public function OpignoScorm::scormExtract in Opigno SCORM 3.x

Same name and namespace in other branches

1. 8 src/OpignoScorm.php \Drupal\opigno_scorm\OpignoScorm::scormExtract()

Extract and save Scorm data from Scorm package.

File

src/OpignoScorm.php, line 77

Class

OpignoScorm

Class OpignoScorm.

Namespace

Drupal\opigno_scorm

Code

public function scormExtract(File $file) {

  // Unzip Scorm package.
  $this
    ->unzipPackage($file);
  $extract_dir = 'public://opigno_scorm_extracted/scorm_' . $file
    ->id();

  // This is a standard: the manifest file will always be here.
  $manifest_file = $extract_dir . '/imsmanifest.xml';
  if (file_exists($manifest_file)) {

    // Prepare the Scorm DB entry.
    $scorm = (object) [
      'fid' => $file
        ->id(),
      'extracted_dir' => $extract_dir,
      'manifest_file' => $manifest_file,
      'manifest_id' => '',
      'metadata' => '',
    ];

    // Parse the manifest file and extract the data.
    $manifest_data = $this
      ->scormExtractManifestData($manifest_file);

    // Get the manifest ID, if it's given.
    if (!empty($manifest_data['manifest_id'])) {
      $scorm->manifest_id = $manifest_data['manifest_id'];
    }

    // If the file contains (global) metadata, serialize it.
    if (!empty($manifest_data['metadata'])) {
      $scorm->metadata = serialize($manifest_data['metadata']);
    }

    // Try saving the SCORM to the DB.
    if ($this
      ->scormSave($scorm)) {

      // Store each SCO.
      if (!empty($manifest_data['scos']['items'])) {
        foreach ($manifest_data['scos']['items'] as $i => $sco_item) {
          $sco = (object) [
            'scorm_id' => $scorm->id,
            'organization' => $sco_item['organization'],
            'identifier' => $sco_item['identifier'],
            'parent_identifier' => $sco_item['parent_identifier'],
            'launch' => $sco_item['launch'],
            'type' => $sco_item['type'],
            'scorm_type' => $sco_item['scorm_type'],
            'title' => $sco_item['title'],
            'weight' => empty($sco_item['weight']) ? $sco_item['weight'] : 0,
            'attributes' => $sco_item['attributes'],
          ];
          if ($this
            ->scormScoSave($sco)) {

            // @todo Store SCO attributes.
          }
          else {
            \Drupal::logger('opigno_scorm')
              ->error('An error occured when saving an SCO.');
          }
        }
      }
      return TRUE;
    }
    else {
      \Drupal::logger('opigno_scorm')
        ->error('An error occured when saving the SCORM package data.');
    }
  }
  return FALSE;
}