Gorm How to create association with embedded struct used?

Your Question

Gorm will not create foreign key if the relation field is embedded

type TestA struct {
    ID   uint `gorm:"primaryKey"`
    Name string
    //Bs   []TestB `gorm:"foreignKey:TestAID;references:ID"`
    C TestC `gorm:"embedded"`
}

type TestC struct {
    Bs []TestB `gorm:"foreignKey:TestAID;references:ID"`
}

type TestB struct {
    ID      uint `gorm:"primaryKey"`
    TestAID uint `gorm:"foreignKey:TestAID;references:ID"`
    Weight  int
}

And because of this, gorm won't add a relationship to TestB in this case: https://github.com/go-gorm/gorm/blob/9d82aa56734999bb28e0c4d60fba69ae7cde66d5/schema/relationship.go#L95-L96

Why we need this special judge?

PS: i noticed that someone has mentioned this problem before #5816

The document you expected this should be explained

Expected answer

How to create foreign key for an embedded struct? Or Is there any other methods to create a foreign key?

Comment From: a631807682

refer to https://github.com/go-gorm/gorm/issues/6751#issuecomment-1871839537