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<?php
use yii\db\Migration;
/**
* Class m180220_101910_add_owners_albums_foreign_keys
*/
class m180220_101910_add_owners_albums_foreign_keys extends Migration
{
* {@inheritdoc}
public function safeUp()
$this->createIndex(
'idx-owners_albums-albumId',
'owners_albums',
'albumId'
);
$this->addForeignKey(
'fk-owners_albums-albumId',
'albumId',
'albums',
'id',
'CASCADE',
'CASCADE'
}
public function safeDown()
$this->dropForeignKey(
'owners_albums'
$this->dropIndex(