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222 lines
7.0 KiB
222 lines
7.0 KiB
<?php
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// $Id: subscribe_class.php 8213 2006-03-15 15:52:12Z turboke $
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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 subscribe existing classes to 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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if (!api_is_allowed_to_edit()) api_not_allowed(true);
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if(api_get_setting('use_session_mode')=='true')
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{
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api_not_allowed(true);
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}
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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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/*
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-----------------------------------------------------------
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Header
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-----------------------------------------------------------
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*/
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$tool_name = get_lang("AddClassesToACourse");
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//extra entries in breadcrumb
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$interbreadcrumb[] = array ("url" => "user.php", "name" => get_lang("Users"));
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$interbreadcrumb[] = array ("url" => "class.php", "name" => get_lang("Classes"));
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Display :: display_header($tool_name, "User");
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api_display_tool_title($tool_name);
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/*
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==============================================================================
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MAIN SECTION
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==============================================================================
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*/
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if (!api_is_allowed_to_edit())
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{
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api_not_allowed();
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exit;
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}
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if (isset ($_GET['register']))
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{
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ClassManager::subscribe_to_course($_GET['class_id'],$_course['sysCode']);
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Display::display_normal_message(get_lang('ClassesSubscribed'));
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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 'subscribe' :
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if (is_array($_POST['class']))
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{
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foreach ($_POST['class'] as $index => $class_id)
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{
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ClassManager::subscribe_to_course($class_id,$_course['sysCode']);
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}
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Display::display_normal_message(get_lang('ClassesSubscribed'));
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}
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break;
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}
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}
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/*
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-----------------------------------------------------------
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SHOW LIST OF USERS
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-----------------------------------------------------------
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*/
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/**
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* * Get the number of classes to display on the current page.
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*/
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function get_number_of_classes()
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{
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$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 * FROM $course_class_table WHERE course_code = '".$_SESSION['_course']['id']."'";
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$res = Database::query($sql,__FILE__,__LINE__);
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$subscribed_classes = array();
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while($obj = Database::fetch_object($res))
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{
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$subscribed_classes[] = $obj->class_id;
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}
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$sql = "SELECT c.id FROM $class_table c WHERE 1 = 1";
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if (isset ($_GET['keyword']))
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{
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$keyword = Database::escape_string($_GET['keyword']);
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$sql .= " AND (c.name LIKE '%".$keyword."%')";
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}
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if( count($subscribed_classes) > 0)
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{
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$sql .= " AND c.id NOT IN ('".implode("','",$subscribed_classes)."')";
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}
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$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 * FROM $course_class_table WHERE course_code = '".$_SESSION['_course']['id']."'";
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$res = Database::query($sql,__FILE__,__LINE__);
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$subscribed_classes = array();
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while($obj = Database::fetch_object($res))
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{
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$subscribed_classes[] = $obj->class_id;
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}
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$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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c.id AS col3
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FROM $class_table c
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";
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$sql .= " LEFT JOIN $class_user_table cu ON cu.class_id = c.id";
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$sql .= " WHERE 1 = 1";
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if (isset ($_GET['keyword']))
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{
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$keyword = Database::escape_string($_GET['keyword']);
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$sql .= " AND (c.name LIKE '%".$keyword."%')";
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}
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if( count($subscribed_classes) > 0)
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{
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$sql .= " AND c.id NOT IN ('".implode("','",$subscribed_classes)."')";
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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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$result = "<a href=\"".api_get_self()."?register=yes&class_id=".$class_id."\">".get_lang("reg")."</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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$table = new SortableTable('users', 'get_number_of_classes', 'get_class_data', 1);
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$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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$table->set_header($col ++, get_lang('reg'), false);
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$table->set_column_filter($col -1, 'reg_filter');
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$table->set_form_actions(array ('subscribe' => get_lang('reg')), 'class');
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// Display form & table
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$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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