m170831_094035_comment_add_foreogn_key.php
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<?php
use yii\db\Migration;
class m170831_094035_comment_add_foreogn_key extends Migration
{
public function safeUp()
{
$this->addForeignKey('comment_customer',
'artbox_comment',
'customer_id',
'customer',
'id',
'CASCADE',
'CASCADE');
}
public function safeDown()
{
$this->dropForeignKey('comment_customer', 'artbox_comment');
}
/*
// Use up()/down() to run migration code without a transaction.
public function up()
{
}
public function down()
{
echo "m170831_094035_comment_add_foreogn_key cannot be reverted.\n";
return false;
}
*/
}