function exif_custom_process_entity in EXIF Custom 7

Process a given entity to see if it has EXIF data to be saved.

Parameters

object $file: The file being processed.

1 call to exif_custom_process_entity()

exif_custom_entity_presave in ./exif_custom.module

Implements hook_entity_presave().

File

./exif_custom.module, line 148

Primary hook implementations for EXIF Custom.

Code

function exif_custom_process_entity(&$file) {
  if (!isset($file->type) || !isset($file->uri)) {
    return;
  }
  if ($file->type != 'image') {
    return;
  }
  if (arg(3) == 'exif_custom') {
    return;
  }

  // Media Browser saves in two steps: first a temporary file is saved after
  // which the user is presented with a form an can edit fields on the file.
  // After potentially updating the file fields the user presses save and the
  // file is made permanent and saved. As exif_custom_process_entity is invoked
  // in both situations we need to detect the last save and avoid mapping as it
  // would overwrite any changes the user made.
  if (arg(0) == 'media' && arg(1) == 'browser' && $file->status == FILE_STATUS_PERMANENT) {
    return;
  }

  // Skip mapping if the file has a path that is excluded.
  $patterns = variable_get('exif_custom_exclude_paths', NULL);
  if (!empty($patterns) && drupal_match_path($file->uri, $patterns)) {
    return;
  }
  $data = exif_custom_get_exif_fields($file->uri, TRUE);
  if (empty($data)) {
    return;
  }
  $mappings = exif_custom_get_mapping();
  if (empty($mappings)) {
    return;
  }
  $lang = entity_language('file', $file);
  if (!$lang) {
    $lang = LANGUAGE_NONE;
  }
  foreach ($mappings as $field => $values) {

    // Ignore fields that aren't present.
    if (!isset($data[$values->exif_field])) {
      continue;
    }

    // File name is special case.
    if ($field == 'filename') {
      $file->filename = $data[$values->exif_field];
      continue;
    }

    // Optionally process fields which have already been imported. This avoids
    // re-processing files which have already been saved.
    if (!variable_get('exif_custom_overwrite_existing') && !empty($file->{$field})) {
      continue;
    }
    $array = array();
    $field_info = field_info_field($field);
    $instance_info = field_info_instance('file', $field, 'image');
    switch ($field_info['type']) {
      case 'taxonomy_term_reference':
        $vids = array();
        foreach ($field_info['settings']['allowed_values'] as $allowed_value) {
          $vocabulary = taxonomy_vocabulary_machine_name_load($allowed_value['vocabulary']);
          if ($allowed_value['vocabulary'] === 0) {
            break;
          }
          $vids[$vocabulary->vid] = $vocabulary;
        }
        $element = array();
        $element['#value'] = isset($data[$values->exif_field]) ? $data[$values->exif_field] : FALSE;
        $form_state = array();
        $array = array();
        $array[$lang] = _exif_custom_taxonomy_autocomplete_validate($element, $vids);
        break;
      case 'country':
        $countries = array_flip(countries_get_countries('name'));
        if (isset($countries[$data[$values->exif_field]])) {
          $array[$lang][0]['iso2'] = $countries[$data[$values->exif_field]];
        }
        break;
      case 'creative_commons':
        module_load_include('module', 'creative_commons');
        $licence_by_id = array(
          'CC_NONE' => 1,
          'CC_BY' => 2,
          'CC_BY_SA' => 3,
          'CC_BY_ND' => 4,
          'CC_BY_NC' => 5,
          'CC_BY_NC_SA' => 6,
          'CC_BY_NC_ND' => 7,
          'CC_0' => 8,
          'CC_PD' => 9,
        );
        $licence_by_id = array_merge($licence_by_id, array_flip(creative_commons_get_licence_types()));
        if (isset($licence_by_id[$data[$values->exif_field]])) {
          $array[$lang]['0']['licence'] = $licence_by_id[$data[$values->exif_field]];
        }
        break;
      case 'date':
        $array[$lang]['0']['value'] = strtotime($data[$values->exif_field]);
        break;
      default:
        $array[$lang]['0']['value'] = $data[$values->exif_field];
    }

    // Set the values.
    $file->{$field} = $array;
  }
}