Merge branch 'w51_MDL-37105_m25_catlimit' of git://github.com/skodak/…

…moodle
alseambusher · Jan 6, 2013 · 9fa3979 · 9fa3979
2 parents b33f3d7 + bb900d1
commit 9fa3979
Showing 1 changed file with 15 additions and 13 deletions.
diff --git a/lib/navigationlib.php b/lib/navigationlib.php
@@ -1663,19 +1663,21 @@ protected function load_all_categories($categoryid = self::LOAD_ROOT_CATEGORIES,
                     $categoryids[] = $category->key;
                 }
             }
-            list($categoriessql, $params) = $DB->get_in_or_equal($categoryids, SQL_PARAMS_NAMED);
-            $params['limit'] = (!empty($CFG->navcourselimit))?$CFG->navcourselimit:20;
-            $sql = "SELECT cc.id, COUNT(c.id) AS coursecount
-                      FROM {course_categories} cc
-                      JOIN {course} c ON c.category = cc.id
-                     WHERE cc.id {$categoriessql}
-                  GROUP BY cc.id
-                    HAVING COUNT(c.id) > :limit";
-            $excessivecategories = $DB->get_records_sql($sql, $params);
-            foreach ($categories as &$category) {
-                if (array_key_exists($category->key, $excessivecategories) && !$this->can_add_more_courses_to_category($category)) {
-                    $url = new moodle_url('/course/category.php', array('id'=>$category->key));
-                    $category->add(get_string('viewallcourses'), $url, self::TYPE_SETTING);
+            if ($categoryids) {
+                list($categoriessql, $params) = $DB->get_in_or_equal($categoryids, SQL_PARAMS_NAMED);
+                $params['limit'] = (!empty($CFG->navcourselimit))?$CFG->navcourselimit:20;
+                $sql = "SELECT cc.id, COUNT(c.id) AS coursecount
+                          FROM {course_categories} cc
+                          JOIN {course} c ON c.category = cc.id
+                         WHERE cc.id {$categoriessql}
+                      GROUP BY cc.id
+                        HAVING COUNT(c.id) > :limit";
+                $excessivecategories = $DB->get_records_sql($sql, $params);
+                foreach ($categories as &$category) {
+                    if (array_key_exists($category->key, $excessivecategories) && !$this->can_add_more_courses_to_category($category)) {
+                        $url = new moodle_url('/course/category.php', array('id'=>$category->key));
+                        $category->add(get_string('viewallcourses'), $url, self::TYPE_SETTING);
+                    }
                 }
             }
         }