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205 lines
6.8 KiB
205 lines
6.8 KiB
<?php
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// $Id: class.php 9119 2006-08-18 07:10:23Z bmol $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2005 Dokeos S.A.
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Copyright (c) Bart Mollet, Hogeschool Gent
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, 44 rue des palais, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* This script allows teachers to manage subscribed
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*classes in their course.
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* @package dokeos.user
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==============================================================================
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*/
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/*
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==============================================================================
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INIT SECTION
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==============================================================================
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*/
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// name of the language file that needs to be included
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$language_file = array('registration','admin');
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include ('../inc/global.inc.php');
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$this_section = SECTION_COURSES;
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require_once (api_get_path(LIBRARY_PATH).'course.lib.php');
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require_once (api_get_path(LIBRARY_PATH).'sortabletable.class.php');
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require_once (api_get_path(LIBRARY_PATH).'classmanager.lib.php');
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require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
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/*
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==============================================================================
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MAIN CODE
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==============================================================================
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*/
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api_protect_course_script();
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if(api_get_setting('use_session_mode')=='true')
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{
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api_not_allowed();
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}
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/*
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-----------------------------------------------------------
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Header
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-----------------------------------------------------------
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*/
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$tool_name = get_lang("Classes");
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//extra entries in breadcrumb
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$interbreadcrumb[] = array ("url" => "user.php", "name" => get_lang("Users"));
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Display :: display_header($tool_name, "User");
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api_display_tool_title($tool_name);
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if (api_is_allowed_to_edit())
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{
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echo '<a href="subscribe_class.php?'.api_get_cidreq().'">'.get_lang("AddClassesToACourse").'</a><br /><br />';
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}
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/*
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==============================================================================
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MAIN SECTION
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==============================================================================
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*/
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if(api_is_allowed_to_edit())
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{
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if (isset ($_GET['unsubscribe']))
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{
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ClassManager::unsubscribe_from_course($_GET['class_id'],$_course['sysCode']);
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Display::display_normal_message(get_lang('ClassesUnSubscribed'));
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}
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if (isset ($_POST['action']))
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{
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switch ($_POST['action'])
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{
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case 'unsubscribe' :
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if (is_array($_POST['class']))
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{
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foreach ($_POST['class'] as $index => $class_id)
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{
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ClassManager::unsubscribe_from_course($class_id,$_course['sysCode']);
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}
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Display::display_normal_message(get_lang('ClassesUnSubscribed'));
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}
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break;
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}
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}
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}
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/*
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-----------------------------------------------------------
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SHOW LIST OF CLASSES
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-----------------------------------------------------------
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*/
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/**
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* * Get the number of classes to display on the current page.
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*/
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function get_number_of_classes()
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{
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$class_table = Database :: get_main_table(TABLE_MAIN_CLASS);
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$course_class_table = Database :: get_main_table(TABLE_MAIN_COURSE_CLASS);
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$sql = "SELECT c.id FROM $class_table c, $course_class_table cc WHERE cc.class_id = c.id AND cc.course_code ='".$_SESSION['_course']['id']."'";
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if (isset ($_GET['keyword']))
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{
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$keyword = Database::escape_string(trim($_GET['keyword']));
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$sql .= " AND (c.name LIKE '%".$keyword."%')";
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}
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$res = Database::query($sql, __FILE__, __LINE__);
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$result = Database::num_rows($res);
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return $result;
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}
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/**
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* Get the classes to display on the current page.
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*/
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function get_class_data($from, $number_of_items, $column, $direction)
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{
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$class_table = Database :: get_main_table(TABLE_MAIN_CLASS);
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$course_class_table = Database :: get_main_table(TABLE_MAIN_COURSE_CLASS);
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$class_user_table = Database :: get_main_table(TABLE_MAIN_CLASS_USER);
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$sql = "SELECT
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c.id AS col0,
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c.name AS col1,
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COUNT(cu.user_id) AS col2";
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if (api_is_allowed_to_edit())
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{
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$sql .= " ,c.id AS col3";
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}
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// '(' and ')' in next query is necessary (see http://bugs.mysql.com/bug.php?id=19053)
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$sql .= " FROM ($class_table c, $course_class_table cc)";
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$sql .= " LEFT JOIN $class_user_table cu ON cu.class_id = c.id";
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$sql .= " WHERE c.id = cc.class_id AND cc.course_code = '".$_SESSION['_course']['id']."'";
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if (isset ($_GET['keyword']))
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{
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$keyword = Database::escape_string(trim($_GET['keyword']));
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$sql .= " AND (c.name LIKE '%".$keyword."%')";
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}
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$sql .= " GROUP BY c.id, c.name ";
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$sql .= " ORDER BY col$column $direction ";
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$sql .= " LIMIT $from,$number_of_items";
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$res = Database::query($sql, __FILE__, __LINE__);
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$classes = array ();
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while ($class = Database::fetch_row($res))
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{
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$classes[] = $class;
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}
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return $classes;
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}
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/**
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* Build the reg-column of the table
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* @param int $class_id The class id
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* @return string Some HTML-code
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*/
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function reg_filter($class_id)
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{
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global $charset;
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$result = '<a href="'.api_get_self().'?'.api_get_cidreq().'&unsubscribe=yes&class_id='.$class_id.'" onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;"><img src="../img/delete.gif"/></a>';
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return $result;
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}
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// Build search-form
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$form = new FormValidator('search_class', 'get','','',null,false);
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$renderer = & $form->defaultRenderer();
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$renderer->setElementTemplate('<span>{element}</span> ');
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$form->add_textfield('keyword', '', false);
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$form->addElement('submit', 'submit', get_lang('SearchButton'));
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// Build table
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$table = new SortableTable('user_class', 'get_number_of_classes', 'get_class_data', 1);
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$parameters['keyword'] = $_GET['keyword'];
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$table->set_additional_parameters($parameters);
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$col = 0;
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$table->set_header($col ++, '', false);
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$table->set_header($col ++, get_lang('ClassName'));
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$table->set_header($col ++, get_lang('NumberOfUsers'));
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if (api_is_allowed_to_edit())
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{
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$table->set_header($col ++, '', false);
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$table->set_column_filter($col -1, 'reg_filter');
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$table->set_form_actions(array ('unsubscribe' => get_lang('Unreg')), 'class');
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}
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// Display form & table
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$form->display();
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echo '<br />';
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$table->display();
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/*
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==============================================================================
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FOOTER
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==============================================================================
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*/
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Display :: display_footer();
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?>
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