public function DatabaseCondition::exists in Drupal 7

Implements QueryConditionInterface::exists().

Overrides QueryConditionInterface::exists

File

includes/database/query.inc, line 1761

Non-specific Database query code. Used by all engines.

Class

DatabaseCondition

Generic class for a series of conditions in a query.

Code

public function exists(SelectQueryInterface $select) {
  return $this
    ->condition('', $select, 'EXISTS');
}