<?php


/**
 * Implements hook_features_export_alter().
 *
 * For a given feature, add field groups that contain any fields that
 * are a part of this feature.  Also, add parent groups of any groups
 * that are a part of this feature.
 */
function field_group_features_export_alter(&$export, $module_name) {
  //Make sure we have fresh data by loading directly.
  ctools_include('export');
  $field_groups = ctools_export_load_object('field_group');

  //Add fieldgroups based on the fields that are present.
  if (!empty($export['features']['field'])) {
    foreach ($export['features']['field'] as $field) {
      list($entity_type, $bundle, $field_name) = explode('-', $field);

      foreach ($field_groups as $group_id => $group) {
        if ($group->entity_type == $entity_type && $group->bundle == $bundle
          && in_array($field_name, $group->data['children'])) {
          $export['features']['field_group'][$group_id] = $group_id;
        }
      }
    }
  }

  //Add any parent field groups that haven't been selected.
  if (!empty($export['features']['field_group'])) {
    foreach ($export['features']['field_group'] as $id) {
      $group = isset($field_groups[$id]) ? $field_groups[$id] : FALSE;

      if ($group && !empty($group->parent_name)) {
        $parent_id = $group->parent_name . '|' . $group->entity_type . '|' . $group->bundle . '|' . $group->mode;
        $parent_group = isset($field_groups[$parent_id]) ? $field_groups[$parent_id] : FALSE;

        if ($parent_group && !isset($export['features']['field_group'][$parent_id])) {
          $export['features']['field_group'][$parent_id] = $parent_id;
        }
      }
    }
    if(empty($export['dependencies']['field_group'])) {
      $export['dependencies']['field_group'] = 'field_group';
    }
  }
}