From c649b13798c598468ff20823a136748451a98bb5 Mon Sep 17 00:00:00 2001
From: Julio Montoya <gugli100@gmail.com>
Date: Tue, 22 Jan 2013 14:32:39 +0100
Subject: [PATCH] Removing survey invitation data see  #5847

---
 main/inc/lib/usermanager.lib.php | 11 +++++++----
 main/survey/survey.lib.php       | 18 ++++++++++++++----
 2 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/main/inc/lib/usermanager.lib.php b/main/inc/lib/usermanager.lib.php
index 3656370444..56145b3a09 100644
--- a/main/inc/lib/usermanager.lib.php
+++ b/main/inc/lib/usermanager.lib.php
@@ -270,7 +270,7 @@ class UserManager
         $table_user = Database :: get_main_table(TABLE_MAIN_USER);
         $usergroup_rel_user = Database :: get_main_table(TABLE_USERGROUP_REL_USER);
         $table_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
-        $table_class_user = Database :: get_main_table(TABLE_MAIN_CLASS_USER);
+        //$table_class_user = Database :: get_main_table(TABLE_MAIN_CLASS_USER);
         $table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
         $table_admin = Database :: get_main_table(TABLE_MAIN_ADMIN);
         $table_session_user = Database :: get_main_table(TABLE_MAIN_SESSION_USER);
@@ -339,10 +339,9 @@ class UserManager
         $sql = 'DELETE FROM '.$gradebook_results_table.' WHERE user_id = '.$user_id;
         Database::query($sql);
 
-        $user = Database::fetch_array($res);
         $t_ufv = Database::get_main_table(TABLE_MAIN_USER_FIELD_VALUES);
         $sqlv = "DELETE FROM $t_ufv WHERE user_id = $user_id";
-        $resv = Database::query($sqlv);
+        Database::query($sqlv);
 
         require_once api_get_path(LIBRARY_PATH).'urlmanager.lib.php';
         if (api_get_multiple_access_url()) {
@@ -367,9 +366,13 @@ class UserManager
             //Delete user from friend lists
             SocialManager::remove_user_rel_user($user_id, true);
         }
+
+        //Removing survey invitation
+        survey_manager::delete_all_survey_invitations_by_user($user_id);
+
         // Delete students works
         $sqlw = "DELETE FROM $table_work WHERE user_id = $user_id";
-        $resw = Database::query($sqlw);
+        Database::query($sqlw);
         unset($sqlw);
         // Add event to system log
         $user_id_manager = api_get_user_id();
diff --git a/main/survey/survey.lib.php b/main/survey/survey.lib.php
index e5bd8bcdb2..661c81df51 100644
--- a/main/survey/survey.lib.php
+++ b/main/survey/survey.lib.php
@@ -1,6 +1,8 @@
 <?php
 /* For licensing terms, see /license.txt */
 /**
+ * Survey manager class
+ *
  * @package chamilo.survey
  * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University: cleanup, refactoring and rewriting large parts (if not all) of the code
  * @author Julio Montoya Armas <gugli100@gmail.com>, Chamilo: Personality Test modification and rewriting large parts of the code
@@ -21,12 +23,20 @@ $htmlHeadXtra[] = '<script>
 		  setFocus();
 		});
 </script>';
-/**
- * Survey manager class
- * @package chamilo.survey
- */
+
 class survey_manager {
 
+    public static function delete_all_survey_invitations_by_user($user_id) {
+        $user_id = intval($user_id);
+
+        if (empty($user_id)) {
+            return false;
+        }
+        $table_survey_invitation = Database :: get_course_table(TABLE_SURVEY_INVITATION);
+		$sql = "DELETE FROM $table_survey_invitation WHERE user = '$user_id'";
+		Database::query($sql);
+    }
+
     public static function get_surveys($course_code, $session_id = 0) {
         $table_survey = Database :: get_course_table(TABLE_SURVEY);
         $course_info = api_get_course_info($course_code);