forked from mirror/gorm
27 lines
478 B
Markdown
27 lines
478 B
Markdown
|
# Polymorphism
|
||
|
|
|
||
|
|
Supports polymorphic has-many and has-one associations.
|
||
|
|
|
||
|
|
```go
|
||
|
|
type Cat struct {
|
||
|
|
Id int
|
||
|
|
Name string
|
||
|
|
Toy Toy `gorm:"polymorphic:Owner;"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type Dog struct {
|
||
|
|
Id int
|
||
|
|
Name string
|
||
|
|
Toy Toy `gorm:"polymorphic:Owner;"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type Toy struct {
|
||
|
|
Id int
|
||
|
|
Name string
|
||
|
|
OwnerId int
|
||
|
|
OwnerType string
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
Note: polymorphic belongs-to and many-to-many are explicitly NOT supported, and will throw errors.
|