Albirew/nyaa-pantsu
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nyaa-pantsu/vendor/github.com/azhao12345/gorm/callback_save.go

100 lignes
3,2 Kio
Go
Brut Vue normale Historique

package gorm
import "reflect"
func beginTransactionCallback(scope *Scope) {
scope.Begin()
}
func commitOrRollbackTransactionCallback(scope *Scope) {
scope.CommitOrRollback()
}
func saveFieldAsAssociation(scope *Scope, field *Field) (bool, *Relationship) {
if scope.changeableField(field) && !field.IsBlank && !field.IsIgnored {
if value, ok := field.TagSettings["SAVE_ASSOCIATIONS"]; !ok || (value != "false" && value != "skip") {
if relationship := field.Relationship; relationship != nil {
return true, relationship
}
}
}
return false, nil
}
func saveBeforeAssociationsCallback(scope *Scope) {
if !scope.shouldSaveAssociations() {
return
}
for _, field := range scope.Fields() {
if ok, relationship := saveFieldAsAssociation(scope, field); ok && relationship.Kind == "belongs_to" {
fieldValue := field.Field.Addr().Interface()
scope.Err(scope.NewDB().Save(fieldValue).Error)
if len(relationship.ForeignFieldNames) != 0 {
// set value's foreign key
for idx, fieldName := range relationship.ForeignFieldNames {
associationForeignName := relationship.AssociationForeignDBNames[idx]
if foreignField, ok := scope.New(fieldValue).FieldByName(associationForeignName); ok {
scope.Err(scope.SetColumn(fieldName, foreignField.Field.Interface()))
}
}
}
}
}
}
func saveAfterAssociationsCallback(scope *Scope) {
if !scope.shouldSaveAssociations() {
return
}
for _, field := range scope.Fields() {
if ok, relationship := saveFieldAsAssociation(scope, field); ok &&
(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.FieldByName(associationForeignName); ok {
scope.Err(newScope.SetColumn(fieldName, f.Field.Interface()))
}
}
}
if relationship.PolymorphicType != "" {
scope.Err(newScope.SetColumn(relationship.PolymorphicType, relationship.PolymorphicValue))
}
scope.Err(newDB.Save(elem).Error)
if joinTableHandler := relationship.JoinTableHandler; joinTableHandler != nil {
scope.Err(joinTableHandler.Add(joinTableHandler, 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.FieldByName(associationForeignName); ok {
scope.Err(newScope.SetColumn(fieldName, f.Field.Interface()))
}
}
}
if relationship.PolymorphicType != "" {
scope.Err(newScope.SetColumn(relationship.PolymorphicType, relationship.PolymorphicValue))
}
scope.Err(scope.NewDB().Save(elem).Error)
}
}
}
}