public function DeleteQuery::isNull

1.20.x query.inc public DeleteQuery::isNull($field)

Implements QueryConditionInterface::isNull().

Return value

DeleteQuery:

Overrides QueryConditionInterface::isNull

File

includes/database/query.inc, line 788: Non-specific Database query code. Used by all engines.

Class

DeleteQuery: General class for an abstracted DELETE operation.

Code

public function isNull($field) {
  $this->condition->isNull($field);
  return $this;
}