Fix query for exercise categories in exerciseGrid() - refs BT#16036

6 years ago · 0a353bdee6
parent b3c548530d
commit 0a353bdee6
1 changed files with 5 additions and 1 deletions
--- a/main/exercise/exercise.class.php
+++ b/main/exercise/exercise.class.php
@ -8417,7 +8417,11 @@ class Exercise
        $categoryCondition = '';
        $categoryId = (int) $categoryId;
        if (api_get_configuration_value('allow_exercise_categories')) {
-            $categoryCondition = " AND exercise_category_id = $categoryId ";
+            if (!empty($categoryId)) {
+                $categoryCondition = " AND exercise_category_id = $categoryId ";
+            } else {
+                $categoryCondition = " AND exercise_category_id IS NULL ";
+            }
        }

        $keywordCondition = '';