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root / drupal7 / sites / all / modules / entity / entity.module @ 74f6bef0

       <?php
       /**
        * @file
        * Module file for the entity API.
        */
       module_load_include('inc', 'entity', 'modules/callbacks');
       module_load_include('inc', 'entity', 'includes/entity.property');
       /**
        * Defines status codes used for exportable entities.
        */
       /**
        * A bit flag used to let us know if an entity is in the database.
        */
       /**
        * A bit flag used to let us know if an entity has been customly defined.
        */
       define('ENTITY_CUSTOM', 0x01);
       /**
        * Deprecated, but still here for backward compatibility.
        */
       define('ENTITY_IN_DB', 0x01);
       /**
        * A bit flag used to let us know if an entity is a 'default' in code.
        */
       define('ENTITY_IN_CODE', 0x02);
       /**
        * A bit flag used to mark entities as overridden, e.g. they were originally
        * definded in code and are saved now in the database. Same as
        * (ENTITY_CUSTOM | ENTITY_IN_CODE).
        */
       define('ENTITY_OVERRIDDEN', 0x03);
       /**
        * A bit flag used to mark entities as fixed, thus not changeable for any
        * user.
        */
       define('ENTITY_FIXED', 0x04 | 0x02);
       /**
        * Determines whether for the given entity type a given operation is available.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $op
        *   One of 'create', 'view', 'save', 'delete', 'revision delete', 'access' or
        *   'form'.
+       *
        * @return boolean
        *   Whether the entity type supports the given operation.
        */
       function entity_type_supports($entity_type, $op) {
         $info = entity_get_info($entity_type);
         $keys = array(
           'view' => 'view callback',
           'create' => 'creation callback',
           'delete' => 'deletion callback',
           'revision delete' => 'revision deletion callback',
           'save' => 'save callback',
           'access' => 'access callback',
           'form' => 'form callback'
         );
         if (isset($info[$keys[$op]])) {
           return TRUE;
+        }
         if ($op == 'revision delete') {
           return in_array('EntityAPIControllerInterface', class_implements($info['controller class']));
+        }
         if ($op == 'form') {
           return (bool) entity_ui_controller($entity_type);
+        }
         if ($op != 'access') {
           return in_array('EntityAPIControllerInterface', class_implements($info['controller class']));
+        }
         return FALSE;
+      }
       /**
        * Menu loader function: load an entity from its path.
+       *
        * This can be used to load entities of all types in menu paths:
+       *
        * @code
        * $items['myentity/%entity_object'] = array(
        *   'load arguments' => array('myentity'),
        *   'title' => ...,
        *   'page callback' => ...,
        *   'page arguments' => array(...),
        *   'access arguments' => array(...),
        * );
        * @endcode
+       *
        * @param $entity_id
        *   The ID of the entity to load, passed by the menu URL.
        * @param $entity_type
        *   The type of the entity to load.
        * @return
        *   A fully loaded entity object, or FALSE in case of error.
        */
       function entity_object_load($entity_id, $entity_type) {
         $entities = entity_load($entity_type, array($entity_id));
         return reset($entities);
+      }
       /**
        * Page callback to show links to add an entity of a specific bundle.
+       *
        * Entity modules that provide a further description to their bundles may wish
        * to implement their own version of this to show these.
+       *
        * @param $entity_type
        *   The type of the entity.
        */
       function entity_ui_bundle_add_page($entity_type) {
         // Set the title, as we're a MENU_LOCAL_ACTION and hence just get tab titles.
         module_load_include('inc', 'entity', 'includes/entity.ui');
         drupal_set_title(entity_ui_get_action_title('add', $entity_type));
         // Get entity info for our bundles.
         $info = entity_get_info($entity_type);
         $items = array();
         foreach ($info['bundles'] as $bundle_name => $bundle_info) {
           // Create an empty entity with just the bundle set to check for access.
           $dummy_entity = entity_create($entity_type, array(
             $info['entity keys']['bundle'] => $bundle_name,
           ));
           // If modules use a uid, they can default to the current-user
           // in their create() method on the storage controller.
           if (entity_access('create', $entity_type, $dummy_entity, $account = NULL)) {
             $add_path = $info['admin ui']['path'] . '/add/' . $bundle_name;
             $items[] = l(t('Add @label', array('@label' => $bundle_info['label'])), $add_path);
+          }
+        }
         return theme('item_list', array('items' => $items));
+      }
       /**
        * Page callback to add an entity of a specific bundle.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $bundle_name
        *   The bundle machine name.
        */
       function entity_ui_get_bundle_add_form($entity_type, $bundle_name) {
         $info = entity_get_info($entity_type);
         $bundle_key = $info['entity keys']['bundle'];
         // Make a stub entity of the right bundle to pass to the entity_ui_get_form().
         $values = array(
           $bundle_key => $bundle_name,
         );
         $entity = entity_create($entity_type, $values);
         return entity_ui_get_form($entity_type, $entity, 'add');
+      }
       /**
        * Page callback for viewing an entity.
+       *
        * @param Entity $entity
        *   The entity to be rendered.
+       *
        * @return array
        *   A renderable array of the entity in full view mode.
        */
       function entity_ui_entity_page_view($entity) {
         module_load_include('inc', 'entity', 'includes/entity.ui');
         return $entity->view('full', NULL, TRUE);
+      }
       /**
        * Gets the page title for the passed operation.
        */
       function entity_ui_get_page_title($op, $entity_type, $entity = NULL) {
         module_load_include('inc', 'entity', 'includes/entity.ui');
         $label = entity_label($entity_type, $entity);
         switch ($op) {
           case 'view':
             return $label;
           case 'edit':
             return t('Edit @label', array('@label' => $label));
           case 'clone':
             return t('Clone @label', array('@label' => $label));
           case 'revert':
             return t('Revert @label', array('@label' => $label));
           case 'delete':
             return t('Delete @label', array('@label' => $label));
           case 'export':
             return t('Export @label', array('@label' => $label));
+        }
         if (isset($entity)) {
           list(, , $bundle) = entity_extract_ids($entity_type, $entity);
+        }
         return entity_ui_get_action_title($op, $entity_type, $bundle);
+      }
       /**
        * A wrapper around entity_load() to load a single entity by name or numeric id.
+       *
        * @todo: Re-name entity_load() to entity_load_multiple() in d8 core and this
        * to entity_load().
+       *
        * @param $entity_type
        *   The entity type to load, e.g. node or user.
        * @param $id
        *   The entity id, either the numeric id or the entity name. In case the entity
        *   type has specified a name key, both the numeric id and the name may be
        *   passed.
+       *
        * @return
        *   The entity object, or FALSE.
+       *
        * @see entity_load()
        */
       function entity_load_single($entity_type, $id) {
         $entities = entity_load($entity_type, array($id));
         return reset($entities);
+      }
       /**
        * A wrapper around entity_load() to return entities keyed by name key if existing.
+       *
        * @param $entity_type
        *   The entity type to load, e.g. node or user.
        * @param $names
        *   An array of entity names or ids, or FALSE to load all entities.
        * @param $conditions
        *   (deprecated) An associative array of conditions on the base table, where
        *   the keys are the database fields and the values are the values those
        *   fields must have. Instead, it is preferable to use EntityFieldQuery to
        *   retrieve a list of entity IDs loadable by this function.
+       *
        * @return
        *   An array of entity objects indexed by their names (or ids if the entity
        *   type has no name key).
+       *
        * @see entity_load()
        */
       function entity_load_multiple_by_name($entity_type, $names = FALSE, $conditions = array()) {
         $entities = entity_load($entity_type, $names, $conditions);
         $info = entity_get_info($entity_type);
         if (!isset($info['entity keys']['name'])) {
           return $entities;
+        }
         return entity_key_array_by_property($entities, $info['entity keys']['name']);
+      }
       /**
        * Permanently save an entity.
+       *
        * In case of failures, an exception is thrown.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   The entity to save.
+       *
        * @return
        *   For entity types provided by the CRUD API, SAVED_NEW or SAVED_UPDATED is
        *   returned depending on the operation performed. If there is no information
        *   how to save the entity, FALSE is returned.
+       *
        * @see entity_type_supports()
        */
       function entity_save($entity_type, $entity) {
         $info = entity_get_info($entity_type);
         if (method_exists($entity, 'save')) {
           return $entity->save();
+        }
         elseif (isset($info['save callback'])) {
           $info['save callback']($entity);
+        }
         elseif (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->save($entity);
+        }
         else {
           return FALSE;
+        }
+      }
       /**
        * Permanently delete the given entity.
+       *
        * In case of failures, an exception is thrown.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $id
        *   The uniform identifier of the entity to delete.
+       *
        * @return
        *   FALSE, if there were no information how to delete the entity.
+       *
        * @see entity_type_supports()
        */
       function entity_delete($entity_type, $id) {
         return entity_delete_multiple($entity_type, array($id));
+      }
       /**
        * Permanently delete multiple entities.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $ids
        *   An array of entity ids of the entities to delete. In case the entity makes
        *   use of a name key, both the names or numeric ids may be passed.
        * @return
        *   FALSE if the given entity type isn't compatible to the CRUD API.
        */
       function entity_delete_multiple($entity_type, $ids) {
         $info = entity_get_info($entity_type);
         if (isset($info['deletion callback'])) {
           foreach ($ids as $id) {
             $info['deletion callback']($id);
+          }
+        }
         elseif (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           entity_get_controller($entity_type)->delete($ids);
+        }
         else {
           return FALSE;
+        }
+      }
       /**
        * Loads an entity revision.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $revision_id
        *   The id of the revision to load.
+       *
        * @return
        *   The entity object, or FALSE if there is no entity with the given revision
        *   id.
        */
       function entity_revision_load($entity_type, $revision_id) {
         $info = entity_get_info($entity_type);
         if (!empty($info['entity keys']['revision'])) {
           $entity_revisions = entity_load($entity_type, FALSE, array($info['entity keys']['revision'] => $revision_id));
           return reset($entity_revisions);
+        }
         return FALSE;
+      }
       /**
        * Deletes an entity revision.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $revision_id
        *   The revision ID to delete.
+       *
        * @return
        *   TRUE if the entity revision could be deleted, FALSE otherwise.
        */
       function entity_revision_delete($entity_type, $revision_id) {
         $info = entity_get_info($entity_type);
         if (isset($info['revision deletion callback'])) {
           return $info['revision deletion callback']($revision_id, $entity_type);
+        }
         elseif (in_array('EntityAPIControllerRevisionableInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->deleteRevision($revision_id);
+        }
         return FALSE;
+      }
       /**
        * Checks whether the given entity is the default revision.
+       *
        * Note that newly created entities will always be created in default revision,
        * thus TRUE is returned for not yet saved entities.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   The entity object to check.
+       *
        * @return boolean
        *   A boolean indicating whether the entity is in default revision is returned.
        *   If the entity is not revisionable or is new, TRUE is returned.
+       *
        * @see entity_revision_set_default()
        */
       function entity_revision_is_default($entity_type, $entity) {
         $info = entity_get_info($entity_type);
         if (empty($info['entity keys']['revision'])) {
           return TRUE;
+        }
         // Newly created entities will always be created in default revision.
         if (!empty($entity->is_new) || empty($entity->{$info['entity keys']['id']})) {
           return TRUE;
+        }
         if (in_array('EntityAPIControllerRevisionableInterface', class_implements($info['controller class']))) {
           $key = !empty($info['entity keys']['default revision']) ? $info['entity keys']['default revision'] : 'default_revision';
           return !empty($entity->$key);
+        }
         else {
           // Else, just load the default entity and compare the ID. Usually, the
           // entity should be already statically cached anyway.
           $default = entity_load_single($entity_type, $entity->{$info['entity keys']['id']});
           return $default->{$info['entity keys']['revision']} == $entity->{$info['entity keys']['revision']};
+        }
+      }
       /**
        * Sets a given entity revision as default revision.
+       *
        * Note that the default revision flag will only be supported by entity types
        * based upon the EntityAPIController, i.e. implementing the
        * EntityAPIControllerRevisionableInterface.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   The entity revision to update.
+       *
        * @see entity_revision_is_default()
        */
       function entity_revision_set_default($entity_type, $entity) {
         $info = entity_get_info($entity_type);
         if (!empty($info['entity keys']['revision'])) {
           $key = !empty($info['entity keys']['default revision']) ? $info['entity keys']['default revision'] : 'default_revision';
           $entity->$key = TRUE;
+        }
+      }
       /**
        * Create a new entity object.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $values
        *   An array of values to set, keyed by property name. If the entity type has
        *   bundles the bundle key has to be specified.
        * @return
        *   A new instance of the entity type or FALSE if there is no information for
        *   the given entity type.
+       *
        * @see entity_type_supports()
        */
       function entity_create($entity_type, array $values) {
         $info = entity_get_info($entity_type);
         if (isset($info['creation callback'])) {
           return $info['creation callback']($values, $entity_type);
+        }
         elseif (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->create($values);
+        }
         return FALSE;
+      }
       /**
        * Exports an entity.
+       *
        * Note: Currently, this only works for entity types provided with the entity
        * CRUD API.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   The entity to export.
        * @param $prefix
        *   An optional prefix for each line.
        * @return
        *   The exported entity as serialized string. The format is determined by the
        *   respective entity controller, e.g. it is JSON for the EntityAPIController.
        *   The output is suitable for entity_import().
        */
       function entity_export($entity_type, $entity, $prefix = '') {
         if (method_exists($entity, 'export')) {
           return $entity->export($prefix);
+        }
         $info = entity_get_info($entity_type);
         if (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->export($entity, $prefix);
+        }
+      }
       /**
        * Imports an entity.
+       *
        * Note: Currently, this only works for entity types provided with the entity
        * CRUD API.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param string $export
        *   The string containing the serialized entity as produced by
        *   entity_export().
        * @return
        *   The imported entity object not yet saved.
        */
       function entity_import($entity_type, $export) {
         $info = entity_get_info($entity_type);
         if (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->import($export);
+        }
+      }
       /**
        * Checks whether an entity type is fieldable.
+       *
        * @param $entity_type
        *   The type of the entity.
+       *
        * @return
        *   TRUE if the entity type is fieldable, FALSE otherwise.
        */
       function entity_type_is_fieldable($entity_type) {
         $info = entity_get_info($entity_type);
         return !empty($info['fieldable']);
+      }
       /**
        * Builds a structured array representing the entity's content.
+       *
        * The content built for the entity will vary depending on the $view_mode
        * parameter.
+       *
        * Note: Currently, this only works for entity types provided with the entity
        * CRUD API.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   An entity object.
        * @param $view_mode
        *   A view mode as used by this entity type, e.g. 'full', 'teaser'...
        * @param $langcode
        *   (optional) A language code to use for rendering. Defaults to the global
        *   content language of the current request.
        * @return
        *   The renderable array.
        */
       function entity_build_content($entity_type, $entity, $view_mode = 'full', $langcode = NULL) {
         $info = entity_get_info($entity_type);
         if (method_exists($entity, 'buildContent')) {
           return $entity->buildContent($view_mode, $langcode);
+        }
         elseif (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->buildContent($entity, $view_mode, $langcode);
+        }
+      }
       /**
        * Returns the entity identifier, i.e. the entities name or numeric id.
+       *
        * Unlike entity_extract_ids() this function returns the name of the entity
        * instead of the numeric id, in case the entity type has specified a name key.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   An entity object.
+       *
        * @see entity_extract_ids()
        */
       function entity_id($entity_type, $entity) {
         if (method_exists($entity, 'identifier')) {
           return $entity->identifier();
+        }
         $info = entity_get_info($entity_type);
         $key = isset($info['entity keys']['name']) ? $info['entity keys']['name'] : $info['entity keys']['id'];
         return isset($entity->$key) ? $entity->$key : NULL;
+      }
       /**
        * Generate an array for rendering the given entities.
+       *
        * Entities being viewed, are generally expected to be fully-loaded entity
        * objects, thus have their name or id key set. However, it is possible to
        * view a single entity without any id, e.g. for generating a preview during
        * creation.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entities
        *   An array of entities to render.
        * @param $view_mode
        *   A view mode as used by this entity type, e.g. 'full', 'teaser'...
        * @param $langcode
        *   (optional) A language code to use for rendering. Defaults to the global
        *   content language of the current request.
        * @param $page
        *   (optional) If set will control if the entity is rendered: if TRUE
        *   the entity will be rendered without its title, so that it can be embeded
        *   in another context. If FALSE the entity will be displayed with its title
        *   in a mode suitable for lists.
        *   If unset, the page mode will be enabled if the current path is the URI
        *   of the entity, as returned by entity_uri().
        *   This parameter is only supported for entities which controller is a
        *   EntityAPIControllerInterface.
        * @return
        *   The renderable array, keyed by the entity type and by entity identifiers,
        *   for which the entity name is used if existing - see entity_id(). If there
        *   is no information on how to view an entity, FALSE is returned.
        */
       function entity_view($entity_type, $entities, $view_mode = 'full', $langcode = NULL, $page = NULL) {
         $info = entity_get_info($entity_type);
         if (isset($info['view callback'])) {
           $entities = entity_key_array_by_property($entities, $info['entity keys']['id']);
           return $info['view callback']($entities, $view_mode, $langcode, $entity_type);
+        }
         elseif (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_get_controller($entity_type)->view($entities, $view_mode, $langcode, $page);
+        }
         return FALSE;
+      }
       /**
        * Determines whether the given user can perform actions on an entity.
+       *
        * For create operations, the pattern is to create an entity and then
        * check if the user has create access.
+       *
        * @code
        * $node = entity_create('node', array('type' => 'page'));
        * $access = entity_access('create', 'node', $node, $account);
        * @endcode
+       *
        * @param $op
        *   The operation being performed. One of 'view', 'update', 'create' or
        *   'delete'.
        * @param $entity_type
        *   The entity type of the entity to check for.
        * @param $entity
        *   Optionally an entity to check access for. If no entity is given, it will be
        *   determined whether access is allowed for all entities of the given type.
        * @param $account
        *   The user to check for. Leave it to NULL to check for the global user.
+       *
        * @return boolean
        *   Whether access is allowed or not. If the entity type does not specify any
        *   access information, NULL is returned.
+       *
        * @see entity_type_supports()
        */
       function entity_access($op, $entity_type, $entity = NULL, $account = NULL) {
         if (($info = entity_get_info()) && isset($info[$entity_type]['access callback'])) {
           return $info[$entity_type]['access callback']($op, $entity, $account, $entity_type);
+        }
+      }
       /**
        * Gets the edit form for any entity.
+       *
        * This helper makes use of drupal_get_form() and the regular form builder
        * function of the entity type to retrieve and process the form as usual.
+       *
        * In order to use this helper to show an entity add form, the new entity object
        * can be created via entity_create() or entity_property_values_create_entity().
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   The entity to show the edit form for.
        * @return
        *   The renderable array of the form. If there is no entity form or missing
        *   metadata, FALSE is returned.
+       *
        * @see entity_type_supports()
        */
       function entity_form($entity_type, $entity) {
         $info = entity_get_info($entity_type);
         if (isset($info['form callback'])) {
           return $info['form callback']($entity, $entity_type);
+        }
         // If there is an UI controller, the providing module has to implement the
         // entity form using entity_ui_get_form().
         elseif (entity_ui_controller($entity_type)) {
           return entity_metadata_form_entity_ui($entity, $entity_type);
+        }
         return FALSE;
+      }
       /**
        * Converts an array of entities to be keyed by the values of a given property.
+       *
        * @param array $entities
        *   The array of entities to convert.
        * @param $property
        *   The name of entity property, by which the array should be keyed. To get
        *   reasonable results, the property has to have unique values.
+       *
        * @return array
        *   The same entities in the same order, but keyed by their $property values.
        */
       function entity_key_array_by_property(array $entities, $property) {
         $ret = array();
         foreach ($entities as $entity) {
           $key = isset($entity->$property) ? $entity->$property : NULL;
           $ret[$key] = $entity;
+        }
         return $ret;
+      }
       /**
        * Get the entity info for the entity types provided via the entity CRUD API.
+       *
        * @return
        *  An array in the same format as entity_get_info(), containing the entities
        *  whose controller class implements the EntityAPIControllerInterface.
        */
       function entity_crud_get_info() {
         $types = array();
         foreach (entity_get_info() as $type => $info) {
           if (isset($info['controller class']) && in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
             $types[$type] = $info;
+          }
+        }
         return $types;
+      }
       /**
        * Checks if a given entity has a certain exportable status.
+       *
        * @param $entity_type
        *   The type of the entity.
        * @param $entity
        *   The entity to check the status on.
        * @param $status
        *   The constant status like ENTITY_CUSTOM, ENTITY_IN_CODE, ENTITY_OVERRIDDEN
        *   or ENTITY_FIXED.
+       *
        * @return
        *   TRUE if the entity has the status, FALSE otherwise.
        */
       function entity_has_status($entity_type, $entity, $status) {
         $info = entity_get_info($entity_type);
         $status_key = empty($info['entity keys']['status']) ? 'status' : $info['entity keys']['status'];
         return isset($entity->{$status_key}) && ($entity->{$status_key} & $status) == $status;
+      }
       /**
        * Export a variable. Copied from ctools.
+       *
        * This is a replacement for var_export(), allowing us to more nicely
        * format exports. It will recurse down into arrays and will try to
        * properly export bools when it can.
        */
       function entity_var_export($var, $prefix = '') {
         if (is_array($var)) {
           if (empty($var)) {
             $output = 'array()';
+          }
           else {
             $output = "array(\n";
             foreach ($var as $key => $value) {
               $output .= "  '$key' => " . entity_var_export($value, '  ') . ",\n";
+            }
             $output .= ')';
+          }
+        }
         elseif (is_bool($var)) {
           $output = $var ? 'TRUE' : 'FALSE';
+        }
         else {
           $output = var_export($var, TRUE);
+        }
         if ($prefix) {
           $output = str_replace("\n", "\n$prefix", $output);
+        }
         return $output;
+      }
       /**
        * Export a variable in pretty formatted JSON.
        */
       function entity_var_json_export($var, $prefix = '') {
         if (is_array($var) && $var) {
           // Defines whether we use a JSON array or object.
           $use_array = ($var == array_values($var));
           $output = $use_array ? "[" : "{";
           foreach ($var as $key => $value) {
             if ($use_array) {
               $values[] = entity_var_json_export($value, '  ');
+            }
             else {
               $values[] = entity_var_json_export((string) $key, '  ') . ' : ' . entity_var_json_export($value, '  ');
+            }
+          }
           // Use several lines for long content. However for objects with a single
           // entry keep the key in the first line.
           if (strlen($content = implode(', ', $values)) > 70 && ($use_array || count($values) > 1)) {
             $output .= "\n  " . implode(",\n  ", $values) . "\n";
+          }
           elseif (strpos($content, "\n") !== FALSE) {
             $output .= " " . $content . "\n";
+          }
           else {
             $output .= " " . $content . ' ';
+          }
           $output .= $use_array ? ']' : '}';
+        }
         else {
           $output = drupal_json_encode($var);
+        }
         if ($prefix) {
           $output = str_replace("\n", "\n$prefix", $output);
+        }
         return $output;
+      }
       /**
        * Rebuild the default entities provided in code.
+       *
        * Exportable entities provided in code get saved to the database once a module
        * providing defaults in code is activated. This allows module and entity_load()
        * to easily deal with exportable entities just by relying on the database.
+       *
        * The defaults get rebuilt if the cache is cleared or new modules providing
        * defaults are enabled, such that the defaults in the database are up to date.
        * A default entity gets updated with the latest defaults in code during rebuild
        * as long as the default has not been overridden. Once a module providing
        * defaults is disabled, its default entities get removed from the database
        * unless they have been overridden. In that case the overridden entity is left
        * in the database, but its status gets updated to 'custom'.
+       *
        * @param $entity_types
        *   (optional) If specified, only the defaults of the given entity types are
        *   rebuilt.
        */
       function entity_defaults_rebuild($entity_types = NULL) {
         if (!isset($entity_types)) {
           $entity_types = array();
           foreach (entity_crud_get_info() as $type => $info) {
             if (!empty($info['exportable'])) {
               $entity_types[] = $type;
+            }
           };
+        }
         foreach ($entity_types as $type) {
           _entity_defaults_rebuild($type);
+        }
+      }
       /**
        * Actually rebuild the defaults of a given entity type.
        */
       function _entity_defaults_rebuild($entity_type) {
         if (lock_acquire('entity_rebuild_' . $entity_type)) {
           $info = entity_get_info($entity_type);
           $hook = isset($info['export']['default hook']) ? $info['export']['default hook'] : 'default_' . $entity_type;
           $keys = $info['entity keys'] + array('module' => 'module', 'status' => 'status', 'name' => $info['entity keys']['id']);
           // Check for the existence of the module and status columns.
           if (!in_array($keys['status'], $info['schema_fields_sql']['base table']) || !in_array($keys['module'], $info['schema_fields_sql']['base table'])) {
             trigger_error("Missing database columns for the exportable entity $entity_type as defined by entity_exportable_schema_fields(). Update the according module and run update.php!", E_USER_WARNING);
             return;
+          }
           // Invoke the hook and collect default entities.
           $entities = array();
           foreach (module_implements($hook) as $module) {
             foreach ((array) module_invoke($module, $hook) as $name => $entity) {
               $entity->{$keys['name']} = $name;
               $entity->{$keys['module']} = $module;
               $entities[$name] = $entity;
+            }
+          }
           drupal_alter($hook, $entities);
           // Check for defaults that disappeared.
           $existing_defaults = entity_load_multiple_by_name($entity_type, FALSE, array($keys['status'] => array(ENTITY_OVERRIDDEN, ENTITY_IN_CODE, ENTITY_FIXED)));
           foreach ($existing_defaults as $name => $entity) {
             if (empty($entities[$name])) {
               $entity->is_rebuild = TRUE;
               if (entity_has_status($entity_type, $entity, ENTITY_OVERRIDDEN)) {
                 $entity->{$keys['status']} = ENTITY_CUSTOM;
                 entity_save($entity_type, $entity);
+              }
               else {
                 entity_delete($entity_type, $name);
+              }
               unset($entity->is_rebuild);
+            }
+          }
           // Load all existing entities.
           $existing_entities = entity_load_multiple_by_name($entity_type, array_keys($entities));
           foreach ($existing_entities as $name => $entity) {
             if (entity_has_status($entity_type, $entity, ENTITY_CUSTOM)) {
               // If the entity already exists but is not yet marked as overridden, we
               // have to update the status.
               if (!entity_has_status($entity_type, $entity, ENTITY_OVERRIDDEN)) {
                 $entity->{$keys['status']} |= ENTITY_OVERRIDDEN;
                 $entity->{$keys['module']} = $entities[$name]->{$keys['module']};
                 $entity->is_rebuild = TRUE;
                 entity_save($entity_type, $entity);
                 unset($entity->is_rebuild);
+              }
               // The entity is overridden, so we do not need to save the default.
               unset($entities[$name]);
+            }
+          }
           // Save defaults.
           $originals = array();
           foreach ($entities as $name => $entity) {
             if (!empty($existing_entities[$name])) {
               // Make sure we are updating the existing default.
               $entity->{$keys['id']} = $existing_entities[$name]->{$keys['id']};
               unset($entity->is_new);
+            }
             // Pre-populate $entity->original as we already have it. So we avoid
             // loading it again.
             $entity->original = !empty($existing_entities[$name]) ? $existing_entities[$name] : FALSE;
             // Keep original entities for hook_{entity_type}_defaults_rebuild()
             // implementations.
             $originals[$name] = $entity->original;
             if (!isset($entity->{$keys['status']})) {
               $entity->{$keys['status']} = ENTITY_IN_CODE;
+            }
             else {
               $entity->{$keys['status']} |= ENTITY_IN_CODE;
+            }
             $entity->is_rebuild = TRUE;
             entity_save($entity_type, $entity);
             unset($entity->is_rebuild);
+          }
           // Invoke an entity type-specific hook so modules may apply changes, e.g.
           // efficiently rebuild caches.
           module_invoke_all($entity_type . '_defaults_rebuild', $entities, $originals);
           lock_release('entity_rebuild_' . $entity_type);
+        }
+      }
       /**
        * Implements hook_modules_installed().
        */
       function entity_modules_installed($modules) {
         module_load_install('entity');
         entity_entitycache_installed_modules($modules);
+      }
       /**
        * Implements hook_modules_uninstalled().
        */
       function entity_modules_uninstalled($modules) {
         module_load_install('entity');
         entity_entitycache_uninstalled_modules($modules);
+      }
       /**
        * Implements hook_modules_enabled().
        */
       function entity_modules_enabled($modules) {
         foreach (_entity_modules_get_default_types($modules) as $type) {
           _entity_defaults_rebuild($type);
+        }
+      }
       /**
        * Implements hook_modules_disabled().
        */
       function entity_modules_disabled($modules) {
         foreach (_entity_modules_get_default_types($modules) as $entity_type) {
           $info = entity_get_info($entity_type);
           // Do nothing if the module providing the entity type has been disabled too.
           if (isset($info['module']) && in_array($info['module'], $modules)) {
             return;
+          }
           $keys = $info['entity keys'] + array('module' => 'module', 'status' => 'status', 'name' => $info['entity keys']['id']);
           // Remove entities provided in code by one of the disabled modules.
           $query = new EntityFieldQuery();
           $query->entityCondition('entity_type', $entity_type, '=')
                 ->propertyCondition($keys['module'], $modules, 'IN')
                 ->propertyCondition($keys['status'], array(ENTITY_IN_CODE, ENTITY_FIXED), 'IN');
           $result = $query->execute();
           if (isset($result[$entity_type])) {
             $entities = entity_load($entity_type, array_keys($result[$entity_type]));
             entity_delete_multiple($entity_type, array_keys($entities));
+          }
           // Update overridden entities to be now custom.
           $query = new EntityFieldQuery();
           $query->entityCondition('entity_type', $entity_type, '=')
                 ->propertyCondition($keys['module'], $modules, 'IN')
                 ->propertyCondition($keys['status'], ENTITY_OVERRIDDEN, '=');
           $result = $query->execute();
           if (isset($result[$entity_type])) {
             foreach (entity_load($entity_type, array_keys($result[$entity_type])) as $name => $entity) {
               $entity->{$keys['status']} = ENTITY_CUSTOM;
               $entity->{$keys['module']} = NULL;
               entity_save($entity_type, $entity);
+            }
+          }
           // Rebuild the remaining defaults so any alterations of the disabled modules
           // are gone.
           _entity_defaults_rebuild($entity_type);
+        }
+      }
       /**
        * Gets all entity types for which defaults are provided by the $modules.
        */
       function _entity_modules_get_default_types($modules) {
         $types = array();
         foreach (entity_crud_get_info() as $entity_type => $info) {
           if (!empty($info['exportable'])) {
             $hook = isset($info['export']['default hook']) ? $info['export']['default hook'] : 'default_' . $entity_type;
             foreach ($modules as $module) {
               if (module_hook($module, $hook) || module_hook($module, $hook . '_alter')) {
                 $types[] = $entity_type;
+              }
+            }
+          }
+        }
         return $types;
+      }
       /**
        * Defines schema fields required for exportable entities.
+       *
        * Warning: Do not call this function in your module's hook_schema()
        * implementation or update functions. It is not safe to call functions of
        * dependencies at this point. Instead of calling the function, just copy over
        * the content.
        * For more details see the issue http://drupal.org/node/1122812.
        */
       function entity_exportable_schema_fields($module_col = 'module', $status_col = 'status') {
         return array(
           $status_col => array(
             'type' => 'int',
             'not null' => TRUE,
             // Set the default to ENTITY_CUSTOM without using the constant as it is
             // not safe to use it at this point.
             'default' => 0x01,
             'size' => 'tiny',
             'description' => 'The exportable status of the entity.',
           ),
           $module_col => array(
             'description' => 'The name of the providing module if the entity has been defined in code.',
             'type' => 'varchar',
             'length' => 255,
             'not null' => FALSE,
           ),
         );
+      }
       /**
        * Implements hook_flush_caches().
        */
       function entity_flush_caches() {
         entity_property_info_cache_clear();
         // Re-build defaults in code, however skip it on the admin modules page. In
         // case of enabling or disabling modules we already rebuild defaults in
         // entity_modules_enabled() and entity_modules_disabled(), so we do not need
         // to do it again.
         if (current_path() != 'admin/modules/list/confirm') {
           entity_defaults_rebuild();
+        }
         // Care about entitycache tables.
         if (module_exists('entitycache')) {
           $tables = array();
           foreach (entity_crud_get_info() as $entity_type => $entity_info) {
             if (isset($entity_info['module']) && !empty($entity_info['entity cache'])) {
               $tables[] = 'cache_entity_' . $entity_type;
+            }
+          }
           return $tables;
+        }
+      }
       /**
        * Implements hook_theme().
        */
       function entity_theme() {
         // Build a pattern in the form of "(type1|type2|...)(\.|__)" such that all
         // templates starting with an entity type or named like the entity type
         // are found.
         // This has to match the template suggestions provided in
         // template_preprocess_entity().
         $types = array_keys(entity_crud_get_info());
         $pattern = '(' . implode('|', $types) . ')(\.|__)';
         return array(
           'entity_status' => array(
             'variables' => array('status' => NULL, 'html' => TRUE),
             'file' => 'theme/entity.theme.inc',
           ),
           'entity' => array(
             'render element' => 'elements',
             'template' => 'entity',
             'pattern' => $pattern,
             'path' => drupal_get_path('module', 'entity') . '/theme',
             'file' => 'entity.theme.inc',
           ),
           'entity_property' => array(
             'render element' => 'elements',
             'file' => 'theme/entity.theme.inc',
           ),
           'entity_ui_overview_item' => array(
             'variables' => array('label' => NULL, 'entity_type' => NULL, 'url' => FALSE, 'name' => FALSE),
             'file' => 'includes/entity.ui.inc'
           ),
         );
+      }
       /**
        * Label callback that refers to the entity classes label method.
        */
       function entity_class_label($entity) {
         return $entity->label();
+      }
       /**
        * URI callback that refers to the entity classes uri method.
        */
       function entity_class_uri($entity) {
         return $entity->uri();
+      }
       /**
        * Implements hook_file_download_access() for entity types provided by the CRUD API.
        */
       function entity_file_download_access($field, $entity_type, $entity) {
         $info = entity_get_info($entity_type);
         if (in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
           return entity_access('view', $entity_type, $entity);
+        }
+      }
       /**
        * Determines the UI controller class for a given entity type.
+       *
        * @return EntityDefaultUIController
        *   If a type is given, the controller for the given entity type. Else an array
        *   of all enabled UI controllers keyed by entity type is returned.
        */
       function entity_ui_controller($type = NULL) {
         $static = &drupal_static(__FUNCTION__);
         if (!isset($type)) {
           // Invoke the function for each type to ensure we have fully populated the
           // static variable.
           foreach (entity_get_info() as $entity_type => $info) {
             entity_ui_controller($entity_type);
+          }
           return array_filter($static);
+        }
         if (!isset($static[$type])) {
           $info = entity_get_info($type);
           $class = isset($info['admin ui']['controller class']) ? $info['admin ui']['controller class'] : 'EntityDefaultUIController';
           $static[$type] = (isset($info['admin ui']['path']) && $class) ? new $class($type, $info) : FALSE;
+        }
         return $static[$type];
+      }
       /**
        * Implements hook_menu().
+       *
        * @see EntityDefaultUIController::hook_menu()
        */
       function entity_menu() {
         $items = array();
         foreach (entity_ui_controller() as $controller) {
           $items += $controller->hook_menu();
+        }
         return $items;
+      }
       /**
        * Implements hook_forms().
+       *
        * @see EntityDefaultUIController::hook_forms()
        * @see entity_ui_get_form()
        */
       function entity_forms($form_id, $args) {
         // For efficiency only invoke an entity types controller, if a form of it is
         // requested. Thus if the first (overview and operation form) or the third
         // argument (edit form) is an entity type name, add in the types forms.
         if (isset($args[0]) && is_string($args[0]) && entity_get_info($args[0])) {
           $type = $args[0];
+        }
         elseif (isset($args[2]) && is_string($args[2]) && entity_get_info($args[2])) {
           $type = $args[2];
+        }
         if (isset($type) && $controller = entity_ui_controller($type)) {
           return $controller->hook_forms();
+        }
+      }
       /**
        * A wrapper around drupal_get_form() that helps building entity forms.
+       *
        * This function may be used by entities to build their entity form. It has to
        * be used instead of calling drupal_get_form().
        * Entity forms built with this helper receive useful defaults suiting for
        * editing a single entity, whereas the special cases of adding and cloning
        * of entities are supported too.
+       *
        * While this function is intended to be used to get entity forms for entities
        * using the entity ui controller, it may be used for entity types not using
        * the ui controller too.
+       *
        * @param $entity_type
        *   The entity type for which to get the form.
        * @param $entity
        *   The entity for which to return the form.
        *   If $op is 'add' the entity has to be either initialized before calling this
        *   function, or NULL may be passed. If NULL is passed, an entity will be
        *   initialized with empty values using entity_create(). Thus entities, for
        *   which this is problematic have to care to pass in an initialized entity.
        * @param $op
        *   (optional) One of 'edit', 'add' or 'clone'. Defaults to edit.
        * @param $form_state
        *   (optional) A pre-populated form state, e.g. to add in form include files.
        *   See entity_metadata_form_entity_ui().
+       *
        * @return
        *   The fully built and processed form, ready to be rendered.
+       *
        * @see EntityDefaultUIController::hook_forms()
        * @see entity_ui_form_submit_build_entity()
        */
       function entity_ui_get_form($entity_type, $entity, $op = 'edit', $form_state = array()) {
         if (isset($entity)) {
           list(, , $bundle) = entity_extract_ids($entity_type, $entity);
+        }
         $form_id = (!isset($bundle) || $bundle == $entity_type) ? $entity_type . '_form' : $entity_type . '_edit_' . $bundle . '_form';
         if (!isset($entity) && $op == 'add') {
           $entity = entity_create($entity_type, array());
+        }
         // Do not use drupal_get_form(), but invoke drupal_build_form() ourself so
         // we can prepulate the form state.
         $form_state['wrapper_callback'] = 'entity_ui_main_form_defaults';
         $form_state['entity_type'] = $entity_type;
         form_load_include($form_state, 'inc', 'entity', 'includes/entity.ui');
         // Handle cloning. We cannot do that in the wrapper callback as it is too late
         // for changing arguments.
         if ($op == 'clone') {
           $entity = entity_ui_clone_entity($entity_type, $entity);
+        }
         // We don't pass the entity type as first parameter, as the implementing
         // module knows the type anyway. However, in order to allow for efficient
         // hook_forms() implementiations we append the entity type as last argument,
         // which the module implementing the form constructor may safely ignore.
         // @see entity_forms()
         $form_state['build_info']['args'] = array($entity, $op, $entity_type);
         return drupal_build_form($form_id, $form_state);
+      }
       /**
        * Helper for using i18n_string().
+       *
        * @param $name
        *   Textgroup and context glued with ':'.
        * @param $default
        *   String in default language. Default language may or may not be English.
        * @param $langcode
        *   (optional) The code of a certain language to translate the string into.
        *   Defaults to the i18n_string() default, i.e. the current language.
+       *
        * @see i18n_string()
        */
       function entity_i18n_string($name, $default, $langcode = NULL) {
         return function_exists('i18n_string') ? i18n_string($name, $default, array('langcode' => $langcode)) : $default;
+      }
       /**
        * Implements hook_views_api().
        */
       function entity_views_api() {
         return array(
           'api' => '3.0-alpha1',
           'path' => drupal_get_path('module', 'entity') . '/views',
         );
+      }
       /**
        * Implements hook_field_extra_fields().
        */
       function entity_field_extra_fields() {
         // Invoke specified controllers for entity types provided by the CRUD API.
         $items = array();
         foreach (entity_crud_get_info() as $type => $info) {
           if (!empty($info['extra fields controller class'])) {
             $items = array_merge_recursive($items, entity_get_extra_fields_controller($type)->fieldExtraFields());
+          }
+        }
         return $items;
+      }
       /**
        * Gets the extra field controller class for a given entity type.
+       *
        * @return EntityExtraFieldsControllerInterface|false
        *   The controller for the given entity type or FALSE if none is specified.
        */
       function entity_get_extra_fields_controller($type = NULL) {
         $static = &drupal_static(__FUNCTION__);
         if (!isset($static[$type])) {
           $static[$type] = FALSE;
           $info = entity_get_info($type);
           if (!empty($info['extra fields controller class'])) {
             $static[$type] = new $info['extra fields controller class']($type);
+          }
+        }
         return $static[$type];
+      }
       /**
        * Returns a property wrapper for the given data.
+       *
        * If an entity is wrapped, the wrapper can be used to retrieve further wrappers
        * for the entitity properties. For that the wrapper support chaining, e.g. you
        * can use a node wrapper to get the node authors mail address:
+       *
        * @code
        *   echo $wrappedNode->author->mail->value();
        * @endcode
+       *
        * @param $type
        *   The type of the passed data.
        * @param $data
        *   The data to wrap. It may be set to NULL, so the wrapper can be used
        *   without any data for getting information about properties.
        * @param $info
        *   (optional) Specify additional information for the passed data:
        *    - langcode: (optional) If the data is language specific, its langauge
        *      code. Defaults to NULL, what means language neutral.
        *    - bundle: (optional) If an entity is wrapped but not passed, use this key
        *      to specify the bundle to return a wrapper for.
        *    - property info: (optional) May be used to use a wrapper with an arbitrary
        *      data structure (type 'struct'). Use this key for specifying info about
        *      properties in the same structure as used by hook_entity_property_info().
        *    - property info alter: (optional) A callback for altering the property
        *      info before it is utilized by the wrapper.
        *    - property defaults: (optional) An array of defaults for the info of
        *      each property of the wrapped data item.
        * @return EntityMetadataWrapper
        *   Dependend on the passed data the right wrapper is returned.
        */
       function entity_metadata_wrapper($type, $data = NULL, array $info = array()) {
         if ($type == 'entity' || (($entity_info = entity_get_info()) && isset($entity_info[$type]))) {
           // If the passed entity is the global $user, we load the user object by only
           // passing on the user id. The global user is not a fully loaded entity.
           if ($type == 'user' && is_object($data) && $data == $GLOBALS['user']) {
             $data = $data->uid;
+          }
           return new EntityDrupalWrapper($type, $data, $info);
+        }
         elseif ($type == 'list' || entity_property_list_extract_type($type)) {
           return new EntityListWrapper($type, $data, $info);
+        }
         elseif (isset($info['property info'])) {
           return new EntityStructureWrapper($type, $data, $info);
+        }
         else {
           return new EntityValueWrapper($type, $data, $info);
+        }
+      }
       /**
        * Returns a metadata wrapper for accessing site-wide properties.
+       *
        * Although there is no 'site' entity or such, modules may provide info about
        * site-wide properties using hook_entity_property_info(). This function returns
        * a wrapper for making use of this properties.
+       *
        * @return EntityMetadataWrapper
        *   A wrapper for accessing site-wide properties.
+       *
        * @see entity_metadata_system_entity_property_info()
        */
       function entity_metadata_site_wrapper() {
         $site_info = entity_get_property_info('site');
         $info['property info'] = $site_info['properties'];
         return entity_metadata_wrapper('site', FALSE, $info);
+      }
       /**
        * Implements hook_module_implements_alter().
+       *
        * Moves the hook_entity_info_alter() implementation to the bottom so it is
        * invoked after all modules relying on the entity API.
        * That way we ensure to run last and clear the field-info cache after the
        * others added in their bundle information.
+       *
        * @see entity_entity_info_alter()
        */
       function entity_module_implements_alter(&$implementations, $hook) {
         if ($hook == 'entity_info_alter') {
           // Move our hook implementation to the bottom.
           $group = $implementations['entity'];
           unset($implementations['entity']);
           $implementations['entity'] = $group;
+        }
+      }
       /**
        * Implements hook_entity_info_alter().
+       *
        * @see entity_module_implements_alter()
        */
       function entity_entity_info_alter(&$entity_info) {
         _entity_info_add_metadata($entity_info);
         // Populate a default value for the 'configuration' key of all entity types.
         foreach ($entity_info as $type => $info) {
           if (!isset($info['configuration'])) {
             $entity_info[$type]['configuration'] = !empty($info['exportable']);
+          }
           if (isset($info['controller class']) && in_array('EntityAPIControllerInterface', class_implements($info['controller class']))) {
             // Automatically disable field cache when entity cache is used.
             if (!empty($info['entity cache']) && module_exists('entitycache')) {
               $entity_info[$type]['field cache'] = FALSE;
+            }
+          }
+        }
+      }
       /**
        * Adds metadata and callbacks for core entities to the entity info.
        */
       function _entity_info_add_metadata(&$entity_info) {
         // Set plural labels.
         $entity_info['node']['plural label'] = t('Nodes');
         $entity_info['user']['plural label'] = t('Users');
         $entity_info['file']['plural label'] = t('Files');
         // Set descriptions.
         $entity_info['node']['description'] = t('Nodes represent the main site content items.');
         $entity_info['user']['description'] = t('Users who have created accounts on your site.');
         $entity_info['file']['description'] = t('Uploaded file.');
         // Set access callbacks.
         $entity_info['node']['access callback'] = 'entity_metadata_no_hook_node_access';
         $entity_info['user']['access callback'] = 'entity_metadata_user_access';
         // File entity has it's own entity_access function.
         if (!module_exists('file_entity')) {
           $entity_info['file']['access callback'] = 'entity_metadata_file_access';
+        }
         // CRUD function callbacks.
         $entity_info['node']['creation callback'] = 'entity_metadata_create_node';
         $entity_info['node']['save callback'] = 'node_save';
         $entity_info['node']['deletion callback'] = 'node_delete';
         $entity_info['node']['revision deletion callback'] = 'node_revision_delete';
         $entity_info['user']['creation callback'] = 'entity_metadata_create_object';
         $entity_info['user']['save callback'] = 'entity_metadata_user_save';
         $entity_info['user']['deletion callback'] = 'user_delete';
         $entity_info['file']['save callback'] = 'file_save';
         $entity_info['file']['deletion callback'] = 'entity_metadata_delete_file';
         // Form callbacks.
         $entity_info['node']['form callback'] = 'entity_metadata_form_node';
         $entity_info['user']['form callback'] = 'entity_metadata_form_user';
         // URI callbacks.
         if (!isset($entity_info['file']['uri callback'])) {
           $entity_info['file']['uri callback'] = 'entity_metadata_uri_file';
+        }
         // View callbacks.
         $entity_info['node']['view callback'] = 'entity_metadata_view_node';
         $entity_info['user']['view callback'] = 'entity_metadata_view_single';
         if (module_exists('comment')) {
           $entity_info['comment']['plural label'] = t('Comments');
           $entity_info['comment']['description'] = t('Remark or note that refers to a node.');
           $entity_info['comment']['access callback'] = 'entity_metadata_comment_access';
           $entity_info['comment']['creation callback'] = 'entity_metadata_create_comment';
           $entity_info['comment']['save callback'] = 'comment_save';
           $entity_info['comment']['deletion callback'] = 'comment_delete';
           $entity_info['comment']['view callback'] = 'entity_metadata_view_comment';
           $entity_info['comment']['form callback'] = 'entity_metadata_form_comment';
+        }
         if (module_exists('taxonomy')) {
           $entity_info['taxonomy_term']['plural label'] = t('Taxonomy terms');
           $entity_info['taxonomy_term']['description'] = t('Taxonomy terms are used for classifying content.');
           $entity_info['taxonomy_term']['access callback'] = 'entity_metadata_taxonomy_access';
           $entity_info['taxonomy_term']['creation callback'] = 'entity_metadata_create_object';
           $entity_info['taxonomy_term']['save callback'] = 'taxonomy_term_save';
           $entity_info['taxonomy_term']['deletion callback'] = 'taxonomy_term_delete';
           $entity_info['taxonomy_term']['view callback'] = 'entity_metadata_view_single';
           $entity_info['taxonomy_term']['form callback'] = 'entity_metadata_form_taxonomy_term';
           $entity_info['taxonomy_vocabulary']['plural label'] = t('Taxonomy vocabularies');
           $entity_info['taxonomy_vocabulary']['description'] = t('Vocabularies contain related taxonomy terms, which are used for classifying content.');
           $entity_info['taxonomy_vocabulary']['access callback'] = 'entity_metadata_taxonomy_access';
           $entity_info['taxonomy_vocabulary']['creation callback'] = 'entity_metadata_create_object';
           $entity_info['taxonomy_vocabulary']['save callback'] = 'taxonomy_vocabulary_save';
           $entity_info['taxonomy_vocabulary']['deletion callback'] = 'taxonomy_vocabulary_delete';
           $entity_info['taxonomy_vocabulary']['form callback'] = 'entity_metadata_form_taxonomy_vocabulary';
           // Token type mapping.
           $entity_info['taxonomy_term']['token type'] = 'term';
           $entity_info['taxonomy_vocabulary']['token type'] = 'vocabulary';
+        }
+      }
       /**
        * Implements hook_ctools_plugin_directory().
        */
       function entity_ctools_plugin_directory($module, $plugin) {
         if ($module == 'ctools' && $plugin == 'content_types') {
           return 'ctools/content_types';
+        }
+      }

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