function linked_field_update_7002 in Linked Field 7

Update fields which contain Linked Field settings.

File

./linked_field.install, line 106

Contains install and update functions for Linked Field.

Code

function linked_field_update_7002(&$sandbox) {

  // Getting all fields.
  $field_info = field_info_fields();
  $fields = array();

  // We iterate all fields and collect them
  // with their entity type and and all bundles.
  foreach ($field_info as $field) {
    foreach ($field['bundles'] as $entity_type => $bundles) {
      foreach ($bundles as $bundle) {
        $fields[] = array(
          'field_name' => $field['field_name'],
          'entity_type' => $entity_type,
          'bundle' => $bundle,
        );
      }
    }
  }

  // We initialize the batch process.
  if (!isset($sandbox['progress'])) {
    $sandbox['progress'] = 0;
    $sandbox['current_field'] = 0;
    $sandbox['max'] = count($fields);
  }

  // Getting current setting.
  $field = $fields[$sandbox['current_field']];

  // Getting field instance and modify the settings.
  $instance = db_select('field_config_instance', 'fci')
    ->fields('fci', array(
    'data',
  ))
    ->condition('field_name', $field['field_name'])
    ->condition('entity_type', $field['entity_type'])
    ->condition('bundle', $field['bundle'])
    ->execute()
    ->fetchField();
  $instance = unserialize($instance);
  foreach ($instance['display'] as &$display) {
    $settings =& $display['settings'];

    // Modify settings if 'advanced' array doesn't exist.
    if (isset($settings['linked_field']) && !isset($settings['linked_field']['advanced'])) {
      foreach ($settings['linked_field'] as $name => $value) {
        if ($name != 'linked' && $name != 'destination' && $name != 'advanced') {

          // We move the setting into the 'advanced' array.
          $settings['linked_field']['advanced'][$name] = $value;
          unset($settings['linked_field'][$name]);
        }
      }
    }
  }
  $instance = serialize($instance);

  // Finally we update the current field instance.
  db_update('field_config_instance')
    ->fields(array(
    'data' => $instance,
  ))
    ->condition('field_name', $field['field_name'])
    ->condition('entity_type', $field['entity_type'])
    ->condition('bundle', $field['bundle'])
    ->execute();

  // Prepeare the values for the next step.
  $sandbox['progress']++;
  $sandbox['current_field']++;

  // Update process is finished when all settings have been ran.
  $sandbox['#finished'] = $sandbox['progress'] / $sandbox['max'];

  // Clear caches if all fields are processed.
  if (intval($sandbox['#finished'])) {
    field_cache_clear();
  }
}