/**
* Execute a complex manipulation on the database.
* A manipulation is an array of insert / or update sequences. The keys of the array are table names,
* and the values are map containing 'command' and 'fields'. Command should be 'insert' or 'update',
* and fields should be a map of field names to field values, including quotes. The field value can
* also be a SQL function or similar.
* @param array $manipulation
*/
static function manipulate($manipulation)
{
DB::$lastQuery = $manipulation;
return DB::$globalConn->manipulate($manipulation);
}
