MDL-56864 forms: allow to remove last tag with forced standard tags

2017-11-21 15:29:08 +08:00
parent 58394a6223
commit 3eeca45c23
1 changed files with 5 additions and 1 deletions
@@ -244,7 +244,11 @@ class MoodleQuickForm_tags extends MoodleQuickForm_autocomplete {
     */
    public function exportValue(&$submitValues, $assoc = false) {
        if (!$this->is_tagging_enabled()) {
-            return $assoc ? array($this->getName() => array()) : array();
+            return $this->_prepareValue([], $assoc);
+        }
+        if ($this->_findValue($submitValues) === '_qf__force_multiselect_submission') {
+            // Nothing was selected.
+            return $this->_prepareValue([], $assoc);
        }

        return parent::exportValue($submitValues, $assoc);