ting_sfx.install

<?php
/**
 * @file
 * Install, update and uninstall functions for the ting ting_infomedia module.
 */

/**
 * Implements hook_ding_entity_fields().
 *
 * field-definitions.
 */
function ting_sfx_ding_entity_fields() {
  return array(
    'ting_sfx' => array(
      'field' => array(
        'locked' => TRUE,
        'storage' => array(
          'type' => 'virtual_field',
        ),
      ),
      'instance' => array(
        'label' => t('Search other sites'),
      ),
    ),
  );
}

/**
 * Implements hook_requirements().
 */
function ting_sfx_requirements($phase) {
  $requirements = array();

  if ($phase == 'runtime') {
    $url = variable_get('ting_sfx_url');

    if (!isset($url)) {
      $t = get_t();
      $requirements['service_urls'] = array(
        'title' => $t('SFX settings'),
        'value' => l($t('Url for SFX link resolver must be set in admin'), 'admin/config/ting/settings'),
        'severity' => REQUIREMENT_ERROR,
      );
    }
  }

  return $requirements;
}

/**
 * Convert blackhole field storage to virtual field.
 */
function ting_sfx_update_7000() {
  return db_update('field_config')
    ->fields(array(
      'storage_type' => 'virtual_field',
      'storage_module' => 'virtual_field',
    ))
    ->condition('module', 'ting_sfx')
    ->execute();
}