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68 lines
2.3 KiB
PHP
68 lines
2.3 KiB
PHP
<?php // $Id$
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/**
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* Action for adding a cluster page
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*
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* @version $Id$
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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* @package lesson
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**/
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confirm_sesskey();
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// first get the preceeding page
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// if $pageid = 0, then we are inserting a new page at the beginning of the lesson
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$pageid = required_param('pageid', PARAM_INT);
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$timenow = time();
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if ($pageid == 0) {
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if (!$page = get_record("lesson_pages", "prevpageid", 0, "lessonid", $lesson->id)) {
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error("Error: Add cluster: page record not found");
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}
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} else {
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if (!$page = get_record("lesson_pages", "id", $pageid)) {
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error("Error: Add cluster: page record not found");
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}
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}
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$newpage = new stdClass;
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$newpage->lessonid = $lesson->id;
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$newpage->prevpageid = $pageid;
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if ($pageid != 0) {
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$newpage->nextpageid = $page->nextpageid;
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} else {
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$newpage->nextpageid = $page->id;
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}
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$newpage->qtype = LESSON_CLUSTER;
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$newpage->timecreated = $timenow;
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$newpage->title = get_string("clustertitle", "lesson");
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$newpage->contents = get_string("clustertitle", "lesson");
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if (!$newpageid = insert_record("lesson_pages", $newpage)) {
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error("Insert page: new page not inserted");
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}
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// update the linked list...
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if ($pageid != 0) {
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if (!set_field("lesson_pages", "nextpageid", $newpageid, "id", $pageid)) {
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error("Add cluster: unable to update link");
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}
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}
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if ($pageid == 0) {
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$page->nextpageid = $page->id;
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}
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if ($page->nextpageid) {
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// the new page is not the last page
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if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $page->nextpageid)) {
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error("Insert page: unable to update previous link");
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}
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}
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// ..and the single "answer"
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$newanswer = new stdClass;
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$newanswer->lessonid = $lesson->id;
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$newanswer->pageid = $newpageid;
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$newanswer->timecreated = $timenow;
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$newanswer->jumpto = LESSON_CLUSTERJUMP;
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if(!$newanswerid = insert_record("lesson_answers", $newanswer)) {
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error("Add cluster: answer record not inserted");
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}
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lesson_set_message(get_string('addedcluster', 'lesson'), 'notifysuccess');
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redirect("$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id");
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?>
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