[2.7] [WIP] Fix for #14583

phansys · phansys · commit e1497e743e6d · 2015-05-24T11:56:38.000-03:00
| Q | A | ------------- | --- | Bug fix? | yes | New feature? | no | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #14583 | License | MIT | Doc PR | Fixes #14583.
diff --git a/src/Symfony/Bridge/Doctrine/Form/ChoiceList/DoctrineChoiceLoader.php b/src/Symfony/Bridge/Doctrine/Form/ChoiceList/DoctrineChoiceLoader.php
@@ -134,6 +134,9 @@ public function loadValuesForChoices(array $choices, $value = null)
      */
     public function loadChoicesForValues(array $values, $value = null)
     {
+        // Filters empty values in order to avoid generation of clauses like
+        // "WHERE id IN ("")
+        $values = array_diff($values, array(''));
         // Performance optimization
         // Also prevents the generation of "WHERE id IN ()" queries through the
         // object loader. At least with MySQL and on the development machine
