我是ORM(和GORM)的新手，如果这是一个明显的问题，我深表歉意，但文档中似乎没有涉及到这一点.
我将以examples from the documentation分为基础回答我的问题
问题1:属于
// `User` belongs to `Company`, `CompanyID` is the foreign key
type User struct {
gorm.Model
Name string
CompanyID int
Company Company
}
type Company struct {
ID int
Name string
}
-
User只属于一个Company→ 这是由代码处理的 -
Company有很多User→ is this implied by the code above?或者我应该以某种方式在Company中添加一个关系O2M？
问题2:有很多
// User has many CreditCards, UserID is the foreign key
type User struct {
gorm.Model
CreditCards []CreditCard
}
type CreditCard struct {
gorm.Model
Number string
UserID uint
}
-
User等于1+CreditCard→ 这是由代码处理的 - A
CreditCardcan belong to several users (say, a shared family CC) → is it implied? (if not: how to set up the O2M relationship).
Or is it, instead, a case where aCreditCardis explicitly configured to belong to only one user?