WithoutReturning set true, select panic

[ppanphper]

GORM Playground Link

https://github.com/go-gorm/playground/pull/1

Description

当设置 WithoutReturning = true

没有执行注册默认callback callbacks.RegisterDefaultCallbacks

select insert等操作会报panic

[ppanphper]

我目前的解决方式

[ppanphper]

可以学习一下mysql组件的写法

[a631807682]

~~Can you provide reproduction code? In fact, if not registered, the default clauses will be used. https://github.com/go-gorm/gorm/blob/master/callbacks/callbacks.go#L27~~ No need, I have reproduced.

[ppanphper]

当我设置WithoutReturning = true 同时使用Scan方法，会出现panic

[ppanphper]

postgresConfig := postgres.New(postgres.Config{ PreferSimpleProtocol: true, DSN: dsn, WithoutReturning: true, }) db, _ := gorm.Open(postgresConfig, &gorm.Config{}) var data = map[string]interface{}{} sql := select * from table where condition

db.Raw(sql).Scan(&data)

[ppanphper]

fns is nil

[a631807682]

After this https://github.com/go-gorm/gorm/commit/af3fbdc2fcfface01ce2a0795ee0fac3997ddc8e change, whether to support return is specified by the clauses, which means that we cannot support those that neither support returning (or the user does not want return), nor support database of LastInsertId

cc @jinzhu