crumbs.entityreference.inc in Crumbs, the Breadcrumbs suite 7

File

plugins/crumbs.entityreference.inc

<?php

/**
 * Implements hook_crumbs_plugins().
 */
function entityreference_crumbs_plugins($api) {
  foreach (field_info_fields() as $key => $info) {
    if ($info['type'] === 'entityreference') {
      foreach ($info['bundles'] as $entity_type => $bundles) {
        $class = '_entityreference_CrumbsMultiPlugin_' . $entity_type;
        if (class_exists($class)) {
          $plugin = new $class($key, $bundles);
          $api
            ->multiPlugin("{$key}.{$entity_type}", $plugin);
        }
      }
    }
  }
  $api
    ->disabledByDefault('*');
}
abstract class _entityreference_CrumbsMultiPlugin implements crumbs_MultiPlugin {
  protected $fieldKey;
  protected $bundles;

  // To be defined by the child class
  protected $entityType;
  function __construct($field_key, $bundles) {
    $this->fieldKey = $field_key;
    $this->bundles = $bundles;
  }
  function describe($api) {
    foreach ($this->bundles as $bundle) {
      $api
        ->addRule($bundle, $bundle);
    }
  }
  protected function _findParentPath($entity) {
    $items = field_get_items($this->entityType, $entity, $this->fieldKey);
    if ($items) {
      $field = field_info_field($this->fieldKey);
      $item = $items[0];
      $target_id = $item['target_id'];
      $target_type = $field['settings']['target_type'];
      $method = '_getPath_' . $target_type;
      if (method_exists($this, $method)) {
        return $this
          ->{$method}($target_id);
      }
    }
  }
  protected function _getPath_node($nid) {
    return 'node/' . $nid;
  }
  protected function _getPath_user($uid) {
    return 'user/' . $uid;
  }

}
class _entityreference_CrumbsMultiPlugin_node extends _entityreference_CrumbsMultiPlugin {
  protected $entityType = 'node';

  /**
   * Match "node/%" router path
   */
  function findParent__node_x($path, $item) {
    $node = $item['map'][1];

    // Load the node if it hasn't been loaded due to a missing wildcard loader.
    $node = is_numeric($node) ? node_load($node) : $node;
    $parent_path = $this
      ->_findParentPath($node);
    if ($parent_path) {
      return array(
        $node->type => $parent_path,
      );
    }
  }

}
class _entityreference_CrumbsMultiPlugin_user extends _entityreference_CrumbsMultiPlugin {
  protected $entityType = 'user';

  /**
   * Match "user/%" router path
   */
  function findParent__user_x($path, $item) {
    $user = $item['map'][1];

    // Load the user if it hasn't been loaded due to a missing wildcard loader.
    $user = is_numeric($user) ? user_load($user) : $user;
    $parent_path = $this
      ->_findParentPath($user);
    if ($parent_path) {
      return array(
        'user' => $parent_path,
      );
    }
  }

}

Functions

Name	Description
entityreference_crumbs_plugins	Implements hook_crumbs_plugins().

Classes

Name	Description
_entityreference_CrumbsMultiPlugin
_entityreference_CrumbsMultiPlugin_node
_entityreference_CrumbsMultiPlugin_user