public function SelectQueryExtender::exists

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

core/includes/database/select.inc, line 815

Class

SelectQueryExtender

The base extender class for Select queries.

Code

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