alterColumn('{{%auth_assignments}}', 'user_id', $this->integer()->notNull()); $this->createIndex('{{%idx-auth_assignments-user_id}}', '{{%auth_assignments}}', 'user_id'); $this->addForeignKey('{{%fk-auth_assignments-user_id}}', '{{%auth_assignments}}', 'user_id', '{{%users}}', 'id', 'CASCADE'); } public function down() { $this->dropForeignKey('{{%fk-auth_assignments-user_id}}', '{{%auth_assignments}}'); $this->dropIndex('{{%idx-auth_assignments-user_id}}', '{{%auth_assignments}}'); $this->alterColumn('{{%auth_assignments}}', 'user_id', $this->string(64)->notNull()); } }