Implements QueryConditionInterface::exists().

Parameters

SelectQueryInterface $select: The subquery that must contain results.

Return value

QueryConditionInterface The called object.

Overrides QueryConditionInterface::exists

File

includes/database/query.inc, line 1800

Class

DatabaseCondition

Generic class for a series of conditions in a query.

Code

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

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