一直在使用gorm
并且它太棒了,唯一的问题是嵌套preloading
它似乎只填充第一个结果,这是我的代码:
// Shoutbox msg is the db struct
type ShoutboxMsg struct {
gorm.Model
UserID int `sql:"index"`
User User
Message string
}
// User is the User table in the database
type User struct {
gorm.Model
Username string `sql:"not null;unique"`
Email string `sql:"not null;unique"`
PasswordHash string `sql:"not null;unique"`
UserLevel int `sql:"not null;default:0"`
Characters []Characters
MainPosts []ForumMainThreadsPosts
ReplyPosts []ForumMainPostsReplies
}
// Characters is a table in the database
type Characters struct {
gorm.Model
UserID int `sql:"index"`
CharacterName string `sql:"not null;unique"`
CharacterServer string `sql:"not null"`
CharacterLevel int `sql:"not null"`
CharacterMain bool `sql:"not null"`
CharacterClass string `sql:"not null"`
CharacterPic string `sql:"not null"`
CharacterSpec string `sql:"not null"`
CharacterCSSClass string `sql:"not null"`
CharacterTalentImg string `sql:"not null"`
}
然后我加载它:
msgs := []ShoutboxMsg{}
db.Preload("User").Preload("User.Characters").Find(&msgs)
但它只填充了第一个:
msgs[0].User.Characters
-
msgs[1].User.Characters
所有人都没有角色,但如果我这样做:
for i, msg := range msgs {
characters := []Characters{}
db.Model(msg.User).Related(&characters)
*(&msgs[i].User.Characters) = characters
}
这似乎工作正常,但Preload
不会超出第一个结果吗?
任何信息都会非常感谢。