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MDL-36683 qtype match restore: better subq indentification.

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This is very similar to what MDL-30018 did for question_answers.
This commit is contained in:
Tim Hunt 2012-11-19 17:46:25 +00:00
parent 2d7c5eeeea
commit acb9f7f47d
1 changed files with 19 additions and 0 deletions
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19
question/type/match/backup/moodle2/restore_qtype_match_plugin.class.php
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@ -137,6 +137,25 @@ class restore_qtype_match_plugin extends restore_qtype_plugin {
array($newquestionid, $data->questiontext, $data->answertext), array($newquestionid, $data->questiontext, $data->answertext),
'id', IGNORE_MULTIPLE); 'id', IGNORE_MULTIPLE);
// Not able to find the answer, let's try cleaning the answertext
// of all the question answers in DB as slower fallback. MDL-36683 / MDL-30018.
if (!$sub) {
$params = array('question' => $newquestionid);
$potentialsubs = $DB->get_records('question_match_sub', array('question' => $newquestionid), '', 'id, questiontext, answertext');
foreach ($potentialsubs as $potentialsub) {
// Clean in the same way than {@link xml_writer::xml_safe_utf8()}.
$cleanquestion = preg_replace('/[\x-\x8\xb-\xc\xe-\x1f\x7f]/is', '', $potentialsub->questiontext); // Clean CTRL chars.
$cleanquestion = preg_replace("/\r\n|\r/", "\n", $cleanquestion); // Normalize line ending.
$cleananswer = preg_replace('/[\x-\x8\xb-\xc\xe-\x1f\x7f]/is', '', $potentialsub->answertext); // Clean CTRL chars.
$cleananswer = preg_replace("/\r\n|\r/", "\n", $cleananswer); // Normalize line ending.
if ($cleanquestion === $data->questiontext && $cleananswer == $data->answertext) {
$sub = $potentialsub;
}
}
}
// Found, let's create the mapping // Found, let's create the mapping
if ($sub) { if ($sub) {
$this->set_mapping('question_match_sub', $oldid, $sub->id); $this->set_mapping('question_match_sub', $oldid, $sub->id);