m170309_000006_relations.php
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<?php
use yii\db\Migration;
class m170309_000006_relations extends Migration
{
public function safeUp()
{
$this->addForeignKey(
'fk_page_lang_alias_id',
'page_lang',
'alias_id',
'alias',
'id',
'RESTRICT',
'CASCADE'
);
$this->addForeignKey(
'fk_page_lang_language_id',
'page_lang',
'language_id',
'language',
'id',
'CASCADE',
'CASCADE'
);
$this->addForeignKey(
'fk_page_lang_page_id',
'page_lang',
'page_id',
'page',
'id',
'CASCADE',
'CASCADE'
);
}
public function safeDown()
{
$this->dropForeignKey('fk_page_lang_alias_id', 'page_lang');
$this->dropForeignKey('fk_page_lang_language_id', 'page_lang');
$this->dropForeignKey('fk_page_lang_page_id', 'page_lang');
}
}