"user.php", "name" => get_lang("ToolUser"));
$interbreadcrumb[] = array ("url" => "class.php", "name" => get_lang("Classes"));
Display :: display_header($tool_name, "User");
api_display_tool_title($tool_name);
/*
==============================================================================
MAIN SECTION
==============================================================================
*/
if (!api_is_allowed_to_edit())
{
api_not_allowed();
exit;
}
if (isset ($_GET['register']))
{
ClassManager::subscribe_to_course($_GET['class_id'],$_course['sysCode']);
Display::display_normal_message(get_lang('ClassesSubscribed'));
}
if (isset ($_POST['action']))
{
switch ($_POST['action'])
{
case 'subscribe' :
if (is_array($_POST['class']))
{
foreach ($_POST['class'] as $index => $class_id)
{
ClassManager::subscribe_to_course($class_id,$_course['sysCode']);
}
Display::display_normal_message(get_lang('ClassesSubscribed'));
}
break;
}
}
/*
-----------------------------------------------------------
SHOW LIST OF USERS
-----------------------------------------------------------
*/
/**
* * Get the number of classes to display on the current page.
*/
function get_number_of_classes()
{
$class_table = Database :: get_main_table(TABLE_MAIN_CLASS);
$course_class_table = Database :: get_main_table(TABLE_MAIN_COURSE_CLASS);
$sql = "SELECT * FROM $course_class_table WHERE course_code = '".$_SESSION['_course']['id']."'";
$res = Database::query($sql);
$subscribed_classes = array();
while($obj = Database::fetch_object($res))
{
$subscribed_classes[] = $obj->class_id;
}
$sql = "SELECT c.id FROM $class_table c WHERE 1 = 1";
if (isset ($_GET['keyword']))
{
$keyword = Database::escape_string(trim($_GET['keyword']));
$sql .= " AND (c.name LIKE '%".$keyword."%')";
}
if( count($subscribed_classes) > 0)
{
$sql .= " AND c.id NOT IN ('".implode("','",$subscribed_classes)."')";
}
$res = Database::query($sql);
$result = Database::num_rows($res);
return $result;
}
/**
* Get the classes to display on the current page.
*/
function get_class_data($from, $number_of_items, $column, $direction)
{
$class_table = Database :: get_main_table(TABLE_MAIN_CLASS);
$course_class_table = Database :: get_main_table(TABLE_MAIN_COURSE_CLASS);
$class_user_table = Database :: get_main_table(TABLE_MAIN_CLASS_USER);
$sql = "SELECT * FROM $course_class_table WHERE course_code = '".$_SESSION['_course']['id']."'";
$res = Database::query($sql);
$subscribed_classes = array();
while($obj = Database::fetch_object($res))
{
$subscribed_classes[] = $obj->class_id;
}
$sql = "SELECT
c.id AS col0,
c.name AS col1,
COUNT(cu.user_id) AS col2,
c.id AS col3
FROM $class_table c
";
$sql .= " LEFT JOIN $class_user_table cu ON cu.class_id = c.id";
$sql .= " WHERE 1 = 1";
if (isset ($_GET['keyword']))
{
$keyword = Database::escape_string(trim($_GET['keyword']));
$sql .= " AND (c.name LIKE '%".$keyword."%')";
}
if( count($subscribed_classes) > 0)
{
$sql .= " AND c.id NOT IN ('".implode("','",$subscribed_classes)."')";
}
$sql .= " GROUP BY c.id, c.name ";
$sql .= " ORDER BY col$column $direction ";
$sql .= " LIMIT $from,$number_of_items";
$res = Database::query($sql);
$classes = array ();
while ($class = Database::fetch_row($res))
{
$classes[] = $class;
}
return $classes;
}
/**
* Build the reg-column of the table
* @param int $class_id The class id
* @return string Some HTML-code
*/
function reg_filter($class_id)
{
$result = "".get_lang("reg")."";
return $result;
}
// Build search-form
$form = new FormValidator('search_class', 'get','','',null,false);
$renderer = & $form->defaultRenderer();
$renderer->setElementTemplate('{element} ');
$form->add_textfield('keyword', '', false);
$form->addElement('submit', 'submit', get_lang('SearchButton'));
// Build table
$table = new SortableTable('users', 'get_number_of_classes', 'get_class_data', 1);
$parameters['keyword'] = Security::remove_XSS($_GET['keyword']);
$table->set_additional_parameters($parameters);
$col = 0;
$table->set_header($col ++, '', false);
$table->set_header($col ++, get_lang('ClassName'));
$table->set_header($col ++, get_lang('NumberOfUsers'));
$table->set_header($col ++, get_lang('reg'), false);
$table->set_column_filter($col -1, 'reg_filter');
$table->set_form_actions(array ('subscribe' => get_lang('reg')), 'class');
// Display form & table
$form->display();
echo '
';
$table->display();
/*
==============================================================================
FOOTER
==============================================================================
*/
Display :: display_footer();
?>