public function MergeQuery::isNull

Implements QueryConditionInterface::isNull().

Overrides QueryConditionInterface::isNull

File

drupal/includes/database/query.inc, line 1531

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

Class

MergeQuery

General class for an abstracted MERGE query operation.

Code

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