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<?php
/****************** update page ************************************/
if (!isteacher($course->id)) {
error("Only teachers can look at this page");
}
confirm_sesskey();
$redirect = optional_param('redirect', '', PARAM_ALPHA);
$timenow = time();
$form = data_submitted();
$page = new stdClass;
$page->id = clean_param($form->pageid, PARAM_INT);
// check to see if the cancel button was pushed
if (optional_param('cancel', '', PARAM_ALPHA)) {
if ($redirect == 'navigation') {
// redirect to viewing the page
redirect("view.php?id=$cm->id&action=navigation&pageid=$page->id");
} else {
redirect("view.php?id=$cm->id");
}
}
$page->timemodified = $timenow;
$page->qtype = clean_param($form->qtype, PARAM_INT);
if (isset($form->qoption)) {
$page->qoption = clean_param($form->qoption, PARAM_INT);
} else {
$page->qoption = 0;
}
if (isset($form->layout)) {
$page->layout = clean_param($form->layout, PARAM_INT);
} else {
$page->layout = 0;
}
if (isset($form->display)) {
$page->display = clean_param($form->display, PARAM_INT);
} else {
$page->display = 0;
}
$page->title = clean_param($form->title, PARAM_CLEANHTML);
$page->contents = trim($form->contents);
$page->title = addslashes($page->title);
if (!update_record("lesson_pages", $page)) {
error("Update page: page not updated");
}
if ($page->qtype == LESSON_ENDOFBRANCH || $page->qtype == LESSON_ESSAY || $page->qtype == LESSON_CLUSTER || $page->qtype == LESSON_ENDOFCLUSTER) {
// there's just a single answer with a jump
$oldanswer = new stdClass;
$oldanswer->id = $form->answerid[0];
$oldanswer->timemodified = $timenow;
$oldanswer->jumpto = clean_param($form->jumpto[0], PARAM_INT);
if (isset($form->score[0])) {
$oldanswer->score = clean_param($form->score[0], PARAM_INT);
}
// delete other answers this if mainly for essay questions. If one switches from using a qtype like Multichoice,
// then switches to essay, the old answers need to be removed because essay is
// supposed to only have one answer record
if ($answers = get_records_select("lesson_answers", "pageid = ".$page->id)) {
foreach ($answers as $answer) {
if ($answer->id != clean_param($form->answerid[0], PARAM_INT)) {
if (!delete_records("lesson_answers", "id", $answer->id)) {
error("Update page: unable to delete answer record");
}
}
}
}
if (!update_record("lesson_answers", $oldanswer)) {
error("Update page: EOB not updated");
}
} else {
// it's an "ordinary" page
if ($page->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; $i++) {
// strip tags because the editor gives <p><br />...
// also save any answers where the editor is (going to be) used
if ((!empty($form->answer[$i]) and trim(strip_tags($form->answer[$i]))) or isset($form->answereditor[$i]) or isset($form->responseeditor[$i])) {
if ($form->answerid[$i]) {
$oldanswer = new stdClass;
$oldanswer->id = clean_param($form->answerid[$i], PARAM_INT);
if (!isset($form->answereditor[$i])) {
$form->answereditor[$i] = 0;
}
if (!isset($form->responseeditor[$i])) {
$form->responseeditor[$i] = 0;
}
$oldanswer->flags = $form->answereditor[$i] * LESSON_ANSWER_EDITOR +
$form->responseeditor[$i] * LESSON_RESPONSE_EDITOR;
$oldanswer->timemodified = $timenow;
$oldanswer->answer = trim($form->answer[$i]);
if (isset($form->response[$i])) {
$oldanswer->response = trim($form->response[$i]);
} else {
$oldanswer->response = '';
}
$oldanswer->jumpto = clean_param($form->jumpto[$i], PARAM_INT);
if (isset($form->score[$i])) {
$oldanswer->score = clean_param($form->score[$i], PARAM_INT);
}
if (!update_record("lesson_answers", $oldanswer)) {
error("Update page: answer $i not updated");
}
} else {
// it's a new answer
$newanswer = new stdClass; // need to clear id if more than one new answer is ben added
$newanswer->lessonid = $lesson->id;
$newanswer->pageid = $page->id;
if (!isset($form->answereditor[$i])) {
$form->answereditor[$i] = 0;
}
if (!isset($form->responseeditor[$i])) {
$form->responseeditor[$i] = 0;
}
$newanswer->flags = $form->answereditor[$i] * LESSON_ANSWER_EDITOR +
$form->responseeditor[$i] * LESSON_RESPONSE_EDITOR;
$newanswer->timecreated = $timenow;
$newanswer->answer = trim($form->answer[$i]);
if (isset($form->response[$i])) {
$newanswer->response = trim($form->response[$i]);
}
$newanswer->jumpto = clean_param($form->jumpto[$i], PARAM_INT);
if (isset($form->score[$i])) {
$newanswer->score = clean_param($form->score[$i], PARAM_INT);
}
$newanswerid = insert_record("lesson_answers", $newanswer);
if (!$newanswerid) {
error("Update page: answer record not inserted");
}
}
} else {
if ($form->qtype == LESSON_MATCHING) {
if ($i >= 2) {
if ($form->answerid[$i]) {
// need to delete blanked out answer
if (!delete_records("lesson_answers", "id", clean_param($form->answerid[$i], PARAM_INT))) {
error("Update page: unable to delete answer record");
}
}
} else {
$oldanswer = new stdClass;
$oldanswer->id = clean_param($form->answerid[$i], PARAM_INT);
if (!isset($form->answereditor[$i])) {
$form->answereditor[$i] = 0;
}
if (!isset($form->responseeditor[$i])) {
$form->responseeditor[$i] = 0;
}
$oldanswer->flags = $form->answereditor[$i] * LESSON_ANSWER_EDITOR +
$form->responseeditor[$i] * LESSON_RESPONSE_EDITOR;
$oldanswer->timemodified = $timenow;
$oldanswer->answer = NULL;
if (!update_record("lesson_answers", $oldanswer)) {
error("Update page: answer $i not updated");
}
}
} elseif (!empty($form->answerid[$i])) {
// need to delete blanked out answer
if (!delete_records("lesson_answers", "id", clean_param($form->answerid[$i], PARAM_INT))) {
error("Update page: unable to delete answer record");
}
}
}
}
}
if ($form->redisplay) {
redirect("lesson.php?id=$cm->id&action=editpage&pageid=$page->id&redirect=$redirect");
} else if ($redirect == 'navigation') {
// takes us back to viewing the page
redirect("view.php?id=$cm->id&action=navigation&pageid=$page->id", get_string('updatedpage', 'lesson'));
} else {
redirect("view.php?id=$cm->id", get_string('updatedpage', 'lesson'));
}
?>
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