public function DatabaseCondition::isNull in Drupal 7

Implements QueryConditionInterface::isNull().

Overrides QueryConditionInterface::isNull

File

includes/database/query.inc, line 1747

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

Class

DatabaseCondition

Generic class for a series of conditions in a query.

Code

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