moodle/mod/lesson/action/addendofcluster.php

54 lines
2.0 KiB
PHP

<?php // $Id$
/**
* Action for adding an end of cluster page
*
* @version $Id$
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
* @package lesson
**/
confirm_sesskey();
// first get the preceeding page
$pageid = required_param('pageid', PARAM_INT);
$timenow = time();
// the new page is not the first page (end of cluster always comes after an existing page)
if (!$page = get_record("lesson_pages", "id", $pageid)) {
error("Error: Could not find page");
}
// could put code in here to check if the user really can insert an end of cluster
$newpage = new stdClass;
$newpage->lessonid = $lesson->id;
$newpage->prevpageid = $pageid;
$newpage->nextpageid = $page->nextpageid;
$newpage->qtype = LESSON_ENDOFCLUSTER;
$newpage->timecreated = $timenow;
$newpage->title = get_string("endofclustertitle", "lesson");
$newpage->contents = get_string("endofclustertitle", "lesson");
if (!$newpageid = insert_record("lesson_pages", $newpage)) {
error("Insert page: end of cluster page not inserted");
}
// update the linked list...
if (!set_field("lesson_pages", "nextpageid", $newpageid, "id", $pageid)) {
error("Add end of cluster: unable to update link");
}
if ($page->nextpageid) {
// the new page is not the last page
if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $page->nextpageid)) {
error("Insert end of cluster: unable to update previous link");
}
}
// ..and the single "answer"
$newanswer = new stdClass;
$newanswer->lessonid = $lesson->id;
$newanswer->pageid = $newpageid;
$newanswer->timecreated = $timenow;
$newanswer->jumpto = LESSON_NEXTPAGE;
if(!$newanswerid = insert_record("lesson_answers", $newanswer)) {
error("Add end of cluster: answer record not inserted");
}
lesson_set_message(get_string('addedendofcluster', 'lesson'), 'notifysuccess');
redirect("$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id");