60 lines
1.3 KiB
Markdown
60 lines
1.3 KiB
Markdown
## Object
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对 object 操作的三个方法 Insert / Update / Delete
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```go
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o := orm.NewOrm()
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user := NewUser()
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user.UserName = "slene"
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user.Password = "password"
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user.Email = "vslene@gmail.com"
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obj := o.Object(user)
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fmt.Println(obj.Insert())
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user.UserName = "Your"
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fmt.Println(obj.Update())
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fmt.Println(obj.Delete())
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```
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### Read
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```go
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var user User
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err := o.QueryTable("user").Filter("id", 1).One(&user)
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if err != orm.ErrMultiRows {
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fmt.Println(user.UserName)
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}
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```
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### Create
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```go
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profile := NewProfile()
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profile.Age = 30
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profile.Money = 9.8
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user := NewUser()
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user.Profile = profile
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user.UserName = "slene"
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user.Password = "password"
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user.Email = "vslene@gmail.com"
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user.IsActive = true
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fmt.Println(o.Object(profile).Insert())
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fmt.Println(o.Object(user).Insert())
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fmt.Println(user.Id)
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```
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创建后会自动对 auto 的 field 赋值
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### Update
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```go
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var user User
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err := o.QueryTable("user").Filter("id", 1).One(&user)
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if err != orm.ErrMultiRows {
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fmt.Println(user.UserName)
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}
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user.UserName = "MyName"
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o.Object(&user).Update()
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```
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### Delete
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```go
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o.Object(user).Delete()
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```
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Delete 操作会对反向关系进行操作，此例中 Post 拥有一个到 User 的外键。删除 User 的时候。如果 on_delete 设置为默认的级联操作，将删除对应的 Post
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删除以后会清除 auto field 的值
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