Fixed bug when copy a survey shows a fatal error - Refs #7847

main/survey/survey.lib.php

@@ -658,6 +658,7 @@ class SurveyManager
             unset($params['survey_id']);
             $params['session_id'] = api_get_session_id();
             $params['title'] = $params['title'] . ' ' . get_lang('Copy');
+            unset($params['iid']);
             Database::insert($table_survey, $params);
             $new_survey_id = Database::insert_id();
 
@@ -718,8 +719,7 @@ class SurveyManager
                 'survey_group_sec2' => $row['survey_group_sec2']
             );
             $insertId = Database::insert($table_survey_question, $params);
-
-            $sql = "UPDATE $table_survey_question SET id = iid WHERE iid = $insertId";
+            $sql = "UPDATE $table_survey_question SET question_id = iid WHERE iid = $insertId";
             Database::query($sql);
             
             $question_id[$row['question_id']] = $insertId;