mirror of https://github.com/go-gorm/gorm.git
92 lines
3.0 KiB
Go
92 lines
3.0 KiB
Go
package gorm
|
|
|
|
import "reflect"
|
|
|
|
func BeginTransaction(scope *Scope) {
|
|
scope.Begin()
|
|
}
|
|
|
|
func CommitOrRollbackTransaction(scope *Scope) {
|
|
scope.CommitOrRollback()
|
|
}
|
|
|
|
func SaveBeforeAssociations(scope *Scope) {
|
|
if !scope.shouldSaveAssociations() {
|
|
return
|
|
}
|
|
for _, field := range scope.Fields() {
|
|
if scope.changeableField(field) && !field.IsBlank && !field.IsIgnored {
|
|
if relationship := field.Relationship; relationship != nil && relationship.Kind == "belongs_to" {
|
|
value := field.Field
|
|
scope.Err(scope.NewDB().Save(value.Addr().Interface()).Error)
|
|
if len(relationship.ForeignFieldNames) != 0 {
|
|
for idx, fieldName := range relationship.ForeignFieldNames {
|
|
associationForeignName := relationship.AssociationForeignDBNames[idx]
|
|
if f, ok := scope.New(value.Addr().Interface()).FieldByName(associationForeignName); ok {
|
|
scope.Err(scope.SetColumn(fieldName, f.Field.Interface()))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func SaveAfterAssociations(scope *Scope) {
|
|
if !scope.shouldSaveAssociations() {
|
|
return
|
|
}
|
|
for _, field := range scope.Fields() {
|
|
if scope.changeableField(field) && !field.IsBlank && !field.IsIgnored {
|
|
if relationship := field.Relationship; relationship != nil &&
|
|
(relationship.Kind == "has_one" || relationship.Kind == "has_many" || relationship.Kind == "many_to_many") {
|
|
value := field.Field
|
|
|
|
switch value.Kind() {
|
|
case reflect.Slice:
|
|
for i := 0; i < value.Len(); i++ {
|
|
newDB := scope.NewDB()
|
|
elem := value.Index(i).Addr().Interface()
|
|
newScope := newDB.NewScope(elem)
|
|
|
|
if relationship.JoinTableHandler == nil && len(relationship.ForeignFieldNames) != 0 {
|
|
for idx, fieldName := range relationship.ForeignFieldNames {
|
|
associationForeignName := relationship.AssociationForeignDBNames[idx]
|
|
if f, ok := scope.New(value.Addr().Interface()).FieldByName(associationForeignName); ok {
|
|
scope.Err(scope.SetColumn(fieldName, f.Field.Interface()))
|
|
}
|
|
}
|
|
}
|
|
|
|
if relationship.PolymorphicType != "" {
|
|
scope.Err(newScope.SetColumn(relationship.PolymorphicType, scope.TableName()))
|
|
}
|
|
|
|
scope.Err(newDB.Save(elem).Error)
|
|
|
|
if joinTableHandler := relationship.JoinTableHandler; joinTableHandler != nil {
|
|
scope.Err(joinTableHandler.Add(joinTableHandler, scope.NewDB(), scope.Value, newScope.Value))
|
|
}
|
|
}
|
|
default:
|
|
elem := value.Addr().Interface()
|
|
newScope := scope.New(elem)
|
|
if len(relationship.ForeignFieldNames) != 0 {
|
|
for idx, fieldName := range relationship.ForeignFieldNames {
|
|
associationForeignName := relationship.AssociationForeignDBNames[idx]
|
|
if f, ok := scope.New(value.Addr().Interface()).FieldByName(associationForeignName); ok {
|
|
scope.Err(scope.SetColumn(fieldName, f.Field.Interface()))
|
|
}
|
|
}
|
|
}
|
|
|
|
if relationship.PolymorphicType != "" {
|
|
scope.Err(newScope.SetColumn(relationship.PolymorphicType, scope.TableName()))
|
|
}
|
|
scope.Err(scope.NewDB().Save(elem).Error)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|