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-rw-r--r--includes/database/query.inc5
1 files changed, 1 insertions, 4 deletions
diff --git a/includes/database/query.inc b/includes/database/query.inc
index c77968767..9cdd8784e 100644
--- a/includes/database/query.inc
+++ b/includes/database/query.inc
@@ -1704,9 +1704,6 @@ class DatabaseCondition implements QueryConditionInterface, Countable {
if (is_array($value)) {
$operator = 'IN';
}
- elseif (!isset($value)) {
- $operator = 'IS NULL';
- }
else {
$operator = '=';
}
@@ -1740,7 +1737,7 @@ class DatabaseCondition implements QueryConditionInterface, Countable {
* Implements QueryConditionInterface::isNull().
*/
public function isNull($field) {
- return $this->condition($field);
+ return $this->condition($field, NULL, 'IS NULL');
}
/**