public function SelectQueryInterface::orderBy

7.x select.inc public SelectQueryInterface::orderBy($field, $direction = 'ASC')

Orders the result set by a given field.

If called multiple times, the query will order by each specified field in the order this method is called.

If the query uses DISTINCT or GROUP BY conditions, fields or expressions that are used for the order must be selected to be compatible with some databases like PostgreSQL. The PostgreSQL driver can handle simple cases automatically but it is suggested to explicitly specify them. Additionally, when ordering on an alias, the alias must be added before orderBy() is called.

Parameters

$field: The field on which to order.

$direction: The direction to sort. Legal values are "ASC" and "DESC".

Return value

SelectQueryInterface The called object.

2 methods override SelectQueryInterface::orderBy()
SelectQuery::orderBy in drupal/includes/database/select.inc
Orders the result set by a given field.
SelectQueryExtender::orderBy in drupal/includes/database/select.inc
Orders the result set by a given field.

File

drupal/includes/database/select.inc, line 384

Class

SelectQueryInterface
Interface definition for a Select Query object.

Code

public function orderBy($field, $direction = 'ASC');