function question_category_isused in Quiz 6.5

Same name and namespace in other branches

1. 6.6 includes/moodle/lib/questionlib.php \question_category_isused()

Tests whether a category is in use by any activity module

Parameters

integer $categoryid:

boolean $recursive Whether to examine category children recursively:

Return value

boolean

File

includes/moodle/lib/questionlib.php, line 395

Code

function question_category_isused($categoryid, $recursive = false) {

  //Look at each question in the category
  if ($questions = get_records('question', 'category', $categoryid)) {
    foreach ($questions as $question) {
      if (count(question_list_instances($question->id))) {
        return true;
      }
    }
  }

  //Look under child categories recursively
  if ($recursive) {
    if ($children = get_records('question_categories', 'parent', $categoryid)) {
      foreach ($children as $child) {
        if (question_category_isused($child->id, $recursive)) {
          return true;
        }
      }
    }
  }
  return false;
}