function quiz_set_questions in Quiz 6.5
Same name and namespace in other branches
- 8.4 quiz.module \quiz_set_questions()
- 6.6 quiz.module \quiz_set_questions()
- 6.3 quiz.module \quiz_set_questions()
- 6.4 quiz.module \quiz_set_questions()
- 7.6 quiz.module \quiz_set_questions()
- 7 quiz.module \quiz_set_questions()
- 7.4 quiz.module \quiz_set_questions()
- 7.5 quiz.module \quiz_set_questions()
Sets the questions that are assigned to a quiz.
Parameters
$quiz: The quiz to modify.
$questions: An array of questions.
$set_new_revision: If TRUE, a new revision will be generated. Note that saving quiz questions unmodified will still generate a new revision of the quiz if this is set to TRUE. Why? For a few reasons:
- All of the questions are updated to their latest VID. That is supposed to be a feature.
- All weights are updated
- All status flags are updated
Return value
Boolean TRUE if update was successful, FALSE otherwise.
1 call to quiz_set_questions()
- quiz_questions_form_submit in ./
quiz.admin.inc - Submit function for quiz_questions.
File
- ./
quiz.module, line 1845 - Quiz Module
Code
function quiz_set_questions(&$quiz, $questions, $set_new_revision = FALSE) {
if ($set_new_revision) {
// Create a new Quiz VID, even if nothing changed.
$quiz->revision = 1;
node_save($quiz);
}
// XXX: Should we be verifying here that the nodes submitted as $questions are actually
// recognized question types? It adds quite a performance hit, but could be beneficial.
// When node_save() calls all of the node API hooks, old quiz info is automatically
// inserted into quiz_node_relationship. We could get clever and try to do strategic
// updates/inserts/deletes, but that method has already proven error prone as the module
// has gained complexity (See 5.x-2.0-RC2).
// So we go with the brute force method:
db_query('DELETE FROM {quiz_node_relationship} WHERE parent_nid = %d AND parent_vid = %d', $quiz->nid, $quiz->vid);
if (empty($questions)) {
return TRUE;
// This is not an error condition.
}
// Now we do an insert of everything in the quiz. (Note that we are using a subselect to get the most recent vid.)
$sql = "INSERT INTO {quiz_node_relationship} (parent_nid, parent_vid, child_nid, child_vid, question_status, weight)\n VALUES (%d, %d, %d, (SELECT vid FROM {node} WHERE nid = %d), %d, %d)";
foreach ($questions as $question) {
if ($question->state != QUESTION_NEVER) {
//drupal_set_message(t("Doing insert for %nid-%vid-%cnid-%cvid: %stat", array('%nid' => $quiz->nid, '%vid' => $quiz->vid, '%cnid' => $question->nid, '%cvid' => $question->vid, '%stat' => $question->status)));
$result = db_query($sql, $quiz->nid, $quiz->vid, $question->nid, $question->nid, $question->state, $question->weight);
}
}
return TRUE;
}