public function SelectQuery::exists in Drupal 7

Sets a condition that the specified subquery returns values.

Parameters

SelectQueryInterface $select: The subquery that must contain results.

Return value

QueryConditionInterface The called object.

Overrides QueryConditionInterface::exists

File

includes/database/select.inc, line 1063

Class

SelectQuery

Query builder for SELECT statements.

Code

public function exists(SelectQueryInterface $select) {
  $this->where
    ->exists($select);
  return $this;
}