Club Drupal

 */

function date_ical_requirements($phase) {

  $requirements = array();

  // Ensure translations don't break at install time.

  $t = get_t();

  if ($phase == 'runtime') {

    if (!function_exists('libraries_detect')) {

      $requirements['date_ical'] = array(

      // Return immediately, since we can't even attempt to determine if iCalcreator is installed.

      return $requirements;

    }

    $library = libraries_detect('iCalcreator');

    if ($library && !empty($library['installed'])) {

      $requirements['date_ical'] = array(

      );

    }

  }

  return $requirements;

}

  // Drupal attempts to instantiate the old feeds plugin classes.

  registry_rebuild();

  cache_clear_all('plugins:feeds:plugins', 'cache');

  // Update all the importers which used DateIcalIcalcreatorParser to use

  // DateiCalFeedsParser instead.

  $importer_data = ctools_export_load_object('feeds_importer', 'all');

    $importer = feeds_importer($key);

    $importer_config = $importer->getConfig();

    $needs_update = ($importer_config['parser']['plugin_key'] == 'DateIcalIcalcreatorParser');

    $processor = $importer->processor;

    $processor_config = $processor->getconfig();

    // Also update importers which use the new parser, but have un-capitalized

        && !empty($processor_config['mappings'][0]['source'])) {

      $needs_update = (strtoupper($processor_config['mappings'][0]['source']) != $processor_config['mappings'][0]['source']);

    }

    if ($needs_update) {

      $importer->setPlugin('DateiCalFeedsParser');

      // Source keys are now capitalized, so we need to update the mappings.

      foreach ($processor_config['mappings'] as &$mapping) {

        $mapping['source'] = strtoupper($mapping['source']);

      }

      $processor->setConfig($processor_config);

      $importer->save();

      // When this importer object got created, a warning was issued about its

      // parser plugin being missing. We corrected that warning above, so we

      // should clear it out to avoid potential confusion.