improve model feature

.example/frame/main/model/config.toml

@@ -0,0 +1,4 @@
+
+# MySQL数据库配置
+[database]
+    link = "mysql:root:12345678@tcp(127.0.0.1:3306)/test"

.example/frame/main/model/model1.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"github.com/gogf/gf/.example/frame/mvc/model/test"
+	"github.com/gogf/gf/frame/g"
+)
+
+func main() {
+	g.DB().SetDebug(true)
+	user, err := test.ModelUser().One()
+	g.Dump(err)
+	g.Dump(user)
+	user.Password = "1"
+	g.Dump(user.Update())
+}

.example/frame/mvc/model/test/init.go

@@ -0,0 +1,10 @@
+package test
+
+import (
+	"github.com/gogf/gf/database/gdb"
+	"github.com/gogf/gf/frame/g"
+)
+
+func DB() gdb.DB {
+	return g.DB()
+}

.example/frame/mvc/model/test/user.go

@@ -0,0 +1,81 @@
+package test
+
+import (
+	"database/sql"
+
+	"github.com/gogf/gf/debug/gdebug"
+	"github.com/gogf/gf/frame/gins"
+
+	"github.com/gogf/gf/database/gdb"
+	"github.com/gogf/gf/os/gtime"
+)
+
+type User struct {
+	Id         int         `orm:"id,primary"  json:"id"`
+	Passport   string      `orm:"passport"    json:"passport"`
+	Password   string      `orm:"password"    json:"password"`
+	NickName   string      `orm:"nickname"    json:"nick_name"`
+	CreateTime *gtime.Time `orm:"create_time" json:"create_time"`
+}
+
+type UserModel struct {
+	*gdb.Model
+	TableName string
+}
+
+var (
+	UserTableName      = "user"
+	gUserModelCacheKey = gdebug.CallerFilePath()
+)
+
+func ModelUser() *UserModel {
+	return gins.GetOrSetFunc(gUserModelCacheKey, func() interface{} {
+		return &UserModel{
+			DB().Table(UserTableName).Safe(),
+			UserTableName,
+		}
+	}).(*UserModel)
+}
+
+func (r *User) Insert() (result sql.Result, err error) {
+	return ModelUser().Data(r).Insert()
+}
+
+func (r *User) Replace() (result sql.Result, err error) {
+	return ModelUser().Data(r).Replace()
+}
+
+func (r *User) Save() (result sql.Result, err error) {
+	return ModelUser().Data(r).Save()
+}
+
+func (r *User) Update() (result sql.Result, err error) {
+	return ModelUser().Data(r).Where(gdb.GetWhereConditionOfStruct(r)).Update()
+}
+
+func (r *User) Delete() (result sql.Result, err error) {
+	return ModelUser().Where(gdb.GetWhereConditionOfStruct(r)).Delete()
+}
+
+func (m *UserModel) Select() ([]*User, error) {
+	return m.All()
+}
+
+func (m *UserModel) All() ([]*User, error) {
+	array := ([]*User)(nil)
+	if err := m.Scan(&array); err != nil {
+		return nil, err
+	}
+	return array, nil
+}
+
+func (m *UserModel) One() (*User, error) {
+	list, err := m.All()
+	if err != nil {
+		return nil, err
+	}
+	if len(list) > 0 {
+		return list[0], nil
+	}
+	return nil, nil
+}