public function ScormActivityAnswer::getScore in Opigno module 3.x

Same name and namespace in other branches

1. 8 ActivityTypes/opigno_scorm_activity/src/Plugin/ActivityAnswer/ScormActivityAnswer.php \Drupal\opigno_scorm_activity\Plugin\ActivityAnswer\ScormActivityAnswer::getScore()

Score logic for specified activity.

Overrides ActivityAnswerPluginBase::getScore

File

ActivityTypes/opigno_scorm_activity/src/Plugin/ActivityAnswer/ScormActivityAnswer.php, line 28

Class

ScormActivityAnswer

Class ScormActivityAnswer.

Namespace

Drupal\opigno_scorm_activity\Plugin\ActivityAnswer

Code

public function getScore(OpignoAnswerInterface $answer) {
  $db_connection = \Drupal::service('database');
  $score = 0;
  $user = \Drupal::currentUser();
  $activity = $answer
    ->getActivity();
  $scorm_controller = \Drupal::service('opigno_scorm.scorm');
  $scorm_file = $activity
    ->get('opigno_scorm_package')->entity;
  $scorm = $scorm_controller
    ->scormLoadByFileEntity($scorm_file);

  // Get SCORM API version.
  $metadata = unserialize($scorm->metadata);
  if (strpos($metadata['schemaversion'], '1.2') !== FALSE) {
    $scorm_version = '1.2';
    $completion_key = 'cmi.core.lesson_status';
    $raw_key = 'cmi.core.score.raw';
    $max_key = 'cmi.core.score.max';
    $min_key = 'cmi.core.score.min';
  }
  else {
    $scorm_version = '2004';
    $completion_key = 'cmi.completion_status';
    $raw_key = 'cmi.score.raw';
    $max_key = 'cmi.score.max';
    $min_key = 'cmi.score.min';
  }

  // We get the latest result.
  // The way the SCORM API works always overwrites attempts
  // for the global CMI storage.
  // The result stored is always the latest.
  // Get it, and presist it again in the user results table
  // so we can track results through time.
  $scaled = opigno_scorm_scorm_cmi_get($user
    ->id(), $scorm->id, 'cmi.score.scaled', '');
  $raw = opigno_scorm_scorm_cmi_get($user
    ->id(), $scorm->id, $raw_key, '');
  $max = opigno_scorm_scorm_cmi_get($user
    ->id(), $scorm->id, $max_key, '');
  $min = opigno_scorm_scorm_cmi_get($user
    ->id(), $scorm->id, $min_key, '');
  $min = !empty($min) ? $min : 0;
  $completion = opigno_scorm_scorm_cmi_get($user
    ->id(), $scorm->id, $completion_key, '');
  if (isset($raw) && is_numeric($raw) && ($scorm_version == '1.2' || $scorm_version == '2004' && (!isset($scaled) || !is_numeric($scaled)))) {
    if (empty($max)) {
      $scaled = $raw / 100;
    }
    elseif ($max > $min) {
      $scaled = ($raw - $min) / ($max - $min);
    }
  }
  if (empty($scaled) || !is_numeric($scaled)) {
    if (!empty($completion) && in_array($completion, [
      "completed",
      "passed",
    ])) {
      $scaled = 1;
    }
    else {
      $scaled = 0;
    }
  }
  $score_query = $db_connection
    ->select('opigno_module_relationship', 'omr')
    ->fields('omr', [
    'max_score',
  ])
    ->condition('omr.parent_id', $answer
    ->getModule()
    ->id())
    ->condition('omr.parent_vid', $answer
    ->getModule()
    ->getRevisionId())
    ->condition('omr.child_id', $activity
    ->id())
    ->condition('omr.child_vid', $activity
    ->getRevisionId());
  $score_result = $score_query
    ->execute()
    ->fetchObject();
  if ($score_result) {
    $score = $score_result->max_score * $scaled;
  }
  return $score;
}