Club Drupal

<?php

/**

 * @file

 * Features support to export entities from any Deploy <em>fetch-only</em> plan.

 */

/**

 * Implements [component]_features_export_options().

 *

 * Deploy plans are used as the initial source for an export. Deploy solves

 * complex dependency chains for us, so the entities actually can be used as is.

 */

function uuid_entities_features_export_options() {

  $options = array();

  if (module_exists('deploy')) {

    $plans = deploy_plan_load_all(array('fetch_only' => 1));

    foreach ($plans as $plan) {

      $options[$plan->name] = $plan->title;

    }

  }

  return $options;

}

/**

 * Implements [component]_features_export().

 */

function uuid_entities_features_export($components, &$export, $module_name) {

  foreach ($components as $plan_name) {

    $export['features']['uuid_entities'][$plan_name] = $plan_name;

  }

}

/**

 * Implements [component]_features_export_render().

 *

 * Components corresponds to the name of Deploy plans. However, once exported,

 * entities can be rendered directly from the default hook without Deploy or the

 * initial plan.

 */

function uuid_entities_features_export_render($module_name, $components, $export = NULL) {

  $code = array();

  $code[] = '  $entities = array();';

  $code[] = '';

  foreach ($components as $component) {

    $entities = array();

    if (module_exists('deploy') && $plan = deploy_plan_load($component)) {

      $entities = $plan->getIterator();

    }

    else {

      features_include_defaults(array('uuid_entities'));

      $default_entities = module_invoke($module_name, 'uuid_default_entities');

      foreach ($default_entities[$component] as $entity) {

        $metadata = $entity->__metadata;

        $entity_type = $metadata['type'];

        $entity_info = entity_get_info($entity_type);

        $results = entity_uuid_load($entity_type, array($entity->{$entity_info['entity keys']['uuid']}), NULL, TRUE);

        if (!empty($results)) {

          $entity = reset($results);

          // Re-attach the metadata after loading the clean entity.

          $entity->__metadata = $metadata;

          $entities[] = $entity;

        }

      }

    }

    foreach ($entities as $entity) {

      $entity_type = $entity->__metadata['type'];

      $entity_info = entity_get_info($entity_type);

      // We need to remove entity id and revision keys for better consistency.

      $id_key = $entity_info['entity keys']['id'];

      if (isset($entity->{$id_key})) {

        unset($entity->{$id_key});

      }

      if (!empty($entity_info['entity keys']['revision'])) {

        $vid_key = $entity_info['entity keys']['revision'];

        if (isset($entity->{$vid_key})) {

          unset($entity->{$vid_key});

        }

        if (!empty($entity_info['entity keys']['revision uuid'])) {

          $vuuid_key = $entity_info['entity keys']['revision uuid'];

          unset($entity->{$vuuid_key});

        }

      }

      // We unset some common timestamp properties, since those will change and

      // constantly leave the feature overidden.

      $keys = array(

        'created',

        'updated',

        'changed',

        'revision_timestamp',

        'timestamp',

        'stamp',

        'current',

      );

      foreach ($keys as $key) {

        if (isset($entity->{$key})) {

          unset($entity->{$key});

        }

      }

      // Let other modules alter exported entities.

      drupal_alter('uuid_entities_features_export_entity', $entity, $entity_type);

      // Field handling.

      list(, , $bundle_name) = entity_extract_ids($entity_type, $entity);

      $instances = field_info_instances($entity_type, $bundle_name);

      foreach ($instances as $field_name => $instance) {

        $field = field_info_field($field_name);

        if (!empty($entity->{$field_name})) {

          foreach ($entity->{$field_name} as $langcode => &$items) {

            // Let other modules alter fields on exported entities.

            // We are not using drupal_alter() here, because of it's complexity

            // dealing with over two alterable arguments.

            $hook = 'uuid_entities_features_export_field_alter';

            foreach (module_implements($hook) as $module_name) {

              $function = $module_name . '_' . $hook;

              $function($entity_type, $entity, $field, $instance, $langcode, $items);

            }

            foreach ($items as &$item) {

              // We don't need to export these common field keys.

              foreach (array('safe_value', 'safe_summary') as $key) {

                if (isset($item[$key])) {

                  unset($item[$key]);

                }

              }

              uuid_entities_features_clean($item);

            }

          }

        }

      }

      uuid_entities_features_clean($entity);

      /*

       * Convert entities to array to avoid having them in JSON, returned

       * from standard implementation of $entity->export().

       */

      if (is_object($entity) && method_exists($entity, 'export')) {

        $entity = get_object_vars($entity);

      }

      $code[] = '  $entities[\'' . check_plain($component) . '\'][] = (object) ' . features_var_export($entity, '  ') . ';';

    }

  }

  $code[] = '';

  $code[] = '  return $entities;';

  return array('uuid_default_entities' => implode("\n", $code));

}

/**

 * Implements [component]_features_rebuild().

 */

function uuid_entities_features_rebuild($module_name) {

  uuid_entities_rebuild($module_name, 'rebuild');

}

/**

 * Implements [component]_features_revert().

 */

function uuid_entities_features_revert($module_name) {

  uuid_entities_rebuild($module_name, 'revert');

}

/**

 * Helper function to rebuild entities from a plan.

 */

function uuid_entities_rebuild($module_name = '', $op = 'rebuild') {

  features_include_defaults(array('uuid_entities'));

  $entities = module_invoke($module_name, 'uuid_default_entities');

  if (!empty($entities)) {

    foreach ($entities as $plan_name => $entities) {

      // Let other modules do things before default entities are created.

      module_invoke_all("uuid_entities_pre_$op", $plan_name);

      foreach ($entities as $entity) {

        entity_uuid_save($entity->__metadata['type'], $entity);

      }

      // Let other modules do things after default entities are created.

      module_invoke_all("uuid_entities_post_$op", $plan_name);

    }

  }

}

/**

 * Helper function to sort properties of an object.

 *

 * This will maintain better consistency. Keys might get shifted order or type

 * due to alterations sometimes.

 */

function uuid_entities_features_clean(&$object) {

  $properties = array();

  foreach ($object as $key => $value) {

    $properties[$key] = $value;

    if (is_object($object)) {

      unset($object->{$key});

    }

    elseif (is_array($object)) {

      unset($object[$key]);

    }

  }

  ksort($properties);

  foreach ($properties as $key => $value) {

    // Make properties type consistent.

    if (is_string($value) || is_numeric($value)) {

      if (is_object($object)) {

        $object->{$key} = "$value";

      }

      elseif (is_array($object)) {

        $object[$key] = "$value";

      }

    }

    else {

      if (is_object($object)) {

        $object->{$key} = $value;

      }

      elseif (is_array($object)) {

        $object[$key] = $value;

      }

    }

  }

}