From 37f6995c9c85da164889e01049a331d06db90f0c Mon Sep 17 00:00:00 2001
From: Julio Montoya <gugli100@gmail.com>
Date: Fri, 30 Aug 2013 18:33:10 +0200
Subject: [PATCH] Blocking work list item for the student if he's not
 subscribed see BT#6615

---
 main/work/add_user.php | 10 +++++++++-
 main/work/work.lib.php | 22 ++++++++++++++++++++++
 main/work/work.php     |  2 ++
 3 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/main/work/add_user.php b/main/work/add_user.php
index dfcc43a5b4..eebca90fdf 100644
--- a/main/work/add_user.php
+++ b/main/work/add_user.php
@@ -45,7 +45,10 @@ $error_message = null;
 switch ($action) {
     case 'add':
 
-        addUserToWork($userId, $workId, api_get_course_int_id());
+        $data = getUserToWork($userId, $workId, api_get_course_int_id());
+        if (empty($data)) {
+            addUserToWork($userId, $workId, api_get_course_int_id());
+        }
         $url = api_get_path(WEB_CODE_PATH).'work/add_user.php?id='.$workId;
         header('Location: '.$url);
         exit;
@@ -66,10 +69,12 @@ Display :: display_header(null);
 echo Display::page_subheader(get_lang('UsersAdded'));
 
 $items = getAllUserToWork($workId, api_get_course_int_id());
+$usersAdded = array();
 if (!empty($items)) {
     echo '<div class="well">';
     foreach ($items as $data) {
         $myUserId = $data['user_id'];
+        $usersAdded[] = $myUserId;
         $userInfo = api_get_user_info($myUserId);
         $url = api_get_path(WEB_CODE_PATH).'work/add_user.php?action=delete&id='.$workId.'&user_id='.$myUserId;
         $link = Display::url(get_lang('Delete'), $url);
@@ -84,6 +89,9 @@ echo Display::page_subheader(get_lang('UserToAdd'));
 if (!empty($userList)) {
     echo '<div class="well">';
     foreach ($userList as $user) {
+        if (in_array($user['user_id'], $usersAdded)) {
+            continue;
+        }
         $userName = api_get_person_name($user['firstname'], $user['lastname']);
         $url = api_get_path(WEB_CODE_PATH).'work/add_user.php?action=add&id='.$workId.'&user_id='.$user['user_id'];
         $link = Display::url(get_lang('Add'), $url);
diff --git a/main/work/work.lib.php b/main/work/work.lib.php
index 0878978d9b..fb0db07fdc 100644
--- a/main/work/work.lib.php
+++ b/main/work/work.lib.php
@@ -493,6 +493,7 @@ function display_student_publications_list($id, $my_folder_data, $work_parents,
 
     $group_id = api_get_group_id();
 
+
 	if (is_array($work_parents)) {
 		foreach ($work_parents as $work_parent) {
 			$sql_select_directory = "SELECT
@@ -812,6 +813,16 @@ function display_student_publications_list($id, $my_folder_data, $work_parents,
                                  FROM $work_table w INNER JOIN $user_table u ON w.user_id = u.user_id
                                  WHERE w.c_id = $course_id AND w.parent_id = ".$work_data['id']." AND w.active IN (0, 1)";*/
 			} else {
+
+                if (ADD_DOCUMENT_TO_WORK) {
+                    $subscribedUsers = getAllUserToWork($work_data['id'], $course_id);
+                    if (!empty($subscribedUsers)) {
+                        if (!in_array(api_get_user_id(), $subscribedUsers)) {
+                            continue;
+                        }
+                    }
+                }
+
                 $cant_files = get_count_work($work_data['id'], api_get_user_id());
                 /*
                 $user_filter = "user_id = ".api_get_user_id()." AND ";
@@ -2216,6 +2227,15 @@ function getAllUserToWork($workId, $courseId)
     return Database::select('*', $table, array('where' => $params));
 }
 
+function userAddedToWork($userId, $workId, $courseId)
+{
+    /*$table = Database::get_course_table(TABLE_STUDENT_PUBLICATION_REL_USER);
+    $params = array(
+        'user_id = ? and work_id = ? and c_id = ?' => array($userId, $workId, $courseId)
+    );
+    $result = Database::select('count(*)', $table, array('where' => $params));*/
+}
+
 
 function deleteUserToWork($userId, $workId, $courseId)
 {
@@ -2226,3 +2246,5 @@ function deleteUserToWork($userId, $workId, $courseId)
     Database::delete($table, $params);
 }
 
+
+
diff --git a/main/work/work.php b/main/work/work.php
index cb027dd219..30c12ee7e3 100644
--- a/main/work/work.php
+++ b/main/work/work.php
@@ -788,6 +788,8 @@ switch ($action) {
             echo $table->toHtml();
             echo '</div>';
         } else {
+
+
             display_student_publications_list($work_id, $my_folder_data, $work_parents, $origin, $add_query, null);
         }