Merge branch 'master' of https://github.com/gogf/gf

Update garray_sorted_str.go

.example/database/gdb/mssql/gdb_sqlserver.go

@@ -512,16 +512,6 @@ func mapToStruct() {
 	}
 }
 
-// getQueriedSqls
-func getQueriedSqls() {
-	for k, v := range db.GetQueriedSqls() {
-		fmt.Println(k, ":")
-		fmt.Println("Sql  :", v.Sql)
-		fmt.Println("Args :", v.Args)
-		fmt.Println("Error:", v.Error)
-	}
-}
-
 func main() {
 
 	db.PingMaster()

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

@@ -1,10 +1,15 @@
 
-# MySQL数据库配置
+# MySQL.
 [database]
 	debug   = true
     link    = "mysql:root:12345678@tcp(127.0.0.1:3306)/test?parseTime=true&loc=Local"
     MaxOpen = 100
 
+# Redis.
+[redis]
+    default = "127.0.0.1:6379,0"
+    cache   = "127.0.0.1:6379,1"
+
 #[database]
 #   [[database.default]]
 #        type = "mysql"

.example/database/gdb/mysql/gdb_all.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-
 	"github.com/gogf/gf/frame/g"
 )
 
@@ -11,11 +10,19 @@ func main() {
 	// 开启调试模式，以便于记录所有执行的SQL
 	db.SetDebug(true)
 
-	r, e := db.Table("test").Order("id asc").All()
+	r, e := db.GetAll("SELECT * from `user` where id in(?)", g.Slice{})
 	if e != nil {
 		fmt.Println(e)
 	}
 	if r != nil {
-		fmt.Println(r.List())
+		fmt.Println(r)
 	}
+	return
+	//r, e := db.Table("user").Where("id in(?)", g.Slice{}).All()
+	//if e != nil {
+	//	fmt.Println(e)
+	//}
+	//if r != nil {
+	//	fmt.Println(r.List())
+	//}
 }

.example/database/gdb/mysql/gdb_cache.go

@@ -3,6 +3,7 @@ package main
 import (
 	"github.com/gogf/gf/database/gdb"
 	"github.com/gogf/gf/util/gutil"
+	"time"
 )
 
 func main() {
@@ -10,7 +11,7 @@ func main() {
 		Host:    "127.0.0.1",
 		Port:    "3306",
 		User:    "root",
-		Pass:    "123456",
+		Pass:    "12345678",
 		Name:    "test",
 		Type:    "mysql",
 		Role:    "master",
@@ -20,19 +21,20 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
+	//db.GetCache().SetAdapter(adapter.NewRedis(g.Redis()))
 	// 开启调试模式，以便于记录所有执行的SQL
 	db.SetDebug(true)
 
 	// 执行2次查询并将查询结果缓存3秒，并可执行缓存名称(可选)
-	for i := 0; i < 2; i++ {
-		r, _ := db.Table("user").Cache(3, "vip-user").Where("uid=?", 1).One()
-		gutil.Dump(r.ToMap())
+	for i := 0; i < 3; i++ {
+		r, _ := db.Table("user").Cache(3000*time.Second).Where("id=?", 1).One()
+		gutil.Dump(r.Map())
 	}
 
 	// 执行更新操作，并清理指定名称的查询缓存
-	db.Table("user").Cache(-1, "vip-user").Data(gdb.Map{"name": "smith"}).Where("uid=?", 1).Update()
+	//db.Table("user").Cache(-1, "vip-user").Data(gdb.Map{"name": "smith"}).Where("id=?", 1).Update()
 
 	// 再次执行查询，启用查询缓存特性
-	r, _ := db.Table("user").Cache(3, "vip-user").Where("uid=?", 1).One()
-	gutil.Dump(r.ToMap())
+	//r, _ := db.Table("user").Cache(300000*time.Second, "vip-user").Where("id=?", 1).One()
+	//gutil.Dump(r.Map())
 }

.example/database/gdb/mysql/gdb_pool.go

@@ -8,9 +8,6 @@ import (
 
 func main() {
 	db := g.DB()
-	db.SetMaxIdleConnCount(10)
-	db.SetMaxOpenConnCount(10)
-	db.SetMaxConnLifetime(time.Minute)
 
 	// 开启调试模式，以便于记录所有执行的SQL
 	db.SetDebug(true)
@@ -19,7 +16,7 @@ func main() {
 		for i := 0; i < 10; i++ {
 			go db.Table("user").All()
 		}
-		time.Sleep(time.Second)
+		time.Sleep(time.Millisecond * 100)
 	}
 
 }

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

@@ -8,5 +8,5 @@ func main() {
 	db := g.DB()
 	db.SetDebug(true)
 
-	db.Table("user").Fields("DISTINCT id,nickname").Filter().All()
+	db.Table("user").Data("num=num+1").Where("id", 8).Update()
 }

.example/database/gdb/oracle/gdb.go

@@ -513,16 +513,6 @@ func mapToStruct() {
 	}
 }
 
-// getQueriedSqls
-func getQueriedSqls() {
-	for k, v := range db.GetQueriedSqls() {
-		fmt.Println(k, ":")
-		fmt.Println("Sql  :", v.Sql)
-		fmt.Println("Args :", v.Args)
-		fmt.Println("Error:", v.Error)
-	}
-}
-
 func main() {
 
 	db.PingMaster()

.example/i18n/gi18n/gi18n.go

@@ -2,25 +2,14 @@ package main
 
 import (
 	"fmt"
-
-	"github.com/gogf/gf/i18n/gi18n"
+	"github.com/gogf/gf/frame/g"
 )
 
 func main() {
-	t := gi18n.New()
-	t.SetPath("/Users/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/.example/i18n/gi18n/i18n")
-	t.SetLanguage("en")
-	fmt.Println(t.Translate(`hello`))
-	fmt.Println(t.Translate(`{#hello}{#world}!`))
-
-	t.SetLanguage("ja")
-	fmt.Println(t.Translate(`hello`))
-	fmt.Println(t.Translate(`{#hello}{#world}!`))
-
-	t.SetLanguage("ru")
-	fmt.Println(t.Translate(`hello`))
-	fmt.Println(t.Translate(`{#hello}{#world}!`))
-
-	fmt.Println(t.Translate(`hello`, "zh-CN"))
-	fmt.Println(t.Translate(`{#hello}{#world}!`, "zh-CN"))
+	var (
+		orderId     = 865271654
+		orderAmount = 99.8
+	)
+	fmt.Println(g.I18n().Tfl(`en`, `{#OrderPaid}`, orderId, orderAmount))
+	fmt.Println(g.I18n().Tfl(`zh-CN`, `{#OrderPaid}`, orderId, orderAmount))
 }

.example/i18n/gi18n/i18n/en.toml

@@ -1,3 +1 @@
-
-hello = "Hello"
-world = "World"
+OrderPaid = "You have successfully complete order #%d payment, paid amount: ￥%0.2f."

.example/i18n/gi18n/i18n/zh-CN.toml

@@ -1,2 +1 @@
-hello = "你好"
-world = "世界"
+OrderPaid = "您已成功完成订单号 #%d 支付，支付金额￥%.2f。"

.example/net/ghttp/server/hello.go

@@ -3,15 +3,21 @@ package main
 import (
 	"github.com/gogf/gf/frame/g"
 	"github.com/gogf/gf/net/ghttp"
-	"github.com/gogf/gf/os/glog"
 )
 
+type GetById struct {
+	Id *g.Var `p:"id" v:"required|integer#id不能为空|id必须为整数"`
+}
+
 func main() {
 	s := g.Server()
 	s.SetIndexFolder(true)
 	s.BindHandler("/", func(r *ghttp.Request) {
-		glog.Println(r.Header)
-		r.Response.Write("hello world")
+		var idInfo *GetById
+		if err := r.Parse(&idInfo); err != nil {
+			r.Response.Write(err)
+		}
+		r.Response.Write("ok")
 	})
 	s.SetPort(8999)
 	s.Run()

.example/net/ghttp/server/pprof.go

@@ -1,12 +1,13 @@
 package main
 
 import (
+	"github.com/gogf/gf/frame/g"
 	"github.com/gogf/gf/net/ghttp"
 )
 
 func main() {
-	s := ghttp.GetServer()
-	s.EnablePProf()
+	s := g.Server()
+	s.Domain("localhost").EnablePProf()
 	s.BindHandler("/", func(r *ghttp.Request) {
 		r.Response.Writeln("哈喽世界！")
 	})

.example/net/ghttp/server/reload/admin.go

@@ -6,12 +6,8 @@ import (
 
 func main() {
 	s := g.Server()
+	s.SetConfigWithMap(g.Map{"Graceful": true})
 	s.EnableAdmin()
-	//s.BindHookHandler("/admin/*any", ghttp.HOOK_BEFORE_SERVE, func(r *ghttp.Request) {
-	//    if !r.BasicAuth("admin", "123", "") {
-	//        r.Exit()
-	//    }
-	//})
 	s.SetPort(8199)
 	s.Run()
 }

.example/os/gfcache/gfcache.go

@@ -1,29 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/gogf/gf/os/gfcache"
-	"github.com/gogf/gf/os/gfile"
-)
-
-func main() {
-	s := 0
-	r := ""
-	path := gfile.TempDir() + gfile.Separator + "temp"
-	gfile.PutContents(path, "hello")
-
-	s = gfcache.GetSize()
-	r = gfcache.GetContents(path)
-	fmt.Println(s, r)
-
-	gfile.PutContentsAppend(path, " john")
-
-	// 等待1秒以便gfsnotify回调能处理完成
-	time.Sleep(time.Second)
-
-	s = gfcache.GetSize()
-	r = gfcache.GetContents(path)
-	fmt.Println(s, r)
-}

.example/os/gview/layout/layout1/main.go

@@ -2,19 +2,18 @@ package main
 
 import (
 	"github.com/gogf/gf/frame/g"
-	"github.com/gogf/gf/frame/gmvc"
+	"github.com/gogf/gf/net/ghttp"
 )
 
-type Controller struct {
-	gmvc.Controller
-}
-
-func (c *Controller) Test() {
-	c.View.Display("layout.html")
-}
 func main() {
 	s := g.Server()
-	s.BindControllerMethod("/", new(Controller), "Test")
+	s.BindHandler("/", func(r *ghttp.Request) {
+		r.Response.WriteTpl("layout.html", g.Map{
+			"header":    "This is header",
+			"container": "This is container",
+			"footer":    "This is footer",
+		})
+	})
 	s.SetPort(8199)
 	s.Run()
 }

.example/os/gview/layout/layout1/template/container.html

@@ -1,3 +1,3 @@
 {{define "container"}}
-<h1>CONTAINER</h1>
+<h1>{{.container}}</h1>
 {{end}}

.example/os/gview/layout/layout1/template/footer.html

@@ -1,3 +1,3 @@
 {{define "footer"}}
-<h1>FOOTER</h1>
+<h1>{{.footer}}</h1>
 {{end}}

.example/os/gview/layout/layout1/template/header.html

@@ -1,3 +1,3 @@
 {{define "header"}}
-    <h1>HEADER</h1>
+    <h1>{{.header}}</h1>
 {{end}}

.example/os/gview/layout/layout1/template/layout.html

@@ -2,14 +2,14 @@
 <html>
 <head>
     <title>GoFrame Layout</title>
-    {{template "header"}}
+    {{template "header" .}}
 </head>
 <body>
     <div class="container">
-    {{template "container"}}
+    {{template "container" .}}
     </div>
     <div class="footer">
-    {{template "footer"}}
+    {{template "footer" .}}
     </div>
 </body>
 </html>

.example/os/gview/layout/layout2/main.go

@@ -9,11 +9,13 @@ func main() {
 	s := g.Server()
 	s.BindHandler("/main1", func(r *ghttp.Request) {
 		r.Response.WriteTpl("layout.html", g.Map{
+			"name":    "smith",
 			"mainTpl": "main/main1.html",
 		})
 	})
 	s.BindHandler("/main2", func(r *ghttp.Request) {
 		r.Response.WriteTpl("layout.html", g.Map{
+			"name":    "john",
 			"mainTpl": "main/main2.html",
 		})
 	})

.example/util/gutil/try_catch.go

@@ -11,7 +11,7 @@ func main() {
 		fmt.Println(1)
 		gutil.Throw("error")
 		fmt.Println(2)
-	}, func(err interface{}) {
+	}, func(err error) {
 		fmt.Println(err)
 	})
 }

.gitignore

@@ -6,7 +6,7 @@
 .idea/
 .settings/
 .vscode/
-vender/
+vendor/
 composer.lock
 gitpush.sh
 pkg/
@@ -15,4 +15,4 @@ cbuild
 **/.DS_Store
 .vscode/
 go.sum
-.example/other/
+.example/other/

.travis.yml

@@ -5,6 +5,7 @@ go:
   - "1.12.x"
   - "1.13.x"
   - "1.14.x"
+  - "1.15.x"
 
 branches:
   only:

DONATOR.MD

@@ -1,13 +1,17 @@
 # Donators
 
-We currently accept donation by Alipay/WechatPay, please note your github/gitee account in your payment bill.
+We currently accept donation by [Wechat](https://goframe.org/images/donate.png) / [Alipay](https://goframe.org/images/donate.png) / [Gitee](https://gitee.com/johng/gf), 
+please note your github/gitee account in your payment bill. All the donations will be used only for `GoFrame` project development and its community construction. 
+
+> If you cannot see the donation image, please click [here](https://goframe.org/images/donate.png).
+
+<img src="https://goframe.org/images/donate.png?20200718"/>
 
-> If you cannot view the donation image, please click [here](https://goframe.org/images/donate.png).
 
 | Name | Channel | Amount | Comment 
 |---|---|--- | ---
 |[hailaz](https://gitee.com/hailaz)|gitee|￥20.00 | 
-|[ireadx](https://github.com/ireadx)|alipay|￥301.00 |
+|[ireadx](https://github.com/ireadx)|alipay|￥501.00 |
 |[mg91](https://gitee.com/mg91)|gitee|￥10.00 |
 |[pibigstar](https://github.com/pibigstar)|alipay|￥10.00 |
 |[tiangenglan](https://gitee.com/tiangenglan)|gitee|￥30.00 |
@@ -46,7 +50,7 @@ We currently accept donation by Alipay/WechatPay, please note your github/gitee
 |struggler|alipay|￥18.80| 
 |*铁|wechat|￥0.01| 
 |C*e|wechat|￥66.66| GF越来越好，棒👍！
-|(佚名)|wechat|￥6.66| (名字打不出来，也没备注，捐赠时间2020-02-21 14:24:34)
+|---P คิดถึง|wechat|￥6.66| 
 |[王飞](https://gitee.com/wang_2018)|gitee|￥20.00| 感谢您的开源项目！
 |[Zeroing-ZY](https://gitee.com/yunjieg)|gitee|￥20.00| 感谢您的开源项目！
 |[katydid酱](https://gitee.com/katydid2005)|gitee|￥50.00| 感谢您的开源项目！框架给予了很大的帮助！谢谢大佬！
@@ -84,13 +88,60 @@ We currently accept donation by Alipay/WechatPay, please note your github/gitee
 |千年|wechat|￥1.08| 
 |[szzxing](https://github.com/szzxing)|wechat|￥50.00| 
 |伟客互联|wechat|￥66.66| 
-|sbilly|wechat|￥99.00| 
+|[sbilly](https://github.com/sbilly)|wechat|￥99.00| 
 |**阳|alipay|￥100.01| 
 |**亮|alipay|￥10.00| 
 |[mingzaily](https://github.com/mingzaily)|alipay|￥30.00| 
 |[seny0929](https://gitee.com/seny0929)|alipay|￥9.90| 
 |Fly的狐狸|alipay|￥100.00| 
+|六七     ·|wechat|￥88.88| gf越来越好
+|Tom|wechat|￥500.00| 一点心意  希望GF越来越好
+|Chao|wechat|￥166.00| 
+|汤sir|wechat|￥10.00| 强哥，喝杯咖啡☕️
+|秋叶、|wechat|￥66.66| GF带我一起玩
+||wechat|￥20.00| 
+|程凤明|wechat|￥18.80|
+|Glowworm|wechat|￥8.88| 感谢大佬
+|徒行|wechat|￥10.00| 目前项目在转用这个框架，鼓励一下大佬吧👍👍👍
+|产品设计.软件开发|wechat|￥10.00| 祝愿走向更成功！
+|[charlieccGuo](https://github.com/charlieccGuo)|wechat|￥10.00| 
+|yiran|wechat|￥20.00| 赏给大佬喝茶🍵
+|长夏朔酒|wechat|￥20.00| 请大佬喝茶
+|💥聪จุ๊บ 🇨🇳|wechat|￥66.66| 请大佬喝茶
+|Even_|wechat|￥10.00| 日照市民发来贺电！
+|智慧人生|wechat|￥50.00| 智慧人生
+|一滴水|wechat|￥10.00| goframe 越来越强大
+|[wenzi1](https://github.com/wenzi1)|alipay|￥100.00| 
+|[hyuant](https://github.com/hyuant)|alipay|￥66.66| 
+|*庆|alipay|￥9.99| 支持一下，gf越来越好
+|**君|alipay|￥10.00| 加油
+|向回走的闹钟|wechat|￥20.00| 越来越好
+|金毛|wechat|￥100.00| 
+|莫失莫忘|wechat|￥100.00| 
+|**航|alipay|￥20.00| 
+|阿康|wechat|￥100.00| 
+|Tzp|wechat|￥10.00| 
+|[hkxiaoyu118](https://github.com/hkxiaoyu118)|wechat|￥10.00| 
+|辰|wechat|￥50.00| 
+|LSJ|wechat|￥66.66|我想我是海：祝gf越来越好，统治后端 
+|yu|wechat|￥100.00|感谢开源，加油！我是QQ群里的lah
+|雁字回时月满楼|wechat|￥20.00|感谢gf
+|Panda|wechat|￥20.00|支持一下！gf很棒👍
+|[Thunur](https://gitee.com/thunur)|wechat|￥100.00|
+|[Mr.奇淼](https://www.gin-vue-admin.com/)|wechat|￥18.88|强哥无敌，奇淼爱你
+|[SliverHorn](hhttps://github.com/sliverhorn)|wechat|￥17.77|强哥无敌，SliverHorn爱你
+|[fly的狐狸](https://github.com/zcool321)|wechat|￥50.00|
+|北漂生活|wechat|￥66.66|gf大展鸿图
+|YJ|wechat|￥10.00|YangJ-Eric祝愿越来越好
+|秋葵|wechat|￥20.00|之前强哥
+|陈诚|wechat|￥100.00|Loocor恭喜郭总发版🎉
+|**栋|alipay|￥100.00|
+|**浩|alipay|￥100.00|
+|RAGGA-TIME|alipay|￥50.00|
+|[ChArmy](https://gitee.com/charmy)|alipay|￥50.00|
+|[sanfenzui](https://gitee.com/sanfenzui)|alipay|￥88.00|
+
+
 
 
-<img src="https://goframe.org/images/donate.png"/>
 

README.MD

@@ -31,6 +31,11 @@ require github.com/gogf/gf latest
 golang version >= 1.11
 ```
 
+# Architecture
+<div align=center>
+<img src="https://goframe.org/images/arch.png?v=12"/>
+</div>
+
 # Packages
 1. **Primary Package**
 
@@ -40,11 +45,6 @@ golang version >= 1.11
 
     The community packages are contributed and maintained by community members, which are hosted in `gogf` organization. Some of the community packages are separated from the `gf` repository, which are not of common usage or are with heavy dependencies. 
 
-# Architecture
-<div align=center>
-<img src="https://goframe.org/images/arch.png?v=11"/>
-</div>
-
 # Performance
 
 Here's the most popular Golang frameworks and libraries performance testing result in `WEB Server`. Performance testing cases source codes are hosted at: https://github.com/gogf/gf-performance
@@ -115,9 +115,18 @@ The concurrency starts from `100` to `10000`.
 
 `GF` is licensed under the [MIT License](LICENSE), 100% free and open-source, forever.
 
-# Known Users
+# Part Of Users
 
-Logos are not authorized to be shown due to trademark copyrights.
+- [Tencent](https://www.tencent.com/)
+- [ZTE](https://www.zte.com.cn/china/)
+- [Ant Financial Services](https://www.antfin.com/)
+- [MedLinker](https://www.medlinker.com/)
+- [KuCoin](https://www.kucoin.io/)
+- [LeYouJia](https://www.leyoujia.com/)
+- [IGG](https://igg.com)
+- [XiMaLaYa](https://www.ximalaya.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).
 
 
 # Contributors

README_ZH.MD

@@ -45,6 +45,13 @@ require github.com/gogf/gf latest
 golang版本 >= 1.11
 ```
 
+
+
+# 架构
+<div align=center>
+<img src="https://goframe.org/images/arch.png?v=12"/>
+</div>
+
 # 模块
 
 1. **核心模块**
@@ -56,11 +63,6 @@ golang版本 >= 1.11
     社区模块主要由社区贡献并维护，大部分也是由`gf`主仓库的贡献者提供及维护，存放于`gogf`空间下，与`gf`主仓库处于同一级别。有的社区模块是从`gf`主仓库中剥离出来单独维护的模块，这些模块并不是特别常用，或者对外部依赖较重。
 
 
-# 架构
-<div align=center>
-<img src="https://goframe.org/images/arch.png?v=11"/>
-</div>
-
 # 性能
 
 以下是目前最流行的`WEB Server` Golang框架/类库性能测试结果。
@@ -135,7 +137,16 @@ ab -t 10 -c 100 http://127.0.0.1:3000/json
 
 # 用户
 
-由于商标版权缘故，未经厂商商务部授权允许无法用于宣传展示。
+- [腾讯科技](https://www.tencent.com/)
+- [中兴科技](https://www.zte.com.cn/china/)
+- [蚂蚁金服](https://www.antfin.com/)
+- [医联科技](https://www.medlinker.com/)
+- [库币科技](https://www.kucoin.io/)
+- [乐有家](https://www.leyoujia.com/)
+- [IGG](https://igg.com)
+- [喜马拉雅](https://www.ximalaya.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。
 
 # 贡献
 

RELEASE.2.MD

@@ -1,3 +1,387 @@
+# `v1.14.2` (2020-10-27)
+
+# GoFrame
+
+`GF(Go Frame)`是一款模块化、高性能、生产级的Go基础开发框架。实现了比较完善的基础设施建设以及开发工具链，提供了常用的基础开发模块，如：缓存、日志、队列、数组、集合、容器、定时器、命令行、内存锁、对象池、配置管理、资源管理、数据校验、数据编码、定时任务、数据库ORM、TCP/UDP组件、进程管理/通信等等。并提供了Web服务开发的系列核心组件，如：`Router`、`Cookie`、`Session`、`Middleware`、服务注册、模板引擎等等，支持热重启、热更新、域名绑定、`TLS/HTTPS`、`Rewrite`等特性。
+
+## 特点
+
+* 模块化、松耦合设计；
+* 模块丰富、开箱即用；
+* 简便易用、易于维护；
+* 高代码质量、高单元测试覆盖率；
+* 社区活跃，大牛谦逊低调脾气好；
+* 详尽的开发文档及示例；
+* 完善的本地中文化支持；
+* 设计为团队及企业使用；
+
+## 支持我们
+
+OSC最佳开源项目评选开始了，如果您喜欢`GoFrame`，欢迎为`GoFrame`投上您宝贵的一票🙏 https://www.oschina.net/p/goframe
+
+
+# Change Log
+
+由于`GoFrame`是模块化设计，因此每个版本的更新记录都会以模块的形式进行介绍。
+
+重要更新：
+1. 将框架内所有的`json`操作从标准库替换为`json-iterator/go`，提高操作效率。
+1. 缓存模块重构底层设计，增加适配器设计模式，并增加内存及`Redis`适配器支持。其中内存适配器默认核心模块提供，`Redis`适配器由社区模块提供：https://goframe.org/os/gcache/adapter
+1. 增加可自定义的校验规则注册特性：https://goframe.org/util/gvalid/customrule
+1. `Web Server`增加所有配置项示例：https://goframe.org/net/ghttp/config/example
+1. `ORM`新增基于`Redis`的`SQL`缓存适配器：https://goframe.org/database/gdb/model/cache
+1. `ORM`新增模型关联实验特性：https://goframe.org/database/gdb/model/association
+1. `ORM`改进时间自动更新特性增加自定义时间字段：https://goframe.org/database/gdb/model/auto-time
+1. 错误处理模块新增`Current`及`Next`方法：https://goframe.org/errors/gerror/index
+
+
+
+## `net`
+1. `ghttp`
+    - `Client`
+        - 增加`GetVar/PutVar/PostVar`等`*Var`请求方法，用于发起`HTTP`请求获取内容之后直接返回泛型对象，方便类型转换，特别是针对于返回`XML/JSON`的结果处理将会更加简便：https://goframe.org/net/ghttp/client/demo/index
+        - 增加`SetProxy/Proxy`方法，用于设置客户端代理，支持`HTTP/Socket5`代理类型：https://goframe.org/net/ghttp/client/demo/proxy
+        - 增加`SetRedirectLimit/RedirectLimit`方法，用于设置页面跳转数量限制。
+    - `Request`
+        - 增加`ParseQuery`, `ParseForm`方法，用于解析指定类型的参数，并绑定到给定的对象。
+        - 增加`GetHeader`方法，用于获取指定`Header`参数。
+        - 增加`GetRemoteIp`方法，用于获取请求客户端IP。在IP白名单限制时应当使用`GetRemoteIp`而不是`GetClientIp`进行判断，后者可以通过`Header`伪造。
+        - 增加`ReloadParam`方法，往往用在中间件处理中，当中间件修改了请求参数，需要通过调用该方法重新解析一下请求参数。
+        - 增加`GetRouterMap`方法，用于获得所有的路由参数返回为`map`。
+    - `Response`
+        - 将`Output`方法名称改为`Flush`，用于将缓冲区的数据写入到客户端数据流中。
+    - `Server`
+        - `Server`增加所有配置项示例：https://goframe.org/net/ghttp/config/example
+        - 增加`SessionCookieOutput`配置，用于控制是否输出`SessionId`到`Cookie`中，默认为开启。
+        - 改进路由解析，增加对`URI`带有重复的`/`符号的支持。
+        - `Pprof`功能路由支持`Domain`绑定。
+        - 其他一些细节改进。
+    - `Cookie`
+        - 增加`SetHttpCookie`方法，用于根据标准库`http.Cookie`对象设置`Cookie`。
+        - 其他一些功能改进
+    
+
+## `database`
+1. `gdb`
+    - 新增模型关联实验特性：https://goframe.org/database/gdb/model/association
+    - 改进时间自动更新特性增加自定义时间字段：https://goframe.org/database/gdb/model/auto-time
+    - 新增基于`Redis`的`SQL`缓存适配器：https://goframe.org/database/gdb/model/cache
+    - 新增对输入参数的键名-字段名自动识别映射特性：https://goframe.org/database/gdb/senior
+    - 新增`DB.HasTable`方法，用于判断是否当前数据库存在指定数据表。
+    - 新增`Model.HasField`方法，用于判断是否当前数据表存在指定字段。
+    - 新增`Model.ScanList`方法，用于智能地将当前`struct`/`slice`绑定到指定的`list`对应属性上。
+    - 新增`Result.MapKeyValue`方法，用于将当前`Result`转换为`map[string]Value`类型。
+    - 新增`Result.IsEmpty/Len/Size/ScanList`方法。
+    - 增加`ListItemValues`及`ListItemValuesUnique`方法，用于自动获取`list`中指定名称的键值或属性值，构成`slice`返回。
+    - `SQL`日志内容增加分组名称打印。
+    - 改进`DataToMapDeep`方法。
+    - 其他一些细节改进工作。
+    
+1. `gredis`
+    - 新增`TLS`特性支持，并支持配置文件配置，https://goframe.org/database/gredis/config
+
+## `container`
+1. `gvar`
+    - 增加`Scan`及`ScanDeep`方法，用于`struct`/`slice`自动识别转换。
+    - 增加`ListItemValues`及`ListItemValuesUnique`方法，用于自动获取`list`中指定名称的键值或属性值，构成`slice`返回。
+    - 增加`MapStrAny`接口实现方法。
+
+## `os`
+1. `gcache`
+    - 增加`GetVar`方法，用于获取缓存数据并返回为泛型对象。
+    - 增加`Update`方法，用于仅修改缓存数值，不修改缓存过期时间。
+    - 增加`UpdateExpire`方法，用于仅修改缓存过期时间，不修改缓存数值。
+    - 重构底层设计，增加适配器设计模式，并增加内存及`Redis`适配器支持。其中内存适配器默认核心模块提供，`Redis`适配器由社区模块提供：https://goframe.org/os/gcache/adapter
+    - 注意，本次模块的修改会有部分方法不兼容，部分方法增加了`error`参数返回，升级时请注意查看。编译时将不会通过。
+    - 其他一些功能改进。
+1. `gfile`
+    - 增加`ScanDirFileFunc`方法，用于自定义函数处理的递归目录文件遍历。
+    - 改进`Scan*`方法，增加递归层级限制，默认层级限制为`100000`.
+
+1. `gfsnotify`
+    - 去掉模块初始化时的`Watcher`对象创建，调整为运行时按需创建，并且增加了并发安全控制。
+
+1. `grpool`
+    - 增加`AddWithRecover`方法，用于添加异步任务时给定一个`recover`处理方法，当任务`panic`时交由该`recover`方法处理，防止异步任务`panic`引起整个进程崩溃。
+    > 这里解决的痛点是`recover`只能捕获到当前`goroutine`的`panic`，因此只能在创建异步任务的时候指定`recover`处理方法。
+
+1. `gtime`
+    - 增加`ParseDuration`方法，增加了对时间单位`d`的支持，表示天。
+    - 改进`New`方法，支持通过字符串、时间戳、`time.Time`对象创建`gtime.Time`对象，https://goframe.org/os/gtime/time
+    - 改进`Add/AddStr/ToLocation/ToZone/UTCLocal/AddDate/Truncate/Round`方法，这些方法调用时，不再修改当前对象本身，而是创建并返回一个新的`gtine.Time`对象，以便保证和标准库`time.Time`的逻辑一致，防止混淆。
+    - 其他一些细节改进。
+1. `gtimer`
+    - 增加`Reset`方法，用于重置定时任务的计时。
+1. `gfcache`
+    - 去掉了该模块，该模块的功能作用不是特别大。
+
+## `debug`
+1. `gdebug`
+    - 新增`GoroutineId`方法，用于获取当前执行的`goroutine id`，仅作调试使用。
+
+## `encoding`
+1. `gjson`
+    - 新增`GetScan/GetScanDeep`方法。
+    - 新增`ToScan/ToScanDeep`方法。
+    - 新增`LoadContentType`方法，用于根据指定类型的内容创建`Json`操作对象。
+    - 新增`IsValidDataType`方法，用于判断给定的数据类型是否支持解析。
+    - 其他一些改进。
+    - 单元测试完善。
+
+1. `gcompress`
+    - 新增`GzipFile/UnGzipFile`基于`gzip`压缩算法的文件压缩/解压。
+
+## `i18n`
+1. `gi18n`
+    - 新增`TranslateFormat/TranslateFormatLang/Tf/Tfl`方法: https://goframe.org/i18n/gi18n/index
+
+## `text`
+1. `gstr`
+    - 增加`SnakeFirstUpperCase`方法，用于在字母大写前增加连接符，并不会处理数字，例如：`SnakeFirstUpperCase("RGBCodeMd5")`将会返回`rgb_code_md5`。
+
+## `util`
+1. `gconv`
+    - 增加对指针基本类型的转换支持。
+    - 增加`Scan/ScanDeep`方法，用于自动识别转换`Struct/[]Struct`。
+    - 改进`MapDeep`方法的层级递归处理。
+    - 其他一些细节改进，性能改进。
+
+1. `gutil`
+    - 增加`ListItemValues`及`ListItemValuesUnique`方法，用于自动获取`list`中指定名称的键值或属性值，构成`slice`返回。
+    - 增加`ItemValue`方法，用于获取指定`map/*map/struct/*struct`类型的键值/属性值。
+    - 增加`MapOmitEmpty`方法，用于过滤`map`中的空值。
+    - 增加`SliceDelete`方法，用于数组项删除。
+    - 增加`Try`方法，通过闭包执行给定的方法，如果方法产生`panic`则该方法返回`error`，否则返回`nil`。
+    - 改进`TryCatch(try func(), catch ...func(exception interface{}))`为`TryCatch(try func(), catch ...func(exception error))`
+
+1. `gvalid`
+    - 增加自定义规则特性，开发者可注册自定义的校验规则：https://goframe.org/util/gvalid/customrule
+    - 其他一些功能改进。
+
+## `error`
+1. `gerror`
+    - 新增`Current`方法，用于获取当前错误层级的`error`接口对象。
+    - 新增`Next`方法，用于获取层级错误的下一级错误`error`接口对象。当下一层级不存在时，返回`nil`。
+    - 文档更新：https://goframe.org/errors/gerror/index
+
+## Bug Fix
+1. 修复`garray`模块的`Unique`方法问题。
+1. 修复`glog`中定时器懒初始化时的`goroutine`泄露问题。
+1. 修复`gstr`中名称`Case`转换相关方法在名称中带有数字+特殊字符时的名称转换问题。
+1. 修复`ghttp`模块中的`CORS`跨域设置`Header`细节问题。
+1. 其他BUG修复：https://github.com/gogf/gf/issues?q=is%3Aissue+label%3Abug+is%3Aclosed
+
+
+# `v1.13.1` (2020-06-10)
+
+# GoFrame
+
+`GF(Go Frame)`是一款模块化、高性能、生产级的Go基础开发框架。实现了比较完善的基础设施建设以及开发工具链，提供了常用的基础开发模块，如：缓存、日志、队列、数组、集合、容器、定时器、命令行、内存锁、对象池、配置管理、资源管理、数据校验、数据编码、定时任务、数据库ORM、TCP/UDP组件、进程管理/通信等等。并提供了Web服务开发的系列核心组件，如：Router、Cookie、Session、Middleware、服务注册、模板引擎等等，支持热重启、热更新、域名绑定、TLS/HTTPS、Rewrite等特性。
+
+## 特点
+
+* 模块化、松耦合设计；
+* 模块丰富、开箱即用；
+* 简便易用、易于维护；
+* 高代码质量、高单元测试覆盖率；
+* 社区活跃，大牛谦逊低调脾气好；
+* 详尽的开发文档及示例；
+* 完善的本地中文化支持；
+* 设计为团队及企业使用；
+
+## 发展
+
+`GoFrame`开始得比较早，`2011`年始于北京一个智能物联网平台项目，那时还没有这么多物联网的现行标准，`Go`的标准库以及生态也未如此丰富。`2017`年的时候`GF`才开始发布测试版，`2018`年`1024`程序员节日的时候才发布`v1.0`正式版，为`Go`生态发展添砖加瓦。开源以来快速迭代、发展成长，广受开发者和企业的青睐，也有许多的开发者加入了贡献行列。`GF`原本是为开发团队设计的，因此她的开发效率和可维护性做得非常好，有着很高的代码质量以及丰富的单元测试和示例，并且`GF`是目前中文化文档做的最好的`Golang`开发框架。
+
+# Change Log
+
+1. 应多数开发者的要求，框架要求的最低`Golang`运行版本降级为了`v1.11`。
+1. 新增`GoFrame`视频教程地址：
+    - bilibili：https://www.bilibili.com/video/av94410029
+    - 西瓜视频： https://www.ixigua.com/pseries/6809291194665796100/
+1. 将不常用的`guuid`模块迁移到 github.com/gogf/guuid 作为社区模块维护，保持`gf`主仓库的轻量级。
+1. 新增`guid`模块，用于高效轻量级的唯一字符串生成：https://goframe.org/util/guid/index
+
+
+## `tool chain`
+
+1. 工具链更新：https://goframe.org/toolchain/cli
+1. 新增`gf env`命令，更优雅地查看当前`Golang`环境变量信息。
+1. 新增`gf mod path`命令，用于将当前`go modules`包拷贝到`GOPATH`中，以便使用原始的`GOPATH`方式开发项目。
+1. 对现有`cli`命令进行了一些改进，提高使用体验；预编译二进制版本在部分平台下提供了`upx`压缩，使得下载的文件更小。
+
+## `container`
+1. `garray`
+    - https://goframe.org/container/garray/index
+    - 简化数组使用方式，支持类似于`var garray.Array`的变量定义使用方式；
+    - 增加`Walk`方法，用于自定义的数组元素处理方法；
+    - 增加`ContainsI`方法，用于大小写忽略匹配的数组元素项存在性查找；
+    - 完善单元测试，代码覆盖率`94%`；
+    - 代码改进，提高性能；
+    - 修复一些问题；
+1. `gchan`
+    - 由于该封装包实际意义不是很大，因此从主框架中删除；
+1. `glist`
+    - https://goframe.org/container/glist/index
+    - 简化链表使用方式，支持类似于`var glist.List`的变量定义使用方式；
+    - 完善单元测试，代码覆盖率`99%`；
+1. `gmap`
+    - https://goframe.org/container/gmap/index
+    - 简化`Map`使用方式，支持类似于`var gmap.Map`的变量定义使用方式；
+    - 完善单元测试，代码覆盖率`81%`；
+    - 代码改进，提高性能；
+1. `gset`
+    - https://goframe.org/container/gset/index
+    - 简化集合使用方式，支持类似于`var gset.Set`的变量定义使用方式；
+    - 增加`Walk`方法，用于自定义的集合元素处理方法；
+    - 完善单元测试，代码覆盖率`90%`；
+    - 代码改进，提高性能；
+1. `gtree`
+    - https://goframe.org/container/gtree/index
+    - 简化树型使用方式，支持类似于`var gtree.BTree`的变量定义使用方式；
+    - 完善单元测试，代码覆盖率`90%`；
+1. `gvar`
+    - https://goframe.org/container/gvar/index
+    - 完善单元测试，代码覆盖率`69%`；
+    - 代码组织结构调整，提高维护性；
+    - 代码改进，提高性能；
+
+## `database`
+
+1. `gdb`
+    - 增加`Transaction(f func(tx *TX) error) (err error)`接口方法，用于通过闭包实现事务封装处理：https://goframe.org/database/gdb/transaction
+    - 去掉不常用的`From`接口方法，改进`Table`及`Model`方法的参数为不定参数，并支持通过不定参数传递表别名：https://goframe.org/database/gdb/chaining/select
+    - 增加`DryRun`特性，支持空跑时只执行查询不执行写入/更新/删除操作：https://goframe.org/database/gdb/senior
+    - 增加`create_at`, `update_at`写入时间、更新时间字段自动填充特性：https://goframe.org/database/gdb/chaining/auto-time
+    - 增加`delete_at`软删除特性：https://goframe.org/database/gdb/chaining/auto-time
+    - 增加`Having`链式操作方法，用于`having`条件查询：https://goframe.org/database/gdb/chaining/select
+    - `Result`结果对象增加`Chunk`方法，用于自定义的数据分批处理：https://goframe.org/database/gdb/result
+    - 改进`Schema`数据库运行时切换特性；
+    - 改进对`pgsql`, `mssql`, `sqlite`, `oracle`数据库字段类型的支持；
+    - 进一步完善单元测试；
+    - 代码组织结构调整，提高维护性；
+    - 代码改进，提高性能；
+1. `gredis`
+    - 增加`MaxActive`连接池参数默认配置为`100`，限制默认的连接数量；
+    - 改进`Conn`连接对象的`Do`方法，支持对`map/slice/struct`类型进行自动的`json.Marshal`处理，注意获取数据时使用`DoVar`方法获取：https://goframe.org/database/gredis/usage
+    - 完善单元测试，代码覆盖率`72%`；
+
+## `net`
+1. `ghttp`
+    - 增加`Prefix`及`Retry`客户端链式操作方法；
+    - 增加客户端原始请求打印特性：https://goframe.org/net/ghttp/client/demo/dump
+    - 增加`ClientMaxBodySize`的服务端配置，用于限制客户端提交的`Body`大小，默认为`8MB`；在涉及到上传的Server中需要增加该配置的大小，在配置文件中指定对应的大小即可，如`ClientMaxBodySize="100MB"`：https://goframe.org/net/ghttp/config
+    - 改进`SessionId`生成的随机性，提高`Session`安全性：https://goframe.org/os/gsession/index
+    - 改进`ghttp.Server`实现了标准库的`http.Handler`接口，便于与其他第三方的服务如`Prometheus`进行代码集成；
+    - 其他大量的代码细节改进工作，提高性能及持久维护性；
+    - 完善单元测试，代码覆盖率`61%`；
+
+1. `gipv4`
+    - 增加`GetIpArray`方法，用于获取当前主机的所有IPv4地址；
+    - 增加`GetMacArray`及`GetMac`方法，用于获取当前主机的`MAC`地址信息；
+    - 修改`IntranetIP`方法名称为`GetIntranetIp`，修改`IntranetIPArray`方法名称为`GetIntranetIpArray`；
+
+## `encoding`
+1. `gjson`
+    - 新增`GetMaps`获取`JSON`内部节点变量方法；
+    - 改进`NewWithTag`方法对`map/struct`的处理；
+    - 完善单元测试，代码覆盖率`77%`；
+1. `gyaml`
+    - 升级依赖的第三方`yaml`解析包，解决了`map[interface{}]interface{}`转换问题；
+
+## `error`
+1. `gerror`
+    - 新增`NewfSkip`方法，用于创建`skip`指定堆栈的错误对象；
+    - 放开框架所有的堆栈链路打印，展示错误时真实的链路调用详情；
+
+## `os`
+1. `gcache`
+    - 增加`GetVar`方法，用于获得可以便捷转换为其他数据类型的"泛型"变量；
+    - 标记`Removes`方法废弃，改进`Remove`方法参数为不定参数，统一使用`Remove`方法删除单个/多个键值对；
+    - 完善单元测试，代码覆盖率`96%`；
+
+1. `genv`
+    - 增加`GetVar`方法，用于获得可以便捷转换为其他数据类型的"泛型"变量；
+
+1. `gfile`
+    - 改进`CopyDir/CopyFile`复制目录/文件方法；
+    - 新增`ScanDirFunc`方法，用于支持自定义处理回调的目录检索；
+    - 完善单元测试，代码覆盖率`64%`；
+
+1. `glog`
+    - 增加支持`Context`上下文变量的日志打印特性：https://goframe.org/os/glog/context
+
+1. `gres`
+    - 改进打包特性，增强生成二进制文件及Go文件的压缩比，比旧版本增加`20%`压缩率，使得编译生成的二进制文件体积更小；
+    - 代码结构改进，提高执行效率及可持久维护性；
+
+1. `gsession`
+    - 改进`SessionId`默认生成方法，采用`guid.S`方法生成；
+    - 增加`SetId`及`SetIdFunc`方法，用于自定义`SessionId`及自定义的`SessionId`生成方法；
+
+## `frame`
+1. `g`
+    - 新增`g.Table`方法，用于快速创建数据库模型操作对象；
+
+## `i18n`
+1. `gi18n`
+    - 新增`GetContent`方法，用于获取指定`i18n`关键字为转译内容；
+    - 改进代码细节，提高性能和持久可维护性；
+    - 完善单元测试，代码覆盖率`74%`；
+
+## `test`
+1. `gtest`
+    - 增加`AssertNQ`断言方法，用于强类型的不相等判断；
+
+## `text`
+1. `gstr`
+    - 增加`SubStrRune`方法，用于支持`unicode`的字符串截取；
+    - 增加`StrLimitRune`方法，用于支持`unicode`的字符串截断隐藏；
+    - 增加`LenRune`方法，用于替换`RuneLen`方法，统一方法命名风格；
+    - 增加`PosRune/PosIRune/PosRRune/PosRIRune`方法，用于支持`unicode`的字符串左右位置查找；
+    - 增加`CompareVersionGo`方法，用于`Golang`风格的版本号大小比较；
+    - 完善单元测试，代码覆盖率`75%`；
+
+## `util`
+1. `gconv`
+    - 改进`Convert`转换方法，支持常见`map`类型的转换；
+    - 改进类型转换过程中异常错误的捕获，通过`error`返回；
+    - 其他一些细节改进；
+    - 完善单元测试，代码覆盖率`63%`；
+
+1. `grand`
+    - 增加`B`方法，用于获得随机的二进制数据；
+    - 改进代码底层实现，部分接口性能提高`50%`；
+    - 完善单元测试，代码覆盖率`74%`；
+
+1. `guid`
+    - 新增`guid`模块，用于高效轻量级的唯一字符串生成：https://goframe.org/util/guid/index
+
+1. `gutil`
+    - 增加`MapContains`方法，用于判断map中是否包含指定键名；
+    - 增加`MapDelete`方法，用于删除map中指定的键名，可以为多个键名；
+    - 增加`MapMerge`方法，用于合并两个map；
+    - 增加`MapMergeCopy`方法，用于拷贝多个map；
+    - 增加`MapContainsPossibleKey`方法，用于查找指定键名，忽略大小写及字符`'-'/'_'/'.'/' '`；
+
+1. `gvalid`
+    - 所有默认的错误提示改为了英文；
+    - 错误提示的配置改为了通过`i18n`来配置实现，以便支持国际化：https://goframe.org/util/gvalid/message
+    - 身份证号规则名称从`id-number`改为了`resident-id `；
+    - 银行卡号规则名称从`luhn`改为了`bank-card`；
+    - 完善单元测试，代码覆盖率`96%`；
+
+## Bug Fix
+1. 修复`gcompress`的多文件`zip`压缩问题；
+1. 修复`ghttp.Client`获取返回的过期`Cookie`的问题；
+1. 修复`gres.File`对于`http.File`接口的实现细节；
+1. 修复`garray.Pop*`方法的边界问题；
+1. 修复`gres`中`Readdir`方法参数为`0`时报错的问题；
+1. 其他一些修复：https://github.com/gogf/gf/issues?q=is%3Aissue+label%3Abug
+
+
+
+
 # `v1.12.1` (2020-03-31)
 
 大家好啊！久等啦！

container/garray/garray_normal_any.go

@@ -8,10 +8,10 @@ package garray
 
 import (
 	"bytes"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"github.com/gogf/gf/internal/empty"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/text/gstr"
 	"math"
 	"sort"
@@ -494,9 +494,11 @@ func (a *Array) Search(value interface{}) int {
 func (a *Array) Unique() *Array {
 	a.mu.Lock()
 	for i := 0; i < len(a.array)-1; i++ {
-		for j := i + 1; j < len(a.array); j++ {
+		for j := i + 1; j < len(a.array); {
 			if a.array[i] == a.array[j] {
 				a.array = append(a.array[:j], a.array[j+1:]...)
+			} else {
+				j++
 			}
 		}
 	}

container/garray/garray_normal_int.go

@@ -8,9 +8,9 @@ package garray
 
 import (
 	"bytes"
-	"encoding/json"
 	"errors"
 	"fmt"
+	"github.com/gogf/gf/internal/json"
 	"math"
 	"sort"
 
@@ -510,9 +510,11 @@ func (a *IntArray) Search(value int) int {
 func (a *IntArray) Unique() *IntArray {
 	a.mu.Lock()
 	for i := 0; i < len(a.array)-1; i++ {
-		for j := i + 1; j < len(a.array); j++ {
+		for j := i + 1; j < len(a.array); {
 			if a.array[i] == a.array[j] {
 				a.array = append(a.array[:j], a.array[j+1:]...)
+			} else {
+				j++
 			}
 		}
 	}

container/garray/garray_normal_str.go

@@ -8,9 +8,9 @@ package garray
 
 import (
 	"bytes"
-	"encoding/json"
 	"errors"
 	"fmt"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/text/gstr"
 	"math"
 	"sort"
@@ -514,9 +514,11 @@ func (a *StrArray) Search(value string) int {
 func (a *StrArray) Unique() *StrArray {
 	a.mu.Lock()
 	for i := 0; i < len(a.array)-1; i++ {
-		for j := i + 1; j < len(a.array); j++ {
+		for j := i + 1; j < len(a.array); {
 			if a.array[i] == a.array[j] {
 				a.array = append(a.array[:j], a.array[j+1:]...)
+			} else {
+				j++
 			}
 		}
 	}

container/garray/garray_sorted_any.go

@@ -8,9 +8,9 @@ package garray
 
 import (
 	"bytes"
-	"encoding/json"
 	"fmt"
 	"github.com/gogf/gf/internal/empty"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/text/gstr"
 	"github.com/gogf/gf/util/gutil"
 	"math"
@@ -446,7 +446,7 @@ func (a *SortedArray) binSearch(value interface{}, lock bool) (index int, result
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = (min + max) / 2
+		mid = min + int((max-min)/2)
 		cmp = a.getComparator()(value, a.array[mid])
 		switch {
 		case cmp < 0:

container/garray/garray_sorted_int.go

@@ -8,8 +8,8 @@ package garray
 
 import (
 	"bytes"
-	"encoding/json"
 	"fmt"
+	"github.com/gogf/gf/internal/json"
 	"math"
 	"sort"
 
@@ -443,7 +443,7 @@ func (a *SortedIntArray) binSearch(value int, lock bool) (index int, result int)
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = (min + max) / 2
+		mid = min + int((max-min)/2)
 		cmp = a.getComparator()(value, a.array[mid])
 		switch {
 		case cmp < 0:

container/garray/garray_sorted_str.go

@@ -8,7 +8,7 @@ package garray
 
 import (
 	"bytes"
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/text/gstr"
 	"math"
 	"sort"
@@ -445,7 +445,7 @@ func (a *SortedStrArray) binSearch(value string, lock bool) (index int, result i
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = (min + max) / 2
+		mid = min + int((max-min)/2)
 		cmp = a.getComparator()(value, a.array[mid])
 		switch {
 		case cmp < 0:

container/garray/garray_z_example_any_test.go

@@ -13,7 +13,7 @@ import (
 	"github.com/gogf/gf/container/garray"
 )
 
-func Example_basic() {
+func ExampleNew() {
 	// A normal array.
 	a := garray.New()
 
@@ -72,18 +72,18 @@ func Example_basic() {
 	// []
 }
 
-func Example_iterate() {
-	array := garray.NewStrArrayFrom(g.SliceStr{"a", "b", "c"})
+func ExampleArray_Iterator() {
+	array := garray.NewArrayFrom(g.Slice{"a", "b", "c"})
 	// Iterator is alias of IteratorAsc, which iterates the array readonly in ascending order
 	//  with given callback function <f>.
 	// If <f> returns true, then it continues iterating; or false to stop.
-	array.Iterator(func(k int, v string) bool {
+	array.Iterator(func(k int, v interface{}) bool {
 		fmt.Println(k, v)
 		return true
 	})
 	// IteratorDesc iterates the array readonly in descending order with given callback function <f>.
 	// If <f> returns true, then it continues iterating; or false to stop.
-	array.IteratorDesc(func(k int, v string) bool {
+	array.IteratorDesc(func(k int, v interface{}) bool {
 		fmt.Println(k, v)
 		return true
 	})
@@ -97,7 +97,7 @@ func Example_iterate() {
 	// 0 a
 }
 
-func Example_reverse() {
+func ExampleArray_Reverse() {
 	array := garray.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
 
 	// Reverse makes array with elements in reverse order.
@@ -107,14 +107,14 @@ func Example_reverse() {
 	// [9 8 7 6 5 4 3 2 1]
 }
 
-func Example_shuffle() {
+func ExampleArray_Shuffle() {
 	array := garray.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
 
 	// Shuffle randomly shuffles the array.
 	fmt.Println(array.Shuffle().Slice())
 }
 
-func Example_rand() {
+func ExampleArray_Rands() {
 	array := garray.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
 
 	// Randomly retrieve and return 2 items from the array.
@@ -126,7 +126,19 @@ func Example_rand() {
 	fmt.Println(array.PopRand())
 }
 
-func Example_join() {
+func ExampleArray_PopRand() {
+	array := garray.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	// Randomly retrieve and return 2 items from the array.
+	// It does not delete the items from array.
+	fmt.Println(array.Rands(2))
+
+	// Randomly pick and return one item from the array.
+	// It deletes the picked up item from array.
+	fmt.Println(array.PopRand())
+}
+
+func ExampleArray_Join() {
 	array := garray.NewFrom(g.Slice{"a", "b", "c", "d"})
 	fmt.Println(array.Join(","))
 
@@ -134,7 +146,7 @@ func Example_join() {
 	// a,b,c,d
 }
 
-func Example_chunk() {
+func ExampleArray_Chunk() {
 	array := garray.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
 
 	// Chunk splits an array into multiple arrays,
@@ -146,7 +158,7 @@ func Example_chunk() {
 	// [[1 2] [3 4] [5 6] [7 8] [9]]
 }
 
-func Example_popItem() {
+func ExampleArray_PopLeft() {
 	array := garray.NewFrom([]interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9})
 
 	// Any Pop* functions pick, delete and return the item from array.
@@ -163,22 +175,58 @@ func Example_popItem() {
 	// [7 8]
 }
 
-func Example_walk() {
-	var array garray.StrArray
-	tables := g.SliceStr{"user", "user_detail"}
-	prefix := "gf_"
-	array.Append(tables...)
-	// Add prefix for given table names.
-	array.Walk(func(value string) string {
-		return prefix + value
-	})
-	fmt.Println(array.Slice())
+func ExampleArray_PopLefts() {
+	array := garray.NewFrom([]interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	// Any Pop* functions pick, delete and return the item from array.
+
+	fmt.Println(array.PopLeft())
+	fmt.Println(array.PopLefts(2))
+	fmt.Println(array.PopRight())
+	fmt.Println(array.PopRights(2))
 
 	// Output:
-	// [gf_user gf_user_detail]
+	// 1 true
+	// [2 3]
+	// 9 true
+	// [7 8]
 }
 
-func Example_contains() {
+func ExampleArray_PopRight() {
+	array := garray.NewFrom([]interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	// Any Pop* functions pick, delete and return the item from array.
+
+	fmt.Println(array.PopLeft())
+	fmt.Println(array.PopLefts(2))
+	fmt.Println(array.PopRight())
+	fmt.Println(array.PopRights(2))
+
+	// Output:
+	// 1 true
+	// [2 3]
+	// 9 true
+	// [7 8]
+}
+
+func ExampleArray_PopRights() {
+	array := garray.NewFrom([]interface{}{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	// Any Pop* functions pick, delete and return the item from array.
+
+	fmt.Println(array.PopLeft())
+	fmt.Println(array.PopLefts(2))
+	fmt.Println(array.PopRight())
+	fmt.Println(array.PopRights(2))
+
+	// Output:
+	// 1 true
+	// [2 3]
+	// 9 true
+	// [7 8]
+}
+
+func ExampleArray_Contains() {
 	var array garray.StrArray
 	array.Append("a")
 	fmt.Println(array.Contains("a"))
@@ -191,7 +239,7 @@ func Example_contains() {
 	// true
 }
 
-func Example_mergeArray() {
+func ExampleArray_Merge() {
 	array1 := garray.NewFrom(g.Slice{1, 2})
 	array2 := garray.NewFrom(g.Slice{3, 4})
 	slice1 := g.Slice{5, 6}
@@ -210,7 +258,18 @@ func Example_mergeArray() {
 	// [1 2 1 2 3 4 5 6 7 8 9 0]
 }
 
-func Example_filter() {
+func ExampleArray_FilterEmpty() {
+	array1 := garray.NewFrom(g.Slice{0, 1, 2, nil, "", g.Slice{}, "john"})
+	array2 := garray.NewFrom(g.Slice{0, 1, 2, nil, "", g.Slice{}, "john"})
+	fmt.Printf("%#v\n", array1.FilterNil().Slice())
+	fmt.Printf("%#v\n", array2.FilterEmpty().Slice())
+
+	// Output:
+	// []interface {}{0, 1, 2, "", []interface {}{}, "john"}
+	// []interface {}{1, 2, "john"}
+}
+
+func ExampleArray_FilterNil() {
 	array1 := garray.NewFrom(g.Slice{0, 1, 2, nil, "", g.Slice{}, "john"})
 	array2 := garray.NewFrom(g.Slice{0, 1, 2, nil, "", g.Slice{}, "john"})
 	fmt.Printf("%#v\n", array1.FilterNil().Slice())

container/garray/garray_z_example_str_test.go

@@ -0,0 +1,28 @@
+// Copyright 2018 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,
+// You can obtain one at https://github.com/gogf/gf.
+
+package garray_test
+
+import (
+	"fmt"
+	"github.com/gogf/gf/container/garray"
+	"github.com/gogf/gf/frame/g"
+)
+
+func ExampleStrArray_Walk() {
+	var array garray.StrArray
+	tables := g.SliceStr{"user", "user_detail"}
+	prefix := "gf_"
+	array.Append(tables...)
+	// Add prefix for given table names.
+	array.Walk(func(value string) string {
+		return prefix + value
+	})
+	fmt.Println(array.Slice())
+
+	// Output:
+	// [gf_user gf_user_detail]
+}

container/garray/garray_z_unit_normal_any_array_test.go

@@ -9,8 +9,8 @@
 package garray_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"testing"
 	"time"
 
@@ -95,9 +95,9 @@ func TestArray_Sort(t *testing.T) {
 
 func TestArray_Unique(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		expect := []interface{}{1, 1, 2, 3}
+		expect := []interface{}{1, 2, 3, 4, 5, 3, 2, 2, 3, 5, 5}
 		array := garray.NewArrayFrom(expect)
-		t.Assert(array.Unique().Slice(), []interface{}{1, 2, 3})
+		t.Assert(array.Unique().Slice(), []interface{}{1, 2, 3, 4, 5})
 	})
 }
 

container/garray/garray_z_unit_normal_int_array_test.go

@@ -9,8 +9,8 @@
 package garray_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"testing"
 	"time"
 
@@ -87,9 +87,9 @@ func TestIntArray_Sort(t *testing.T) {
 
 func TestIntArray_Unique(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		expect := []int{1, 1, 2, 3}
+		expect := []int{1, 2, 3, 4, 5, 3, 2, 2, 3, 5, 5}
 		array := garray.NewIntArrayFrom(expect)
-		t.Assert(array.Unique().Slice(), []int{1, 2, 3})
+		t.Assert(array.Unique().Slice(), []int{1, 2, 3, 4, 5})
 	})
 }
 

container/garray/garray_z_unit_normal_str_array_test.go

@@ -9,8 +9,8 @@
 package garray_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"strings"
 	"testing"
 	"time"
@@ -91,7 +91,7 @@ func TestStrArray_Sort(t *testing.T) {
 
 func TestStrArray_Unique(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		expect := []string{"1", "1", "2", "3"}
+		expect := []string{"1", "1", "2", "2", "3", "3", "2", "2"}
 		array := garray.NewStrArrayFrom(expect)
 		t.Assert(array.Unique().Slice(), []string{"1", "2", "3"})
 	})

container/garray/garray_z_unit_sorted_any_array_test.go

@@ -9,8 +9,8 @@
 package garray_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gutil"
 	"strings"
 	"testing"
@@ -526,15 +526,21 @@ func TestSortedArray_CountValues(t *testing.T) {
 
 func TestSortedArray_SetUnique(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		a1 := []interface{}{"a", "d", "c", "c"}
-
-		func1 := func(v1, v2 interface{}) int {
-			return strings.Compare(gconv.String(v1), gconv.String(v2))
-		}
-		array1 := garray.NewSortedArrayFrom(a1, func1)
+		a1 := []interface{}{1, 2, 3, 4, 5, 3, 2, 2, 3, 5, 5}
+		array1 := garray.NewSortedArrayFrom(a1, gutil.ComparatorInt)
 		array1.SetUnique(true)
-		t.Assert(array1.Len(), 3)
-		t.Assert(array1, []interface{}{"a", "c", "d"})
+		t.Assert(array1.Len(), 5)
+		t.Assert(array1, []interface{}{1, 2, 3, 4, 5})
+	})
+}
+
+func TestSortedArray_Unique(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		a1 := []interface{}{1, 2, 3, 4, 5, 3, 2, 2, 3, 5, 5}
+		array1 := garray.NewSortedArrayFrom(a1, gutil.ComparatorInt)
+		array1.Unique()
+		t.Assert(array1.Len(), 5)
+		t.Assert(array1, []interface{}{1, 2, 3, 4, 5})
 	})
 }
 

container/garray/garray_z_unit_sorted_int_array_test.go

@@ -9,8 +9,8 @@
 package garray_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"testing"
 	"time"
 
@@ -436,7 +436,7 @@ func TestSortedIntArray_CountValues(t *testing.T) {
 
 func TestSortedIntArray_SetUnique(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		a1 := []int{1, 2, 3, 4, 5, 3}
+		a1 := []int{1, 2, 3, 4, 5, 3, 2, 2, 3, 5, 5}
 		array1 := garray.NewSortedIntArrayFrom(a1)
 		array1.SetUnique(true)
 		t.Assert(array1.Len(), 5)
@@ -444,6 +444,16 @@ func TestSortedIntArray_SetUnique(t *testing.T) {
 	})
 }
 
+func TestSortedIntArray_Unique(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		a1 := []int{1, 2, 3, 4, 5, 3, 2, 2, 3, 5, 5}
+		array1 := garray.NewSortedIntArrayFrom(a1)
+		array1.Unique()
+		t.Assert(array1.Len(), 5)
+		t.Assert(array1, []int{1, 2, 3, 4, 5})
+	})
+}
+
 func TestSortedIntArray_LockFunc(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
 		s1 := []int{1, 2, 3, 4}

container/garray/garray_z_unit_sorted_str_array_test.go

@@ -9,8 +9,8 @@
 package garray_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"testing"
 	"time"
 
@@ -454,11 +454,21 @@ func TestSortedStrArray_Chunk(t *testing.T) {
 
 func TestSortedStrArray_SetUnique(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {
-		a1 := []string{"e", "a", "d", "a", "c"}
+		a1 := []string{"1", "1", "2", "2", "3", "3", "2", "2"}
 		array1 := garray.NewSortedStrArrayFrom(a1)
 		array2 := array1.SetUnique(true)
-		t.Assert(array2.Len(), 4)
-		t.Assert(array2, []string{"a", "c", "d", "e"})
+		t.Assert(array2.Len(), 3)
+		t.Assert(array2, []string{"1", "2", "3"})
+	})
+}
+
+func TestSortedStrArray_Unique(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		a1 := []string{"1", "1", "2", "2", "3", "3", "2", "2"}
+		array1 := garray.NewSortedStrArrayFrom(a1)
+		array1.Unique()
+		t.Assert(array1.Len(), 3)
+		t.Assert(array1, []string{"1", "2", "3"})
 	})
 }
 

container/glist/glist.go

@@ -11,7 +11,7 @@ package glist
 import (
 	"bytes"
 	"container/list"
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 
 	"github.com/gogf/gf/internal/rwmutex"

container/glist/glist_example_test.go

@@ -15,7 +15,7 @@ import (
 	"github.com/gogf/gf/container/glist"
 )
 
-func Example_basic() {
+func ExampleNew() {
 	n := 10
 	l := glist.New()
 	for i := 0; i < n; i++ {
@@ -32,14 +32,14 @@ func Example_basic() {
 	fmt.Println(l.Len())
 
 	// Output:
-	//10
-	//[0 1 2 3 4 5 6 7 8 9]
-	//[9 8 7 6 5 4 3 2 1 0]
-	//0123456789
-	//0
+	// 10
+	// [0 1 2 3 4 5 6 7 8 9]
+	// [9 8 7 6 5 4 3 2 1 0]
+	// 0123456789
+	// 0
 }
 
-func Example_iterate() {
+func ExampleList_RLockFunc() {
 	// concurrent-safe list.
 	l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true)
 	// iterate reading from head.
@@ -63,21 +63,39 @@ func Example_iterate() {
 	})
 
 	fmt.Println()
+	// Output:
+	// 12345678910
+	// 10987654321
+}
 
+func ExampleList_IteratorAsc() {
+	// concurrent-safe list.
+	l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true)
 	// iterate reading from head using IteratorAsc.
 	l.IteratorAsc(func(e *glist.Element) bool {
 		fmt.Print(e.Value)
 		return true
 	})
-	fmt.Println()
+
+	// Output:
+	// 12345678910
+}
+
+func ExampleList_IteratorDesc() {
+	// concurrent-safe list.
+	l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true)
 	// iterate reading from tail using IteratorDesc.
 	l.IteratorDesc(func(e *glist.Element) bool {
 		fmt.Print(e.Value)
 		return true
 	})
+	// Output:
+	// 10987654321
+}
 
-	fmt.Println()
-
+func ExampleList_LockFunc() {
+	// concurrent-safe list.
+	l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true)
 	// iterate writing from head.
 	l.LockFunc(func(list *list.List) {
 		length := list.Len()
@@ -92,30 +110,46 @@ func Example_iterate() {
 	})
 	fmt.Println(l)
 
-	//output:
-	//12345678910
-	//10987654321
-	//12345678910
-	//10987654321
-	//[1,2,3,4,5,M,7,8,9,10]
+	// Output:
+	// [1,2,3,4,5,M,7,8,9,10]
 }
 
-func Example_popItem() {
+func ExampleList_PopBack() {
 	l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
 
 	fmt.Println(l.PopBack())
-	fmt.Println(l.PopBacks(2))
-	fmt.Println(l.PopFront())
-	fmt.Println(l.PopFronts(2))
 
 	// Output:
 	// 9
-	// [8 7]
-	// 1
-	// [2 3]
+}
+func ExampleList_PopBacks() {
+	l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	fmt.Println(l.PopBacks(2))
+
+	// Output:
+	// [9 8]
 }
 
-func Example_join() {
+func ExampleList_PopFront() {
+	l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	fmt.Println(l.PopFront())
+
+	// Output:
+	// 1
+}
+
+func ExampleList_PopFronts() {
+	l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7, 8, 9})
+
+	fmt.Println(l.PopFronts(2))
+
+	// Output:
+	// [1 2]
+}
+
+func ExampleList_Join() {
 	var l glist.List
 	l.PushBacks(g.Slice{"a", "b", "c", "d"})
 

container/glist/glist_z_unit_test.go

@@ -8,7 +8,7 @@ package glist
 
 import (
 	"container/list"
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 

container/gmap/gmap_hash_any_any_map.go

@@ -7,7 +7,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/internal/empty"
 
@@ -457,6 +457,12 @@ func (m *AnyAnyMap) Merge(other *AnyAnyMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *AnyAnyMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *AnyAnyMap) MarshalJSON() ([]byte, error) {
 	return json.Marshal(gconv.Map(m.Map()))

container/gmap/gmap_hash_int_any_map.go

@@ -8,7 +8,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/internal/empty"
 
@@ -455,6 +455,12 @@ func (m *IntAnyMap) Merge(other *IntAnyMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *IntAnyMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *IntAnyMap) MarshalJSON() ([]byte, error) {
 	m.mu.RLock()

container/gmap/gmap_hash_int_int_map.go

@@ -7,7 +7,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 
 	"github.com/gogf/gf/internal/empty"
@@ -426,6 +426,12 @@ func (m *IntIntMap) Merge(other *IntIntMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *IntIntMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *IntIntMap) MarshalJSON() ([]byte, error) {
 	m.mu.RLock()

container/gmap/gmap_hash_int_str_map.go

@@ -7,7 +7,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/internal/empty"
 
@@ -426,6 +426,12 @@ func (m *IntStrMap) Merge(other *IntStrMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *IntStrMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *IntStrMap) MarshalJSON() ([]byte, error) {
 	m.mu.RLock()

container/gmap/gmap_hash_str_any_map.go

@@ -8,7 +8,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/internal/empty"
 
@@ -451,6 +451,12 @@ func (m *StrAnyMap) Merge(other *StrAnyMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *StrAnyMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *StrAnyMap) MarshalJSON() ([]byte, error) {
 	m.mu.RLock()

container/gmap/gmap_hash_str_int_map.go

@@ -8,7 +8,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/internal/empty"
 	"github.com/gogf/gf/internal/rwmutex"
@@ -429,6 +429,12 @@ func (m *StrIntMap) Merge(other *StrIntMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *StrIntMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *StrIntMap) MarshalJSON() ([]byte, error) {
 	m.mu.RLock()

container/gmap/gmap_hash_str_str_map.go

@@ -8,7 +8,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 
 	"github.com/gogf/gf/internal/empty"
@@ -429,6 +429,12 @@ func (m *StrStrMap) Merge(other *StrStrMap) {
 	}
 }
 
+// String returns the map as a string.
+func (m *StrStrMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *StrStrMap) MarshalJSON() ([]byte, error) {
 	m.mu.RLock()

container/gmap/gmap_list_map.go

@@ -7,7 +7,7 @@
 package gmap
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/internal/empty"
 
@@ -510,6 +510,12 @@ func (m *ListMap) Merge(other *ListMap) {
 	})
 }
 
+// String returns the map as a string.
+func (m *ListMap) String() string {
+	b, _ := m.MarshalJSON()
+	return gconv.UnsafeBytesToStr(b)
+}
+
 // MarshalJSON implements the interface MarshalJSON for json.Marshal.
 func (m *ListMap) MarshalJSON() ([]byte, error) {
 	return json.Marshal(gconv.Map(m.Map()))

container/gmap/gmap_z_example_any_any_test.go

@@ -0,0 +1,207 @@
+// Copyright 2019 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 gm file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gmap_test
+
+import (
+	"fmt"
+	"github.com/gogf/gf/frame/g"
+
+	"github.com/gogf/gf/container/gmap"
+)
+
+func ExampleNew() {
+	m := gmap.New()
+
+	// Add data.
+	m.Set("key1", "val1")
+
+	// Print size.
+	fmt.Println(m.Size())
+
+	addMap := make(map[interface{}]interface{})
+	addMap["key2"] = "val2"
+	addMap["key3"] = "val3"
+	addMap[1] = 1
+
+	fmt.Println(m.Values())
+
+	// Batch add data.
+	m.Sets(addMap)
+
+	// Gets the value of the corresponding key.
+	fmt.Println(m.Get("key3"))
+
+	// Get the value by key, or set it with given key-value if not exist.
+	fmt.Println(m.GetOrSet("key4", "val4"))
+
+	// Set key-value if the key does not exist, then return true; or else return false.
+	fmt.Println(m.SetIfNotExist("key3", "val3"))
+
+	// Remove key
+	m.Remove("key2")
+	fmt.Println(m.Keys())
+
+	// Batch remove keys.
+	m.Removes([]interface{}{"key1", 1})
+	fmt.Println(m.Keys())
+
+	// Contains checks whether a key exists.
+	fmt.Println(m.Contains("key3"))
+
+	// Flip exchanges key-value of the map, it will change key-value to value-key.
+	m.Flip()
+	fmt.Println(m.Map())
+
+	// Clear deletes all data of the map.
+	m.Clear()
+
+	fmt.Println(m.Size())
+
+	// May Output:
+	// 1
+	// [val1]
+	// val3
+	// val4
+	// false
+	// [key4 key1 key3 1]
+	// [key4 key3]
+	// true
+	// map[val3:key3 val4:key4]
+	// 0
+}
+
+func ExampleAnyAnyMap_Keys() {
+	var m gmap.Map
+	m.Sets(g.MapAnyAny{
+		"k1": "v1",
+		"k2": "v2",
+		"k3": "v3",
+		"k4": "v4",
+	})
+	fmt.Println(m.Keys())
+	fmt.Println(m.Values())
+
+	// May Output:
+	// [k1 k2 k3 k4]
+	// [v2 v3 v4 v1]
+}
+
+func ExampleAnyAnyMap_Values() {
+	var m gmap.Map
+	m.Sets(g.MapAnyAny{
+		"k1": "v1",
+		"k2": "v2",
+		"k3": "v3",
+		"k4": "v4",
+	})
+	fmt.Println(m.Keys())
+	fmt.Println(m.Values())
+
+	// May Output:
+	// [k1 k2 k3 k4]
+	// [v2 v3 v4 v1]
+}
+
+func ExampleAnyAnyMap_Flip() {
+	var m gmap.Map
+	m.Sets(g.MapAnyAny{
+		"k1": "v1",
+		"k2": "v2",
+	})
+	m.Flip()
+	fmt.Println(m.Map())
+
+	// May Output:
+	// map[v1:k1 v2:k2]
+}
+
+func ExampleAnyAnyMap_Pop() {
+	var m gmap.Map
+	m.Sets(g.MapAnyAny{
+		"k1": "v1",
+		"k2": "v2",
+		"k3": "v3",
+		"k4": "v4",
+	})
+	fmt.Println(m.Pop())
+	fmt.Println(m.Pops(2))
+	fmt.Println(m.Size())
+
+	// May Output:
+	// k1 v1
+	// map[k2:v2 k4:v4]
+	// 1
+}
+
+func ExampleAnyAnyMap_Pops() {
+	var m gmap.Map
+	m.Sets(g.MapAnyAny{
+		"k1": "v1",
+		"k2": "v2",
+		"k3": "v3",
+		"k4": "v4",
+	})
+	fmt.Println(m.Pop())
+	fmt.Println(m.Pops(2))
+	fmt.Println(m.Size())
+
+	// May Output:
+	// k1 v1
+	// map[k2:v2 k4:v4]
+	// 1
+}
+
+func ExampleAnyAnyMap_FilterEmpty() {
+	m := gmap.NewFrom(g.MapAnyAny{
+		"k1": "",
+		"k2": nil,
+		"k3": 0,
+		"k4": 1,
+	})
+	m.FilterEmpty()
+	fmt.Println(m.Map())
+
+	// May Output:
+	// map[k4:1]
+}
+
+func ExampleAnyAnyMap_FilterNil() {
+	m := gmap.NewFrom(g.MapAnyAny{
+		"k1": "",
+		"k2": nil,
+		"k3": 0,
+		"k4": 1,
+	})
+	m.FilterNil()
+	fmt.Println(m.Map())
+
+	// May Output:
+	// map[k1: k3:0 k4:1]
+}
+
+func ExampleAnyAnyMap_SetIfNotExist() {
+	var m gmap.Map
+	fmt.Println(m.SetIfNotExist("k1", "v1"))
+	fmt.Println(m.SetIfNotExist("k1", "v1"))
+	fmt.Println(m.Map())
+
+	// Output:
+	// true
+	// false
+	// map[k1:v1]
+}
+
+func ExampleAnyAnyMap_Merge() {
+	var m1, m2 gmap.Map
+	m1.Set("key1", "val1")
+	m2.Set("key2", "val2")
+	m1.Merge(&m2)
+	fmt.Println(m1.Map())
+
+	// May Output:
+	// map[key1:val1 key2:val2]
+}

container/gmap/gmap_z_example_test.go

@@ -1,162 +0,0 @@
-// Copyright 2019 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 gm file,
-// You can obtain one at https://github.com/gogf/gf.
-
-package gmap_test
-
-import (
-	"fmt"
-	"github.com/gogf/gf/frame/g"
-
-	"github.com/gogf/gf/container/gmap"
-)
-
-func Example_normalBasic() {
-	m := gmap.New()
-
-	//Add data
-	m.Set("key1", "val1")
-
-	//Print size
-	fmt.Println(m.Size())
-	//output 1
-
-	add_map := make(map[interface{}]interface{})
-	add_map["key2"] = "val2"
-	add_map["key3"] = "val3"
-	add_map[1] = 1
-
-	fmt.Println(m.Values())
-
-	//Batch add data
-	m.Sets(add_map)
-
-	//Gets the value of the corresponding key
-	key3_val := m.Get("key3")
-	fmt.Println(key3_val)
-
-	//Get the value by key, or set it with given key-value if not exist.
-	get_or_set_val := m.GetOrSet("key4", "val4")
-	fmt.Println(get_or_set_val)
-
-	// Set key-value if the key does not exist, then return true; or else return false.
-	is_set := m.SetIfNotExist("key3", "val3")
-	fmt.Println(is_set)
-
-	//Remove key
-	m.Remove("key2")
-	fmt.Println(m.Keys())
-
-	//Batch remove keys
-	remove_keys := []interface{}{"key1", 1}
-	m.Removes(remove_keys)
-	fmt.Println(m.Keys())
-
-	//Contains checks whether a key exists.
-	is_contain := m.Contains("key3")
-	fmt.Println(is_contain)
-
-	//Flip exchanges key-value of the map, it will change key-value to value-key.
-	m.Flip()
-	fmt.Println(m.Map())
-
-	// Clear deletes all data of the map,
-	m.Clear()
-
-	fmt.Println(m.Size())
-}
-
-func Example_keysValues() {
-	var m gmap.Map
-	m.Sets(g.MapAnyAny{
-		"k1": "v1",
-		"k2": "v2",
-		"k3": "v3",
-		"k4": "v4",
-	})
-	fmt.Println(m.Keys())
-	fmt.Println(m.Values())
-
-	// May Output:
-	// [k1 k2 k3 k4]
-	// [v2 v3 v4 v1]
-}
-
-func Example_flip() {
-	var m gmap.Map
-	m.Sets(g.MapAnyAny{
-		"k1": "v1",
-		"k2": "v2",
-	})
-	m.Flip()
-	fmt.Println(m.Map())
-
-	// May Output:
-	// map[v1:k1 v2:k2]
-}
-
-func Example_pop() {
-	var m gmap.Map
-	m.Sets(g.MapAnyAny{
-		"k1": "v1",
-		"k2": "v2",
-		"k3": "v3",
-		"k4": "v4",
-	})
-	fmt.Println(m.Pop())
-	fmt.Println(m.Pops(2))
-	fmt.Println(m.Size())
-
-	// May Output:
-	// k1 v1
-	// map[k2:v2 k4:v4]
-	// 1
-}
-
-func Example_filter() {
-	m1 := gmap.NewFrom(g.MapAnyAny{
-		"k1": "",
-		"k2": nil,
-		"k3": 0,
-		"k4": 1,
-	})
-	m2 := gmap.NewFrom(g.MapAnyAny{
-		"k1": "",
-		"k2": nil,
-		"k3": 0,
-		"k4": 1,
-	})
-	m1.FilterEmpty()
-	m2.FilterNil()
-	fmt.Println(m1.Map())
-	fmt.Println(m2.Map())
-
-	// Output:
-	// map[k4:1]
-	// map[k1: k3:0 k4:1]
-}
-
-func Example_setIfNotExist() {
-	var m gmap.Map
-	fmt.Println(m.SetIfNotExist("k1", "v1"))
-	fmt.Println(m.SetIfNotExist("k1", "v1"))
-	fmt.Println(m.Map())
-
-	// Output:
-	// true
-	// false
-	// map[k1:v1]
-}
-
-func Example_normalMerge() {
-	var m1, m2 gmap.Map
-	m1.Set("key1", "val1")
-	m2.Set("key2", "val2")
-	m1.Merge(&m2)
-	fmt.Println(m1.Map())
-
-	// May Output:
-	// map[key1:val1 key2:val2]
-}

container/gmap/gmap_z_unit_any_any_test.go

@@ -7,10 +7,10 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/container/gmap"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"testing"

container/gmap/gmap_z_unit_int_any_test.go

@@ -7,9 +7,9 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_int_int_test.go

@@ -7,9 +7,9 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_int_str_test.go

@@ -7,9 +7,9 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_list_map_test.go

@@ -7,8 +7,8 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_str_any_test.go

@@ -7,9 +7,9 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_str_int_test.go

@@ -7,9 +7,9 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_str_str_test.go

@@ -7,9 +7,9 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/garray"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gmap/gmap_z_unit_tree_map_test.go

@@ -7,8 +7,8 @@
 package gmap_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gpool/gpool.go

@@ -170,6 +170,7 @@ func (p *Pool) checkExpireItems() {
 		if r := p.list.PopFront(); r != nil {
 			item := r.(*poolItem)
 			latestExpire = item.expire
+			// TODO improve the auto-expiration mechanism of the pool.
 			if item.expire > timestampMilli {
 				p.list.PushFront(item)
 				break

container/gset/gset_any_set.go

@@ -9,7 +9,7 @@ package gset
 
 import (
 	"bytes"
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/internal/rwmutex"
 	"github.com/gogf/gf/text/gstr"
 	"github.com/gogf/gf/util/gconv"

container/gset/gset_int_set.go

@@ -9,7 +9,7 @@ package gset
 
 import (
 	"bytes"
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/internal/rwmutex"
 	"github.com/gogf/gf/util/gconv"
 )

container/gset/gset_str_set.go

@@ -9,7 +9,7 @@ package gset
 
 import (
 	"bytes"
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/internal/rwmutex"
 	"github.com/gogf/gf/text/gstr"
 	"github.com/gogf/gf/util/gconv"

container/gset/gset_z_example_any_test.go

@@ -12,7 +12,7 @@ import (
 	"github.com/gogf/gf/frame/g"
 )
 
-func Example_intersectDiffUnionComplement() {
+func ExampleSet_Intersect() {
 	s1 := gset.NewFrom(g.Slice{1, 2, 3})
 	s2 := gset.NewFrom(g.Slice{4, 5, 6})
 	s3 := gset.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7})
@@ -29,7 +29,58 @@ func Example_intersectDiffUnionComplement() {
 	// [4 5 6 7]
 }
 
-func Example_isSubsetOf() {
+func ExampleSet_Diff() {
+	s1 := gset.NewFrom(g.Slice{1, 2, 3})
+	s2 := gset.NewFrom(g.Slice{4, 5, 6})
+	s3 := gset.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7})
+
+	fmt.Println(s3.Intersect(s1).Slice())
+	fmt.Println(s3.Diff(s1).Slice())
+	fmt.Println(s1.Union(s2).Slice())
+	fmt.Println(s1.Complement(s3).Slice())
+
+	// May Output:
+	// [2 3 1]
+	// [5 6 7 4]
+	// [6 1 2 3 4 5]
+	// [4 5 6 7]
+}
+
+func ExampleSet_Union() {
+	s1 := gset.NewFrom(g.Slice{1, 2, 3})
+	s2 := gset.NewFrom(g.Slice{4, 5, 6})
+	s3 := gset.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7})
+
+	fmt.Println(s3.Intersect(s1).Slice())
+	fmt.Println(s3.Diff(s1).Slice())
+	fmt.Println(s1.Union(s2).Slice())
+	fmt.Println(s1.Complement(s3).Slice())
+
+	// May Output:
+	// [2 3 1]
+	// [5 6 7 4]
+	// [6 1 2 3 4 5]
+	// [4 5 6 7]
+}
+
+func ExampleSet_Complement() {
+	s1 := gset.NewFrom(g.Slice{1, 2, 3})
+	s2 := gset.NewFrom(g.Slice{4, 5, 6})
+	s3 := gset.NewFrom(g.Slice{1, 2, 3, 4, 5, 6, 7})
+
+	fmt.Println(s3.Intersect(s1).Slice())
+	fmt.Println(s3.Diff(s1).Slice())
+	fmt.Println(s1.Union(s2).Slice())
+	fmt.Println(s1.Complement(s3).Slice())
+
+	// May Output:
+	// [2 3 1]
+	// [5 6 7 4]
+	// [6 1 2 3 4 5]
+	// [4 5 6 7]
+}
+
+func ExampleSet_IsSubsetOf() {
 	var s1, s2 gset.Set
 	s1.Add(g.Slice{1, 2, 3}...)
 	s2.Add(g.Slice{2, 3}...)
@@ -41,7 +92,7 @@ func Example_isSubsetOf() {
 	// true
 }
 
-func Example_addIfNotExist() {
+func ExampleSet_AddIfNotExist() {
 	var set gset.Set
 	fmt.Println(set.AddIfNotExist(1))
 	fmt.Println(set.AddIfNotExist(1))
@@ -53,7 +104,7 @@ func Example_addIfNotExist() {
 	// [1]
 }
 
-func Example_pop() {
+func ExampleSet_Pop() {
 	var set gset.Set
 	set.Add(1, 2, 3, 4)
 	fmt.Println(set.Pop())
@@ -66,7 +117,20 @@ func Example_pop() {
 	// 1
 }
 
-func Example_join() {
+func ExampleSet_Pops() {
+	var set gset.Set
+	set.Add(1, 2, 3, 4)
+	fmt.Println(set.Pop())
+	fmt.Println(set.Pops(2))
+	fmt.Println(set.Size())
+
+	// May Output:
+	// 1
+	// [2 3]
+	// 1
+}
+
+func ExampleSet_Join() {
 	var set gset.Set
 	set.Add("a", "b", "c", "d")
 	fmt.Println(set.Join(","))
@@ -75,7 +139,7 @@ func Example_join() {
 	// a,b,c,d
 }
 
-func Example_contains() {
+func ExampleSet_Contains() {
 	var set gset.StrSet
 	set.Add("a")
 	fmt.Println(set.Contains("a"))
@@ -88,7 +152,7 @@ func Example_contains() {
 	// true
 }
 
-func Example_Contains() {
+func ExampleSet_ContainsI() {
 	var set gset.StrSet
 	set.Add("a")
 	fmt.Println(set.Contains("a"))
@@ -100,20 +164,3 @@ func Example_Contains() {
 	// false
 	// true
 }
-
-func Example_walk() {
-	var (
-		set    gset.StrSet
-		names  = g.SliceStr{"user", "user_detail"}
-		prefix = "gf_"
-	)
-	set.Add(names...)
-	// Add prefix for given table names.
-	set.Walk(func(item string) string {
-		return prefix + item
-	})
-	fmt.Println(set.Slice())
-
-	// May Output:
-	// [gf_user gf_user_detail]
-}

container/gset/gset_z_example_int_test.go

@@ -0,0 +1,23 @@
+// Copyright 2020 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 gm file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gset_test
+
+import (
+	"fmt"
+	"github.com/gogf/gf/container/gset"
+)
+
+func ExampleIntSet_Contains() {
+	var set gset.IntSet
+	set.Add(1)
+	fmt.Println(set.Contains(1))
+	fmt.Println(set.Contains(2))
+
+	// Output:
+	// true
+	// false
+}

container/gset/gset_z_example_str_test.go

@@ -0,0 +1,43 @@
+// Copyright 2020 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 gm file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gset_test
+
+import (
+	"fmt"
+	"github.com/gogf/gf/container/gset"
+	"github.com/gogf/gf/frame/g"
+)
+
+func ExampleStrSet_Contains() {
+	var set gset.StrSet
+	set.Add("a")
+	fmt.Println(set.Contains("a"))
+	fmt.Println(set.Contains("A"))
+	fmt.Println(set.ContainsI("A"))
+
+	// Output:
+	// true
+	// false
+	// true
+}
+
+func ExampleStrSet_Walk() {
+	var (
+		set    gset.StrSet
+		names  = g.SliceStr{"user", "user_detail"}
+		prefix = "gf_"
+	)
+	set.Add(names...)
+	// Add prefix for given table names.
+	set.Walk(func(item string) string {
+		return prefix + item
+	})
+	fmt.Println(set.Slice())
+
+	// May Output:
+	// [gf_user gf_user_detail]
+}

container/gset/gset_z_unit_any_test.go

@@ -9,8 +9,8 @@
 package gset_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"strings"
 	"sync"

container/gset/gset_z_unit_int_test.go

@@ -9,8 +9,8 @@
 package gset_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"strings"
 	"sync"

container/gset/gset_z_unit_str_test.go

@@ -9,8 +9,8 @@
 package gset_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"strings"
 	"sync"

container/gtree/gtree.go

@@ -5,4 +5,7 @@
 // You can obtain one at https://github.com/gogf/gf.
 
 // Package gtree provides concurrent-safe/unsafe tree containers.
+//
+// Some implements are from: https://github.com/emirpasic/gods
+// Thanks!
 package gtree

container/gtree/gtree_avltree.go

@@ -7,8 +7,8 @@
 package gtree
 
 import (
-	"encoding/json"
 	"fmt"
+	"github.com/gogf/gf/internal/json"
 
 	"github.com/gogf/gf/util/gconv"
 

container/gtree/gtree_btree.go

@@ -8,8 +8,8 @@ package gtree
 
 import (
 	"bytes"
-	"encoding/json"
 	"fmt"
+	"github.com/gogf/gf/internal/json"
 	"strings"
 
 	"github.com/gogf/gf/util/gconv"
@@ -620,7 +620,7 @@ func (tree *BTree) middle() int {
 func (tree *BTree) search(node *BTreeNode, key interface{}) (index int, found bool) {
 	low, mid, high := 0, 0, len(node.Entries)-1
 	for low <= high {
-		mid = (high + low) / 2
+		mid = low + int((high-low)/2)
 		compare := tree.getComparator()(key, node.Entries[mid].Key)
 		switch {
 		case compare > 0:

container/gtree/gtree_redblacktree.go

@@ -7,8 +7,8 @@
 package gtree
 
 import (
-	"encoding/json"
 	"fmt"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"github.com/gogf/gf/util/gutil"
 

container/gtype/interface.go

@@ -7,7 +7,7 @@
 package gtype
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"sync/atomic"
 )

container/gtype/z_bench_json_test.go

@@ -9,8 +9,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"testing"
 )
 

container/gtype/z_unit_bool_test.go

@@ -7,7 +7,7 @@
 package gtype_test
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gtype/z_unit_byte_test.go

@@ -7,7 +7,7 @@
 package gtype_test
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"sync"
 	"testing"

container/gtype/z_unit_bytes_test.go

@@ -7,7 +7,7 @@
 package gtype_test
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"testing"
 

container/gtype/z_unit_float32_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"math"

container/gtype/z_unit_float64_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"math"

container/gtype/z_unit_int32_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"math"

container/gtype/z_unit_int64_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"math"

container/gtype/z_unit_int_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"sync"

container/gtype/z_unit_interface_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"testing"

container/gtype/z_unit_string_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"testing"

container/gtype/z_unit_uint32_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"math"

container/gtype/z_unit_uint64_test.go

@@ -7,7 +7,7 @@
 package gtype_test
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/util/gconv"
 	"math"
 	"sync"

container/gtype/z_unit_uint_test.go

@@ -7,8 +7,8 @@
 package gtype_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gtype"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"github.com/gogf/gf/util/gconv"
 	"sync"

container/gvar/gvar.go

@@ -8,7 +8,7 @@
 package gvar
 
 import (
-	"encoding/json"
+	"github.com/gogf/gf/internal/json"
 	"time"
 
 	"github.com/gogf/gf/internal/empty"
@@ -18,17 +18,23 @@ import (
 	"github.com/gogf/gf/util/gconv"
 )
 
-// Var is an universal variable type.
+// Var is an universal variable type implementer.
 type Var struct {
 	value interface{} // Underlying value.
 	safe  bool        // Concurrent safe or not.
 }
 
-// New creates and returns a new *Var with given <value>.
+// New creates and returns a new Var with given <value>.
 // The optional parameter <safe> specifies whether Var is used in concurrent-safety,
 // which is false in default.
 func New(value interface{}, safe ...bool) *Var {
-	v := Create(value, safe...)
+	v := Var{}
+	if len(safe) > 0 && !safe[0] {
+		v.safe = true
+		v.value = gtype.NewInterface(value)
+	} else {
+		v.value = value
+	}
 	return &v
 }
 
@@ -202,7 +208,7 @@ func (v *Var) Array() []interface{} {
 	return v.Interfaces()
 }
 
-// Vars converts and returns <v> as []*Var.
+// Vars converts and returns <v> as []Var.
 func (v *Var) Vars() []*Var {
 	array := gconv.Interfaces(v.Val())
 	if len(array) == 0 {

container/gvar/gvar_list.go

@@ -0,0 +1,25 @@
+// Copyright 2020 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,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gvar
+
+import (
+	"github.com/gogf/gf/util/gutil"
+)
+
+// ListItemValues retrieves and returns the elements of all item struct/map with key <key>.
+// Note that the parameter <list> should be type of slice which contains elements of map or struct,
+// or else it returns an empty slice.
+func (v *Var) ListItemValues(key interface{}) (values []interface{}) {
+	return gutil.ListItemValues(v.Val(), key)
+}
+
+// ListItemValuesUnique retrieves and returns the unique elements of all struct/map with key <key>.
+// Note that the parameter <list> should be type of slice which contains elements of map or struct,
+// or else it returns an empty slice.
+func (v *Var) ListItemValuesUnique(key string) []interface{} {
+	return gutil.ListItemValuesUnique(v.Val(), key)
+}

container/gvar/gvar_map.go

@@ -13,12 +13,17 @@ func (v *Var) Map(tags ...string) map[string]interface{} {
 	return gconv.Map(v.Val(), tags...)
 }
 
+// MapStrAny is like function Map, but implements the interface of MapStrAny.
+func (v *Var) MapStrAny() map[string]interface{} {
+	return v.Map()
+}
+
 // MapStrStr converts and returns <v> as map[string]string.
 func (v *Var) MapStrStr(tags ...string) map[string]string {
 	return gconv.MapStrStr(v.Val(), tags...)
 }
 
-// MapStrVar converts and returns <v> as map[string]*Var.
+// MapStrVar converts and returns <v> as map[string]Var.
 func (v *Var) MapStrVar(tags ...string) map[string]*Var {
 	m := v.Map(tags...)
 	if len(m) > 0 {
@@ -62,15 +67,15 @@ func (v *Var) Maps(tags ...string) []map[string]interface{} {
 
 // MapToMap converts any map type variable <params> to another map type variable <pointer>.
 // See gconv.MapToMap.
-func (v *Var) MapToMap(pointer interface{}) (err error) {
-	return gconv.MapToMap(v.Val(), pointer)
+func (v *Var) MapToMap(pointer interface{}, mapping ...map[string]string) (err error) {
+	return gconv.MapToMap(v.Val(), pointer, mapping...)
 }
 
 // MapToMapDeep converts any map type variable <params> to another map type variable
 // <pointer> recursively.
 // See gconv.MapToMapDeep.
-func (v *Var) MapToMapDeep(pointer interface{}) (err error) {
-	return gconv.MapToMapDeep(v.Val(), pointer)
+func (v *Var) MapToMapDeep(pointer interface{}, mapping ...map[string]string) (err error) {
+	return gconv.MapToMapDeep(v.Val(), pointer, mapping...)
 }
 
 // MapToMaps converts any map type variable <params> to another map type variable <pointer>.

container/gvar/gvar_struct.go

@@ -6,7 +6,9 @@
 
 package gvar
 
-import "github.com/gogf/gf/util/gconv"
+import (
+	"github.com/gogf/gf/util/gconv"
+)
 
 // Struct maps value of <v> to <pointer>.
 // The parameter <pointer> should be a pointer to a struct instance.
@@ -18,16 +20,34 @@ func (v *Var) Struct(pointer interface{}, mapping ...map[string]string) error {
 // Struct maps value of <v> to <pointer> recursively.
 // The parameter <pointer> should be a pointer to a struct instance.
 // The parameter <mapping> is used to specify the key-to-attribute mapping rules.
+// Deprecated, use Struct instead.
 func (v *Var) StructDeep(pointer interface{}, mapping ...map[string]string) error {
 	return gconv.StructDeep(v.Val(), pointer, mapping...)
 }
 
 // Structs converts and returns <v> as given struct slice.
-func (v *Var) Structs(pointer interface{}, mapping ...map[string]string) (err error) {
+func (v *Var) Structs(pointer interface{}, mapping ...map[string]string) error {
 	return gconv.Structs(v.Val(), pointer, mapping...)
 }
 
 // StructsDeep converts and returns <v> as given struct slice recursively.
-func (v *Var) StructsDeep(pointer interface{}, mapping ...map[string]string) (err error) {
+// Deprecated, use Struct instead.
+func (v *Var) StructsDeep(pointer interface{}, mapping ...map[string]string) error {
 	return gconv.StructsDeep(v.Val(), pointer, mapping...)
 }
+
+// Scan automatically calls Struct or Structs function according to the type of parameter
+// <pointer> to implement the converting.
+// It calls function Struct if <pointer> is type of *struct/**struct to do the converting.
+// It calls function Structs if <pointer> is type of *[]struct/*[]*struct to do the converting.
+func (v *Var) Scan(pointer interface{}, mapping ...map[string]string) error {
+	return gconv.Scan(v.Val(), pointer, mapping...)
+}
+
+// ScanDeep automatically calls StructDeep or StructsDeep function according to the type of
+// parameter <pointer> to implement the converting.
+// It calls function StructDeep if <pointer> is type of *struct/**struct to do the converting.
+// It calls function StructsDeep if <pointer> is type of *[]struct/*[]*struct to do the converting.
+func (v *Var) ScanDeep(pointer interface{}, mapping ...map[string]string) error {
+	return gconv.ScanDeep(v.Val(), pointer, mapping...)
+}

container/gvar/gvar_z_unit_json_test.go

@@ -7,8 +7,8 @@
 package gvar_test
 
 import (
-	"encoding/json"
 	"github.com/gogf/gf/container/gvar"
+	"github.com/gogf/gf/internal/json"
 	"github.com/gogf/gf/test/gtest"
 	"math"
 	"testing"

container/gvar/gvar_z_unit_list_test.go

@@ -0,0 +1,115 @@
+// Copyright 2020 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,
+// You can obtain one at https://github.com/gogf/gf.
+
+package gvar_test
+
+import (
+	"github.com/gogf/gf/container/gvar"
+	"github.com/gogf/gf/frame/g"
+	"github.com/gogf/gf/test/gtest"
+	"testing"
+)
+
+func Test_ListItemValues_Map(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		listMap := g.List{
+			g.Map{"id": 1, "score": 100},
+			g.Map{"id": 2, "score": 99},
+			g.Map{"id": 3, "score": 99},
+		}
+		t.Assert(gvar.New(listMap).ListItemValues("id"), g.Slice{1, 2, 3})
+		t.Assert(gvar.New(listMap).ListItemValues("score"), g.Slice{100, 99, 99})
+	})
+	gtest.C(t, func(t *gtest.T) {
+		listMap := g.List{
+			g.Map{"id": 1, "score": 100},
+			g.Map{"id": 2, "score": nil},
+			g.Map{"id": 3, "score": 0},
+		}
+		t.Assert(gvar.New(listMap).ListItemValues("id"), g.Slice{1, 2, 3})
+		t.Assert(gvar.New(listMap).ListItemValues("score"), g.Slice{100, nil, 0})
+	})
+}
+
+func Test_ListItemValues_Struct(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		type T struct {
+			Id    int
+			Score float64
+		}
+		listStruct := g.Slice{
+			T{1, 100},
+			T{2, 99},
+			T{3, 0},
+		}
+		t.Assert(gvar.New(listStruct).ListItemValues("Id"), g.Slice{1, 2, 3})
+		t.Assert(gvar.New(listStruct).ListItemValues("Score"), g.Slice{100, 99, 0})
+	})
+	// Pointer items.
+	gtest.C(t, func(t *gtest.T) {
+		type T struct {
+			Id    int
+			Score float64
+		}
+		listStruct := g.Slice{
+			&T{1, 100},
+			&T{2, 99},
+			&T{3, 0},
+		}
+		t.Assert(gvar.New(listStruct).ListItemValues("Id"), g.Slice{1, 2, 3})
+		t.Assert(gvar.New(listStruct).ListItemValues("Score"), g.Slice{100, 99, 0})
+	})
+	// Nil element value.
+	gtest.C(t, func(t *gtest.T) {
+		type T struct {
+			Id    int
+			Score interface{}
+		}
+		listStruct := g.Slice{
+			T{1, 100},
+			T{2, nil},
+			T{3, 0},
+		}
+		t.Assert(gvar.New(listStruct).ListItemValues("Id"), g.Slice{1, 2, 3})
+		t.Assert(gvar.New(listStruct).ListItemValues("Score"), g.Slice{100, nil, 0})
+	})
+}
+
+func Test_ListItemValuesUnique(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		listMap := g.List{
+			g.Map{"id": 1, "score": 100},
+			g.Map{"id": 2, "score": 100},
+			g.Map{"id": 3, "score": 100},
+			g.Map{"id": 4, "score": 100},
+			g.Map{"id": 5, "score": 100},
+		}
+		t.Assert(gvar.New(listMap).ListItemValuesUnique("id"), g.Slice{1, 2, 3, 4, 5})
+		t.Assert(gvar.New(listMap).ListItemValuesUnique("score"), g.Slice{100})
+	})
+	gtest.C(t, func(t *gtest.T) {
+		listMap := g.List{
+			g.Map{"id": 1, "score": 100},
+			g.Map{"id": 2, "score": 100},
+			g.Map{"id": 3, "score": 100},
+			g.Map{"id": 4, "score": 100},
+			g.Map{"id": 5, "score": 99},
+		}
+		t.Assert(gvar.New(listMap).ListItemValuesUnique("id"), g.Slice{1, 2, 3, 4, 5})
+		t.Assert(gvar.New(listMap).ListItemValuesUnique("score"), g.Slice{100, 99})
+	})
+	gtest.C(t, func(t *gtest.T) {
+		listMap := g.List{
+			g.Map{"id": 1, "score": 100},
+			g.Map{"id": 2, "score": 100},
+			g.Map{"id": 3, "score": 0},
+			g.Map{"id": 4, "score": 100},
+			g.Map{"id": 5, "score": 99},
+		}
+		t.Assert(gvar.New(listMap).ListItemValuesUnique("id"), g.Slice{1, 2, 3, 4, 5})
+		t.Assert(gvar.New(listMap).ListItemValuesUnique("score"), g.Slice{100, 0, 99})
+	})
+}

container/gvar/gvar_z_unit_struct_test.go

@@ -10,6 +10,7 @@ import (
 	"github.com/gogf/gf/container/gvar"
 	"github.com/gogf/gf/frame/g"
 	"github.com/gogf/gf/test/gtest"
+	"github.com/gogf/gf/util/gconv"
 	"testing"
 )
 
@@ -40,3 +41,36 @@ func Test_Struct(t *testing.T) {
 		t.Assert(o.Test, -25)
 	})
 }
+
+func Test_Var_Attribute_Struct(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		type User struct {
+			Uid  int
+			Name string
+		}
+		user := new(User)
+		err := gconv.Struct(
+			g.Map{
+				"uid":  gvar.New(1),
+				"name": gvar.New("john"),
+			}, user)
+		t.Assert(err, nil)
+		t.Assert(user.Uid, 1)
+		t.Assert(user.Name, "john")
+	})
+	gtest.C(t, func(t *gtest.T) {
+		type User struct {
+			Uid  int
+			Name string
+		}
+		var user *User
+		err := gconv.Struct(
+			g.Map{
+				"uid":  gvar.New(1),
+				"name": gvar.New("john"),
+			}, &user)
+		t.Assert(err, nil)
+		t.Assert(user.Uid, 1)
+		t.Assert(user.Name, "john")
+	})
+}

database/gdb/gdb.go

@@ -11,9 +11,11 @@ import (
 	"database/sql"
 	"errors"
 	"fmt"
+	"github.com/gogf/gf/internal/cmdenv"
+	"time"
+
 	"github.com/gogf/gf/container/gvar"
 	"github.com/gogf/gf/internal/intlog"
-	"time"
 
 	"github.com/gogf/gf/os/glog"
 
@@ -25,46 +27,32 @@ import (
 
 // DB defines the interfaces for ORM operations.
 type DB interface {
+	// ===========================================================================
+	// Model creation.
+	// ===========================================================================
+
+	// The DB interface is designed not only for
+	// relational databases but also for NoSQL databases in the future. The name
+	// "Table" is not proper for that purpose any more.
+	Table(table ...string) *Model
+	Model(table ...string) *Model
+	Schema(schema string) *Schema
+
 	// Open creates a raw connection object for database with given node configuration.
 	// Note that it is not recommended using the this function manually.
 	Open(config *ConfigNode) (*sql.DB, error)
 
+	// ===========================================================================
 	// Query APIs.
+	// ===========================================================================
+
 	Query(sql string, args ...interface{}) (*sql.Rows, error)
 	Exec(sql string, args ...interface{}) (sql.Result, error)
 	Prepare(sql string, execOnMaster ...bool) (*sql.Stmt, error)
 
-	// Internal APIs for CURD, which can be overwrote for custom CURD implements.
-	DoQuery(link Link, sql string, args ...interface{}) (rows *sql.Rows, err error)
-	DoGetAll(link Link, sql string, args ...interface{}) (result Result, err error)
-	DoExec(link Link, sql string, args ...interface{}) (result sql.Result, err error)
-	DoPrepare(link Link, sql string) (*sql.Stmt, error)
-	DoInsert(link Link, table string, data interface{}, option int, batch ...int) (result sql.Result, err error)
-	DoBatchInsert(link Link, table string, list interface{}, option int, batch ...int) (result sql.Result, err error)
-	DoUpdate(link Link, table string, data interface{}, condition string, args ...interface{}) (result sql.Result, err error)
-	DoDelete(link Link, table string, condition string, args ...interface{}) (result sql.Result, err error)
-
-	// Query APIs for convenience purpose.
-	GetAll(sql string, args ...interface{}) (Result, error)
-	GetOne(sql string, args ...interface{}) (Record, error)
-	GetValue(sql string, args ...interface{}) (Value, error)
-	GetArray(sql string, args ...interface{}) ([]Value, error)
-	GetCount(sql string, args ...interface{}) (int, error)
-	GetStruct(objPointer interface{}, sql string, args ...interface{}) error
-	GetStructs(objPointerSlice interface{}, sql string, args ...interface{}) error
-	GetScan(objPointer interface{}, sql string, args ...interface{}) error
-
-	// Master/Slave specification support.
-	Master() (*sql.DB, error)
-	Slave() (*sql.DB, error)
-
-	// Ping-Pong.
-	PingMaster() error
-	PingSlave() error
-
-	// Transaction.
-	Begin() (*TX, error)
-	Transaction(f func(tx *TX) error) (err error)
+	// ===========================================================================
+	// Common APIs for CURD.
+	// ===========================================================================
 
 	Insert(table string, data interface{}, batch ...int) (sql.Result, error)
 	InsertIgnore(table string, data interface{}, batch ...int) (sql.Result, error)
@@ -78,12 +66,57 @@ type DB interface {
 	Update(table string, data interface{}, condition interface{}, args ...interface{}) (sql.Result, error)
 	Delete(table string, condition interface{}, args ...interface{}) (sql.Result, error)
 
-	// Model creation.
-	Table(table ...string) *Model
-	Model(table ...string) *Model
-	Schema(schema string) *Schema
+	// ===========================================================================
+	// Internal APIs for CURD, which can be overwrote for custom CURD implements.
+	// ===========================================================================
 
+	DoQuery(link Link, sql string, args ...interface{}) (rows *sql.Rows, err error)
+	DoGetAll(link Link, sql string, args ...interface{}) (result Result, err error)
+	DoExec(link Link, sql string, args ...interface{}) (result sql.Result, err error)
+	DoPrepare(link Link, sql string) (*sql.Stmt, error)
+	DoInsert(link Link, table string, data interface{}, option int, batch ...int) (result sql.Result, err error)
+	DoBatchInsert(link Link, table string, list interface{}, option int, batch ...int) (result sql.Result, err error)
+	DoUpdate(link Link, table string, data interface{}, condition string, args ...interface{}) (result sql.Result, err error)
+	DoDelete(link Link, table string, condition string, args ...interface{}) (result sql.Result, err error)
+
+	// ===========================================================================
+	// Query APIs for convenience purpose.
+	// ===========================================================================
+
+	GetAll(sql string, args ...interface{}) (Result, error)
+	GetOne(sql string, args ...interface{}) (Record, error)
+	GetValue(sql string, args ...interface{}) (Value, error)
+	GetArray(sql string, args ...interface{}) ([]Value, error)
+	GetCount(sql string, args ...interface{}) (int, error)
+	GetStruct(objPointer interface{}, sql string, args ...interface{}) error
+	GetStructs(objPointerSlice interface{}, sql string, args ...interface{}) error
+	GetScan(objPointer interface{}, sql string, args ...interface{}) error
+
+	// ===========================================================================
+	// Master/Slave specification support.
+	// ===========================================================================
+
+	Master() (*sql.DB, error)
+	Slave() (*sql.DB, error)
+
+	// ===========================================================================
+	// Ping-Pong.
+	// ===========================================================================
+
+	PingMaster() error
+	PingSlave() error
+
+	// ===========================================================================
+	// Transaction.
+	// ===========================================================================
+
+	Begin() (*TX, error)
+	Transaction(f func(tx *TX) error) (err error)
+
+	// ===========================================================================
 	// Configuration methods.
+	// ===========================================================================
+
 	GetCache() *gcache.Cache
 	SetDebug(debug bool)
 	GetDebug() bool
@@ -95,11 +128,15 @@ type DB interface {
 	GetDryRun() bool
 	SetLogger(logger *glog.Logger)
 	GetLogger() *glog.Logger
+	GetConfig() *ConfigNode
 	SetMaxIdleConnCount(n int)
 	SetMaxOpenConnCount(n int)
 	SetMaxConnLifetime(d time.Duration)
 
+	// ===========================================================================
 	// Utility methods.
+	// ===========================================================================
+
 	GetChars() (charLeft string, charRight string)
 	GetMaster(schema ...string) (*sql.DB, error)
 	GetSlave(schema ...string) (*sql.DB, error)
@@ -108,6 +145,7 @@ type DB interface {
 	QuotePrefixTableName(table string) string
 	Tables(schema ...string) (tables []string, err error)
 	TableFields(table string, schema ...string) (map[string]*TableField, error)
+	HasTable(name string) (bool, error)
 
 	// HandleSqlBeforeCommit is a hook function, which deals with the sql string before
 	// it's committed to underlying driver. The parameter <link> specifies the current
@@ -115,9 +153,12 @@ type DB interface {
 	// arguments <args> as you wish before they're committed to driver.
 	HandleSqlBeforeCommit(link Link, sql string, args []interface{}) (string, []interface{})
 
+	// ===========================================================================
 	// Internal methods.
-	filterFields(schema, table string, data map[string]interface{}) map[string]interface{}
-	convertValue(fieldValue []byte, fieldType string) interface{}
+	// ===========================================================================
+
+	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)
 }
 
@@ -126,11 +167,12 @@ 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.
+	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.
@@ -150,6 +192,7 @@ type Sql struct {
 	Error  error         // Execution result.
 	Start  int64         // Start execution timestamp in milliseconds.
 	End    int64         // End execution timestamp in milliseconds.
+	Group  string        // Group is the group name of the configuration that the sql is executed from.
 }
 
 // TableField is the struct for table field.
@@ -190,20 +233,23 @@ type (
 )
 
 const (
-	gINSERT_OPTION_DEFAULT       = 0
-	gINSERT_OPTION_REPLACE       = 1
-	gINSERT_OPTION_SAVE          = 2
-	gINSERT_OPTION_IGNORE        = 3
-	gDEFAULT_BATCH_NUM           = 10 // Per count for batch insert/replace/save
-	gDEFAULT_CONN_MAX_IDLE_COUNT = 10 // Max idle connection count in pool.
-	gDEFAULT_CONN_MAX_LIFE_TIME  = 30 // Max life time for per connection in pool in seconds.
+	insertOptionDefault     = 0
+	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.
 )
 
 var (
 	// ErrNoRows is alias of sql.ErrNoRows.
 	ErrNoRows = sql.ErrNoRows
+
 	// instances is the management map for instances.
 	instances = gmap.NewStrAnyMap(true)
+
 	// driverMap manages all custom registered driver.
 	driverMap = map[string]Driver{
 		"mysql":  &DriverMysql{},
@@ -212,8 +258,28 @@ var (
 		"oracle": &DriverOracle{},
 		"sqlite": &DriverSqlite{},
 	}
+
+	// lastOperatorRegPattern is the regular expression pattern for a string
+	// which has operator at its tail.
+	lastOperatorRegPattern = `[<>=]+\s*$`
+
+	// regularFieldNameRegPattern is the regular expression pattern for a string
+	// which is a regular field name of table.
+	regularFieldNameRegPattern = `^[\w\.\-]+$`
+
+	// internalCache is the memory cache for internal usage.
+	internalCache = gcache.New()
+
+	// allDryRun sets dry-run feature for all database connections.
+	// It is commonly used for command options for convenience.
+	allDryRun = false
 )
 
+func init() {
+	// allDryRun is initialized from environment or command options.
+	allDryRun = cmdenv.Get("gf.gdb.dryrun", false).Bool()
+}
+
 // Register registers custom database driver to gdb.
 func Register(name string, driver Driver) error {
 	driverMap[name] = driver
@@ -223,10 +289,10 @@ 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.
-func New(name ...string) (db DB, err error) {
-	group := configs.group
-	if len(name) > 0 && name[0] != "" {
-		group = name[0]
+func New(group ...string) (db DB, err error) {
+	groupName := configs.group
+	if len(group) > 0 && group[0] != "" {
+		groupName = group[0]
 	}
 	configs.RLock()
 	defer configs.RUnlock()
@@ -234,18 +300,20 @@ func New(name ...string) (db DB, err error) {
 	if len(configs.config) < 1 {
 		return nil, errors.New("empty database configuration")
 	}
-	if _, ok := configs.config[group]; ok {
-		if node, err := getConfigNodeByGroup(group, true); err == nil {
+	if _, ok := configs.config[groupName]; ok {
+		if node, err := getConfigNodeByGroup(groupName, true); err == nil {
 			c := &Core{
-				group:            group,
+				group:            groupName,
 				debug:            gtype.NewBool(),
 				cache:            gcache.New(),
 				schema:           gtype.NewString(),
 				dryrun:           gtype.NewBool(),
 				logger:           glog.New(),
 				prefix:           node.Prefix,
-				maxIdleConnCount: gDEFAULT_CONN_MAX_IDLE_COUNT,
-				maxConnLifetime:  gDEFAULT_CONN_MAX_LIFE_TIME, // Default max connection life time if user does not configure.
+				config:           node,
+				maxIdleConnCount: defaultMaxIdleConnCount,
+				maxOpenConnCount: defaultMaxOpenConnCount,
+				maxConnLifetime:  defaultMaxConnLifeTime, // Default max connection life time if user does not configure.
 			}
 			if v, ok := driverMap[node.Type]; ok {
 				c.DB, err = v.New(c, node)
@@ -260,7 +328,7 @@ func New(name ...string) (db DB, err error) {
 			return nil, err
 		}
 	} else {
-		return nil, errors.New(fmt.Sprintf(`database configuration node "%s" is not found`, group))
+		return nil, errors.New(fmt.Sprintf(`database configuration node "%s" is not found`, groupName))
 	}
 }
 
@@ -378,11 +446,11 @@ func (c *Core) getSqlDb(master bool, schema ...string) (sqlDb *sql.DB, err error
 		node = &n
 	}
 	// Cache the underlying connection pool object by node.
-	v := c.cache.GetOrSetFuncLock(node.String(), func() interface{} {
+	v, _ := internalCache.GetOrSetFuncLock(node.String(), func() (interface{}, error) {
 		sqlDb, err = c.DB.Open(node)
 		if err != nil {
 			intlog.Printf("DB open failed: %v, %+v", err, node)
-			return nil
+			return nil, err
 		}
 		if c.maxIdleConnCount > 0 {
 			sqlDb.SetMaxIdleConns(c.maxIdleConnCount)
@@ -401,7 +469,7 @@ func (c *Core) getSqlDb(master bool, schema ...string) (sqlDb *sql.DB, err error
 		} else if node.MaxConnLifetime > 0 {
 			sqlDb.SetConnMaxLifetime(node.MaxConnLifetime * time.Second)
 		}
-		return sqlDb
+		return sqlDb, nil
 	}, 0)
 	if v != nil && sqlDb == nil {
 		sqlDb = v.(*sql.DB)