Eloy Lafuente
110 lines
4.9 KiB
PHP
110 lines
4.9 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Recode content links in question texts.
|
|
* @param object $restore the restore metadata object.
|
|
* @return boolean whether the operation succeeded.
|
|
*/
|
|
function question_decode_content_links_caller($restore) {
|
|
global $CFG, $QTYPES, $DB;
|
|
$status = true;
|
|
$i = 1; //Counter to send some output to the browser to avoid timeouts
|
|
|
|
// Get a list of which question types have custom field that will need decoding.
|
|
$qtypeswithextrafields = array();
|
|
$qtypeswithhtmlanswers = array();
|
|
foreach ($QTYPES as $qtype => $qtypeclass) {
|
|
$qtypeswithextrafields[$qtype] = method_exists($qtypeclass, 'decode_content_links_caller');
|
|
$qtypeswithhtmlanswers[$qtype] = $qtypeclass->has_html_answers();
|
|
}
|
|
$extraprocessing = array();
|
|
|
|
$coursemodulecontexts = array();
|
|
$context = get_context_instance(CONTEXT_COURSE, $restore->course_id);
|
|
$coursemodulecontexts[] = $context->id;
|
|
$cms = $DB->get_records('course_modules', array('course'=>$restore->course_id), '', 'id');
|
|
if ($cms){
|
|
foreach ($cms as $cm){
|
|
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
|
|
$coursemodulecontexts[] = $context->id;
|
|
}
|
|
}
|
|
$coursemodulecontextslist = join($coursemodulecontexts, ',');
|
|
// Decode links in questions.
|
|
list($usql, $params) = $DB->get_in_or_equal(explode(',', $coursemodulecontextslist));
|
|
if ($questions = $DB->get_records_sql("SELECT q.id, q.qtype, q.questiontext, q.generalfeedback
|
|
FROM {question} q, {question_categories} qc
|
|
WHERE q.category = qc.id
|
|
AND qc.contextid $usql", $params)) {
|
|
|
|
foreach ($questions as $question) {
|
|
$questiontext = restore_decode_content_links_worker($question->questiontext, $restore);
|
|
$generalfeedback = restore_decode_content_links_worker($question->generalfeedback, $restore);
|
|
if ($questiontext != $question->questiontext || $generalfeedback != $question->generalfeedback) {
|
|
$question->questiontext = $questiontext;
|
|
$question->generalfeedback = $generalfeedback;
|
|
$DB->update_record('question', $question);
|
|
}
|
|
|
|
// Do some output.
|
|
if (++$i % 5 == 0 && !defined('RESTORE_SILENTLY')) {
|
|
echo ".";
|
|
if ($i % 100 == 0) {
|
|
echo "<br />";
|
|
}
|
|
backup_flush(300);
|
|
}
|
|
|
|
// Decode any questiontype specific fields.
|
|
if ($qtypeswithextrafields[$question->qtype]) {
|
|
if (!array_key_exists($question->qtype, $extraprocessing)) {
|
|
$extraprocessing[$question->qtype] = array();
|
|
}
|
|
$extraprocessing[$question->qtype][] = $question->id;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Decode links in answers.
|
|
if ($answers = $DB->get_records_sql("SELECT qa.id, qa.answer, qa.feedback, q.qtype
|
|
FROM {question_answers} qa, {question} q, {question_categories} qc
|
|
WHERE qa.question = q.id
|
|
AND q.category = qc.id
|
|
AND qc.contextid $usql", $params)) {
|
|
|
|
foreach ($answers as $answer) {
|
|
$feedback = restore_decode_content_links_worker($answer->feedback, $restore);
|
|
if ($qtypeswithhtmlanswers[$answer->qtype]) {
|
|
$answertext = restore_decode_content_links_worker($answer->answer, $restore);
|
|
} else {
|
|
$answertext = $answer->answer;
|
|
}
|
|
if ($feedback != $answer->feedback || $answertext != $answer->answer) {
|
|
unset($answer->qtype);
|
|
$answer->feedback = $feedback;
|
|
$answer->answer = $answertext;
|
|
$DB->update_record('question_answers', $answer);
|
|
}
|
|
|
|
// Do some output.
|
|
if (++$i % 5 == 0 && !defined('RESTORE_SILENTLY')) {
|
|
echo ".";
|
|
if ($i % 100 == 0) {
|
|
echo "<br />";
|
|
}
|
|
backup_flush(300);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Do extra work for certain question types.
|
|
foreach ($extraprocessing as $qtype => $questionids) {
|
|
if (!$QTYPES[$qtype]->decode_content_links_caller($questionids, $restore, $i)) {
|
|
$status = false;
|
|
}
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|