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|
<?php
/****************** insert page ************************************/
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
confirm_sesskey();
// check to see if the cancel button was pushed
if (optional_param('cancel', '', PARAM_ALPHA)) {
redirect("view.php?id=$cm->id");
}
$timenow = time();
$form = data_submitted();
$newpage = new stdClass;
$newanswer = new stdClass;
if ($form->pageid) {
// the new page is not the first page
if (!$page = get_record("lesson_pages", "id", $form->pageid)) {
error("Insert page: page record not found");
}
$newpage->lessonid = clean_param($lesson->id, PARAM_INT);
$newpage->prevpageid = clean_param($form->pageid, PARAM_INT);
$newpage->nextpageid = clean_param($page->nextpageid, PARAM_INT);
$newpage->timecreated = $timenow;
$newpage->qtype = $form->qtype;
if (isset($form->qoption)) {
$newpage->qoption = clean_param($form->qoption, PARAM_INT);
} else {
$newpage->qoption = 0;
}
if (isset($form->layout)) {
$newpage->layout = clean_param($form->layout, PARAM_INT);
} else {
$newpage->layout = 0;
}
if (isset($form->display)) {
$newpage->display = clean_param($form->display, PARAM_INT);
} else {
$newpage->display = 0;
}
$newpage->title = clean_param($form->title, PARAM_CLEANHTML);
$newpage->contents = trim($form->contents);
$newpage->title = addslashes($newpage->title);
$newpageid = insert_record("lesson_pages", $newpage);
if (!$newpageid) {
error("Insert page: new page not inserted");
}
// update the linked list (point the previous page to this new one)
if (!set_field("lesson_pages", "nextpageid", $newpageid, "id", $newpage->prevpageid)) {
error("Insert page: unable to update next link");
}
if ($page->nextpageid) {
// new page is not the last page
if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $page->nextpageid)) {
error("Insert page: unable to update previous link");
}
}
} else {
// new page is the first page
// get the existing (first) page (if any)
if (!$page = get_record_select("lesson_pages", "lessonid = $lesson->id AND prevpageid = 0")) {
// there are no existing pages
$newpage->lessonid = $lesson->id;
$newpage->prevpageid = 0; // this is a first page
$newpage->nextpageid = 0; // this is the only page
$newpage->timecreated = $timenow;
$newpage->qtype = clean_param($form->qtype, PARAM_INT);
if (isset($form->qoption)) {
$newpage->qoption = clean_param($form->qoption, PARAM_INT);
} else {
$newpage->qoption = 0;
}
if (isset($form->layout)) {
$newpage->layout = clean_param($form->layout, PARAM_INT);
} else {
$newpage->layout = 0;
}
if (isset($form->display)) {
$newpage->display = clean_param($form->display, PARAM_INT);
} else {
$newpage->display = 0;
}
$newpage->title = clean_param($form->title, PARAM_CLEANHTML);
$newpage->contents = trim($form->contents);
$newpage->title = addslashes($newpage->title);
$newpageid = insert_record("lesson_pages", $newpage);
if (!$newpageid) {
error("Insert page: new first page not inserted");
}
} else {
// there are existing pages put this at the start
$newpage->lessonid = $lesson->id;
$newpage->prevpageid = 0; // this is a first page
$newpage->nextpageid = $page->id;
$newpage->timecreated = $timenow;
$newpage->qtype = clean_param($form->qtype, PARAM_INT);
if (isset($form->qoption)) {
$newpage->qoption = clean_param($form->qoption, PARAM_INT);
} else {
$newpage->qoption = 0;
}
if (isset($form->layout)) {
$newpage->layout = clean_param($form->layout, PARAM_INT);
} else {
$newpage->layout = 0;
}
if (isset($form->display)) {
$newpage->display = clean_param($form->display, PARAM_INT);
} else {
$newpage->display = 0;
}
$newpage->title = clean_param($form->title, PARAM_CLEANHTML);
$newpage->contents = trim($form->contents);
$newpage->title = addslashes($newpage->title);
$newpageid = insert_record("lesson_pages", $newpage);
if (!$newpageid) {
error("Insert page: first page not inserted");
}
// update the linked list
if (!set_field("lesson_pages", "prevpageid", $newpageid, "id", $newpage->nextpageid)) {
error("Insert page: unable to update link");
}
}
}
// now add the answers
if ($form->qtype == LESSON_ESSAY) {
$newanswer->lessonid = $lesson->id;
$newanswer->pageid = $newpageid;
$newanswer->timecreated = $timenow;
if (isset($form->jumpto[0])) {
$newanswer->jumpto = clean_param($form->jumpto[0], PARAM_INT);
}
if (isset($form->score[0])) {
$newanswer->score = clean_param($form->score[0], PARAM_INT);
}
$newanswerid = insert_record("lesson_answers", $newanswer);
if (!$newanswerid) {
error("Insert Page: answer record not inserted");
}
} else {
if ($form->qtype == LESSON_MATCHING) {
// need to add two to offset correct response and wrong response
$lesson->maxanswers = $lesson->maxanswers + 2;
}
for ($i = 0; $i < $lesson->maxanswers; $i++) {
if (!empty($form->answer[$i]) and trim(strip_tags($form->answer[$i]))) { // strip_tags because the HTML editor adds <p><br />...
$newanswer->lessonid = $lesson->id;
$newanswer->pageid = $newpageid;
$newanswer->timecreated = $timenow;
$newanswer->answer = trim($form->answer[$i]);
if (isset($form->response[$i])) {
$newanswer->response = trim($form->response[$i]);
}
if (isset($form->jumpto[$i])) {
$newanswer->jumpto = clean_param($form->jumpto[$i], PARAM_INT);
}
if ($lesson->custom) {
if (isset($form->score[$i])) {
$newanswer->score = clean_param($form->score[$i], PARAM_INT);
}
}
$newanswerid = insert_record("lesson_answers", $newanswer);
if (!$newanswerid) {
error("Insert Page: answer record $i not inserted");
}
} else {
if ($form->qtype == LESSON_MATCHING) {
if ($i < 2) {
$newanswer->lessonid = $lesson->id;
$newanswer->pageid = $newpageid;
$newanswer->timecreated = $timenow;
$newanswerid = insert_record("lesson_answers", $newanswer);
if (!$newanswerid) {
error("Insert Page: answer record $i not inserted");
}
}
} else {
break;
}
}
}
}
redirect("view.php?id=$cm->id", get_string('insertedpage', 'lesson'));
?>
|
