protected function deleteMigrations(array $migrations)
	{
		if ( !$migrations ) {
			return;
		}

		$sql = 'DELETE FROM Migrations
				WHERE Name IN (:names)';
		$this->_context->getDatabase()->perform($sql, array('names' => $migrations));
	}
protected function deleteMigrations(array $migrations)
	{
		if ( !$migrations ) {
			return;
		}

		$sql = 'DELETE FROM Migrations
				WHERE Name IN (:names)';
		$this->_context->getDatabase()->perform($sql, array('names' => $migrations));
	}
protected function deleteMigrations ( array $ migrations ) { if ( ! $ migrations ) { return ; } $ sql = 'DELETE FROM Migrations
				WHERE Name IN (:names)' ; $ this -> _context -> getDatabase ( ) -> perform ( $ sql , array ( 'names' => $ migrations ) ) ; }
Deletes migrations.

@param array $migrations Migrations.

@return void
Deletes migrations .