAME in default.
+// which is DefaultGroupName in default.
 func New(group ...string) (db DB, err error) {
 	groupName := configs.group
 	if len(group) > 0 && group[0] != "" {
@@ -298,22 +299,17 @@ func New(group ...string) (db DB, err error) {
 	defer configs.RUnlock()
 
 	if len(configs.config) < 1 {
-		return nil, errors.New("empty database configuration")
+		return nil, gerror.New("empty database configuration")
 	}
 	if _, ok := configs.config[groupName]; ok {
 		if node, err := getConfigNodeByGroup(groupName, true); err == nil {
 			c := &Core{
-				group:            groupName,
-				debug:            gtype.NewBool(),
-				cache:            gcache.New(),
-				schema:           gtype.NewString(),
-				dryrun:           gtype.NewBool(),
-				logger:           glog.New(),
-				prefix:           node.Prefix,
-				config:           node,
-				maxIdleConnCount: defaultMaxIdleConnCount,
-				maxOpenConnCount: defaultMaxOpenConnCount,
-				maxConnLifetime:  defaultMaxConnLifeTime, // Default max connection life time if user does not configure.
+				group:  groupName,
+				debug:  gtype.NewBool(),
+				cache:  gcache.New(),
+				schema: gtype.NewString(),
+				logger: glog.New(),
+				config: node,
 			}
 			if v, ok := driverMap[node.Type]; ok {
 				c.DB, err = v.New(c, node)
@@ -322,19 +318,19 @@ func New(group ...string) (db DB, err error) {
 				}
 				return c.DB, nil
 			} else {
-				return nil, errors.New(fmt.Sprintf(`unsupported database type "%s"`, node.Type))
+				return nil, gerror.New(fmt.Sprintf(`unsupported database type "%s"`, node.Type))
 			}
 		} else {
 			return nil, err
 		}
 	} else {
-		return nil, errors.New(fmt.Sprintf(`database configuration node "%s" is not found`, groupName))
+		return nil, gerror.New(fmt.Sprintf(`database configuration node "%s" is not found`, groupName))
 	}
 }
 
 // Instance returns an instance for DB operations.
 // The parameter <name> specifies the configuration group name,
-// which is DEFAULT_GROUP_NAME in default.
+// which is DefaultGroupName in default.
 func Instance(name ...string) (db DB, err error) {
 	group := configs.group
 	if len(name) > 0 && name[0] != "" {
@@ -368,7 +364,7 @@ func getConfigNodeByGroup(group string, master bool) (*ConfigNode, error) {
 			}
 		}
 		if len(masterList) < 1 {
-			return nil, errors.New("at least one master node configuration's need to make sense")
+			return nil, gerror.New("at least one master node configuration's need to make sense")
 		}
 		if len(slaveList) < 1 {
 			slaveList = masterList
@@ -379,7 +375,7 @@ func getConfigNodeByGroup(group string, master bool) (*ConfigNode, error) {
 			return getConfigNodeByWeight(slaveList), nil
 		}
 	} else {
-		return nil, errors.New(fmt.Sprintf("empty database configuration for item name '%s'", group))
+		return nil, gerror.New(fmt.Sprintf("empty database configuration for item name '%s'", group))
 	}
 }
 
@@ -452,22 +448,26 @@ func (c *Core) getSqlDb(master bool, schema ...string) (sqlDb *sql.DB, err error
 			intlog.Printf("DB open failed: %v, %+v", err, node)
 			return nil, err
 		}
-		if c.maxIdleConnCount > 0 {
-			sqlDb.SetMaxIdleConns(c.maxIdleConnCount)
-		} else if node.MaxIdleConnCount > 0 {
-			sqlDb.SetMaxIdleConns(node.MaxIdleConnCount)
+		if c.config.MaxIdleConnCount > 0 {
+			sqlDb.SetMaxIdleConns(c.config.MaxIdleConnCount)
+		} else {
+			sqlDb.SetMaxIdleConns(defaultMaxIdleConnCount)
 		}
-
-		if c.maxOpenConnCount > 0 {
-			sqlDb.SetMaxOpenConns(c.maxOpenConnCount)
-		} else if node.MaxOpenConnCount > 0 {
-			sqlDb.SetMaxOpenConns(node.MaxOpenConnCount)
+		if c.config.MaxOpenConnCount > 0 {
+			sqlDb.SetMaxOpenConns(c.config.MaxOpenConnCount)
+		} else {
+			sqlDb.SetMaxOpenConns(defaultMaxOpenConnCount)
 		}
-
-		if c.maxConnLifetime > 0 {
-			sqlDb.SetConnMaxLifetime(c.maxConnLifetime * time.Second)
-		} else if node.MaxConnLifetime > 0 {
-			sqlDb.SetConnMaxLifetime(node.MaxConnLifetime * time.Second)
+		if c.config.MaxConnLifetime > 0 {
+			// Automatically checks whether MaxConnLifetime is configured using string like: "30s", "60s", etc.
+			// Or else it is configured just using number, which means value in seconds.
+			if c.config.MaxConnLifetime > time.Second {
+				sqlDb.SetConnMaxLifetime(c.config.MaxConnLifetime)
+			} else {
+				sqlDb.SetConnMaxLifetime(c.config.MaxConnLifetime * time.Second)
+			}
+		} else {
+			sqlDb.SetConnMaxLifetime(defaultMaxConnLifeTime)
 		}
 		return sqlDb, nil
 	}, 0)

database/gdb/gdb_core.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,9 +8,10 @@
 package gdb
 
 import (
+	"context"
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/text/gstr"
 	"reflect"
 	"strings"
@@ -23,6 +24,35 @@ import (
 	"github.com/gogf/gf/util/gconv"
 )
 
+// Ctx is a chaining function, which creates and returns a new DB that is a shallow copy
+// of current DB object and with given context in it.
+// Note that this returned DB object can be used only once, so do not assign it to
+// a global or package variable for long using.
+func (c *Core) Ctx(ctx context.Context) DB {
+	if ctx == nil {
+		return c.DB
+	}
+	var (
+		err        error
+		newCore    = &Core{}
+		configNode = c.DB.GetConfig()
+	)
+	*newCore = *c
+	newCore.ctx = ctx
+	newCore.DB, err = driverMap[configNode.Type].New(newCore, configNode)
+	// Seldom error, just log it.
+	if err != nil {
+		c.DB.GetLogger().Ctx(ctx).Error(err)
+	}
+	return newCore.DB
+}
+
+// GetCtx returns the context for current DB.
+// Note that it might be nil.
+func (c *Core) GetCtx() context.Context {
+	return c.ctx
+}
+
 // Master creates and returns a connection from master node if master-slave configured.
 // It returns the default connection if master-slave not configured.
 func (c *Core) Master() (*sql.DB, error) {
@@ -164,7 +194,7 @@ func (c *Core) DoGetAll(link Link, sql string, args ...interface{}) (result Resu
 		return nil, err
 	}
 	defer rows.Close()
-	return c.DB.rowsToResult(rows)
+	return c.DB.convertRowsToResult(rows)
 }
 
 // GetOne queries and returns one record from database.
@@ -437,10 +467,10 @@ func (c *Core) DoInsert(link Link, table string, data interface{}, option int, b
 	case reflect.Map:
 		dataMap = ConvertDataForTableRecord(data)
 	default:
-		return result, errors.New(fmt.Sprint("unsupported data type:", reflectKind))
+		return result, gerror.New(fmt.Sprint("unsupported data type:", reflectKind))
 	}
 	if len(dataMap) == 0 {
-		return nil, errors.New("data cannot be empty")
+		return nil, gerror.New("data cannot be empty")
 	}
 	var (
 		charL, charR = c.DB.GetChars()
@@ -449,8 +479,12 @@ func (c *Core) DoInsert(link Link, table string, data interface{}, option int, b
 	)
 	for k, v := range dataMap {
 		fields = append(fields, charL+k+charR)
-		values = append(values, "?")
-		params = append(params, v)
+		if s, ok := v.(Raw); ok {
+			values = append(values, gconv.String(s))
+		} else {
+			values = append(values, "?")
+			params = append(params, v)
+		}
 	}
 	if option == insertOptionSave {
 		for k, _ := range dataMap {
@@ -573,11 +607,11 @@ func (c *Core) DoBatchInsert(link Link, table string, list interface{}, option i
 				listMap = List{ConvertDataForTableRecord(value)}
 			}
 		default:
-			return result, errors.New(fmt.Sprint("unsupported list type:", kind))
+			return result, gerror.New(fmt.Sprint("unsupported list type:", kind))
 		}
 	}
 	if len(listMap) < 1 {
-		return result, errors.New("data list cannot be empty")
+		return result, gerror.New("data list cannot be empty")
 	}
 	if link == nil {
 		if link, err = c.DB.Master(); err != nil {
@@ -585,19 +619,16 @@ func (c *Core) DoBatchInsert(link Link, table string, list interface{}, option i
 		}
 	}
 	// Handle the field names and place holders.
-	holders := []string(nil)
 	for k, _ := range listMap[0] {
 		keys = append(keys, k)
-		holders = append(holders, "?")
 	}
 	// Prepare the batch result pointer.
 	var (
-		charL, charR   = c.DB.GetChars()
-		batchResult    = new(SqlResult)
-		keysStr        = charL + strings.Join(keys, charR+","+charL) + charR
-		valueHolderStr = "(" + strings.Join(holders, ",") + ")"
-		operation      = GetInsertOperationByOption(option)
-		updateStr      = ""
+		charL, charR = c.DB.GetChars()
+		batchResult  = new(SqlResult)
+		keysStr      = charL + strings.Join(keys, charR+","+charL) + charR
+		operation    = GetInsertOperationByOption(option)
+		updateStr    = ""
 	)
 	if option == insertOptionSave {
 		for _, k := range keys {
@@ -621,23 +652,30 @@ func (c *Core) DoBatchInsert(link Link, table string, list interface{}, option i
 	if len(batch) > 0 && batch[0] > 0 {
 		batchNum = batch[0]
 	}
-	listMapLen := len(listMap)
+	var (
+		listMapLen  = len(listMap)
+		valueHolder = make([]string, 0)
+	)
 	for i := 0; i < listMapLen; i++ {
+		values = values[:0]
 		// Note that the map type is unordered,
 		// so it should use slice+key to retrieve the value.
 		for _, k := range keys {
-			params = append(params, listMap[i][k])
+			if s, ok := listMap[i][k].(Raw); ok {
+				values = append(values, gconv.String(s))
+			} else {
+				values = append(values, "?")
+				params = append(params, listMap[i][k])
+			}
 		}
-		values = append(values, valueHolderStr)
+		valueHolder = append(valueHolder, "("+gstr.Join(values, ",")+")")
 		if len(values) == batchNum || (i == listMapLen-1 && len(values) > 0) {
 			r, err := c.DB.DoExec(
 				link,
 				fmt.Sprintf(
 					"%s INTO %s(%s) VALUES%s %s",
-					operation,
-					table,
-					keysStr,
-					strings.Join(values, ","),
+					operation, table, keysStr,
+					gstr.Join(valueHolder, ","),
 					updateStr,
 				),
 				params...,
@@ -652,7 +690,7 @@ func (c *Core) DoBatchInsert(link Link, table string, list interface{}, option i
 				batchResult.affected += n
 			}
 			params = params[:0]
-			values = values[:0]
+			valueHolder = valueHolder[:0]
 		}
 	}
 	return batchResult, nil
@@ -699,15 +737,35 @@ func (c *Core) DoUpdate(link Link, table string, data interface{}, condition str
 			dataMap = ConvertDataForTableRecord(data)
 		)
 		for k, v := range dataMap {
-			fields = append(fields, c.DB.QuoteWord(k)+"=?")
-			params = append(params, v)
+			switch value := v.(type) {
+			case *Counter:
+				if value.Value != 0 {
+					column := c.DB.QuoteWord(value.Field)
+					fields = append(fields, fmt.Sprintf("%s=%s+?", column, column))
+					params = append(params, value.Value)
+				}
+			case Counter:
+				if value.Value != 0 {
+					column := c.DB.QuoteWord(value.Field)
+					fields = append(fields, fmt.Sprintf("%s=%s+?", column, column))
+					params = append(params, value.Value)
+				}
+			default:
+				if s, ok := v.(Raw); ok {
+					fields = append(fields, c.DB.QuoteWord(k)+"="+gconv.String(s))
+				} else {
+					fields = append(fields, c.DB.QuoteWord(k)+"=?")
+					params = append(params, v)
+				}
+
+			}
 		}
 		updates = strings.Join(fields, ",")
 	default:
 		updates = gconv.String(data)
 	}
 	if len(updates) == 0 {
-		return nil, errors.New("data cannot be empty")
+		return nil, gerror.New("data cannot be empty")
 	}
 	if len(params) > 0 {
 		args = append(params, args...)
@@ -752,8 +810,8 @@ func (c *Core) DoDelete(link Link, table string, condition string, args ...inter
 	return c.DB.DoExec(link, fmt.Sprintf("DELETE FROM %s%s", table, condition), args...)
 }
 
-// rowsToResult converts underlying data record type sql.Rows to Result type.
-func (c *Core) rowsToResult(rows *sql.Rows) (Result, error) {
+// convertRowsToResult converts underlying data record type sql.Rows to Result type.
+func (c *Core) convertRowsToResult(rows *sql.Rows) (Result, error) {
 	if !rows.Next() {
 		return nil, nil
 	}
@@ -785,7 +843,7 @@ func (c *Core) rowsToResult(rows *sql.Rows) (Result, error) {
 			if value == nil {
 				row[columnNames[i]] = gvar.New(nil)
 			} else {
-				row[columnNames[i]] = gvar.New(c.DB.convertValue(value, columnTypes[i]))
+				row[columnNames[i]] = gvar.New(c.DB.convertFieldValueToLocalValue(value, columnTypes[i]))
 			}
 		}
 		records = append(records, row)
@@ -806,14 +864,14 @@ func (c *Core) MarshalJSON() ([]byte, error) {
 }
 
 // writeSqlToLogger outputs the sql object to logger.
-// It is enabled when configuration "debug" is true.
+// It is enabled only if configuration "debug" is true.
 func (c *Core) writeSqlToLogger(v *Sql) {
 	s := fmt.Sprintf("[%3d ms] [%s] %s", v.End-v.Start, v.Group, v.Format)
 	if v.Error != nil {
 		s += "\nError: " + v.Error.Error()
-		c.logger.Error(s)
+		c.logger.Ctx(c.DB.GetCtx()).Error(s)
 	} else {
-		c.logger.Debug(s)
+		c.logger.Ctx(c.DB.GetCtx()).Debug(s)
 	}
 }
 

database/gdb/gdb_core_config.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -16,7 +16,8 @@ import (
 )
 
 const (
-	DEFAULT_GROUP_NAME = "default" // Default group name.
+	DEFAULT_GROUP_NAME = "default" // Deprecated, use DefaultGroupName instead.
+	DefaultGroupName   = "default" // Default group name.
 )
 
 // Config is the configuration management object.
@@ -27,25 +28,26 @@ type ConfigGroup []ConfigNode
 
 // ConfigNode is configuration for one node.
 type ConfigNode struct {
-	Host             string        // Host of server, ip or domain like: 127.0.0.1, localhost
-	Port             string        // Port, it's commonly 3306.
-	User             string        // Authentication username.
-	Pass             string        // Authentication password.
-	Name             string        // Default used database name.
-	Type             string        // Database type: mysql, sqlite, mssql, pgsql, oracle.
-	Role             string        // (Optional, "master" in default) Node role, used for master-slave mode: master, slave.
-	Debug            bool          // (Optional) Debug mode enables debug information logging and output.
-	Prefix           string        // (Optional) Table prefix.
-	DryRun           bool          // (Optional) Dry run, which does SELECT but no INSERT/UPDATE/DELETE statements.
-	Weight           int           // (Optional) Weight for load balance calculating, it's useless if there's just one node.
-	Charset          string        // (Optional, "utf8mb4" in default) Custom charset when operating on database.
-	CreatedAt        string        // (Optional) The filed name of table for automatic-filled created datetime.
-	UpdatedAt        string        // (Optional) The filed name of table for automatic-filled updated datetime.
-	DeletedAt        string        // (Optional) The filed name of table for automatic-filled updated datetime.
-	LinkInfo         string        `json:"link"`        // (Optional) Custom link information, when it is used, configuration Host/Port/User/Pass/Name are ignored.
-	MaxIdleConnCount int           `json:"maxidle"`     // (Optional) Max idle connection configuration for underlying connection pool.
-	MaxOpenConnCount int           `json:"maxopen"`     // (Optional) Max open connection configuration for underlying connection pool.
-	MaxConnLifetime  time.Duration `json:"maxlifetime"` // (Optional) Max connection TTL configuration for underlying connection pool.
+	Host                 string        // Host of server, ip or domain like: 127.0.0.1, localhost
+	Port                 string        // Port, it's commonly 3306.
+	User                 string        // Authentication username.
+	Pass                 string        // Authentication password.
+	Name                 string        // Default used database name.
+	Type                 string        // Database type: mysql, sqlite, mssql, pgsql, oracle.
+	Role                 string        // (Optional, "master" in default) Node role, used for master-slave mode: master, slave.
+	Debug                bool          // (Optional) Debug mode enables debug information logging and output.
+	Prefix               string        // (Optional) Table prefix.
+	DryRun               bool          // (Optional) Dry run, which does SELECT but no INSERT/UPDATE/DELETE statements.
+	Weight               int           // (Optional) Weight for load balance calculating, it's useless if there's just one node.
+	Charset              string        // (Optional, "utf8mb4" in default) Custom charset when operating on database.
+	LinkInfo             string        `json:"link"`        // (Optional) Custom link information, when it is used, configuration Host/Port/User/Pass/Name are ignored.
+	MaxIdleConnCount     int           `json:"maxidle"`     // (Optional) Max idle connection configuration for underlying connection pool.
+	MaxOpenConnCount     int           `json:"maxopen"`     // (Optional) Max open connection configuration for underlying connection pool.
+	MaxConnLifetime      time.Duration `json:"maxlifetime"` // (Optional) Max connection TTL configuration for underlying connection pool.
+	CreatedAt            string        // (Optional) The filed name of table for automatic-filled created datetime.
+	UpdatedAt            string        // (Optional) The filed name of table for automatic-filled updated datetime.
+	DeletedAt            string        // (Optional) The filed name of table for automatic-filled updated datetime.
+	TimeMaintainDisabled bool          // (Optional) Disable the automatic time maintaining feature.
 }
 
 // configs is internal used configuration object.
@@ -57,7 +59,7 @@ var configs struct {
 
 func init() {
 	configs.config = make(Config)
-	configs.group = DEFAULT_GROUP_NAME
+	configs.group = DefaultGroupName
 }
 
 // SetConfig sets the global configuration for package.
@@ -87,12 +89,12 @@ func AddConfigNode(group string, node ConfigNode) {
 
 // AddDefaultConfigNode adds one node configuration to configuration of default group.
 func AddDefaultConfigNode(node ConfigNode) {
-	AddConfigNode(DEFAULT_GROUP_NAME, node)
+	AddConfigNode(DefaultGroupName, node)
 }
 
 // AddDefaultConfigGroup adds multiple node configurations to configuration of default group.
 func AddDefaultConfigGroup(nodes ConfigGroup) {
-	SetConfigGroup(DEFAULT_GROUP_NAME, nodes)
+	SetConfigGroup(DefaultGroupName, nodes)
 }
 
 // GetConfig retrieves and returns the configuration of given group.
@@ -138,18 +140,18 @@ func (c *Core) GetLogger() *glog.Logger {
 
 // SetMaxIdleConnCount sets the max idle connection count for underlying connection pool.
 func (c *Core) SetMaxIdleConnCount(n int) {
-	c.maxIdleConnCount = n
+	c.config.MaxIdleConnCount = n
 }
 
 // SetMaxOpenConnCount sets the max open connection count for underlying connection pool.
 func (c *Core) SetMaxOpenConnCount(n int) {
-	c.maxOpenConnCount = n
+	c.config.MaxOpenConnCount = n
 }
 
 // SetMaxConnLifetime sets the connection TTL for underlying connection pool.
 // If parameter <d> <= 0, it means the connection never expires.
 func (c *Core) SetMaxConnLifetime(d time.Duration) {
-	c.maxConnLifetime = d
+	c.config.MaxConnLifetime = d
 }
 
 // String returns the node as string.
@@ -165,6 +167,11 @@ func (node *ConfigNode) String() string {
 	)
 }
 
+// GetConfig returns the current used node configuration.
+func (c *Core) GetConfig() *ConfigNode {
+	return c.config
+}
+
 // SetDebug enables/disables the debug mode.
 func (c *Core) SetDebug(debug bool) {
 	c.debug.Set(debug)
@@ -180,28 +187,27 @@ func (c *Core) GetCache() *gcache.Cache {
 	return c.cache
 }
 
-// GetPrefix returns the table prefix string configured.
-func (c *Core) GetPrefix() string {
-	return c.prefix
-}
-
 // GetGroup returns the group string configured.
 func (c *Core) GetGroup() string {
 	return c.group
 }
 
 // SetDryRun enables/disables the DryRun feature.
-func (c *Core) SetDryRun(dryrun bool) {
-	c.dryrun.Set(dryrun)
+// Deprecated, use GetConfig instead.
+func (c *Core) SetDryRun(enabled bool) {
+	c.config.DryRun = enabled
 }
 
 // GetDryRun returns the DryRun value.
+// Deprecated, use GetConfig instead.
 func (c *Core) GetDryRun() bool {
-	if allDryRun {
-		// Globally set.
-		return true
-	}
-	return c.dryrun.Val()
+	return c.config.DryRun
+}
+
+// GetPrefix returns the table prefix string configured.
+// Deprecated, use GetConfig instead.
+func (c *Core) GetPrefix() string {
+	return c.config.Prefix
 }
 
 // SetSchema changes the schema for this database connection object.
@@ -215,8 +221,3 @@ func (c *Core) SetSchema(schema string) {
 func (c *Core) GetSchema() string {
 	return c.schema.Val()
 }
-
-// GetConfig returns the current used node configuration.
-func (c *Core) GetConfig() *ConfigNode {
-	return c.config
-}

database/gdb/gdb_core_structure.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -22,9 +22,9 @@ import (
 	"github.com/gogf/gf/util/gconv"
 )
 
-// convertValue automatically checks and converts field value from database type
+// convertFieldValueToLocalValue automatically checks and converts field value from database type
 // to golang variable type.
-func (c *Core) convertValue(fieldValue interface{}, fieldType string) interface{} {
+func (c *Core) convertFieldValueToLocalValue(fieldValue interface{}, fieldType string) interface{} {
 	// If there's no type retrieved, it returns the <fieldValue> directly
 	// to use its original data type, as <fieldValue> is type of interface{}.
 	if fieldType == "" {
@@ -146,7 +146,8 @@ func (c *Core) convertValue(fieldValue interface{}, fieldType string) interface{
 	}
 }
 
-// filterFields removes all key-value pairs which are not the field of given table.
+// mappingAndFilterData automatically mappings the map key to table field and removes
+// all key-value pairs that are not the field of given table.
 func (c *Core) mappingAndFilterData(schema, table string, data map[string]interface{}, filter bool) (map[string]interface{}, error) {
 	if fieldsMap, err := c.DB.TableFields(table, schema); err == nil {
 		fieldsKeyMap := make(map[string]interface{}, len(fieldsMap))

database/gdb/gdb_core_utility.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_driver_mssql.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,8 +13,8 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"strconv"
 	"strings"
 
@@ -192,14 +192,14 @@ func (d *DriverMssql) TableFields(table string, schema ...string) (fields map[st
 	charL, charR := d.GetChars()
 	table = gstr.Trim(table, charL+charR)
 	if gstr.Contains(table, " ") {
-		return nil, errors.New("function TableFields supports only single table operations")
+		return nil, gerror.New("function TableFields supports only single table operations")
 	}
 	checkSchema := d.DB.GetSchema()
 	if len(schema) > 0 && schema[0] != "" {
 		checkSchema = schema[0]
 	}
 	v, _ := internalCache.GetOrSetFunc(
-		fmt.Sprintf(`mssql_table_fields_%s_%s`, table, checkSchema),
+		fmt.Sprintf(`mssql_table_fields_%s_%s@group:%s`, table, checkSchema, d.GetGroup()),
 		func() (interface{}, error) {
 			var (
 				result Result

database/gdb/gdb_driver_mysql.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,8 +8,8 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/internal/intlog"
 	"github.com/gogf/gf/text/gregex"
 	"github.com/gogf/gf/text/gstr"
@@ -31,6 +31,7 @@ func (d *DriverMysql) New(core *Core, node *ConfigNode) (DB, error) {
 }
 
 // Open creates and returns a underlying sql.DB object for mysql.
+// Note that it converts time.Time argument to local timezone in default.
 func (d *DriverMysql) Open(config *ConfigNode) (*sql.DB, error) {
 	var source string
 	if config.LinkInfo != "" {
@@ -41,7 +42,7 @@ func (d *DriverMysql) Open(config *ConfigNode) (*sql.DB, error) {
 		}
 	} else {
 		source = fmt.Sprintf(
-			"%s:%s@tcp(%s:%s)/%s?charset=%s&multiStatements=true&parseTime=true&loc=Local",
+			"%s:%s@tcp(%s:%s)/%s?charset=%s&multiStatements=true&parseTime=true",
 			config.User, config.Pass, config.Host, config.Port, config.Name, config.Charset,
 		)
 	}
@@ -96,14 +97,14 @@ func (d *DriverMysql) TableFields(table string, schema ...string) (fields map[st
 	charL, charR := d.GetChars()
 	table = gstr.Trim(table, charL+charR)
 	if gstr.Contains(table, " ") {
-		return nil, errors.New("function TableFields supports only single table operations")
+		return nil, gerror.New("function TableFields supports only single table operations")
 	}
 	checkSchema := d.schema.Val()
 	if len(schema) > 0 && schema[0] != "" {
 		checkSchema = schema[0]
 	}
 	v, _ := internalCache.GetOrSetFunc(
-		fmt.Sprintf(`mysql_table_fields_%s_%s`, table, checkSchema),
+		fmt.Sprintf(`mysql_table_fields_%s_%s@group:%s`, table, checkSchema, d.GetGroup()),
 		func() (interface{}, error) {
 			var (
 				result Result

database/gdb/gdb_driver_oracle.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,10 +13,11 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/internal/intlog"
 	"github.com/gogf/gf/text/gstr"
+	"github.com/gogf/gf/util/gconv"
 	"reflect"
 	"strconv"
 	"strings"
@@ -72,6 +73,15 @@ func (d *DriverOracle) HandleSqlBeforeCommit(link Link, sql string, args []inter
 		return fmt.Sprintf(":v%d", index)
 	})
 	str, _ = gregex.ReplaceString("\"", "", str)
+	// Change time string argument wrapping with TO_DATE function.
+	for i, v := range args {
+		if reflect.TypeOf(v).Kind() == reflect.String {
+			valueStr := gconv.String(v)
+			if gregex.IsMatchString(`^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$`, valueStr) {
+				args[i] = fmt.Sprintf(`TO_DATE('%s','yyyy-MM-dd HH:MI:SS')`, valueStr)
+			}
+		}
+	}
 	return d.parseSql(str), args
 }
 
@@ -152,14 +162,14 @@ func (d *DriverOracle) TableFields(table string, schema ...string) (fields map[s
 	charL, charR := d.GetChars()
 	table = gstr.Trim(table, charL+charR)
 	if gstr.Contains(table, " ") {
-		return nil, errors.New("function TableFields supports only single table operations")
+		return nil, gerror.New("function TableFields supports only single table operations")
 	}
 	checkSchema := d.DB.GetSchema()
 	if len(schema) > 0 && schema[0] != "" {
 		checkSchema = schema[0]
 	}
 	v, _ := internalCache.GetOrSetFunc(
-		fmt.Sprintf(`oracle_table_fields_%s_%s`, table, checkSchema),
+		fmt.Sprintf(`oracle_table_fields_%s_%s@group:%s`, table, checkSchema, d.GetGroup()),
 		func() (interface{}, error) {
 			result := (Result)(nil)
 			structureSql := fmt.Sprintf(`
@@ -242,7 +252,7 @@ func (d *DriverOracle) DoInsert(link Link, table string, data interface{}, optio
 	case reflect.Struct:
 		dataMap = ConvertDataForTableRecord(data)
 	default:
-		return result, errors.New(fmt.Sprint("unsupported data type:", kind))
+		return result, gerror.New(fmt.Sprint("unsupported data type:", kind))
 	}
 
 	indexs := make([]string, 0)
@@ -367,12 +377,12 @@ func (d *DriverOracle) DoBatchInsert(link Link, table string, list interface{},
 		case reflect.Struct:
 			listMap = List{Map(ConvertDataForTableRecord(list))}
 		default:
-			return result, errors.New(fmt.Sprint("unsupported list type:", kind))
+			return result, gerror.New(fmt.Sprint("unsupported list type:", kind))
 		}
 	}
 	// 判断长度
 	if len(listMap) < 1 {
-		return result, errors.New("empty data list")
+		return result, gerror.New("empty data list")
 	}
 	if link == nil {
 		if link, err = d.DB.Master(); err != nil {

database/gdb/gdb_driver_pgsql.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,8 +13,8 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/internal/intlog"
 	"github.com/gogf/gf/text/gstr"
 	"strings"
@@ -100,7 +100,7 @@ func (d *DriverPgsql) TableFields(table string, schema ...string) (fields map[st
 	charL, charR := d.GetChars()
 	table = gstr.Trim(table, charL+charR)
 	if gstr.Contains(table, " ") {
-		return nil, errors.New("function TableFields supports only single table operations")
+		return nil, gerror.New("function TableFields supports only single table operations")
 	}
 	table, _ = gregex.ReplaceString("\"", "", table)
 	checkSchema := d.DB.GetSchema()
@@ -108,7 +108,7 @@ func (d *DriverPgsql) TableFields(table string, schema ...string) (fields map[st
 		checkSchema = schema[0]
 	}
 	v, _ := internalCache.GetOrSetFunc(
-		fmt.Sprintf(`pgsql_table_fields_%s_%s`, table, checkSchema),
+		fmt.Sprintf(`pgsql_table_fields_%s_%s@group:%s`, table, checkSchema, d.GetGroup()),
 		func() (interface{}, error) {
 			var (
 				result Result

database/gdb/gdb_driver_sqlite.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -12,8 +12,8 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/internal/intlog"
 	"github.com/gogf/gf/os/gfile"
 	"github.com/gogf/gf/text/gstr"
@@ -36,15 +36,14 @@ func (d *DriverSqlite) New(core *Core, node *ConfigNode) (DB, error) {
 // Open creates and returns a underlying sql.DB object for sqlite.
 func (d *DriverSqlite) Open(config *ConfigNode) (*sql.DB, error) {
 	var source string
-	var err error
 	if config.LinkInfo != "" {
 		source = config.LinkInfo
 	} else {
 		source = config.Name
 	}
-	source, err = gfile.Search(source)
-	if err != nil {
-		return nil, err
+	// It searches the source file to locate its absolute path..
+	if absolutePath, _ := gfile.Search(source); absolutePath != "" {
+		source = absolutePath
 	}
 	intlog.Printf("Open: %s", source)
 	if db, err := sql.Open("sqlite3", source); err == nil {
@@ -92,14 +91,14 @@ func (d *DriverSqlite) TableFields(table string, schema ...string) (fields map[s
 	charL, charR := d.GetChars()
 	table = gstr.Trim(table, charL+charR)
 	if gstr.Contains(table, " ") {
-		return nil, errors.New("function TableFields supports only single table operations")
+		return nil, gerror.New("function TableFields supports only single table operations")
 	}
 	checkSchema := d.DB.GetSchema()
 	if len(schema) > 0 && schema[0] != "" {
 		checkSchema = schema[0]
 	}
 	v, _ := internalCache.GetOrSetFunc(
-		fmt.Sprintf(`sqlite_table_fields_%s_%s`, table, checkSchema),
+		fmt.Sprintf(`sqlite_table_fields_%s_%s@group:%s`, table, checkSchema, d.GetGroup()),
 		func() (interface{}, error) {
 			var (
 				result Result

database/gdb/gdb_func.go

@@ -1,4 +1,4 @@
-// Copyright 2017-2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,8 +8,8 @@ package gdb
 
 import (
 	"bytes"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/internal/empty"
 	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/internal/utils"
@@ -127,6 +127,8 @@ func ConvertDataForTableRecord(value interface{}) map[string]interface{} {
 			switch v.(type) {
 			case time.Time, *time.Time, gtime.Time, *gtime.Time:
 				continue
+			case Counter, *Counter:
+				continue
 			default:
 				// Use string conversion in default.
 				if s, ok := v.(apiString); ok {
@@ -499,7 +501,11 @@ func formatWhereInterfaces(db DB, where []interface{}, buffer *bytes.Buffer, new
 		} else {
 			buffer.WriteString(db.QuoteWord(str) + "=?")
 		}
-		newArgs = append(newArgs, where[i+1])
+		if s, ok := where[i+1].(Raw); ok {
+			buffer.WriteString(gconv.String(s))
+		} else {
+			newArgs = append(newArgs, where[i+1])
+		}
 	}
 	return newArgs
 }
@@ -567,14 +573,18 @@ func formatWhereKeyValue(db DB, buffer *bytes.Buffer, newArgs []interface{}, key
 			} else {
 				buffer.WriteString(quotedKey)
 			}
-			newArgs = append(newArgs, value)
+			if s, ok := value.(Raw); ok {
+				buffer.WriteString(gconv.String(s))
+			} else {
+				newArgs = append(newArgs, value)
+			}
 		}
 	}
 	return newArgs
 }
 
-// handleArguments is a nice function which handles the query and its arguments before committing to
-// underlying driver.
+// handleArguments is an important function, which handles the sql and all its arguments
+// before committing them to underlying driver.
 func handleArguments(sql string, args []interface{}) (newSql string, newArgs []interface{}) {
 	newSql = sql
 	// insertHolderCount is used to calculate the inserting position for the '?' holder.
@@ -583,14 +593,14 @@ func handleArguments(sql string, args []interface{}) (newSql string, newArgs []i
 	if len(args) > 0 {
 		for index, arg := range args {
 			var (
-				rv   = reflect.ValueOf(arg)
-				kind = rv.Kind()
+				reflectValue = reflect.ValueOf(arg)
+				reflectKind  = reflectValue.Kind()
 			)
-			if kind == reflect.Ptr {
-				rv = rv.Elem()
-				kind = rv.Kind()
+			for reflectKind == reflect.Ptr {
+				reflectValue = reflectValue.Elem()
+				reflectKind = reflectValue.Kind()
 			}
-			switch kind {
+			switch reflectKind {
 			case reflect.Slice, reflect.Array:
 				// It does not split the type of []byte.
 				// Eg: table.Where("name = ?", []byte("john"))
@@ -599,7 +609,7 @@ func handleArguments(sql string, args []interface{}) (newSql string, newArgs []i
 					continue
 				}
 
-				if rv.Len() == 0 {
+				if reflectValue.Len() == 0 {
 					// Empty slice argument, it converts the sql to a false sql.
 					// Eg:
 					// Query("select * from xxx where id in(?)", g.Slice{}) -> select * from xxx where 0=1
@@ -613,15 +623,15 @@ func handleArguments(sql string, args []interface{}) (newSql string, newArgs []i
 						}
 					}
 				} else {
-					for i := 0; i < rv.Len(); i++ {
-						newArgs = append(newArgs, rv.Index(i).Interface())
+					for i := 0; i < reflectValue.Len(); i++ {
+						newArgs = append(newArgs, reflectValue.Index(i).Interface())
 					}
 				}
 
 				// If the '?' holder count equals the length of the slice,
 				// it does not implement the arguments splitting logic.
 				// Eg: db.Query("SELECT ?+?", g.Slice{1, 2})
-				if len(args) == 1 && gstr.Count(newSql, "?") == rv.Len() {
+				if len(args) == 1 && gstr.Count(newSql, "?") == reflectValue.Len() {
 					break
 				}
 				// counter is used to finding the inserting position for the '?' holder.
@@ -636,36 +646,37 @@ func handleArguments(sql string, args []interface{}) (newSql string, newArgs []i
 					counter++
 					if counter == index+insertHolderCount+1 {
 						replaced = true
-						insertHolderCount += rv.Len() - 1
-						return "?" + strings.Repeat(",?", rv.Len()-1)
+						insertHolderCount += reflectValue.Len() - 1
+						return "?" + strings.Repeat(",?", reflectValue.Len()-1)
 					}
 					return s
 				})
 
 			// Special struct handling.
 			case reflect.Struct:
-				// The underlying driver supports time.Time/*time.Time types.
-				if _, ok := arg.(time.Time); ok {
-					newArgs = append(newArgs, arg)
-					continue
-				}
-				if _, ok := arg.(*time.Time); ok {
-					newArgs = append(newArgs, arg)
-					continue
-				}
 				switch v := arg.(type) {
+				// The underlying driver supports time.Time/*time.Time types.
 				case time.Time, *time.Time:
 					newArgs = append(newArgs, arg)
 					continue
 
-				// Special handling for gtime.Time.
+				// Special handling for gtime.Time/*gtime.Time.
+				//
+				// DO NOT use its underlying gtime.Time.Time as its argument,
+				// because the std time.Time will be converted to certain timezone
+				// according to underlying driver. And the underlying driver also
+				// converts the time.Time to string automatically as the following does.
 				case gtime.Time:
 					newArgs = append(newArgs, v.String())
 					continue
 
+				case *gtime.Time:
+					newArgs = append(newArgs, v.String())
+					continue
+
 				default:
 					// It converts the struct to string in default
-					// if it implements the String interface.
+					// if it has implemented the String interface.
 					if v, ok := arg.(apiString); ok {
 						newArgs = append(newArgs, v.String())
 						continue
@@ -684,7 +695,7 @@ func handleArguments(sql string, args []interface{}) (newSql string, newArgs []i
 // formatError customizes and returns the SQL error.
 func formatError(err error, sql string, args ...interface{}) error {
 	if err != nil && err != ErrNoRows {
-		return errors.New(fmt.Sprintf("%s, %s\n", err.Error(), FormatSqlWithArgs(sql, args)))
+		return gerror.New(fmt.Sprintf("%s, %s\n", err.Error(), FormatSqlWithArgs(sql, args)))
 	}
 	return err
 }
@@ -716,7 +727,7 @@ func FormatSqlWithArgs(sql string, args []interface{}) string {
 					return `'` + gstr.QuoteMeta(gconv.String(args[index]), `'`) + `'`
 				case reflect.Struct:
 					if t, ok := args[index].(time.Time); ok {
-						return `'` + gtime.NewFromTime(t).String() + `'`
+						return `'` + t.Format(`2006-01-02 15:04:05`) + `'`
 					}
 					return `'` + gstr.QuoteMeta(gconv.String(args[index]), `'`) + `'`
 				}
@@ -727,9 +738,9 @@ func FormatSqlWithArgs(sql string, args []interface{}) string {
 	return newQuery
 }
 
-// mapToStruct maps the <data> to given struct.
+// convertMapToStruct maps the <data> to given struct.
 // Note that the given parameter <pointer> should be a pointer to s struct.
-func mapToStruct(data map[string]interface{}, pointer interface{}) error {
+func convertMapToStruct(data map[string]interface{}, pointer interface{}) error {
 	tagNameMap, err := structs.TagMapName(pointer, []string{ORM_TAG_FOR_STRUCT})
 	if err != nil {
 		return err

database/gdb/gdb_model.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -7,6 +7,7 @@
 package gdb
 
 import (
+	"context"
 	"fmt"
 	"github.com/gogf/gf/text/gregex"
 	"time"
@@ -52,13 +53,14 @@ type whereHolder struct {
 }
 
 const (
-	gLINK_TYPE_MASTER   = 1
-	gLINK_TYPE_SLAVE    = 2
-	gWHERE_HOLDER_WHERE = 1
-	gWHERE_HOLDER_AND   = 2
-	gWHERE_HOLDER_OR    = 3
-	OPTION_OMITEMPTY    = 1 << iota
-	OPTION_ALLOWEMPTY
+	OPTION_OMITEMPTY  = 1
+	OPTION_ALLOWEMPTY = 2
+
+	linkTypeMaster   = 1
+	linkTypeSlave    = 2
+	whereHolderWhere = 1
+	whereHolderAnd   = 2
+	whereHolderOr    = 3
 )
 
 // Table creates and returns a new ORM model from given schema.
@@ -112,6 +114,16 @@ func (tx *TX) Model(table ...string) *Model {
 	return tx.Table(table...)
 }
 
+// Ctx sets the context for current operation.
+func (m *Model) Ctx(ctx context.Context) *Model {
+	if ctx == nil {
+		return m
+	}
+	model := m.getModel()
+	model.db = model.db.Ctx(ctx)
+	return model
+}
+
 // As sets an alias name for current table.
 func (m *Model) As(as string) *Model {
 	if m.tables != "" {
@@ -141,6 +153,7 @@ func (m *Model) DB(db DB) *Model {
 // TX sets/changes the transaction for current operation.
 func (m *Model) TX(tx *TX) *Model {
 	model := m.getModel()
+	model.db = tx.db
 	model.tx = tx
 	return model
 }
@@ -177,7 +190,7 @@ func (m *Model) Clone() *Model {
 // Master marks the following operation on master node.
 func (m *Model) Master() *Model {
 	model := m.getModel()
-	model.linkType = gLINK_TYPE_MASTER
+	model.linkType = linkTypeMaster
 	return model
 }
 
@@ -185,7 +198,7 @@ func (m *Model) Master() *Model {
 // Note that it makes sense only if there's any slave node configured.
 func (m *Model) Slave() *Model {
 	model := m.getModel()
-	model.linkType = gLINK_TYPE_SLAVE
+	model.linkType = linkTypeSlave
 	return model
 }
 

database/gdb/gdb_model_cache.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_model_condition.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -27,7 +27,7 @@ func (m *Model) Where(where interface{}, args ...interface{}) *Model {
 		model.whereHolder = make([]*whereHolder, 0)
 	}
 	model.whereHolder = append(model.whereHolder, &whereHolder{
-		operator: gWHERE_HOLDER_WHERE,
+		operator: whereHolderWhere,
 		where:    where,
 		args:     args,
 	})
@@ -65,7 +65,7 @@ func (m *Model) And(where interface{}, args ...interface{}) *Model {
 		model.whereHolder = make([]*whereHolder, 0)
 	}
 	model.whereHolder = append(model.whereHolder, &whereHolder{
-		operator: gWHERE_HOLDER_AND,
+		operator: whereHolderAnd,
 		where:    where,
 		args:     args,
 	})
@@ -79,7 +79,7 @@ func (m *Model) Or(where interface{}, args ...interface{}) *Model {
 		model.whereHolder = make([]*whereHolder, 0)
 	}
 	model.whereHolder = append(model.whereHolder, &whereHolder{
-		operator: gWHERE_HOLDER_OR,
+		operator: whereHolderOr,
 		where:    where,
 		args:     args,
 	})

database/gdb/gdb_model_delete.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_model_fields.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -33,19 +33,21 @@ func (m *Model) Fields(fieldNamesOrMapStruct ...interface{}) *Model {
 		return m
 	}
 	switch {
+	// String slice.
 	case length >= 2:
 		model := m.getModel()
-		model.fields = gstr.Join(m.mappingToTableFields(gconv.Strings(fieldNamesOrMapStruct)), ",")
+		model.fields = gstr.Join(m.mappingAndFilterToTableFields(gconv.Strings(fieldNamesOrMapStruct)), ",")
 		return model
+	// It need type asserting.
 	case length == 1:
 		model := m.getModel()
 		switch r := fieldNamesOrMapStruct[0].(type) {
 		case string:
-			model.fields = gstr.Join(m.mappingToTableFields([]string{r}), ",")
+			model.fields = gstr.Join(m.mappingAndFilterToTableFields([]string{r}), ",")
 		case []string:
-			model.fields = gstr.Join(m.mappingToTableFields(r), ",")
+			model.fields = gstr.Join(m.mappingAndFilterToTableFields(r), ",")
 		default:
-			model.fields = gstr.Join(m.mappingToTableFields(gutil.Keys(r)), ",")
+			model.fields = gstr.Join(m.mappingAndFilterToTableFields(gutil.Keys(r)), ",")
 		}
 		return model
 	}
@@ -63,14 +65,16 @@ func (m *Model) FieldsEx(fieldNamesOrMapStruct ...interface{}) *Model {
 	model := m.getModel()
 	switch {
 	case length >= 2:
-		model.fieldsEx = gstr.Join(m.mappingToTableFields(gconv.Strings(fieldNamesOrMapStruct)), ",")
+		model.fieldsEx = gstr.Join(m.mappingAndFilterToTableFields(gconv.Strings(fieldNamesOrMapStruct)), ",")
 		return model
 	case length == 1:
 		switch r := fieldNamesOrMapStruct[0].(type) {
 		case string:
-			model.fieldsEx = gstr.Join(m.mappingToTableFields([]string{r}), ",")
+			model.fieldsEx = gstr.Join(m.mappingAndFilterToTableFields([]string{r}), ",")
+		case []string:
+			model.fieldsEx = gstr.Join(m.mappingAndFilterToTableFields(r), ",")
 		default:
-			model.fieldsEx = gstr.Join(m.mappingToTableFields(gutil.Keys(r)), ",")
+			model.fieldsEx = gstr.Join(m.mappingAndFilterToTableFields(gutil.Keys(r)), ",")
 		}
 		return model
 	}

database/gdb/gdb_model_insert.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,7 +8,7 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/os/gtime"
 	"github.com/gogf/gf/text/gstr"
 	"github.com/gogf/gf/util/gconv"
@@ -109,7 +109,7 @@ func (m *Model) Insert(data ...interface{}) (result sql.Result, err error) {
 // see Model.Data.
 func (m *Model) InsertIgnore(data ...interface{}) (result sql.Result, err error) {
 	if len(data) > 0 {
-		return m.Data(data...).Insert()
+		return m.Data(data...).InsertIgnore()
 	}
 	return m.doInsertWithOption(insertOptionIgnore, data...)
 }
@@ -145,7 +145,7 @@ func (m *Model) doInsertWithOption(option int, data ...interface{}) (result sql.
 		}
 	}()
 	if m.data == nil {
-		return nil, errors.New("inserting into table with empty data")
+		return nil, gerror.New("inserting into table with empty data")
 	}
 	var (
 		nowString       = gtime.Now().String()
@@ -207,5 +207,5 @@ func (m *Model) doInsertWithOption(option int, data ...interface{}) (result sql.
 			option,
 		)
 	}
-	return nil, errors.New("inserting into table with invalid data type")
+	return nil, gerror.New("inserting into table with invalid data type")
 }

database/gdb/gdb_model_join.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,7 +13,7 @@ import (
 
 // isSubQuery checks and returns whether given string a sub-query sql string.
 func isSubQuery(s string) bool {
-	s = gstr.TrimLeft(s)
+	s = gstr.TrimLeft(s, "()")
 	if p := gstr.Pos(s, " "); p != -1 {
 		if gstr.Equal(s[:p], "select") {
 			return true
@@ -27,35 +27,9 @@ func isSubQuery(s string) bool {
 // and also with its alias name, like:
 // Table("user").LeftJoin("user_detail", "user_detail.uid=user.uid")
 // Table("user", "u").LeftJoin("user_detail", "ud", "ud.uid=u.uid")
+// Table("user", "u").LeftJoin("SELECT xxx FROM xxx AS a", "a.uid=u.uid")
 func (m *Model) LeftJoin(table ...string) *Model {
-	var (
-		model   = m.getModel()
-		joinStr = ""
-	)
-	if len(table) > 0 {
-		if isSubQuery(table[0]) {
-			joinStr = "(" + table[0] + ")"
-		} else {
-			joinStr = m.db.QuotePrefixTableName(table[0])
-		}
-	}
-	if len(table) > 2 {
-		model.tables += fmt.Sprintf(
-			" LEFT JOIN %s AS %s ON (%s)",
-			joinStr, m.db.QuoteWord(table[1]), table[2],
-		)
-	} else if len(table) == 2 {
-		model.tables += fmt.Sprintf(
-			" LEFT JOIN %s ON (%s)",
-			joinStr, table[1],
-		)
-	} else if len(table) == 1 {
-		model.tables += fmt.Sprintf(
-			" LEFT JOIN %s",
-			joinStr,
-		)
-	}
-	return model
+	return m.doJoin("LEFT", table...)
 }
 
 // RightJoin does "RIGHT JOIN ... ON ..." statement on the model.
@@ -63,35 +37,9 @@ func (m *Model) LeftJoin(table ...string) *Model {
 // and also with its alias name, like:
 // Table("user").RightJoin("user_detail", "user_detail.uid=user.uid")
 // Table("user", "u").RightJoin("user_detail", "ud", "ud.uid=u.uid")
+// Table("user", "u").RightJoin("SELECT xxx FROM xxx AS a", "a.uid=u.uid")
 func (m *Model) RightJoin(table ...string) *Model {
-	var (
-		model   = m.getModel()
-		joinStr = ""
-	)
-	if len(table) > 0 {
-		if isSubQuery(table[0]) {
-			joinStr = "(" + table[0] + ")"
-		} else {
-			joinStr = m.db.QuotePrefixTableName(table[0])
-		}
-	}
-	if len(table) > 2 {
-		model.tables += fmt.Sprintf(
-			" RIGHT JOIN %s AS %s ON (%s)",
-			joinStr, m.db.QuoteWord(table[1]), table[2],
-		)
-	} else if len(table) == 2 {
-		model.tables += fmt.Sprintf(
-			" RIGHT JOIN %s ON (%s)",
-			joinStr, table[1],
-		)
-	} else if len(table) == 1 {
-		model.tables += fmt.Sprintf(
-			" RIGHT JOIN %s",
-			joinStr,
-		)
-	}
-	return model
+	return m.doJoin("RIGHT", table...)
 }
 
 // InnerJoin does "INNER JOIN ... ON ..." statement on the model.
@@ -99,32 +47,47 @@ func (m *Model) RightJoin(table ...string) *Model {
 // and also with its alias name, like:
 // Table("user").InnerJoin("user_detail", "user_detail.uid=user.uid")
 // Table("user", "u").InnerJoin("user_detail", "ud", "ud.uid=u.uid")
+// Table("user", "u").InnerJoin("SELECT xxx FROM xxx AS a", "a.uid=u.uid")
 func (m *Model) InnerJoin(table ...string) *Model {
+	return m.doJoin("INNER", table...)
+}
+
+// doJoin does "LEFT/RIGHT/INNER JOIN ... ON ..." statement on the model.
+// The parameter <table> can be joined table and its joined condition,
+// and also with its alias name, like:
+// Table("user").InnerJoin("user_detail", "user_detail.uid=user.uid")
+// Table("user", "u").InnerJoin("user_detail", "ud", "ud.uid=u.uid")
+// Table("user", "u").InnerJoin("SELECT xxx FROM xxx AS a", "a.uid=u.uid")
+// Related issues:
+// https://github.com/gogf/gf/issues/1024
+func (m *Model) doJoin(operator string, table ...string) *Model {
 	var (
 		model   = m.getModel()
 		joinStr = ""
 	)
 	if len(table) > 0 {
 		if isSubQuery(table[0]) {
-			joinStr = "(" + table[0] + ")"
+			joinStr = gstr.Trim(table[0])
+			if joinStr[0] != '(' {
+				joinStr = "(" + joinStr + ")"
+			}
 		} else {
 			joinStr = m.db.QuotePrefixTableName(table[0])
 		}
 	}
 	if len(table) > 2 {
 		model.tables += fmt.Sprintf(
-			" INNER JOIN %s AS %s ON (%s)",
-			joinStr, m.db.QuoteWord(table[1]), table[2],
+			" %s JOIN %s AS %s ON (%s)",
+			operator, joinStr, m.db.QuoteWord(table[1]), table[2],
 		)
 	} else if len(table) == 2 {
 		model.tables += fmt.Sprintf(
-			" INNER JOIN %s ON (%s)",
-			joinStr, table[1],
+			" %s JOIN %s ON (%s)",
+			operator, joinStr, table[1],
 		)
 	} else if len(table) == 1 {
 		model.tables += fmt.Sprintf(
-			" INNER JOIN %s",
-			joinStr,
+			" %s JOIN %s", operator, joinStr,
 		)
 	}
 	return model

database/gdb/gdb_model_lock.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_model_option.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_model_select.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -123,7 +123,7 @@ func (m *Model) getFieldsFiltered() string {
 // Chunk iterates the query result with given size and callback function.
 func (m *Model) Chunk(limit int, callback func(result Result, err error) bool) {
 	page := m.start
-	if page == 0 {
+	if page <= 0 {
 		page = 1
 	}
 	model := m

database/gdb/gdb_model_time.go

@@ -1,4 +1,4 @@
-// Copyright 2020 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -32,6 +32,10 @@ func (m *Model) Unscoped() *Model {
 // If there's no field name for storing creating time, it returns an empty string.
 // It checks the key with or without cases or chars '-'/'_'/'.'/' '.
 func (m *Model) getSoftFieldNameCreated(table ...string) string {
+	// It checks whether this feature disabled.
+	if m.db.GetConfig().TimeMaintainDisabled {
+		return ""
+	}
 	tableName := ""
 	if len(table) > 0 {
 		tableName = table[0]
@@ -40,7 +44,7 @@ func (m *Model) getSoftFieldNameCreated(table ...string) string {
 	}
 	config := m.db.GetConfig()
 	if config.CreatedAt != "" {
-		return m.getSoftFieldName(tableName, append([]string{config.CreatedAt}, createdFiledNames...))
+		return m.getSoftFieldName(tableName, []string{config.CreatedAt})
 	}
 	return m.getSoftFieldName(tableName, createdFiledNames)
 }
@@ -49,6 +53,10 @@ func (m *Model) getSoftFieldNameCreated(table ...string) string {
 // If there's no field name for storing updating time, it returns an empty string.
 // It checks the key with or without cases or chars '-'/'_'/'.'/' '.
 func (m *Model) getSoftFieldNameUpdated(table ...string) (field string) {
+	// It checks whether this feature disabled.
+	if m.db.GetConfig().TimeMaintainDisabled {
+		return ""
+	}
 	tableName := ""
 	if len(table) > 0 {
 		tableName = table[0]
@@ -57,7 +65,7 @@ func (m *Model) getSoftFieldNameUpdated(table ...string) (field string) {
 	}
 	config := m.db.GetConfig()
 	if config.UpdatedAt != "" {
-		return m.getSoftFieldName(tableName, append([]string{config.UpdatedAt}, updatedFiledNames...))
+		return m.getSoftFieldName(tableName, []string{config.UpdatedAt})
 	}
 	return m.getSoftFieldName(tableName, updatedFiledNames)
 }
@@ -66,6 +74,10 @@ func (m *Model) getSoftFieldNameUpdated(table ...string) (field string) {
 // If there's no field name for storing deleting time, it returns an empty string.
 // It checks the key with or without cases or chars '-'/'_'/'.'/' '.
 func (m *Model) getSoftFieldNameDeleted(table ...string) (field string) {
+	// It checks whether this feature disabled.
+	if m.db.GetConfig().TimeMaintainDisabled {
+		return ""
+	}
 	tableName := ""
 	if len(table) > 0 {
 		tableName = table[0]
@@ -74,7 +86,7 @@ func (m *Model) getSoftFieldNameDeleted(table ...string) (field string) {
 	}
 	config := m.db.GetConfig()
 	if config.UpdatedAt != "" {
-		return m.getSoftFieldName(tableName, append([]string{config.DeletedAt}, deletedFiledNames...))
+		return m.getSoftFieldName(tableName, []string{config.DeletedAt})
 	}
 	return m.getSoftFieldName(tableName, deletedFiledNames)
 }

database/gdb/gdb_model_update.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,7 +8,6 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
 	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/os/gtime"
@@ -39,7 +38,7 @@ func (m *Model) Update(dataAndWhere ...interface{}) (result sql.Result, err erro
 		}
 	}()
 	if m.data == nil {
-		return nil, errors.New("updating table with empty data")
+		return nil, gerror.New("updating table with empty data")
 	}
 	var (
 		updateData                                    = m.data

database/gdb/gdb_model_utility.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -11,6 +11,7 @@ import (
 	"github.com/gogf/gf/container/gset"
 	"github.com/gogf/gf/internal/empty"
 	"github.com/gogf/gf/os/gtime"
+	"github.com/gogf/gf/text/gregex"
 	"github.com/gogf/gf/text/gstr"
 	"github.com/gogf/gf/util/gconv"
 	"github.com/gogf/gf/util/gutil"
@@ -27,31 +28,35 @@ func (m *Model) getModel() *Model {
 	}
 }
 
-// mappingToTableFields mappings and changes given field name to really table field name.
-func (m *Model) mappingToTableFields(fields []string) []string {
+// mappingAndFilterToTableFields mappings and changes given field name to really table field name.
+func (m *Model) mappingAndFilterToTableFields(fields []string) []string {
+	fieldsMap, err := m.db.TableFields(m.tables)
+	if err != nil || len(fieldsMap) == 0 {
+		return fields
+	}
 	var (
-		foundKey    = ""
-		fieldsArray = gstr.SplitAndTrim(gstr.Join(fields, ","), ",")
+		inputFieldsArray  = gstr.SplitAndTrim(gstr.Join(fields, ","), ",")
+		outputFieldsArray = make([]string, 0, len(inputFieldsArray))
 	)
-
-	if fieldsMap, err := m.db.TableFields(m.tables); err == nil {
-		fieldsKeyMap := make(map[string]interface{}, len(fieldsMap))
-		for k, _ := range fieldsMap {
-			fieldsKeyMap[k] = nil
-		}
-		for i, v := range fieldsArray {
-			if _, ok := fieldsKeyMap[v]; !ok {
-				if gstr.Contains(v, " ") || gstr.Contains(v, ".") {
-					continue
-				}
-				foundKey, _ = gutil.MapPossibleItemByKey(fieldsKeyMap, v)
-				if foundKey != "" {
-					fieldsArray[i] = foundKey
+	fieldsKeyMap := make(map[string]interface{}, len(fieldsMap))
+	for k, _ := range fieldsMap {
+		fieldsKeyMap[k] = nil
+	}
+	for _, field := range inputFieldsArray {
+		if _, ok := fieldsKeyMap[field]; !ok {
+			if !gregex.IsMatchString(regularFieldNameRegPattern, field) {
+				outputFieldsArray = append(outputFieldsArray, field)
+				continue
+			} else {
+				if foundKey, _ := gutil.MapPossibleItemByKey(fieldsKeyMap, field); foundKey != "" {
+					outputFieldsArray = append(outputFieldsArray, foundKey)
 				}
 			}
+		} else {
+			outputFieldsArray = append(outputFieldsArray, field)
 		}
 	}
-	return fieldsArray
+	return outputFieldsArray
 }
 
 // filterDataForInsertOrUpdate does filter feature with data for inserting/updating operations.
@@ -149,19 +154,19 @@ func (m *Model) getLink(master bool) Link {
 	linkType := m.linkType
 	if linkType == 0 {
 		if master {
-			linkType = gLINK_TYPE_MASTER
+			linkType = linkTypeMaster
 		} else {
-			linkType = gLINK_TYPE_SLAVE
+			linkType = linkTypeSlave
 		}
 	}
 	switch linkType {
-	case gLINK_TYPE_MASTER:
+	case linkTypeMaster:
 		link, err := m.db.GetMaster(m.schema)
 		if err != nil {
 			panic(err)
 		}
 		return link
-	case gLINK_TYPE_SLAVE:
+	case linkTypeSlave:
 		link, err := m.db.GetSlave(m.schema)
 		if err != nil {
 			panic(err)
@@ -196,7 +201,7 @@ func (m *Model) formatCondition(limit1 bool, isCountStatement bool) (conditionWh
 	if len(m.whereHolder) > 0 {
 		for _, v := range m.whereHolder {
 			switch v.operator {
-			case gWHERE_HOLDER_WHERE:
+			case whereHolderWhere:
 				if conditionWhere == "" {
 					newWhere, newArgs := formatWhere(
 						m.db, v.where, v.args, m.option&OPTION_OMITEMPTY > 0,
@@ -209,7 +214,7 @@ func (m *Model) formatCondition(limit1 bool, isCountStatement bool) (conditionWh
 				}
 				fallthrough
 
-			case gWHERE_HOLDER_AND:
+			case whereHolderAnd:
 				newWhere, newArgs := formatWhere(
 					m.db, v.where, v.args, m.option&OPTION_OMITEMPTY > 0,
 				)
@@ -224,7 +229,7 @@ func (m *Model) formatCondition(limit1 bool, isCountStatement bool) (conditionWh
 					conditionArgs = append(conditionArgs, newArgs...)
 				}
 
-			case gWHERE_HOLDER_OR:
+			case whereHolderOr:
 				newWhere, newArgs := formatWhere(
 					m.db, v.where, v.args, m.option&OPTION_OMITEMPTY > 0,
 				)
@@ -247,9 +252,6 @@ func (m *Model) formatCondition(limit1 bool, isCountStatement bool) (conditionWh
 	if m.groupBy != "" {
 		conditionExtra += " GROUP BY " + m.groupBy
 	}
-	if m.orderBy != "" {
-		conditionExtra += " ORDER BY " + m.orderBy
-	}
 	if len(m.having) > 0 {
 		havingStr, havingArgs := formatWhere(
 			m.db, m.having[0], gconv.Interfaces(m.having[1]), m.option&OPTION_OMITEMPTY > 0,
@@ -259,6 +261,9 @@ func (m *Model) formatCondition(limit1 bool, isCountStatement bool) (conditionWh
 			conditionArgs = append(conditionArgs, havingArgs...)
 		}
 	}
+	if m.orderBy != "" {
+		conditionExtra += " ORDER BY " + m.orderBy
+	}
 	if !isCountStatement {
 		if m.limit != 0 {
 			if m.start >= 0 {

database/gdb/gdb_result.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_schema.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_transaction.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -59,7 +59,7 @@ func (tx *TX) GetAll(sql string, args ...interface{}) (Result, error) {
 		return nil, err
 	}
 	defer rows.Close()
-	return tx.db.rowsToResult(rows)
+	return tx.db.convertRowsToResult(rows)
 }
 
 // GetOne queries and returns one record from database.

database/gdb/gdb_type_record.go

@@ -1,4 +1,4 @@
-// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,9 +8,9 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"github.com/gogf/gf/container/gmap"
 	"github.com/gogf/gf/encoding/gparser"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/util/gconv"
 	"reflect"
 )
@@ -52,24 +52,24 @@ func (r Record) Struct(pointer interface{}) error {
 	}
 	// Special handling for parameter type: reflect.Value
 	if _, ok := pointer.(reflect.Value); ok {
-		return mapToStruct(r.Map(), pointer)
+		return convertMapToStruct(r.Map(), pointer)
 	}
 	var (
 		reflectValue = reflect.ValueOf(pointer)
 		reflectKind  = reflectValue.Kind()
 	)
 	if reflectKind != reflect.Ptr {
-		return errors.New("parameter should be type of *struct/**struct")
+		return gerror.New("parameter should be type of *struct/**struct")
 	}
 	reflectValue = reflectValue.Elem()
 	reflectKind = reflectValue.Kind()
 	if reflectKind == reflect.Invalid {
-		return errors.New("parameter is an invalid pointer, maybe nil")
+		return gerror.New("parameter is an invalid pointer, maybe nil")
 	}
 	if reflectKind != reflect.Ptr && reflectKind != reflect.Struct {
-		return errors.New("parameter should be type of *struct/**struct")
+		return gerror.New("parameter should be type of *struct/**struct")
 	}
-	return mapToStruct(r.Map(), pointer)
+	return convertMapToStruct(r.Map(), pointer)
 }
 
 // IsEmpty checks and returns whether <r> is empty.

database/gdb/gdb_type_record_deprecated.go

@@ -1,4 +1,4 @@
-// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_type_result.go

@@ -1,4 +1,4 @@
-// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -224,19 +224,16 @@ func (r Result) Structs(pointer interface{}) (err error) {
 		itemKind    = itemType.Kind()
 	)
 	for i := 0; i < length; i++ {
+		var elem reflect.Value
 		if itemKind == reflect.Ptr {
-			e := reflect.New(itemType.Elem()).Elem()
-			if err = r[i].Struct(e); err != nil {
-				return fmt.Errorf(`slice element conversion failed: %s`, err.Error())
-			}
-			array.Index(i).Set(e.Addr())
+			elem = reflect.New(itemType.Elem())
 		} else {
-			e := reflect.New(itemType).Elem()
-			if err = r[i].Struct(e); err != nil {
-				return fmt.Errorf(`slice element conversion failed: %s`, err.Error())
-			}
-			array.Index(i).Set(e)
+			elem = reflect.New(itemType).Elem()
 		}
+		if err = r[i].Struct(elem); err != nil {
+			return fmt.Errorf(`slice element conversion failed: %s`, err.Error())
+		}
+		array.Index(i).Set(elem)
 	}
 	reflect.ValueOf(pointer).Elem().Set(array)
 	return nil

database/gdb/gdb_type_result_deprecated.go

@@ -1,4 +1,4 @@
-// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_type_result_scanlist.go

@@ -1,4 +1,4 @@
-// Copyright 2020 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,8 +8,8 @@ package gdb
 
 import (
 	"database/sql"
-	"errors"
 	"fmt"
+	"github.com/gogf/gf/errors/gerror"
 	"github.com/gogf/gf/text/gstr"
 	"github.com/gogf/gf/util/gconv"
 	"github.com/gogf/gf/util/gutil"
@@ -45,14 +45,14 @@ import (
 func (r Result) ScanList(listPointer interface{}, attributeName string, relation ...string) (err error) {
 	// Necessary checks for parameters.
 	if attributeName == "" {
-		return errors.New(`attributeName should not be empty`)
+		return gerror.New(`attributeName should not be empty`)
 	}
 	if len(relation) > 0 {
 		if len(relation) < 2 {
-			return errors.New(`relation name and key should are both necessary`)
+			return gerror.New(`relation name and key should are both necessary`)
 		}
 		if relation[0] == "" || relation[1] == "" {
-			return errors.New(`relation name and key should not be empty`)
+			return gerror.New(`relation name and key should not be empty`)
 		}
 	}
 

database/gdb/gdb_z_driver_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_example_test.go

@@ -1,4 +1,4 @@
-// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_init_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -57,7 +57,7 @@ func init() {
 	nodePrefix.Prefix = PREFIX1
 	gdb.AddConfigNode("test", configNode)
 	gdb.AddConfigNode("prefix", nodePrefix)
-	gdb.AddConfigNode(gdb.DEFAULT_GROUP_NAME, configNode)
+	gdb.AddConfigNode(gdb.DefaultGroupName, configNode)
 	// Default db.
 	if r, err := gdb.New(); err != nil {
 		gtest.Error(err)

database/gdb/gdb_z_mysql_association_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_mysql_basic_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_mysql_ctx_test.go

@@ -0,0 +1,64 @@
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gdb_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/gogf/gf/database/gdb"
+	"github.com/gogf/gf/test/gtest"
+)
+
+func Test_Ctx(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		db, err := gdb.Instance()
+		t.Assert(err, nil)
+
+		err1 := db.PingMaster()
+		err2 := db.PingSlave()
+		t.Assert(err1, nil)
+		t.Assert(err2, nil)
+
+		newDb := db.Ctx(context.Background())
+		t.AssertNE(newDb, nil)
+	})
+}
+
+func Test_Ctx_Query(t *testing.T) {
+	db.GetLogger().SetCtxKeys("SpanId", "TraceId")
+	gtest.C(t, func(t *gtest.T) {
+		db.SetDebug(true)
+		defer db.SetDebug(false)
+		ctx := context.WithValue(context.Background(), "TraceId", "12345678")
+		ctx = context.WithValue(ctx, "SpanId", "0.1")
+		db.Ctx(ctx).Query("select 1")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		db.SetDebug(true)
+		defer db.SetDebug(false)
+		db.Query("select 2")
+	})
+}
+
+func Test_Ctx_Model(t *testing.T) {
+	table := createInitTable()
+	defer dropTable(table)
+	db.GetLogger().SetCtxKeys("SpanId", "TraceId")
+	gtest.C(t, func(t *gtest.T) {
+		db.SetDebug(true)
+		defer db.SetDebug(false)
+		ctx := context.WithValue(context.Background(), "TraceId", "12345678")
+		ctx = context.WithValue(ctx, "SpanId", "0.1")
+		db.Model(table).Ctx(ctx).All()
+	})
+	gtest.C(t, func(t *gtest.T) {
+		db.SetDebug(true)
+		defer db.SetDebug(false)
+		db.Model(table).All()
+	})
+}

database/gdb/gdb_z_mysql_internal_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -9,6 +9,7 @@ package gdb
 import (
 	"fmt"
 	"github.com/go-sql-driver/mysql"
+	"github.com/gogf/gf/container/gvar"
 	"github.com/gogf/gf/os/gcmd"
 	"github.com/gogf/gf/os/gtime"
 	"github.com/gogf/gf/test/gtest"
@@ -46,7 +47,7 @@ func init() {
 		MaxOpenConnCount: 10,
 		MaxConnLifetime:  600,
 	}
-	AddConfigNode(DEFAULT_GROUP_NAME, configNode)
+	AddConfigNode(DefaultGroupName, configNode)
 	// Default db.
 	if r, err := New(); err != nil {
 		gtest.Error(err)
@@ -312,3 +313,26 @@ func Test_isSubQuery(t *testing.T) {
 		t.Assert(isSubQuery("select 1"), true)
 	})
 }
+
+func TestResult_Structs1(t *testing.T) {
+	type A struct {
+		Id int `orm:"id"`
+	}
+	type B struct {
+		*A
+		Name string
+	}
+	gtest.C(t, func(t *gtest.T) {
+		r := Result{
+			Record{"id": gvar.New(nil), "name": gvar.New("john")},
+			Record{"id": gvar.New(nil), "name": gvar.New("smith")},
+		}
+		array := make([]*B, 2)
+		err := r.Structs(&array)
+		t.Assert(err, nil)
+		t.Assert(array[0].Id, 0)
+		t.Assert(array[1].Id, 0)
+		t.Assert(array[0].Name, "john")
+		t.Assert(array[1].Name, "smith")
+	})
+}

database/gdb/gdb_z_mysql_method_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -1405,3 +1405,67 @@ func Test_Empty_Slice_Argument(t *testing.T) {
 		t.Assert(len(result), 0)
 	})
 }
+
+// update counter test
+func Test_DB_UpdateCounter(t *testing.T) {
+	tableName := "gf_update_counter_test_" + gtime.TimestampNanoStr()
+	_, err := db.Exec(fmt.Sprintf(`
+		CREATE TABLE IF NOT EXISTS %s (
+		id int(10) unsigned NOT NULL,
+		views  int(8) unsigned DEFAULT '0'  NOT NULL ,
+		updated_time int(10) unsigned DEFAULT '0' NOT NULL
+	) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+	`, tableName))
+	if err != nil {
+		gtest.Fatal(err)
+	}
+	defer dropTable(tableName)
+
+	gtest.C(t, func(t *gtest.T) {
+		insertData := g.Map{
+			"id":           1,
+			"views":        0,
+			"updated_time": 0,
+		}
+		_, err = db.Insert(tableName, insertData)
+		t.Assert(err, nil)
+	})
+
+	gtest.C(t, func(t *gtest.T) {
+		gdbCounter := &gdb.Counter{
+			Field: "views",
+			Value: 1,
+		}
+		updateData := g.Map{
+			"views":        gdbCounter,
+			"updated_time": gtime.Now().Unix(),
+		}
+		result, err := db.Update(tableName, updateData, "id", 1)
+		t.Assert(err, nil)
+		n, _ := result.RowsAffected()
+		t.Assert(n, 1)
+		one, err := db.Table(tableName).Where("id", 1).One()
+		t.Assert(err, nil)
+		t.Assert(one["id"].Int(), 1)
+		t.Assert(one["views"].Int(), 1)
+	})
+
+	gtest.C(t, func(t *gtest.T) {
+		gdbCounter := &gdb.Counter{
+			Field: "views",
+			Value: -1,
+		}
+		updateData := g.Map{
+			"views":        gdbCounter,
+			"updated_time": gtime.Now().Unix(),
+		}
+		result, err := db.Update(tableName, updateData, "id", 1)
+		t.Assert(err, nil)
+		n, _ := result.RowsAffected()
+		t.Assert(n, 1)
+		one, err := db.Table(tableName).Where("id", 1).One()
+		t.Assert(err, nil)
+		t.Assert(one["id"].Int(), 1)
+		t.Assert(one["views"].Int(), 0)
+	})
+}

database/gdb/gdb_z_mysql_model_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -2717,6 +2717,49 @@ func Test_Model_FieldsEx_AutoMapping(t *testing.T) {
 	})
 }
 
+func Test_Model_Fields_Struct(t *testing.T) {
+	table := createInitTable()
+	defer dropTable(table)
+
+	type A struct {
+		Passport string
+		Password string
+	}
+	type B struct {
+		A
+		NickName string
+	}
+	gtest.C(t, func(t *gtest.T) {
+		one, err := db.Table(table).Fields(A{}).Where("id", 2).One()
+		t.Assert(err, nil)
+		t.Assert(len(one), 2)
+		t.Assert(one["passport"], "user_2")
+		t.Assert(one["password"], "pass_2")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		one, err := db.Table(table).Fields(&A{}).Where("id", 2).One()
+		t.Assert(err, nil)
+		t.Assert(len(one), 2)
+		t.Assert(one["passport"], "user_2")
+		t.Assert(one["password"], "pass_2")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		one, err := db.Table(table).Fields(B{}).Where("id", 2).One()
+		t.Assert(err, nil)
+		t.Assert(len(one), 3)
+		t.Assert(one["passport"], "user_2")
+		t.Assert(one["password"], "pass_2")
+		t.Assert(one["nickname"], "name_2")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		one, err := db.Table(table).Fields(&B{}).Where("id", 2).One()
+		t.Assert(err, nil)
+		t.Assert(len(one), 3)
+		t.Assert(one["passport"], "user_2")
+		t.Assert(one["password"], "pass_2")
+		t.Assert(one["nickname"], "name_2")
+	})
+}
 func Test_Model_NullField(t *testing.T) {
 	table := createTable()
 	defer dropTable(table)
@@ -2793,3 +2836,204 @@ func Test_Model_HasField(t *testing.T) {
 		t.Assert(err, nil)
 	})
 }
+
+// Issue: https://github.com/gogf/gf/issues/1002
+func Test_Model_Issue1002(t *testing.T) {
+	table := createTable()
+	defer dropTable(table)
+
+	result, err := db.Table(table).Data(g.Map{
+		"id":          1,
+		"passport":    "port_1",
+		"password":    "pass_1",
+		"nickname":    "name_2",
+		"create_time": "2020-10-27 19:03:33",
+	}).Insert()
+	gtest.Assert(err, nil)
+	n, _ := result.RowsAffected()
+	gtest.Assert(n, 1)
+
+	// where + string.
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>'2020-10-27 19:03:32' and create_time<'2020-10-27 19:03:34'").Value()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>'2020-10-27 19:03:32' and create_time<'2020-10-27 19:03:34'").FindValue()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Where("create_time>'2020-10-27 19:03:32' and create_time<'2020-10-27 19:03:34'").FindValue("id")
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	// where + string arguments.
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>? and create_time<?", "2020-10-27 19:03:32", "2020-10-27 19:03:34").Value()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>? and create_time<?", "2020-10-27 19:03:32", "2020-10-27 19:03:34").FindValue()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Where("create_time>? and create_time<?", "2020-10-27 19:03:32", "2020-10-27 19:03:34").FindValue("id")
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	// where + gtime.Time arguments.
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>? and create_time<?", gtime.New("2020-10-27 19:03:32"), gtime.New("2020-10-27 19:03:34")).Value()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>? and create_time<?", gtime.New("2020-10-27 19:03:32"), gtime.New("2020-10-27 19:03:34")).FindValue()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Where("create_time>? and create_time<?", gtime.New("2020-10-27 19:03:32"), gtime.New("2020-10-27 19:03:34")).FindValue("id")
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	// where + time.Time arguments, UTC.
+	t1, _ := time.Parse("2006-01-02 15:04:05", "2020-10-27 19:03:32")
+	t2, _ := time.Parse("2006-01-02 15:04:05", "2020-10-27 19:03:34")
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>? and create_time<?", t1, t2).Value()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Fields("id").Where("create_time>? and create_time<?", t1, t2).FindValue()
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		v, err := db.Table(table).Where("create_time>? and create_time<?", t1, t2).FindValue("id")
+		t.Assert(err, nil)
+		t.Assert(v.Int(), 1)
+	})
+}
+
+func createTableForTimeZoneTest() string {
+	tableName := "user_" + gtime.Now().TimestampNanoStr()
+	if _, err := db.Exec(fmt.Sprintf(`
+	    CREATE TABLE %s (
+	        id          int(10) unsigned NOT NULL AUTO_INCREMENT,
+	        passport    varchar(45) NULL,
+	        password    char(32) NULL,
+	        nickname    varchar(45) NULL,
+	        created_at timestamp NULL,
+ 			updated_at timestamp NULL,
+			deleted_at timestamp NULL,
+	        PRIMARY KEY (id)
+	    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+	    `, tableName,
+	)); err != nil {
+		gtest.Fatal(err)
+	}
+	return tableName
+}
+
+// https://github.com/gogf/gf/issues/1012
+func Test_TimeZoneInsert(t *testing.T) {
+	tableName := createTableForTimeZoneTest()
+	defer dropTable(tableName)
+
+	asiaLocal, err := time.LoadLocation("Asia/Shanghai")
+	gtest.Assert(err, nil)
+
+	CreateTime := "2020-11-22 12:23:45"
+	UpdateTime := "2020-11-22 13:23:45"
+	DeleteTime := "2020-11-22 14:23:45"
+	type User struct {
+		Id        int         `json:"id"`
+		CreatedAt *gtime.Time `json:"created_at"`
+		UpdatedAt gtime.Time  `json:"updated_at"`
+		DeletedAt time.Time   `json:"deleted_at"`
+	}
+	t1, _ := time.ParseInLocation("2006-01-02 15:04:05", CreateTime, asiaLocal)
+	t2, _ := time.ParseInLocation("2006-01-02 15:04:05", UpdateTime, asiaLocal)
+	t3, _ := time.ParseInLocation("2006-01-02 15:04:05", DeleteTime, asiaLocal)
+	u := &User{
+		Id:        1,
+		CreatedAt: gtime.New(t1.UTC()),
+		UpdatedAt: *gtime.New(t2.UTC()),
+		DeletedAt: t3.UTC(),
+	}
+
+	gtest.C(t, func(t *gtest.T) {
+		_, _ = db.Table(tableName).Unscoped().Insert(u)
+		userEntity := &User{}
+		err := db.Table(tableName).Where("id", 1).Unscoped().Struct(&userEntity)
+		t.Assert(err, nil)
+		t.Assert(userEntity.CreatedAt.String(), "2020-11-22 04:23:45")
+		t.Assert(userEntity.UpdatedAt.String(), "2020-11-22 05:23:45")
+		t.Assert(gtime.NewFromTime(userEntity.DeletedAt).String(), "2020-11-22 06:23:45")
+	})
+}
+
+func Test_Model_Fields_Map_Struct(t *testing.T) {
+	table := createInitTable()
+	defer dropTable(table)
+	// map
+	gtest.C(t, func(t *gtest.T) {
+		result, err := db.Table(table).Fields(g.Map{
+			"ID":         1,
+			"PASSPORT":   1,
+			"NONE_EXIST": 1,
+		}).Where("id", 1).One()
+		t.Assert(err, nil)
+		t.Assert(len(result), 2)
+		t.Assert(result["id"], 1)
+		t.Assert(result["passport"], "user_1")
+	})
+	// struct
+	gtest.C(t, func(t *gtest.T) {
+		type A struct {
+			ID       int
+			PASSPORT string
+			XXX_TYPE int
+		}
+		var a = A{}
+		err := db.Table(table).Fields(a).Where("id", 1).Struct(&a)
+		t.Assert(err, nil)
+		t.Assert(a.ID, 1)
+		t.Assert(a.PASSPORT, "user_1")
+		t.Assert(a.XXX_TYPE, 0)
+	})
+	// *struct
+	gtest.C(t, func(t *gtest.T) {
+		type A struct {
+			ID       int
+			PASSPORT string
+			XXX_TYPE int
+		}
+		var a *A
+		err := db.Table(table).Fields(a).Where("id", 1).Struct(&a)
+		t.Assert(err, nil)
+		t.Assert(a.ID, 1)
+		t.Assert(a.PASSPORT, "user_1")
+		t.Assert(a.XXX_TYPE, 0)
+	})
+	// **struct
+	gtest.C(t, func(t *gtest.T) {
+		type A struct {
+			ID       int
+			PASSPORT string
+			XXX_TYPE int
+		}
+		var a *A
+		err := db.Table(table).Fields(&a).Where("id", 1).Struct(&a)
+		t.Assert(err, nil)
+		t.Assert(a.ID, 1)
+		t.Assert(a.PASSPORT, "user_1")
+		t.Assert(a.XXX_TYPE, 0)
+	})
+}

database/gdb/gdb_z_mysql_raw_test.go

@@ -0,0 +1,86 @@
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gdb_test
+
+import (
+	"github.com/gogf/gf/frame/g"
+	"testing"
+
+	"github.com/gogf/gf/database/gdb"
+	"github.com/gogf/gf/test/gtest"
+)
+
+func Test_Insert_Raw(t *testing.T) {
+	table := createTable()
+	defer dropTable(table)
+
+	gtest.C(t, func(t *gtest.T) {
+		user := db.Table(table)
+		result, err := user.Filter().Data(g.Map{
+			"id":          gdb.Raw("id+2"),
+			"passport":    "port_1",
+			"password":    "pass_1",
+			"nickname":    "name_1",
+			"create_time": gdb.Raw("now()"),
+		}).Insert()
+		t.Assert(err, nil)
+		n, _ := result.LastInsertId()
+		t.Assert(n, 2)
+	})
+}
+
+func Test_BatchInsert_Raw(t *testing.T) {
+	table := createTable()
+	defer dropTable(table)
+
+	gtest.C(t, func(t *gtest.T) {
+		user := db.Table(table)
+		result, err := user.Filter().Data(
+			g.List{
+				g.Map{
+					"id":          gdb.Raw("id+2"),
+					"passport":    "port_2",
+					"password":    "pass_2",
+					"nickname":    "name_2",
+					"create_time": gdb.Raw("now()"),
+				},
+				g.Map{
+					"id":          gdb.Raw("id+4"),
+					"passport":    "port_4",
+					"password":    "pass_4",
+					"nickname":    "name_4",
+					"create_time": gdb.Raw("now()"),
+				},
+			},
+		).Insert()
+		t.Assert(err, nil)
+		n, _ := result.LastInsertId()
+		t.Assert(n, 4)
+	})
+}
+
+func Test_Update_Raw(t *testing.T) {
+	table := createInitTable()
+	defer dropTable(table)
+
+	gtest.C(t, func(t *gtest.T) {
+		user := db.Table(table)
+		result, err := user.Data(g.Map{
+			"id":          gdb.Raw("id+100"),
+			"create_time": gdb.Raw("now()"),
+		}).Where("id", 1).Update()
+		t.Assert(err, nil)
+		n, _ := result.RowsAffected()
+		t.Assert(n, 1)
+	})
+	gtest.C(t, func(t *gtest.T) {
+		user := db.Table(table)
+		n, err := user.Where("id", 101).Count()
+		t.Assert(err, nil)
+		t.Assert(n, 1)
+	})
+}

database/gdb/gdb_z_mysql_struct_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_mysql_time_maintain_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_mysql_transaction_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -7,9 +7,9 @@
 package gdb_test
 
 import (
-	"errors"
 	"fmt"
 	"github.com/gogf/gf/database/gdb"
+	"github.com/gogf/gf/errors/gerror"
 	"testing"
 
 	"github.com/gogf/gf/frame/g"
@@ -731,7 +731,7 @@ func Test_Transaction(t *testing.T) {
 			}); err != nil {
 				t.Error(err)
 			}
-			return errors.New("error")
+			return gerror.New("error")
 		})
 		t.AssertNE(err, nil)
 

database/gdb/gdb_z_mysql_types_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gdb/gdb_z_oracle_internal_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,

database/gredis/gredis_config.go

@@ -19,8 +19,8 @@ import (
 )
 
 const (
-	DEFAULT_GROUP_NAME = "default" // Default configuration group name.
-	DEFAULT_REDIS_PORT = 6379      // Default redis port configuration if not passed.
+	DefaultGroupName = "default" // Default configuration group name.
+	DefaultRedisPort = 6379      // Default redis port configuration if not passed.
 )
 
 var (
@@ -31,7 +31,7 @@ var (
 // SetConfig sets the global configuration for specified group.
 // If <name> is not passed, it sets configuration for the default group name.
 func SetConfig(config Config, name ...string) {
-	group := DEFAULT_GROUP_NAME
+	group := DefaultGroupName
 	if len(name) > 0 {
 		group = name[0]
 	}
@@ -44,7 +44,7 @@ func SetConfig(config Config, name ...string) {
 // SetConfigByStr sets the global configuration for specified group with string.
 // If <name> is not passed, it sets configuration for the default group name.
 func SetConfigByStr(str string, name ...string) error {
-	group := DEFAULT_GROUP_NAME
+	group := DefaultGroupName
 	if len(name) > 0 {
 		group = name[0]
 	}
@@ -60,7 +60,7 @@ func SetConfigByStr(str string, name ...string) error {
 // GetConfig returns the global configuration with specified group name.
 // If <name> is not passed, it returns configuration of the default group name.
 func GetConfig(name ...string) (config Config, ok bool) {
-	group := DEFAULT_GROUP_NAME
+	group := DefaultGroupName
 	if len(name) > 0 {
 		group = name[0]
 	}
@@ -73,7 +73,7 @@ func GetConfig(name ...string) (config Config, ok bool) {
 // RemoveConfig removes the global configuration with specified group.
 // If <name> is not passed, it removes configuration of the default group name.
 func RemoveConfig(name ...string) {
-	group := DEFAULT_GROUP_NAME
+	group := DefaultGroupName
 	if len(name) > 0 {
 		group = name[0]
 	}
@@ -96,7 +96,7 @@ func ConfigFromStr(str string) (config Config, err error) {
 			Pass: array[4],
 		}
 		if config.Port == 0 {
-			config.Port = DEFAULT_REDIS_PORT
+			config.Port = DefaultRedisPort
 		}
 		if v, ok := parse["maxIdle"]; ok {
 			config.MaxIdle = gconv.Int(v)
@@ -127,7 +127,7 @@ func ConfigFromStr(str string) (config Config, err error) {
 			Pass: array[4],
 		}
 		if config.Port == 0 {
-			config.Port = DEFAULT_REDIS_PORT
+			config.Port = DefaultRedisPort
 		}
 	} else {
 		err = gerror.Newf(`invalid redis configuration: "%s"`, str)

database/gredis/gredis_instance.go

@@ -17,7 +17,7 @@ var (
 // The <name> param is unnecessary, if <name> is not passed,
 // it returns a redis instance with default configuration group.
 func Instance(name ...string) *Redis {
-	group := DEFAULT_GROUP_NAME
+	group := DefaultGroupName
 	if len(name) > 0 && name[0] != "" {
 		group = name[0]
 	}

encoding/gjson/gjson_api.go

@@ -1,4 +1,4 @@
-// Copyright 2017 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -370,99 +370,60 @@ func (j *Json) GetMapToMapsDeep(pattern string, pointer interface{}, mapping ...
 	return gconv.MapToMapsDeep(j.Get(pattern), pointer, mapping...)
 }
 
-// ToMap converts current Json object to map[string]interface{}.
+// Map converts current Json object to map[string]interface{}.
 // It returns nil if fails.
-func (j *Json) ToMap() map[string]interface{} {
+func (j *Json) Map() map[string]interface{} {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
 	return gconv.Map(*(j.p))
 }
 
-// ToArray converts current Json object to []interface{}.
+// Array converts current Json object to []interface{}.
 // It returns nil if fails.
-func (j *Json) ToArray() []interface{} {
+func (j *Json) Array() []interface{} {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
 	return gconv.Interfaces(*(j.p))
 }
 
-// ToStruct converts current Json object to specified object.
+// Struct converts current Json object to specified object.
 // The <pointer> should be a pointer type of *struct.
-func (j *Json) ToStruct(pointer interface{}, mapping ...map[string]string) error {
+func (j *Json) Struct(pointer interface{}, mapping ...map[string]string) error {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
 	return gconv.Struct(*(j.p), pointer, mapping...)
 }
 
-// ToStructDeep converts current Json object to specified object recursively.
-// The <pointer> should be a pointer type of *struct.
-// Deprecated, use ToStruct instead.
-func (j *Json) ToStructDeep(pointer interface{}, mapping ...map[string]string) error {
-	j.mu.RLock()
-	defer j.mu.RUnlock()
-	return gconv.StructDeep(*(j.p), pointer, mapping...)
-}
-
-// ToStructs converts current Json object to specified object slice.
+// Structs converts current Json object to specified object slice.
 // The <pointer> should be a pointer type of []struct/*struct.
-func (j *Json) ToStructs(pointer interface{}, mapping ...map[string]string) error {
+func (j *Json) Structs(pointer interface{}, mapping ...map[string]string) error {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
 	return gconv.Structs(*(j.p), pointer, mapping...)
 }
 
-// ToStructsDeep converts current Json object to specified object slice recursively.
-// The <pointer> should be a pointer type of []struct/*struct.
-func (j *Json) ToStructsDeep(pointer interface{}, mapping ...map[string]string) error {
-	j.mu.RLock()
-	defer j.mu.RUnlock()
-	return gconv.StructsDeep(*(j.p), pointer, mapping...)
-}
-
-// ToScan automatically calls Struct or Structs function according to the type of parameter
+// Scan automatically calls Struct or Structs function according to the type of parameter
 // <pointer> to implement the converting..
-func (j *Json) ToScan(pointer interface{}, mapping ...map[string]string) error {
+func (j *Json) Scan(pointer interface{}, mapping ...map[string]string) error {
 	return gconv.Scan(*(j.p), pointer, mapping...)
 }
 
-// ToScanDeep automatically calls StructDeep or StructsDeep function according to the type of
-// parameter <pointer> to implement the converting..
-func (j *Json) ToScanDeep(pointer interface{}, mapping ...map[string]string) error {
-	return gconv.ScanDeep(*(j.p), pointer, mapping...)
-}
-
-// ToMapToMap converts current Json object to specified map variable.
+// MapToMap converts current Json object to specified map variable.
 // The parameter of <pointer> should be type of *map.
-func (j *Json) ToMapToMap(pointer interface{}, mapping ...map[string]string) error {
+func (j *Json) MapToMap(pointer interface{}, mapping ...map[string]string) error {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
 	return gconv.MapToMap(*(j.p), pointer, mapping...)
 }
 
-// ToMapToMapDeep converts current Json object to specified map variable recursively.
-// The parameter of <pointer> should be type of *map.
-func (j *Json) ToMapToMapDeep(pointer interface{}, mapping ...map[string]string) error {
-	j.mu.RLock()
-	defer j.mu.RUnlock()
-	return gconv.MapToMapDeep(*(j.p), pointer, mapping...)
-}
-
-// ToMapToMaps converts current Json object to specified map variable slice.
+// MapToMaps converts current Json object to specified map variable slice.
 // The parameter of <pointer> should be type of []map/*map.
-func (j *Json) ToMapToMaps(pointer interface{}, mapping ...map[string]string) error {
+func (j *Json) MapToMaps(pointer interface{}, mapping ...map[string]string) error {
 	j.mu.RLock()
 	defer j.mu.RUnlock()
 	return gconv.MapToMaps(*(j.p), pointer, mapping...)
 }
 
-// ToMapToMapsDeep converts current Json object to specified map variable slice recursively.
-// The parameter of <pointer> should be type of []map/*map.
-func (j *Json) ToMapToMapsDeep(pointer interface{}, mapping ...map[string]string) error {
-	j.mu.RLock()
-	defer j.mu.RUnlock()
-	return gconv.MapToMapsDeep(*(j.p), pointer, mapping...)
-}
-
 // Dump prints current Json object with more manually readable.
 func (j *Json) Dump() {
 	j.mu.RLock()

encoding/gjson/gjson_deprecated.go

@@ -0,0 +1,113 @@
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gjson
+
+import "github.com/gogf/gf/util/gconv"
+
+// ToMap converts current Json object to map[string]interface{}.
+// It returns nil if fails.
+// Deprecated, use Map instead.
+func (j *Json) ToMap() map[string]interface{} {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.Map(*(j.p))
+}
+
+// ToArray converts current Json object to []interface{}.
+// It returns nil if fails.
+// Deprecated, use Array instead.
+func (j *Json) ToArray() []interface{} {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.Interfaces(*(j.p))
+}
+
+// ToStruct converts current Json object to specified object.
+// The <pointer> should be a pointer type of *struct.
+// Deprecated, use Struct instead.
+func (j *Json) ToStruct(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.Struct(*(j.p), pointer, mapping...)
+}
+
+// ToStructDeep converts current Json object to specified object recursively.
+// The <pointer> should be a pointer type of *struct.
+// Deprecated, use Struct instead.
+func (j *Json) ToStructDeep(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.StructDeep(*(j.p), pointer, mapping...)
+}
+
+// ToStructs converts current Json object to specified object slice.
+// The <pointer> should be a pointer type of []struct/*struct.
+// Deprecated, use Structs instead.
+func (j *Json) ToStructs(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.Structs(*(j.p), pointer, mapping...)
+}
+
+// ToStructsDeep converts current Json object to specified object slice recursively.
+// The <pointer> should be a pointer type of []struct/*struct.
+// Deprecated, use Structs instead.
+func (j *Json) ToStructsDeep(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.StructsDeep(*(j.p), pointer, mapping...)
+}
+
+// ToScan automatically calls Struct or Structs function according to the type of parameter
+// <pointer> to implement the converting..
+// Deprecated, use Scan instead.
+func (j *Json) ToScan(pointer interface{}, mapping ...map[string]string) error {
+	return gconv.Scan(*(j.p), pointer, mapping...)
+}
+
+// ToScanDeep automatically calls StructDeep or StructsDeep function according to the type of
+// parameter <pointer> to implement the converting..
+// Deprecated, use Scan instead.
+func (j *Json) ToScanDeep(pointer interface{}, mapping ...map[string]string) error {
+	return gconv.ScanDeep(*(j.p), pointer, mapping...)
+}
+
+// ToMapToMap converts current Json object to specified map variable.
+// The parameter of <pointer> should be type of *map.
+// Deprecated, use MapToMap instead.
+func (j *Json) ToMapToMap(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.MapToMap(*(j.p), pointer, mapping...)
+}
+
+// ToMapToMapDeep converts current Json object to specified map variable recursively.
+// The parameter of <pointer> should be type of *map.
+// Deprecated, use MapToMap instead.
+func (j *Json) ToMapToMapDeep(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.MapToMapDeep(*(j.p), pointer, mapping...)
+}
+
+// ToMapToMaps converts current Json object to specified map variable slice.
+// The parameter of <pointer> should be type of []map/*map.
+// Deprecated, use MapToMaps instead.
+func (j *Json) ToMapToMaps(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.MapToMaps(*(j.p), pointer, mapping...)
+}
+
+// ToMapToMapsDeep converts current Json object to specified map variable slice recursively.
+// The parameter of <pointer> should be type of []map/*map.
+// Deprecated, use MapToMaps instead.
+func (j *Json) ToMapToMapsDeep(pointer interface{}, mapping ...map[string]string) error {
+	j.mu.RLock()
+	defer j.mu.RUnlock()
+	return gconv.MapToMapsDeep(*(j.p), pointer, mapping...)
+}

encoding/gjson/gjson_z_bench_test.go

@@ -7,41 +7,91 @@
 package gjson_test
 
 import (
+	json2 "encoding/json"
 	"testing"
 
 	"github.com/gogf/gf/encoding/gjson"
 )
 
 var (
-	jsonStr1 = `[1,2,3]`
+	jsonStr1 = `{"name":"john","slice":[1,2,3]}`
 	jsonStr2 = `{"CallbackCommand":"Group.CallbackAfterSendMsg","From_Account":"61934946","GroupId":"@TGS#2FLGX67FD","MsgBody":[{"MsgContent":{"Text":"是的"},"MsgType":"TIMTextElem"}],"MsgSeq":23,"MsgTime":1567032819,"Operator_Account":"61934946","Random":2804799576,"Type":"Public"}`
+	jsonObj1 = gjson.New(jsonStr1)
+	jsonObj2 = gjson.New(jsonStr2)
 )
 
-func Benchmark_Validate1(b *testing.B) {
+func Benchmark_Validate_Simple_Json(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		gjson.Valid(jsonStr1)
 	}
 }
 
-func Benchmark_Validate2(b *testing.B) {
+func Benchmark_Validate_Complicated_Json(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		gjson.Valid(jsonStr2)
 	}
 }
 
-func Benchmark_Set1(b *testing.B) {
+func Benchmark_Get_Simple_Json(b *testing.B) {
 	for i := 0; i < b.N; i++ {
-		p := gjson.New(map[string]string{
-			"k1": "v1",
-			"k2": "v2",
-		})
-		p.Set("k1.k11", []int{1, 2, 3})
+		jsonObj1.Get("name")
 	}
 }
 
-func Benchmark_Set2(b *testing.B) {
+func Benchmark_Get_Complicated_Json(b *testing.B) {
 	for i := 0; i < b.N; i++ {
-		p := gjson.New([]string{"a"})
+		jsonObj2.Get("GroupId")
+	}
+}
+
+func Benchmark_Stdlib_Json_Unmarshal_Simple_Json(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		var m map[string]interface{}
+		json2.Unmarshal([]byte(jsonStr1), &m)
+	}
+}
+
+func Benchmark_Stdlib_Json_Unmarshal_Complicated_Json(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		var m map[string]interface{}
+		json2.Unmarshal([]byte(jsonStr2), &m)
+	}
+}
+
+func Benchmark_New_Simple_Json(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		gjson.New(jsonStr1)
+	}
+}
+
+func Benchmark_New_Complicated_Json(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		gjson.New(jsonStr2)
+	}
+}
+
+func Benchmark_Remove_Simple_Json(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		jsonObj1.Remove("name")
+	}
+}
+
+func Benchmark_Remove_Complicated_Json(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		jsonObj2.Remove("GroupId")
+	}
+}
+
+func Benchmark_New_Nil_And_Set_Simple(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		p := gjson.New(nil)
+		p.Set("k", "v")
+	}
+}
+
+func Benchmark_New_Nil_And_Set_Multiple_Level(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		p := gjson.New(nil)
 		p.Set("0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0", []int{1, 2, 3})
 	}
 }

errors/gerror/gerror.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame gf Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -14,67 +14,71 @@ import (
 	"fmt"
 )
 
-// ApiStack is the interface for Stack feature.
-type ApiStack interface {
-	Error() string // It should be en error.
+// apiCode is the interface for Code feature.
+type apiCode interface {
+	Error() string // It should be an error.
+	Code() int
+}
+
+// apiStack is the interface for Stack feature.
+type apiStack interface {
+	Error() string // It should be an error.
 	Stack() string
 }
 
-// ApiCause is the interface for Cause feature.
-type ApiCause interface {
-	Error() string // It should be en error.
+// apiCause is the interface for Cause feature.
+type apiCause interface {
+	Error() string // It should be an error.
 	Cause() error
 }
 
-// ApiLevel is the interface for Current/Next feature.
-type ApiLevel interface {
+// apiCurrent is the interface for Current feature.
+type apiCurrent interface {
+	Error() string // It should be an error.
 	Current() error
+}
+
+// apiNext is the interface for Next feature.
+type apiNext interface {
+	Error() string // It should be an error.
 	Next() error
 }
 
 // New creates and returns an error which is formatted from given text.
 func New(text string) error {
-	if text == "" {
-		return nil
-	}
 	return &Error{
 		stack: callers(),
 		text:  text,
+		code:  -1,
+	}
+}
+
+// Newf returns an error that formats as the given format and args.
+func Newf(format string, args ...interface{}) error {
+	return &Error{
+		stack: callers(),
+		text:  fmt.Sprintf(format, args...),
+		code:  -1,
 	}
 }
 
 // NewSkip creates and returns an error which is formatted from given text.
 // The parameter <skip> specifies the stack callers skipped amount.
 func NewSkip(skip int, text string) error {
-	if text == "" {
-		return nil
-	}
 	return &Error{
 		stack: callers(skip),
 		text:  text,
+		code:  -1,
 	}
 }
 
-// Newf returns an error that formats as the given format and args.
-func Newf(format string, args ...interface{}) error {
-	if format == "" {
-		return nil
-	}
-	return &Error{
-		stack: callers(),
-		text:  fmt.Sprintf(format, args...),
-	}
-}
-
-// NewfSkip returns an error that formats as the given format and args.
+// NewSkipf returns an error that formats as the given format and args.
 // The parameter <skip> specifies the stack callers skipped amount.
-func NewfSkip(skip int, format string, args ...interface{}) error {
-	if format == "" {
-		return nil
-	}
+func NewSkipf(skip int, format string, args ...interface{}) error {
 	return &Error{
 		stack: callers(skip),
 		text:  fmt.Sprintf(format, args...),
+		code:  -1,
 	}
 }
 
@@ -88,6 +92,7 @@ func Wrap(err error, text string) error {
 		error: err,
 		stack: callers(),
 		text:  text,
+		code:  -1,
 	}
 }
 
@@ -102,13 +107,91 @@ func Wrapf(err error, format string, args ...interface{}) error {
 		error: err,
 		stack: callers(),
 		text:  fmt.Sprintf(format, args...),
+		code:  -1,
 	}
 }
 
+// NewCode creates and returns an error that has error code and given text.
+func NewCode(code int, text string) error {
+	return &Error{
+		stack: callers(),
+		text:  text,
+		code:  code,
+	}
+}
+
+// NewCodef returns an error that has error code and formats as the given format and args.
+func NewCodef(code int, format string, args ...interface{}) error {
+	return &Error{
+		stack: callers(),
+		text:  fmt.Sprintf(format, args...),
+		code:  code,
+	}
+}
+
+// NewCodeSkip creates and returns an error which has error code and is formatted from given text.
+// The parameter <skip> specifies the stack callers skipped amount.
+func NewCodeSkip(code, skip int, text string) error {
+	return &Error{
+		stack: callers(skip),
+		text:  text,
+		code:  code,
+	}
+}
+
+// NewCodeSkipf returns an error that has error code and formats as the given format and args.
+// The parameter <skip> specifies the stack callers skipped amount.
+func NewCodeSkipf(code, skip int, format string, args ...interface{}) error {
+	return &Error{
+		stack: callers(skip),
+		text:  fmt.Sprintf(format, args...),
+		code:  code,
+	}
+}
+
+// WrapCode wraps error with code and text.
+// It returns nil if given err is nil.
+func WrapCode(code int, err error, text string) error {
+	if err == nil {
+		return nil
+	}
+	return &Error{
+		error: err,
+		stack: callers(),
+		text:  text,
+		code:  code,
+	}
+}
+
+// WrapCodef wraps error with code and format specifier.
+// It returns nil if given <err> is nil.
+func WrapCodef(code int, err error, format string, args ...interface{}) error {
+	if err == nil {
+		return nil
+	}
+	return &Error{
+		error: err,
+		stack: callers(),
+		text:  fmt.Sprintf(format, args...),
+		code:  code,
+	}
+}
+
+// Cause returns the error code of current error.
+// It returns -1 if it has no error code or it does not implements interface Code.
+func Code(err error) int {
+	if err != nil {
+		if e, ok := err.(apiCode); ok {
+			return e.Code()
+		}
+	}
+	return -1
+}
+
 // Cause returns the root cause error of <err>.
 func Cause(err error) error {
 	if err != nil {
-		if e, ok := err.(ApiCause); ok {
+		if e, ok := err.(apiCause); ok {
 			return e.Cause()
 		}
 	}
@@ -121,7 +204,7 @@ func Stack(err error) string {
 	if err == nil {
 		return ""
 	}
-	if e, ok := err.(ApiStack); ok {
+	if e, ok := err.(apiStack); ok {
 		return e.Stack()
 	}
 	return ""
@@ -133,7 +216,7 @@ func Current(err error) error {
 	if err == nil {
 		return nil
 	}
-	if e, ok := err.(ApiLevel); ok {
+	if e, ok := err.(apiCurrent); ok {
 		return e.Current()
 	}
 	return err
@@ -145,7 +228,7 @@ func Next(err error) error {
 	if err == nil {
 		return nil
 	}
-	if e, ok := err.(ApiLevel); ok {
+	if e, ok := err.(apiNext); ok {
 		return e.Next()
 	}
 	return nil

errors/gerror/gerror_error.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -8,6 +8,7 @@ package gerror
 
 import (
 	"bytes"
+	"errors"
 	"fmt"
 	"io"
 	"runtime"
@@ -19,10 +20,11 @@ type Error struct {
 	error error  // Wrapped error.
 	stack stack  // Stack array, which records the stack information when this error is created or wrapped.
 	text  string // Error text, which is created by New* functions.
+	code  int    // Error code if necessary.
 }
 
 const (
-	gFILTER_KEY = "/errors/gerror/gerror"
+	stackFilterKey = "/errors/gerror/gerror"
 )
 
 var (
@@ -42,13 +44,23 @@ func (err *Error) Error() string {
 	if err == nil {
 		return ""
 	}
-	if err.text != "" {
-		if err.error != nil {
-			return err.text + ": " + err.error.Error()
+	errStr := err.text
+	if err.error != nil {
+		if err.text != "" {
+			errStr += ": "
 		}
-		return err.text
+		errStr += err.error.Error()
 	}
-	return err.error.Error()
+	return errStr
+}
+
+// Code returns the error code.
+// It returns -1 if it has no error code.
+func (err *Error) Code() int {
+	if err == nil {
+		return -1
+	}
+	return err.code
 }
 
 // Cause returns the root cause error.
@@ -60,12 +72,18 @@ func (err *Error) Cause() error {
 	for loop != nil {
 		if loop.error != nil {
 			if e, ok := loop.error.(*Error); ok {
+				// Internal Error struct.
 				loop = e
+			} else if e, ok := loop.error.(apiCause); ok {
+				// Other Error that implements ApiCause interface.
+				return e.Cause()
 			} else {
 				return loop.error
 			}
 		} else {
-			return loop
+			// return loop
+			// To be compatible with Case of https://github.com/pkg/errors.
+			return errors.New(loop.text)
 		}
 	}
 	return nil
@@ -105,9 +123,11 @@ func (err *Error) Stack() string {
 	if err == nil {
 		return ""
 	}
-	loop := err
-	index := 1
-	buffer := bytes.NewBuffer(nil)
+	var (
+		loop   = err
+		index  = 1
+		buffer = bytes.NewBuffer(nil)
+	)
 	for loop != nil {
 		buffer.WriteString(fmt.Sprintf("%d. %-v\n", index, loop))
 		index++
@@ -156,7 +176,7 @@ func formatSubStack(st stack, buffer *bytes.Buffer) {
 	for _, p := range st {
 		if fn := runtime.FuncForPC(p - 1); fn != nil {
 			file, line := fn.FileLine(p - 1)
-			if strings.Contains(file, gFILTER_KEY) {
+			if strings.Contains(file, stackFilterKey) {
 				continue
 			}
 			// Avoid stack string like "<autogenerated>"

errors/gerror/gerror_stack.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -12,13 +12,15 @@ import "runtime"
 type stack []uintptr
 
 const (
-	gMAX_STACK_DEPTH = 32
+	// maxStackDepth marks the max stack depth for error back traces.
+	maxStackDepth = 32
 )
 
 // callers returns the stack callers.
+// Note that it here just retrieves the caller memory address array not the caller information.
 func callers(skip ...int) stack {
 	var (
-		pcs [gMAX_STACK_DEPTH]uintptr
+		pcs [maxStackDepth]uintptr
 		n   = 3
 	)
 	if len(skip) > 0 {

errors/gerror/gerror_z_bench_test.go

@@ -0,0 +1,17 @@
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gerror
+
+import (
+	"testing"
+)
+
+func Benchmark_Stack(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		callers()
+	}
+}

errors/gerror/gerror_z_unit_test.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -34,7 +34,6 @@ func Test_Wrap(t *testing.T) {
 		t.AssertNE(err, nil)
 		t.Assert(err.Error(), "3: 2: 1")
 	})
-
 	gtest.C(t, func(t *gtest.T) {
 		err := gerror.New("1")
 		err = gerror.Wrap(err, "2")
@@ -42,6 +41,12 @@ func Test_Wrap(t *testing.T) {
 		t.AssertNE(err, nil)
 		t.Assert(err.Error(), "3: 2: 1")
 	})
+	gtest.C(t, func(t *gtest.T) {
+		err := gerror.New("1")
+		err = gerror.Wrap(err, "")
+		t.AssertNE(err, nil)
+		t.Assert(err.Error(), "1")
+	})
 }
 
 func Test_Cause(t *testing.T) {
@@ -155,3 +160,45 @@ func Test_Next(t *testing.T) {
 		t.Assert(err, nil)
 	})
 }
+
+func Test_Code(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		err := errors.New("123")
+		t.Assert(gerror.Code(err), -1)
+		t.Assert(err.Error(), "123")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		err := gerror.NewCode(1, "123")
+		t.Assert(gerror.Code(err), 1)
+		t.Assert(err.Error(), "123")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		err := gerror.NewCodef(1, "%s", "123")
+		t.Assert(gerror.Code(err), 1)
+		t.Assert(err.Error(), "123")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		err := gerror.NewCodeSkip(1, 0, "123")
+		t.Assert(gerror.Code(err), 1)
+		t.Assert(err.Error(), "123")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		err := gerror.NewCodeSkipf(1, 0, "%s", "123")
+		t.Assert(gerror.Code(err), 1)
+		t.Assert(err.Error(), "123")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		err := errors.New("1")
+		err = gerror.Wrap(err, "2")
+		err = gerror.WrapCode(1, err, "3")
+		t.Assert(gerror.Code(err), 1)
+		t.Assert(err.Error(), "3: 2: 1")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		err := errors.New("1")
+		err = gerror.Wrap(err, "2")
+		err = gerror.WrapCodef(1, err, "%s", "3")
+		t.Assert(gerror.Code(err), 1)
+		t.Assert(err.Error(), "3: 2: 1")
+	})
+}

frame/gins/gins_database.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -18,18 +18,18 @@ import (
 )
 
 const (
-	gFRAME_CORE_COMPONENT_NAME_DATABASE = "gf.core.component.database"
-	gDATABASE_NODE_NAME                 = "database"
+	frameCoreComponentNameDatabase = "gf.core.component.database"
+	configNodeNameDatabase         = "database"
 )
 
 // Database returns an instance of database ORM object
 // with specified configuration group name.
 func Database(name ...string) gdb.DB {
-	group := gdb.DEFAULT_GROUP_NAME
+	group := gdb.DefaultGroupName
 	if len(name) > 0 && name[0] != "" {
 		group = name[0]
 	}
-	instanceKey := fmt.Sprintf("%s.%s", gFRAME_CORE_COMPONENT_NAME_DATABASE, group)
+	instanceKey := fmt.Sprintf("%s.%s", frameCoreComponentNameDatabase, group)
 	db := instances.GetOrSetFuncLock(instanceKey, func() interface{} {
 		var (
 			configMap     map[string]interface{}
@@ -37,14 +37,17 @@ func Database(name ...string) gdb.DB {
 		)
 		// It firstly searches the configuration of the instance name.
 		if Config().Available() {
-			configNodeKey, _ = gutil.MapPossibleItemByKey(Config().GetMap("."), gDATABASE_NODE_NAME)
+			configNodeKey, _ = gutil.MapPossibleItemByKey(
+				Config().GetMap("."),
+				configNodeNameDatabase,
+			)
 			if configNodeKey == "" {
-				configNodeKey = gDATABASE_NODE_NAME
+				configNodeKey = configNodeNameDatabase
 			}
 			configMap = Config().GetMap(configNodeKey)
 		}
 		if len(configMap) == 0 && !gdb.IsConfigured() {
-			panic(fmt.Sprintf(`database init failed: "%s" node not found, is config file or configuration missing?`, gDATABASE_NODE_NAME))
+			panic(fmt.Sprintf(`database init failed: "%s" node not found, is config file or configuration missing?`, configNodeNameDatabase))
 		}
 		if len(configMap) == 0 {
 			configMap = make(map[string]interface{})
@@ -84,11 +87,11 @@ func Database(name ...string) gdb.DB {
 
 			if len(cg) > 0 {
 				if gdb.GetConfig(group) == nil {
-					intlog.Printf("add configuration for group: %s, %#v", gdb.DEFAULT_GROUP_NAME, cg)
-					gdb.SetConfigGroup(gdb.DEFAULT_GROUP_NAME, cg)
+					intlog.Printf("add configuration for group: %s, %#v", gdb.DefaultGroupName, cg)
+					gdb.SetConfigGroup(gdb.DefaultGroupName, cg)
 				} else {
-					intlog.Printf("ignore configuration as it already exists for group: %s, %#v", gdb.DEFAULT_GROUP_NAME, cg)
-					intlog.Printf("%s, %#v", gdb.DEFAULT_GROUP_NAME, cg)
+					intlog.Printf("ignore configuration as it already exists for group: %s, %#v", gdb.DefaultGroupName, cg)
+					intlog.Printf("%s, %#v", gdb.DefaultGroupName, cg)
 				}
 			}
 		}
@@ -97,7 +100,7 @@ func Database(name ...string) gdb.DB {
 			if Config().Available() {
 				// Initialize logger for ORM.
 				var loggerConfigMap map[string]interface{}
-				loggerConfigMap = Config().GetMap(fmt.Sprintf("%s.%s", configNodeKey, gLOGGER_NODE_NAME))
+				loggerConfigMap = Config().GetMap(fmt.Sprintf("%s.%s", configNodeKey, configNodeNameLogger))
 				if len(loggerConfigMap) == 0 {
 					loggerConfigMap = Config().GetMap(configNodeKey)
 				}

frame/gins/gins_log.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,26 +13,26 @@ import (
 )
 
 const (
-	gFRAME_CORE_COMPONENT_NAME_LOGGER = "gf.core.component.logger"
-	gLOGGER_NODE_NAME                 = "logger"
+	frameCoreComponentNameLogger = "gf.core.component.logger"
+	configNodeNameLogger         = "logger"
 )
 
 // Log returns an instance of glog.Logger.
 // The parameter <name> is the name for the instance.
 func Log(name ...string) *glog.Logger {
-	instanceName := glog.DEFAULT_NAME
+	instanceName := glog.DefaultName
 	if len(name) > 0 && name[0] != "" {
 		instanceName = name[0]
 	}
-	instanceKey := fmt.Sprintf("%s.%s", gFRAME_CORE_COMPONENT_NAME_LOGGER, instanceName)
+	instanceKey := fmt.Sprintf("%s.%s", frameCoreComponentNameLogger, instanceName)
 	return instances.GetOrSetFuncLock(instanceKey, func() interface{} {
 		logger := glog.Instance(instanceName)
 		// To avoid file no found error while it's not necessary.
 		if Config().Available() {
 			var m map[string]interface{}
-			nodeKey, _ := gutil.MapPossibleItemByKey(Config().GetMap("."), gLOGGER_NODE_NAME)
+			nodeKey, _ := gutil.MapPossibleItemByKey(Config().GetMap("."), configNodeNameLogger)
 			if nodeKey == "" {
-				nodeKey = gLOGGER_NODE_NAME
+				nodeKey = configNodeNameLogger
 			}
 			m = Config().GetMap(fmt.Sprintf(`%s.%s`, nodeKey, instanceName))
 			if len(m) == 0 {

frame/gins/gins_redis.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -14,18 +14,18 @@ import (
 )
 
 const (
-	gFRAME_CORE_COMPONENT_NAME_REDIS = "gf.core.component.redis"
-	gREDIS_NODE_NAME                 = "redis"
+	frameCoreComponentNameRedis = "gf.core.component.redis"
+	configNodeNameRedis         = "redis"
 )
 
 // Redis returns an instance of redis client with specified configuration group name.
 func Redis(name ...string) *gredis.Redis {
 	config := Config()
-	group := gredis.DEFAULT_GROUP_NAME
+	group := gredis.DefaultGroupName
 	if len(name) > 0 && name[0] != "" {
 		group = name[0]
 	}
-	instanceKey := fmt.Sprintf("%s.%s", gFRAME_CORE_COMPONENT_NAME_REDIS, group)
+	instanceKey := fmt.Sprintf("%s.%s", frameCoreComponentNameRedis, group)
 	result := instances.GetOrSetFuncLock(instanceKey, func() interface{} {
 		// If already configured, it returns the redis instance.
 		if _, ok := gredis.GetConfig(group); ok {
@@ -33,7 +33,7 @@ func Redis(name ...string) *gredis.Redis {
 		}
 		// Or else, it parses the default configuration file and returns a new redis instance.
 		var m map[string]interface{}
-		if _, v := gutil.MapPossibleItemByKey(Config().GetMap("."), gREDIS_NODE_NAME); v != nil {
+		if _, v := gutil.MapPossibleItemByKey(Config().GetMap("."), configNodeNameRedis); v != nil {
 			m = gconv.Map(v)
 		}
 		if len(m) > 0 {

frame/gins/gins_server.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,21 +13,21 @@ import (
 )
 
 const (
-	gFRAME_CORE_COMPONENT_NAME_SERVER = "gf.core.component.server"
-	gSERVER_NODE_NAME                 = "server"
+	frameCoreComponentNameServer = "gf.core.component.server"
+	configNodeNameServer         = "server"
 )
 
 // Server returns an instance of http server with specified name.
 func Server(name ...interface{}) *ghttp.Server {
-	instanceKey := fmt.Sprintf("%s.%v", gFRAME_CORE_COMPONENT_NAME_SERVER, name)
+	instanceKey := fmt.Sprintf("%s.%v", frameCoreComponentNameServer, name)
 	return instances.GetOrSetFuncLock(instanceKey, func() interface{} {
 		s := ghttp.GetServer(name...)
 		// To avoid file no found error while it's not necessary.
 		if Config().Available() {
 			var m map[string]interface{}
-			nodeKey, _ := gutil.MapPossibleItemByKey(Config().GetMap("."), gSERVER_NODE_NAME)
+			nodeKey, _ := gutil.MapPossibleItemByKey(Config().GetMap("."), configNodeNameServer)
 			if nodeKey == "" {
-				nodeKey = gSERVER_NODE_NAME
+				nodeKey = configNodeNameServer
 			}
 			m = Config().GetMap(fmt.Sprintf(`%s.%s`, nodeKey, s.GetName()))
 			if len(m) == 0 {

frame/gins/gins_view.go

@@ -1,4 +1,4 @@
-// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+// Copyright GoFrame Author(https://github.com/gogf/gf). All Rights Reserved.
 //
 // This Source Code Form is subject to the terms of the MIT License.
 // If a copy of the MIT was not distributed with this file,
@@ -13,25 +13,25 @@ import (
 )
 
 const (
-	gFRAME_CORE_COMPONENT_NAME_VIEWER = "gf.core.component.viewer"
-	gVIEWER_NODE_NAME                 = "viewer"
+	frameCoreComponentNameViewer = "gf.core.component.viewer"
+	configNodeNameViewer         = "viewer"
 )
 
 // View returns an instance of View with default settings.
 // The parameter <name> is the name for the instance.
 func View(name ...string) *gview.View {
-	instanceName := gview.DEFAULT_NAME
+	instanceName := gview.DefaultName
 	if len(name) > 0 && name[0] != "" {
 		instanceName = name[0]
 	}
-	instanceKey := fmt.Sprintf("%s.%s", gFRAME_CORE_COMPONENT_NAME_VIEWER, instanceName)
+	instanceKey := fmt.Sprintf("%s.%s", frameCoreComponentNameViewer, instanceName)
 	return instances.GetOrSetFuncLock(instanceKey, func() interface{} {
 		return getViewInstance(instanceName)
 	}).(*gview.View)
 }
 
 func getViewInstance(name ...string) *gview.View {
-	instanceName := gview.DEFAULT_NAME
+	instanceName := gview.DefaultName
 	if len(name) > 0 && name[0] != "" {
 		instanceName = name[0]
 	}
@@ -39,9 +39,9 @@ func getViewInstance(name ...string) *gview.View {
 	// To avoid file no found error while it's not necessary.
 	if Config().Available() {
 		var m map[string]interface{}
-		nodeKey, _ := gutil.MapPossibleItemByKey(Config().GetMap("."), gVIEWER_NODE_NAME)
+		nodeKey, _ := gutil.MapPossibleItemByKey(Config().GetMap("."), configNodeNameViewer)
 		if nodeKey == "" {
-			nodeKey = gVIEWER_NODE_NAME
+			nodeKey = configNodeNameViewer
 		}
 		m = Config().GetMap(fmt.Sprintf(`%s.%s`, nodeKey, instanceName))
 		if len(m) == 0 {