.
namespace qbank_deletequestion;
/**
* Class helper of qbank_deletequestion.
*
* @package qbank_deletequestion
* @copyright 2023 The Open University
* @since Moodle 4.2
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class helper {
/**
* Get the confirmation message of delete question.
*
* @param array $questionids List of id questions.
* @param bool $deleteallversions Delete all question version or not.
* @return array List confirmation message.
*/
public static function get_delete_confirmation_message(array $questionids, bool $deleteallversions): array {
global $DB;
$questionnames = '';
$inuse = false;
$questionversions = [];
$countselectedquestion = count($questionids);
if ($deleteallversions) {
$versionsofeachquestionbankentry = \question_bank::get_all_versions_of_questions($questionids);
foreach ($versionsofeachquestionbankentry as $entryid => $versions) {
// Re-order to oldest first.
$versionsofeachquestionbankentry[$entryid] = array_reverse($versions, true);
// Flip the array to list question by question id. [ qid => version ].
$questionversions += array_flip($versions);
}
// Flatten an array.
$questionids = array_merge(...$versionsofeachquestionbankentry);
}
// Get the names of all the questions.
$questions = $DB->get_records_list('question', 'id', $questionids, '', 'id, name');
// Build the message.
foreach ($questionids as $questionid) {
if (questions_in_use([$questionid])) {
$questionnames .= '* ';
$inuse = true;
}
$questionname = format_string($questions[$questionid]->name);
if (isset($questionversions[$questionid])) {
$a = new \stdClass();
$a->name = $questionname;
$a->version = $questionversions[$questionid];
$questionnames .= get_string('questionnameandquestionversion',
'question', $a) . '
';
} else {
$questionnames .= $questionname . '
';
}
}
// Add the in-use message if required.
if ($inuse) {
$questionnames .= '
'.get_string('questionsinuse', 'question');
}
// Add in the right tile and message text.
$confirmtitle = [
'confirmtitle' => $countselectedquestion > 1 ? get_string('deleteversiontitle_plural',
'question') : get_string('deleteversiontitle', 'question'),
];
$message = get_string('deleteselectedquestioncheck', 'question', $questionnames);
if ($deleteallversions) {
$confirmtitle = [
'confirmtitle' => get_string('deletequestiontitle', 'question'),
];
$message = get_string('deletequestioncheck', 'question', $questionnames);
if ($countselectedquestion > 1) {
$confirmtitle = [
'confirmtitle' => get_string('deletequestiontitle_plural', 'question'),
];
$message = get_string('deletequestionscheck', 'question', $questionnames);
}
}
return [$confirmtitle, $message];
}
/**
* Delete questions has (single/multiple) version.
*
* @param array $questionids List of questionid.
* @param bool $deleteallversions Delete all question version or not.
*/
public static function delete_questions(array $questionids, bool $deleteallversions): void {
if ($deleteallversions) {
// Get all the question id from multidimensional array.
$listofquestions = \question_bank::get_all_versions_of_questions($questionids);
// Flatten an array.
$questionids = array_merge(...$listofquestions);
}
foreach ($questionids as $questionid) {
$questionid = (int) $questionid;
question_require_capability_on($questionid, 'edit');
question_delete_question($questionid);
}
}
}