function opigno_statistics_app_query_course_quiz_completion_percentage in Opigno Statistics App 7

Retrieve course quiz completion percentage (cached for 1 day)

Parameters

int $course_nid:

int $month_year:

boolean $filter_month:

Return value

int

1 call to opigno_statistics_app_query_course_quiz_completion_percentage()

opigno_statistics_app_present_course_general_statistics in includes/group/course/presenters.inc

Present course general statistics

File

includes/group/course/queries.inc, line 55

Code

function opigno_statistics_app_query_course_quiz_completion_percentage($course_nid, $month_year, $filter_month) {
  $cache_key = __FUNCTION__ . ':' . $course_nid . ':' . $month_year . ':' . $filter_month;
  $cached_object = cache_get($cache_key);
  if ($cached_object) {
    $percentage = $cached_object->data;
  }
  else {
    if ($filter_month) {
      $result = db_query('SELECT AVG(cd.status) FROM {opigno_statistics_user_course_details} cd
                          INNER JOIN opigno_statistics_user_course uc
                          ON cd.opigno_statistics_user_course_fk = uc.opigno_statistics_user_course_pk
                          WHERE uc.course_nid = :course_nid
                          AND cd.type = :type
                          AND DATE_FORMAT(FROM_UNIXTIME(cd.timestamp),\'%m-%Y\') = DATE_FORMAT(FROM_UNIXTIME(:timestamp),\'%m-%Y\')', array(
        ':course_nid' => $course_nid,
        ':type' => 'quiz',
        ':timestamp' => $month_year,
      ))
        ->fetchCol();
    }
    else {
      $result = db_query('SELECT AVG(cd.status) FROM {opigno_statistics_user_course_details} cd
                          INNER JOIN opigno_statistics_user_course uc
                          ON cd.opigno_statistics_user_course_fk = uc.opigno_statistics_user_course_pk
                          WHERE uc.course_nid = :course_nid
                          AND cd.type = :type
                          AND DATE_FORMAT(FROM_UNIXTIME(cd.timestamp),\'%Y\') = DATE_FORMAT(FROM_UNIXTIME(:timestamp),\'%Y\')', array(
        ':course_nid' => $course_nid,
        ':type' => 'quiz',
        ':timestamp' => $month_year,
      ))
        ->fetchCol();
    }
    $percentage = $result[0];
    cache_set($cache_key, $percentage, 'cache', time() + 7200);

    // 7200s = 2h cache
  }
  return $percentage;
}