function definition()
{
$mform =& $this->_form;
$mform->addElement('hidden', 'id');
$mform->setType('id', PARAM_INT);
$mform->addElement('hidden', 'a');
$mform->setType('a', PARAM_INT);
if ($this->_customdata !== NULL) {
// Print edit form for a single link type
$mform->addElement('hidden', 'linkid', $this->_customdata->link->id);
$mform->setType('linkid', PARAM_INT);
$mform->addElement('hidden', 'action', 'edit');
$mform->setType('action', PARAM_ALPHA);
$mform->addElement('header', $this->_customdata->type, $this->_customdata->get_name());
$this->_customdata->edit_form_add($mform);
$this->add_action_buttons();
} else {
// Print add form for all link types
foreach (pagemenu_get_link_classes() as $link) {
if ($link->is_enabled()) {
$mform->addElement('header', $link->type, '');
// No title
$link->edit_form_add($mform);
}
}
$this->add_action_buttons(false, get_string('addlinks', 'pagemenu'));
}
}
if (!($linktype = get_field('pagemenu_links', 'type', 'id', $linkid))) {
error('Invalid link ID');
}
$link = mod_pagemenu_link::factory($linktype, $linkid);
$formdata = array_merge($formdata, (array) $link->config);
}
}
// Create the editing form which has dual purpose - add new
// links of any type or edit a single link of any type
$mform = new mod_pagemenu_edit_form(NULL, $link);
if ($mform->is_cancelled()) {
redirect("{$CFG->wwwroot}/mod/pagemenu/edit.php?id={$cm->id}");
} else {
if ($data = $mform->get_data()) {
// Save form data
foreach (pagemenu_get_link_classes() as $link) {
$link->save($data);
}
pagemenu_set_message(get_string('menuupdated', 'pagemenu'), 'notifysuccess');
redirect("{$CFG->wwwroot}/mod/pagemenu/edit.php?id={$cm->id}");
} else {
if (!empty($linkaction)) {
// These are special link actions that can be invoked by
// a link class. EG: hide show page menu items
if (!confirm_sesskey()) {
error(get_string('confirmsesskeybad', 'error'));
}
if (!in_array($linkaction, pagemenu_get_links())) {
error('Invalide link type');
}
$link = mod_pagemenu_link::factory($linkaction);