public function SelectQuery::isNull

1 select.inc public SelectQuery::isNull($field)

Implements QueryConditionInterface::isNull().

Return value

SelectQuery:

Overrides QueryConditionInterface::isNull

File

core/includes/database/select.inc, line 1116

Class

SelectQuery: Query builder for SELECT statements.

Code

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