File Source for group.php

<?php
/*
===============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
Copyright (c) 2001 Universite catholique de Louvain (UCL)
Copyright (c) Roan Embrechts (Vrije Universiteit Brussel)
Copyright (c) Bart Mollet
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
===============================================================================
*/
/**
==============================================================================
* Main page for the group module.
* This script displays the general group settings,
* and a list of groups with buttons to view, edit...
*
* @author Thomas Depraetere, Hugues Peeters, Christophe Gesche: initial versions
* @author Bert Vanderkimpen, improved self-unsubscribe for cvs
* @author Patrick Cool, show group comment under the group name
* @author Roan Embrechts, initial self-unsubscribe code, code cleaning, virtual course support
* @author Bart Mollet, code cleaning, use of Display-library, list of courseAdmin-tools, use of GroupManager
* @package dokeos.group
==============================================================================
*/
/*
==============================================================================
INIT SECTION
==============================================================================
*/
// name of the language file that needs to be included
$language_file = 'group';
include ('../inc/global.inc.php');
$this_section=SECTION_COURSES;
// notice for unauthorized people.
api_protect_course_script(true);
$nameTools = get_lang('GroupManagement');
/*
-----------------------------------------------------------
Libraries
-----------------------------------------------------------
*/
require_once (api_get_path(LIBRARY_PATH).'course.lib.php');
require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
require_once (api_get_path(LIBRARY_PATH).'events.lib.inc.php');
//Create default category if it doesn't exist when group categories aren't allowed
if( api_get_setting('allow_group_categories') == 'false')
{
$cat_table = Database::get_course_table(TABLE_GROUP_CATEGORY);
$sql = "SELECT * FROM $cat_table WHERE id = '".DEFAULT_GROUP_CATEGORY."'";
$res = api_sql_query($sql,__FILE__,__LINE__);
$num = Database::num_rows($res);
if($num == 0)
{
api_sql_query("INSERT INTO ".$cat_table." ( id , title , description , forum_state , max_student , self_reg_allowed , self_unreg_allowed , groups_per_user , display_order ) VALUES ('2', '".lang2db($DefaultGroupCategory)."', '', '1', '8', '0', '0', '0', '0');");
}
}
/*
-----------------------------------------------------------
Header
-----------------------------------------------------------
*/
if (!isset ($_GET['origin']) || $_GET['origin'] != 'learnpath')
{ //so we are not in learnpath tool
event_access_tool(TOOL_GROUP);
if (! $is_allowed_in_course) api_not_allowed(true);
}
Display::display_header(get_lang('Groups'));
/*
-----------------------------------------------------------
Introduction section
(editable by course admins)
-----------------------------------------------------------
*/
Display::display_introduction_section(TOOL_GROUP);
/*
* Self-registration and unregistration
*/
if (isset ($_GET['action']))
{
switch ($_GET['action'])
{
case 'self_reg' :
if (GroupManager :: is_self_registration_allowed($_SESSION['_user']['user_id'], $_GET['group_id']))
{
GroupManager :: subscribe_users($_SESSION['_user']['user_id'], $_GET['group_id']);
Display :: display_normal_message(get_lang('GroupNowMember'));
}
break;
case 'self_unreg' :
if (GroupManager :: is_self_unregistration_allowed($_SESSION['_user']['user_id'], $_GET['group_id']))
{
GroupManager :: unsubscribe_users($_SESSION['_user']['user_id'], $_GET['group_id']);
Display :: display_normal_message(get_lang('StudentDeletesHimself'));
}
break;
case 'show_msg' :
Display :: display_normal_message($_GET['msg']);
break;
}
}
/*
* Group-admin functions
*/
if (api_is_allowed_to_edit())
{
// Post-actions
if (isset ($_POST['action']))
{
switch ($_POST['action'])
{
case 'delete_selected' :
if( is_array($_POST['group']))
{
GroupManager :: delete_groups($_POST['group']);
Display :: display_normal_message(get_lang('SelectedGroupsDeleted'));
}
break;
case 'empty_selected' :
if( is_array($_POST['group']))
{
GroupManager :: unsubscribe_all_users($_POST['group']);
Display :: display_normal_message(get_lang('SelectedGroupsEmptied'));
}
break;
case 'fill_selected' :
if( is_array($_POST['group']))
{
GroupManager :: fill_groups($_POST['group']);
Display :: display_normal_message(get_lang('SelectedGroupsFilled'));
}
break;
}
}
// Get-actions
if (isset ($_GET['action']))
{
switch ($_GET['action'])
{
case 'swap_cat_order' :
GroupManager :: swap_category_order($_GET['id1'], $_GET['id2']);
Display :: display_normal_message(get_lang('CategoryOrderChanged'));
break;
case 'delete_one' :
GroupManager :: delete_groups($_GET['id']);
Display :: display_normal_message(get_lang('GroupDel'));
break;
case 'empty_one' :
GroupManager :: unsubscribe_all_users($_GET['id']);
Display :: display_normal_message(get_lang('GroupEmptied'));
break;
case 'fill_one' :
GroupManager :: fill_groups($_GET['id']);
Display :: display_normal_message(get_lang('GroupFilledGroups'));
break;
case 'delete_category' :
GroupManager :: delete_category($_GET['id']);
Display :: display_normal_message(get_lang('CategoryDeleted'));
break;
}
}
// Show admin-panel
echo '<div id="actions">';
echo '<ul id="groupItems">';
if (get_setting('allow_group_categories') == 'true')
{
echo '<li><a href="group_category.php?'.api_get_cidreq().'&action=add_category">'.get_lang('AddCategory').'</a> </li>';
}
else
{
//echo '<a href="group_category.php?'.api_get_cidreq().'&id=2">'.Display::return_icon('edit_group.gif').' '.get_lang('PropModify').'</a> ';
echo '<a href="group_category.php?'.api_get_cidreq().'&id=2">'.get_lang('PropModify').'</a> ';
}
//echo '<a href="group_creation.php?'.api_get_cidreq().'">'.Display::return_icon('group_add_big.gif').' '.get_lang('NewGroupCreate').'</a> ';
echo '<li><a href="group_creation.php?'.api_get_cidreq().'">'.get_lang('NewGroupCreate').'</a> </li>';
if( Database::count_rows(Database::get_course_table(TABLE_GROUP)) > 0)
{
//echo '<a href="group_overview.php?'.api_get_cidreq().'">'.Display::return_icon('group_view.gif').' '.get_lang('GroupOverview').'</a> ';
echo '<li><a href="group_overview.php?'.api_get_cidreq().'">'.get_lang('GroupOverview').'</a> </li>';
}
}
$group_cats = GroupManager :: get_categories();
if (get_setting('allow_group_categories') == 'true' && count($group_cats) > 1)
{
//echo '<p><a href="?'.api_get_cidreq().'&show_all=1">'.get_lang('ShowAll').'</a></p>';
echo '<li><a href="?'.api_get_cidreq().'&show_all=1">'.get_lang('ShowAll').'</a></li>';
}
echo '</ul>';
/*
* List all categories
*/
foreach ($group_cats as $index => $category)
{
$group_list = array ();
$in_category = false;
if (get_setting('allow_group_categories') == 'true')
{
if (isset ($_GET['show_all']) || (isset ($_GET['category']) && $_GET['category'] == $category['id']))
{
echo '<img src="../img/opendir.gif" alt=""/>';
echo ' <a href="group.php?'.api_get_cidreq().'&origin='.$_GET['origin'].'">'.$category['title'].'</a>';
$in_category = true;
}
else
{
echo '<img src="../img/file.gif" alt=""/>';
echo ' <a href="group.php?'.api_get_cidreq().'&origin='.$_GET['origin'].'&category='.$category['id'].'">'.$category['title'].'</a>';
}
$group_list = GroupManager :: get_group_list($category['id']);
echo ' ('.count($group_list).' '.get_lang('ExistingGroups').')';
if (api_is_allowed_to_edit())
{
echo '<a href="group_category.php?'.api_get_cidreq().'&id='.$category['id'].'" title="'.get_lang('Edit').'"><img src="../img/edit.gif" alt="'.get_lang('Edit').'"/></a> ';
echo '<a href="group.php?'.api_get_cidreq().'&action=delete_category&id='.$category['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('Delete').'"><img src="../img/delete.gif" alt="'.get_lang('Delete').'"/></a> ';
if ($index != 0)
{
echo ' <a href="group.php?'.api_get_cidreq().'&action=swap_cat_order&id1='.$category['id'].'&id2='.$group_cats[$index -1]['id'].'"><img src="../img/up.gif" alt=""/></a>';
}
if ($index != count($group_cats) - 1)
{
echo ' <a href="group.php?'.api_get_cidreq().'&action=swap_cat_order&id1='.$category['id'].'&id2='.$group_cats[$index +1]['id'].'"><img src="../img/down.gif" alt=""/></a>';
}
}
echo '<p style="margin: 0px;margin-left: 50px;">'.$category['description'].'</p><p/>';
}
else
{
$group_list = GroupManager :: get_group_list();
$in_category = true;
}
echo '<div style="margin: 0px;margin-left: 50px;">';
//if (count($group_list) > 0 && $in_category)
if ($in_category)
{
$totalRegistered = 0;
// Determine wether current user is tutor for this course
$user_is_tutor = GroupManager :: is_tutor($_user['user_id']);
$group_data = array ();
foreach ($group_list as $index => $this_group)
{
// all the tutors of this group
$tutorsids_of_group=GroupManager::get_subscribed_tutors($this_group['id'],true);
// create a new table-row
$row = array ();
// checkbox
if (api_is_allowed_to_edit() && count($group_list) > 1)
{
$row[] = $this_group['id'];
}
// group name
if (api_is_allowed_to_edit() ||
in_array($_user['user_id'],$tutorsids_of_group) ||
$this_group['is_member'] ||
GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_DOCUMENTS) ||
GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_CALENDAR) ||
GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_ANNOUNCEMENT) ||
GroupManager::user_has_access($_user['user_id'],$this_group['id'],GROUP_TOOL_WORK))
{
$group_name = '<a href="group_space.php?'.api_get_cidreq().'&origin='.$origin.'&gidReq='.$this_group['id'].'">'.stripslashes($this_group['name']).'</a>';
if ($_SESSION['_user']['user_id'] && $_SESSION['_user']['user_id'] == $this_group['id_tutor'])
{
$group_name .= ' ('.get_lang('OneMyGroups').')';
}
elseif ($this_group['is_member'])
{
$group_name .= ' ('.get_lang('MyGroup').')';
}
$row[] = $group_name.'<br/>'.stripslashes(trim($this_group['description']));
}
else
{
$row[] = $this_group['name'].'<br/>'.stripslashes(trim($this_group['description']));
}
// self-registration / unregistration
if (!api_is_allowed_to_edit())
{
if (GroupManager :: is_self_registration_allowed($_user['user_id'], $this_group['id']))
{
$row[] = '<a href="group.php?'.api_get_cidreq().'&category='.$category['id'].'&action=self_reg&group_id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;">'.get_lang('GroupSelfRegInf').'</a>';
}
elseif (GroupManager :: is_self_unregistration_allowed($_user['user_id'], $this_group['id']))
{
$row[] = '<a href="group.php?'.api_get_cidreq().'&category='.$category['id'].'&action=self_unreg&group_id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;">'.get_lang('GroupSelfUnRegInf').'</a>';
}
else
{
$row[] = '-';
}
}
// number of members in group
$row[] = $this_group['number_of_members'];
// max number of members in group
$row[] = ($this_group['maximum_number_of_members'] == MEMBER_PER_GROUP_NO_LIMIT ? '-' : $this_group['maximum_number_of_members']);
// tutor name
$tutor_info = '';
if(count($tutorsids_of_group)>0)
{
foreach($tutorsids_of_group as $tutor_id){
$tutor = api_get_user_info($tutor_id);
$tutor_info .= Display::encrypted_mailto_link($tutor['mail'],$tutor['firstName'].' '.$tutor['lastName']).', ';
}
}
$tutor_info = substr($tutor_info,0,strlen($tutor_info)-2);
$row[] = $tutor_info;
// edit-links
if (api_is_allowed_to_edit())
{
$edit_actions = '<a href="group_edit.php?'.api_get_cidreq().'&gidReq='.$this_group['id'].'" title="'.get_lang('Edit').'"><img src="../img/edit.gif" alt="'.get_lang('Edit').'"/></a> ';
$edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&action=delete_one&id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('Delete').'"><img src="../img/delete.gif" alt="'.get_lang('Delete').'"/></a> ';
$edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&action=empty_one&id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('EmptyGroup').'"><img src="../img/group_delete.gif" alt="'.get_lang('EmptyGroup').'"/></a> ';
$edit_actions .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&category='.$category['id'].'&action=fill_one&id='.$this_group['id'].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmYourChoice')))."'".')) return false;" title="'.get_lang('FillGroup').'"><img src="../img/add_user.gif" alt="'.get_lang('FillGroup').'"/></a>';
$row[] = $edit_actions;
}
$totalRegistered = $totalRegistered + $this_group['nbMember'];
$group_data[] = $row;
} // while loop
if (isset ($_GET['show_all']))
{
$paging_options = array ('per_page' => count($group_data));
}
else
{
$paging_options = array ();
}
$table = new SortableTableFromArray($group_data, 1);
$table->set_additional_parameters(array('category'=>$_GET['category']));
$column = 0;
if (api_is_allowed_to_edit() and count($group_list) > 1)
{
$table->set_header($column++,'', false);
}
$table->set_header($column++,get_lang('ExistingGroups'));
if (!api_is_allowed_to_edit()) // If self-registration allowed
{
$table->set_header($column++,get_lang('GroupSelfRegistration'));
}
$table->set_header($column++,get_lang('Registered'));
$table->set_header($column++,get_lang('Max'));
$table->set_header($column++,get_lang('GroupTutor'));
if (api_is_allowed_to_edit()) // only for course administrator
{
$table->set_header($column++,get_lang('Modify'), false);
$form_actions = array();
$form_actions['delete_selected'] = get_lang('Delete');
$form_actions['fill_selected'] = get_lang('FillGroup');
$form_actions['empty_selected'] = get_lang('EmptyGroup');
if (count($group_list) > 1)
{
$table->set_form_actions($form_actions,'group');
}
}
$table->display();
}
/*
elseif ($in_category)
{
echo get_lang('NoGroupsAvailable');
}
*/
echo '</div>';
}
/*
==============================================================================
FOOTER
==============================================================================
*/
if (!isset ($_GET['origin']) || $_GET['origin'] != 'learnpath')
{
Display::display_footer();
}
?>

Source for file group.php