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MDL-33863 question restore: better hint identification.

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This is very similar to what MDL-30018 did for question_answers.
This commit is contained in:
Jean-Michel Vedrine 2012-11-19 23:27:44 +00:00 committed by Tim Hunt
parent 5c4685f0ad
commit 334783a796
1 changed files with 16 additions and 0 deletions
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16
backup/moodle2/restore_stepslib.php
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@ -3128,6 +3128,22 @@ class restore_create_categories_and_questions extends restore_structure_step {
AND ' . $DB->sql_compare_text('hint', 255) . ' = ' . $DB->sql_compare_text('?', 255);
$params = array($newquestionid, $data->hint);
$newitemid = $DB->get_field_sql($sql, $params);
// Not able to find the hint, let's try cleaning the hint text
// of all the question's hints in DB as slower fallback. MDL-33863.
if (!$newitemid) {
$potentialhints = $DB->get_records('question_hints',
array('questionid' => $newquestionid), '', 'id, hint');
foreach ($potentialhints as $potentialhint) {
// Clean in the same way than {@link xml_writer::xml_safe_utf8()}.
$cleanhint = preg_replace('/[\x-\x8\xb-\xc\xe-\x1f\x7f]/is','', $potentialhint->hint); // Clean CTRL chars.
$cleanhint = preg_replace("/\r\n|\r/", "\n", $cleanhint); // Normalize line ending.
if ($cleanhint === $data->hint) {
$newitemid = $data->id;
}
}
}
// If we haven't found the newitemid, something has gone really wrong, question in DB
// is missing hints, exception
if (!$newitemid) {