public function UpdateQuery::isNull in Drupal 7

Implements QueryConditionInterface::isNull().

Overrides QueryConditionInterface::isNull

File

includes/database/query.inc, line 1039

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

Class

UpdateQuery

General class for an abstracted UPDATE operation.

Code

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