chamilo / chamilo-lms

main/inc/lib/tracking.lib.php

Doc Comments +13 added lines, -7 removed lines

@@ -1287,6 +1287,8 @@ 
      * @param   string type of time filter: 'last_week' or 'custom'
      * @param   string  start date date('Y-m-d H:i:s')
      * @param   string  end date date('Y-m-d H:i:s')
+     * @param string $start_date
+     * @param string $end_date
      * @return timestamp $nb_seconds
      */
     public static function get_time_spent_on_the_platform(
@@ -1390,7 +1392,7 @@ 
      * Get first connection date for a student
      * @param    int $student_id
      *
-     * @return    string|bool Date format long without day or false if there are no connections
+     * @return    string|false Date format long without day or false if there are no connections
      */
     public static function get_first_connection_date($student_id)
     {
@@ -1420,7 +1422,7 @@ 
      * @param int $student_id
      * @param bool $warning_message Show a warning message (optional)
      * @param bool $return_timestamp True for returning results in timestamp (optional)
-     * @return string|int|bool Date format long without day, false if there are no connections or
+     * @return string Date format long without day, false if there are no connections or
      * timestamp if parameter $return_timestamp is true
      */
     public static function get_last_connection_date($student_id, $warning_message = false, $return_timestamp = false)
@@ -2667,6 +2669,9 @@ 
      * @param     array         Limit average to listed lp ids
      * @param     int            Session id (optional), if param $session_id is
      * null(default) it'll return results including sessions, 0 = session is not filtered
+     * @param integer $student_id
+     * @param string $course_code
+     * @param integer $session_id
      * @return     int         Total time
      */
     public static function get_time_spent_in_lp($student_id, $course_code, $lp_ids = array(), $session_id = null)
@@ -2733,6 +2738,8 @@ 
      * @param     int|array    Student id(s)
      * @param     string         Course code
      * @param     int         Learning path id
+     * @param integer $student_id
+     * @param string $course_code
      * @return     int         Total time
      */
     public static function get_last_connection_time_in_lp($student_id, $course_code, $lp_id, $session_id = 0)
@@ -5400,7 +5407,7 @@ 
 
     /**
     * @param FormValidator $form
-    * @return mixed
+    * @return FormValidator
     */
     public static function setUserSearchForm($form)
     {
@@ -5439,7 +5446,6 @@ 
      * @param   int $sessionId  The session ID (session.id)
      * @param   int $courseId   The course ID (course.id)
      * @param   int $exerciseId The quiz ID (c_quiz.id)
-     * @param   int $answer     The answer status (0 = incorrect, 1 = correct, 2 = both)
      * @param   array   $options    An array of options you can pass to the query (limit, where and order)
      * @return array An array with the data of exercise(s) progress
      */
@@ -6876,7 +6882,7 @@ 
      * @param int $user_id
      * @param int $course_id
      * @param int $session_id
-     * @return array
+     * @return string[]
      */
     public function display_login_tracking_info($view, $user_id, $course_id, $session_id = 0)
     {
@@ -6922,9 +6928,9 @@ 
     /**
      * Displays the exercise results for a specific user in a specific course.
      * @param   string $view
-     * @param   int $user_id    User ID
+     * @param   int $userId    User ID
      * @param   string  $courseCode Course code
-     * @return array
+     * @return string[]
      * @todo remove globals
      */
     public function display_exercise_tracking_info($view, $userId, $courseCode)

main/inc/lib/usergroup.lib.php

Doc Comments +12 added lines, -6 removed lines

@@ -1013,7 +1013,7 @@ 
      * @param int    $groupId
      * @param string $picture
      *
-     * @return bool|string
+     * @return false|string
      */
     public function manageFileUpload($groupId, $picture)
     {
@@ -1155,7 +1155,7 @@ 
     }
 
     /**
-     * @return mixed
+     * @return integer
      */
     public function getGroupType()
     {
@@ -1359,6 +1359,8 @@ 
      * @param string height
      * @param string picture size it can be small_,  medium_  or  big_
      * @param string style css
+     * @param integer $height
+     * @param integer $size_picture
      * @return array with the file and the style of an image i.e $array['file'] $array['style']
      */
     public function get_picture_group($id, $picture_file, $height, $size_picture = GROUP_IMAGE_SIZE_MEDIUM , $style = '')
@@ -1420,7 +1422,7 @@ 
      * @param	string	Type of path to return (can be 'none', 'system', 'rel', 'web')
      * @param	bool	Whether we want to have the directory name returned 'as if' there was a file or not (in the case we want to know which directory to create - otherwise no file means no split subdir)
      * @param	bool	If we want that the function returns the /main/img/unknown.jpg image set it at true
-     * @return	array 	Array of 2 elements: 'dir' and 'file' which contain the dir and file as the name implies if image does not exist it will return the unknow image if anonymous parameter is true if not it returns an empty er's
+     * @return	integer 	Array of 2 elements: 'dir' and 'file' which contain the dir and file as the name implies if image does not exist it will return the unknow image if anonymous parameter is true if not it returns an empty er's
      */
     public function get_group_picture_path_by_id($id, $type = 'none', $preview = false, $anonymous = false)
     {
@@ -1473,7 +1475,7 @@ 
     }
 
     /**
-     * @return array
+     * @return string[]
      */
     public function getAllowedPictureExtensions()
     {
@@ -1663,7 +1665,7 @@ 
      * @author Julio Montoya
      * @param  int  $user_id
      * @param  int $group_id
-     * @return boolean true if success
+     * @return Statement|null true if success
      * */
     public function delete_user_rel_group($user_id, $group_id)
     {
@@ -1875,6 +1877,8 @@ 
      * @param int from value
      * @param int limit
      * @param array image configuration, i.e array('height'=>'20px', 'size'=> '20px')
+     * @param integer $from
+     * @param integer $limit
      * @return array list of users in a group
      */
     public function get_users_by_group(
@@ -1973,6 +1977,8 @@ 
      * Shows the left column of the group page
      * @param int group id
      * @param int user id
+     * @param integer $group_id
+     * @param integer $user_id
      *
      */
     public function show_group_column_information($group_id, $user_id, $show = '')
@@ -2326,7 +2332,7 @@ 
      * @param int $group_id
      * @param int $parent_group_id if 0, we delete the parent_group association
      * @param int $relation_type
-     * @return resource
+     * @return Statement|null
      **/
     public static function set_parent_group($group_id, $parent_group_id, $relation_type = 1)
     {

Spacing +63 added lines, -63 removed lines

@@ -81,7 +81,7 @@ 
             ";
             $result = Database::query($sql);
             if (Database::num_rows($result)) {
-                $row  = Database::fetch_array($result);
+                $row = Database::fetch_array($result);
 
                 return $row['count'];
             }
@@ -101,7 +101,7 @@ 
             ";
             $result = Database::query($sql);
             if (Database::num_rows($result)) {
-                $row  = Database::fetch_array($result);
+                $row = Database::fetch_array($result);
                 return $row['count'];
             }
         }
@@ -126,7 +126,7 @@ 
             ";
             $result = Database::query($sql);
             if (Database::num_rows($result)) {
-                $row  = Database::fetch_array($result);
+                $row = Database::fetch_array($result);
                 return $row['count'];
             }
 
@@ -147,7 +147,7 @@ 
             ";
             $result = Database::query($sql);
             if (Database::num_rows($result)) {
-                $row  = Database::fetch_array($result);
+                $row = Database::fetch_array($result);
                 return $row['count'];
             }
 
@@ -528,13 +528,13 @@ 
                 INNER JOIN {$this->table} g
                 ON (u.usergroup_id = g.id)
                 ";
-            $where =  array('where' => array('user_id = ? AND access_url_id = ? ' => array($userId, $urlId)));
+            $where = array('where' => array('user_id = ? AND access_url_id = ? ' => array($userId, $urlId)));
         } else {
             $from = $this->usergroup_rel_user_table." u
                 INNER JOIN {$this->table} g
                 ON (u.usergroup_id = g.id)
                 ";
-            $where =  array('where' => array('user_id = ?' => $userId));
+            $where = array('where' => array('user_id = ?' => $userId));
         }
 
         if ($filterByType !== null) {
@@ -567,10 +567,10 @@ 
             $urlId = api_get_current_access_url_id();
             $from = $this->usergroup_rel_user_table." u
                     INNER JOIN {$this->access_url_rel_usergroup} a ON (a.usergroup_id AND u.usergroup_id)";
-            $where =  array('where' => array('user_id = ? AND access_url_id = ? ' => array($userId, $urlId)));
+            $where = array('where' => array('user_id = ? AND access_url_id = ? ' => array($userId, $urlId)));
         } else {
             $from = $this->usergroup_rel_user_table." u ";
-            $where =  array('where' => array('user_id = ?' => $userId));
+            $where = array('where' => array('user_id = ?' => $userId));
         }
 
         $results = Database::select(
@@ -856,7 +856,7 @@ 
             }
             $result = $new_result;
         }
-        $columns = array('name', 'users', 'courses','sessions', 'group_type');
+        $columns = array('name', 'users', 'courses', 'sessions', 'group_type');
 
         if (!in_array($sidx, $columns)) {
             $sidx = 'name';
@@ -1260,7 +1260,7 @@ 
                 }
             }
         }
-        $response->addAssign('ajax_list_courses','innerHTML', api_utf8_encode($return));
+        $response->addAssign('ajax_list_courses', 'innerHTML', api_utf8_encode($return));
 
         return $response;
     }
@@ -1367,7 +1367,7 @@ 
      * @param string style css
      * @return array with the file and the style of an image i.e $array['file'] $array['style']
      */
-    public function get_picture_group($id, $picture_file, $height, $size_picture = GROUP_IMAGE_SIZE_MEDIUM , $style = '')
+    public function get_picture_group($id, $picture_file, $height, $size_picture = GROUP_IMAGE_SIZE_MEDIUM, $style = '')
     {
         $picture = array();
         $picture['style'] = $style;
@@ -1480,7 +1480,7 @@ 
      */
     public function getAllowedPictureExtensions()
     {
-        return $allowed_picture_types = array ('jpg', 'jpeg', 'png', 'gif');
+        return $allowed_picture_types = array('jpg', 'jpeg', 'png', 'gif');
     }
 
     /**
@@ -1514,7 +1514,7 @@ 
         if (empty($user_id)) {
             $user_id = api_get_user_id();
         }
-        $user_role	= $this->get_user_group_role($user_id, $group_id);
+        $user_role = $this->get_user_group_role($user_id, $group_id);
         if (in_array($user_role, array(GROUP_USER_PERMISSION_ADMIN))) {
             return true;
         } else {
@@ -1532,7 +1532,7 @@ 
         if (empty($user_id)) {
             $user_id = api_get_user_id();
         }
-        $user_role	= $this->get_user_group_role($user_id, $group_id);
+        $user_role = $this->get_user_group_role($user_id, $group_id);
         if (in_array($user_role, array(GROUP_USER_PERMISSION_ADMIN, GROUP_USER_PERMISSION_MODERATOR))) {
             return true;
         } else {
@@ -1559,7 +1559,7 @@ 
             GROUP_USER_PERMISSION_READER,
             GROUP_USER_PERMISSION_HRM,
         );
-        $user_role	= self::get_user_group_role($user_id, $group_id);
+        $user_role = self::get_user_group_role($user_id, $group_id);
         if (in_array($user_role, $roles)) {
             return true;
         } else {
@@ -1576,7 +1576,7 @@ 
      * */
     public function get_user_group_role($user_id, $group_id)
     {
-        $table_group_rel_user= $this->usergroup_rel_user_table;
+        $table_group_rel_user = $this->usergroup_rel_user_table;
         $return_value = 0;
         if (!empty($user_id) && !empty($group_id)) {
             $sql = "SELECT relation_type FROM $table_group_rel_user
@@ -1584,8 +1584,8 @@ 
                         usergroup_id = ".intval($group_id)." AND
                         user_id = ".intval($user_id)." ";
             $result = Database::query($sql);
-            if (Database::num_rows($result)>0) {
-                $row = Database::fetch_array($result,'ASSOC');
+            if (Database::num_rows($result) > 0) {
+                $row = Database::fetch_array($result, 'ASSOC');
                 $return_value = $row['relation_type'];
             }
         }
@@ -1640,7 +1640,7 @@ 
         if (is_array($user_list) && is_array($group_list)) {
             foreach ($group_list as $group_id) {
                 foreach ($user_list as $user_id) {
-                    $role = self::get_user_group_role($user_id,$group_id);
+                    $role = self::get_user_group_role($user_id, $group_id);
                     if ($role == 0) {
                         $sql = "INSERT INTO $table_url_rel_group
 		               			SET
@@ -1671,7 +1671,7 @@ 
     public function delete_user_rel_group($user_id, $group_id)
     {
         $table = $this->usergroup_rel_user_table;
-        $sql= "DELETE FROM $table
+        $sql = "DELETE FROM $table
                WHERE
                 user_id = ".intval($user_id)." AND
                 usergroup_id = ".intval($group_id)."  ";
@@ -1727,7 +1727,7 @@ 
 
         $sql = "UPDATE $table_group_rel_user
    				SET relation_type = ".intval($relation_type)."
-                WHERE user_id = $user_id AND usergroup_id = $group_id" ;
+                WHERE user_id = $user_id AND usergroup_id = $group_id";
         Database::query($sql);
     }
 
@@ -1769,7 +1769,7 @@ 
         if (Database::num_rows($result) > 0) {
             while ($row = Database::fetch_array($result, 'ASSOC')) {
                 if ($with_image) {
-                    $picture = self::get_picture_group($row['id'], $row['picture'],80);
+                    $picture = self::get_picture_group($row['id'], $row['picture'], 80);
                     $img = '<img src="'.$picture['file'].'" />';
                     $row['picture'] = $img;
                 }
@@ -1805,11 +1805,11 @@ 
 				ORDER BY count DESC
 				LIMIT $num";
 
-        $result=Database::query($sql);
+        $result = Database::query($sql);
         $array = array();
         while ($row = Database::fetch_array($result, 'ASSOC')) {
             if ($with_image) {
-                $picture = self::get_picture_group($row['id'], $row['picture'],80);
+                $picture = self::get_picture_group($row['id'], $row['picture'], 80);
                 $img = '<img src="'.$picture['file'].'" />';
                 $row['picture'] = $img;
             }
@@ -1854,11 +1854,11 @@ 
                 ORDER BY created_at DESC
                 LIMIT $num ";
 
-        $result=Database::query($sql);
+        $result = Database::query($sql);
         $array = array();
         while ($row = Database::fetch_array($result, 'ASSOC')) {
             if ($with_image) {
-                $picture = self::get_picture_group($row['id'], $row['picture'],80);
+                $picture = self::get_picture_group($row['id'], $row['picture'], 80);
                 $img = '<img src="'.$picture['file'].'" />';
                 $row['picture'] = $img;
             }
@@ -1892,7 +1892,7 @@ 
         $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
         $group_id = intval($group_id);
 
-        if (empty($group_id)){
+        if (empty($group_id)) {
             return array();
         }
 
@@ -1907,9 +1907,9 @@ 
             $where_relation_condition = '';
         } else {
             $new_relation_type = array();
-            foreach($relation_type as $rel) {
+            foreach ($relation_type as $rel) {
                 $rel = intval($rel);
-                $new_relation_type[] ="'$rel'";
+                $new_relation_type[] = "'$rel'";
             }
             $relation_type = implode(',', $new_relation_type);
             if (!empty($relation_type))
@@ -1953,7 +1953,7 @@ 
         $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
         $group_id = intval($group_id);
 
-        if (empty($group_id)){
+        if (empty($group_id)) {
             return array();
         }
 
@@ -1964,7 +1964,7 @@ 
 			    WHERE gu.usergroup_id= $group_id
 			    ORDER BY relation_type, firstname";
 
-        $result=Database::query($sql);
+        $result = Database::query($sql);
         $array = array();
         while ($row = Database::fetch_array($result, 'ASSOC')) {
             $array[$row['id']] = $row;
@@ -1993,27 +1993,27 @@ 
             case GROUP_USER_PERMISSION_READER:
                 // I'm just a reader
                 $relation_group_title = get_lang('IAmAReader');
-                $links .=  '<li><a href="group_invitation.php?id='.$group_id.'">'.
-                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show=='invite_friends'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
-                $links .=  '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
+                $links .= '<li><a href="group_invitation.php?id='.$group_id.'">'.
+                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show == 'invite_friends' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
+                $links .= '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
                             Display::return_icon('group_leave.png', get_lang('LeaveGroup'), array('hspace'=>'6')).'<span class="social-menu-text4" >'.get_lang('LeaveGroup').'</span></a></li>';
                 break;
             case GROUP_USER_PERMISSION_ADMIN:
                 $relation_group_title = get_lang('IAmAnAdmin');
-                $links .=  '<li><a href="group_edit.php?id='.$group_id.'">'.
-                            Display::return_icon('group_edit.png', get_lang('EditGroup'), array('hspace'=>'6')).'<span class="'.($show=='group_edit'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('EditGroup').'</span></a></li>';
-                $links .=  '<li><a href="group_waiting_list.php?id='.$group_id.'">'.
-                            Display::return_icon('waiting_list.png', get_lang('WaitingList'), array('hspace'=>'6')).'<span class="'.($show=='waiting_list'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('WaitingList').'</span></a></li>';
-                $links .=  '<li><a href="group_invitation.php?id='.$group_id.'">'.
-                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show=='invite_friends'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
-                $links .=  '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
+                $links .= '<li><a href="group_edit.php?id='.$group_id.'">'.
+                            Display::return_icon('group_edit.png', get_lang('EditGroup'), array('hspace'=>'6')).'<span class="'.($show == 'group_edit' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('EditGroup').'</span></a></li>';
+                $links .= '<li><a href="group_waiting_list.php?id='.$group_id.'">'.
+                            Display::return_icon('waiting_list.png', get_lang('WaitingList'), array('hspace'=>'6')).'<span class="'.($show == 'waiting_list' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('WaitingList').'</span></a></li>';
+                $links .= '<li><a href="group_invitation.php?id='.$group_id.'">'.
+                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show == 'invite_friends' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
+                $links .= '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
                             Display::return_icon('group_leave.png', get_lang('LeaveGroup'), array('hspace'=>'6')).'<span class="social-menu-text4" >'.get_lang('LeaveGroup').'</span></a></li>';
                 break;
             case GROUP_USER_PERMISSION_PENDING_INVITATION:
 //				$links .=  '<li><a href="groups.php?id='.$group_id.'&action=join&u='.api_get_user_id().'">'.Display::return_icon('addd.gif', get_lang('YouHaveBeenInvitedJoinNow'), array('hspace'=>'6')).'<span class="social-menu-text4" >'.get_lang('YouHaveBeenInvitedJoinNow').'</span></a></li>';
                 break;
             case GROUP_USER_PERMISSION_PENDING_INVITATION_SENT_BY_USER:
-                $relation_group_title =  get_lang('WaitingForAdminResponse');
+                $relation_group_title = get_lang('WaitingForAdminResponse');
                 break;
             case GROUP_USER_PERMISSION_MODERATOR:
                 $relation_group_title = get_lang('IAmAModerator');
@@ -2021,25 +2021,25 @@ 
                 //$links .=  '<li><a href="groups.php?id='.$group_id.'">'.				Display::return_icon('message_list.png', get_lang('MessageList'), array('hspace'=>'6')).'<span class="'.($show=='messages_list'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('MessageList').'</span></a></li>';
                 //$links .=  '<li><a href="group_members.php?id='.$group_id.'">'.		Display::return_icon('member_list.png', get_lang('MemberList'), array('hspace'=>'6')).'<span class="'.($show=='member_list'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('MemberList').'</span></a></li>';
                 if ($group_info['visibility'] == GROUP_PERMISSION_CLOSED) {
-                    $links .=  '<li><a href="group_waiting_list.php?id='.$group_id.'">'.
-                                Display::return_icon('waiting_list.png', get_lang('WaitingList'), array('hspace'=>'6')).'<span class="'.($show=='waiting_list'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('WaitingList').'</span></a></li>';
+                    $links .= '<li><a href="group_waiting_list.php?id='.$group_id.'">'.
+                                Display::return_icon('waiting_list.png', get_lang('WaitingList'), array('hspace'=>'6')).'<span class="'.($show == 'waiting_list' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('WaitingList').'</span></a></li>';
                 }
-                $links .=  '<li><a href="group_invitation.php?id='.$group_id.'">'.
-                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show=='invite_friends'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
-                $links .=  '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
+                $links .= '<li><a href="group_invitation.php?id='.$group_id.'">'.
+                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show == 'invite_friends' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
+                $links .= '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
                             Display::return_icon('group_leave.png', get_lang('LeaveGroup'), array('hspace'=>'6')).'<span class="social-menu-text4" >'.get_lang('LeaveGroup').'</span></a></li>';
                 break;
             case GROUP_USER_PERMISSION_HRM:
                 $relation_group_title = get_lang('IAmAHRM');
                 $links .= '<li><a href="'.api_get_path(WEB_CODE_PATH).'social/message_for_group_form.inc.php?view_panel=1&height=400&width=610&&user_friend='.api_get_user_id().'&group_id='.$group_id.'&action=add_message_group" class="ajax" title="'.get_lang('ComposeMessage').'" data-size="lg" data-title="'.get_lang('ComposeMessage').'">'.
                             Display::return_icon('new-message.png', get_lang('NewTopic'), array('hspace'=>'6')).'<span class="social-menu-text4" >'.get_lang('NewTopic').'</span></a></li>';
-                $links .=  '<li><a href="group_view.php?id='.$group_id.'">'.
-                            Display::return_icon('message_list.png', get_lang('MessageList'), array('hspace'=>'6')).'<span class="'.($show=='messages_list'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('MessageList').'</span></a></li>';
-                $links .=  '<li><a href="group_invitation.php?id='.$group_id.'">'.
-                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show=='invite_friends'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
-                $links .=  '<li><a href="group_members.php?id='.$group_id.'">'.
-                            Display::return_icon('member_list.png', get_lang('MemberList'), array('hspace'=>'6')).'<span class="'.($show=='member_list'?'social-menu-text-active':'social-menu-text4').'" >'.get_lang('MemberList').'</span></a></li>';
-                $links .=  '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
+                $links .= '<li><a href="group_view.php?id='.$group_id.'">'.
+                            Display::return_icon('message_list.png', get_lang('MessageList'), array('hspace'=>'6')).'<span class="'.($show == 'messages_list' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('MessageList').'</span></a></li>';
+                $links .= '<li><a href="group_invitation.php?id='.$group_id.'">'.
+                            Display::return_icon('invitation_friend.png', get_lang('InviteFriends'), array('hspace'=>'6')).'<span class="'.($show == 'invite_friends' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('InviteFriends').'</span></a></li>';
+                $links .= '<li><a href="group_members.php?id='.$group_id.'">'.
+                            Display::return_icon('member_list.png', get_lang('MemberList'), array('hspace'=>'6')).'<span class="'.($show == 'member_list' ? 'social-menu-text-active' : 'social-menu-text4').'" >'.get_lang('MemberList').'</span></a></li>';
+                $links .= '<li><a href="group_view.php?id='.$group_id.'&action=leave&u='.api_get_user_id().'">'.
                             Display::return_icon('delete_data.gif', get_lang('LeaveGroup'), array('hspace'=>'6')).'<span class="social-menu-text4" >'.get_lang('LeaveGroup').'</span></a></li>';
                 break;
             default:
@@ -2082,14 +2082,14 @@ 
      */
     public function get_groups_by_user_count($user_id = '', $relation_type = GROUP_USER_PERMISSION_READER, $with_image = false)
     {
-        $table_group_rel_user	= $this->usergroup_rel_user_table;
-        $tbl_group				= $this->table;
-        $user_id 				= intval($user_id);
+        $table_group_rel_user = $this->usergroup_rel_user_table;
+        $tbl_group = $this->table;
+        $user_id = intval($user_id);
 
         if ($relation_type == 0) {
             $where_relation_condition = '';
         } else {
-            $relation_type 			= intval($relation_type);
+            $relation_type = intval($relation_type);
             $where_relation_condition = "AND gu.relation_type = $relation_type ";
         }
 
@@ -2162,7 +2162,7 @@ 
         }
 
         $direction = 'ASC';
-        if (!in_array($direction, array('ASC','DESC'))) {
+        if (!in_array($direction, array('ASC', 'DESC'))) {
             $direction = 'ASC';
         }
 
@@ -2173,8 +2173,8 @@ 
         $sql .= " LIMIT $from,$number_of_items";
 
         $res = Database::query($sql);
-        if (Database::num_rows($res)> 0) {
-            while ($row = Database::fetch_array($res,'ASSOC')) {
+        if (Database::num_rows($res) > 0) {
+            while ($row = Database::fetch_array($res, 'ASSOC')) {
                 if (!in_array($row['id'], $return)) {
                     $return[$row['id']] = $row;
                 }
@@ -2199,7 +2199,7 @@ 
             if ($i == $max_level) {
                 $select_part .= "rg$rg_number.group_id as id_$rg_number ";
             } else {
-                $select_part .="rg$rg_number.group_id as id_$rg_number, ";
+                $select_part .= "rg$rg_number.group_id as id_$rg_number, ";
             }
             if ($i == 1) {
                 $cond_part .= "FROM $t_rel_group rg0 LEFT JOIN $t_rel_group rg$i on rg$rg_number.group_id = rg$i.subgroup_id ";
@@ -2387,7 +2387,7 @@ 
         $nameList = '<ul class="list-unstyled">';
 
         foreach ($groupsNameListParsed as $name) {
-            $nameList .= '<li>' . Display::span($name, ['class' => 'label label-info']) . '</li>';
+            $nameList .= '<li>'.Display::span($name, ['class' => 'label label-info']).'</li>';
         }
 
         $nameList .= '</ul>';