zh docs update

orm/docs/zh/README.md

@@ -18,18 +18,9 @@ type User struct {
 	orm.Manager
 }
 
-type Post struct {
-	Id      int    `orm:"auto"`
-	User    *User  `orm:"rel(fk)"`
-	Title   string `orm:"size(100)"`
-	Content string
-	orm.Manager
-}
-
 func init() {
 	// 将表定义注册到 orm 里
 	orm.RegisterModel(new(User))
-	orm.RegisterModel(new(Post))
 
 	// 链接参数设置
 	orm.RegisterDataBase("default", "mysql", "root:root@/my_db?charset=utf8", 30)
@@ -40,39 +31,24 @@ func main() {
 
 	o := orm.NewOrm()
 
-	var user User
-	obj := o.Object(&user)
+	user := User{Name: "slene"}
 
 	// 创建
-	user.Name = "slene"
-	id, err := obj.Insert()
+	id, err := o.Insert(&user)
 	fmt.Println(id, err)
 
 	// 更新
 	user.Name = "astaxie"
-	num, err := obj.Update()
+	num, err := o.Update(&user)
 	fmt.Println(num, err)
 
 	// 查询单个
-	var u User
-	err = o.QueryTable("user").Filter("id", &user).One(&u)
-	fmt.Println(u.Id, u.Name, err)
-
-	// 创建 post
-	var post Post
-	post.Title = "beego orm"
-	post.Content = "powerful amazing"
-	post.User = &u
-	id, err = o.Object(&post).Insert()
-	fmt.Println(id, err)
-	
-	// 当然，以 map[string]interface{} 形式的数据返回也是允许的
-	var maps []orm.Params
-	num, err = o.QueryTable("user").Filter("id", &u).Values(&maps)
-	fmt.Println(num, err, maps[0])
+	u := User{Id: user.Id}
+	err = o.Read(&u)
+	fmt.Println(u.Name, err)
 
 	// 删除
-	num, err = obj.Delete() // 默认，级联删除 user 以及关系存在的 post
+	num, err = o.Delete(&u)
 	fmt.Println(num, err)
 }
 ```