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- <?php
- /**
- * @file
- * Module implementing field collection field type.
- */
- /**
- * Implements hook_help().
- */
- function field_collection_help($path, $arg) {
- switch ($path) {
- case 'admin/help#field_collection':
- $output = '';
- $output .= '<h3>' . t('About') . '</h3>';
- $output .= '<p>' . t('The field collection module provides a field, to which any number of fields can be attached. See the <a href="@field-help">Field module help page</a> for more information about fields.', array('@field-help' => url('admin/help/field'))) . '</p>';
- return $output;
- }
- }
- /**
- * Implements hook_form_alter().
- *
- * Checks for a value set by the embedded widget so fields are not displayed
- * with the 'all languages' hint incorrectly.
- */
- function field_collection_form_alter(&$form, &$form_state) {
- if (!empty($form['#field_collection_translation_fields'])) {
- foreach ($form['#field_collection_translation_fields'] as $address) {
- drupal_array_set_nested_value($form, array_merge($address, array('#multilingual')), TRUE);
- }
- }
- }
- /**
- * Implements hook_form_FORM_ID_alter() for field_ui_field_overview_form().
- *
- * Make the names of the field collection fields into links to edit the fields
- * for that field collection on the host's field edit page.
- */
- function field_collection_form_field_ui_field_overview_form_alter(&$form, &$form_state) {
- if (count($form['#fields'])) {
- foreach($form['fields'] as $fieldname => $field) {
- if (!isset($field['type']['#title'])) {
- continue;
- }
- if ($field['type']['#title'] == 'Field collection') {
- $form['fields'][$fieldname]['field_name']['#markup'] =
- l($form['fields'][$fieldname]['field_name']['#markup'], 'admin/structure/field-collections/' . str_replace('_', '-', $fieldname) . '/fields');
- }
- }
- }
- }
- /**
- * Implements hook_ctools_plugin_directory().
- */
- function field_collection_ctools_plugin_directory($module, $plugin) {
- if ($module == 'ctools') {
- return 'ctools/' . $plugin;
- }
- }
- /**
- * Implements hook_entity_info().
- */
- function field_collection_entity_info() {
- $return['field_collection_item'] = array(
- 'label' => t('Field collection item'),
- 'label callback' => 'entity_class_label',
- 'uri callback' => 'entity_class_uri',
- 'entity class' => 'FieldCollectionItemEntity',
- 'controller class' => 'EntityAPIController',
- 'base table' => 'field_collection_item',
- 'revision table' => 'field_collection_item_revision',
- 'fieldable' => TRUE,
- // For integration with Redirect module.
- // @see http://drupal.org/node/1263884
- 'redirect' => FALSE,
- 'entity keys' => array(
- 'id' => 'item_id',
- 'revision' => 'revision_id',
- 'bundle' => 'field_name',
- ),
- 'module' => 'field_collection',
- 'view modes' => array(
- 'full' => array(
- 'label' => t('Full content'),
- 'custom settings' => FALSE,
- ),
- ),
- 'access callback' => 'field_collection_item_access',
- 'deletion callback' => 'field_collection_item_delete',
- 'metadata controller class' => 'FieldCollectionItemMetadataController',
- 'translation' => array(
- 'entity_translation' => array(
- 'class' => 'EntityTranslationFieldCollectionItemHandler',
- ),
- ),
- );
- // Add info about the bundles. We do not use field_info_fields() but directly
- // use field_read_fields() as field_info_fields() requires built entity info
- // to work.
- foreach (field_read_fields(array('type' => 'field_collection')) as $field_name => $field) {
- $return['field_collection_item']['bundles'][$field_name] = array(
- 'label' => t('Field collection @field', array('@field' => $field_name)),
- 'admin' => array(
- 'path' => 'admin/structure/field-collections/%field_collection_field_name',
- 'real path' => 'admin/structure/field-collections/' . strtr($field_name, array('_' => '-')),
- 'bundle argument' => 3,
- 'access arguments' => array('administer field collections'),
- ),
- );
- $path = field_collection_field_get_path($field) . '/%field_collection_item';
- // Enable the first available path scheme as default one.
- if (!isset($return['field_collection_item']['translation']['entity_translation']['base path'])) {
- $return['field_collection_item']['translation']['entity_translation']['base path'] = $path;
- $return['field_collection_item']['translation']['entity_translation']['path wildcard'] = '%field_collection_item';
- $return['field_collection_item']['translation']['entity_translation']['default_scheme'] = $field_name;
- }
- else {
- $return['field_collection_item']['translation']['entity_translation']['path schemes'][$field_name] = array(
- 'base path' => $path,
- );
- }
- }
- if (module_exists('entitycache')) {
- $return['field_collection_item']['field cache'] = FALSE;
- $return['field_collection_item']['entity cache'] = TRUE;
- }
- return $return;
- }
- /**
- * Provide the original entity language.
- *
- * If a language property is defined for the current entity we synchronize the
- * field value using the entity language, otherwise we fall back to
- * LANGUAGE_NONE.
- *
- * @param $entity_type
- * @param $entity
- *
- * @return
- * A language code
- */
- function field_collection_entity_language($entity_type, $entity) {
- if (module_exists('entity_translation') && entity_translation_enabled($entity_type)) {
- $handler = entity_translation_get_handler($entity_type, $entity);
- $langcode = $handler->getLanguage();
- }
- else {
- $langcode = entity_language($entity_type, $entity);
- }
- return !empty($langcode) ? $langcode : LANGUAGE_NONE;
- }
- /**
- * Menu callback for loading the bundle names.
- */
- function field_collection_field_name_load($arg) {
- $field_name = strtr($arg, array('-' => '_'));
- if (($field = field_info_field($field_name)) && $field['type'] == 'field_collection') {
- return $field_name;
- }
- }
- /**
- * Loads a field collection item.
- *
- * @return field_collection_item
- * The field collection item entity or FALSE.
- */
- function field_collection_item_load($item_id, $reset = FALSE) {
- $result = field_collection_item_load_multiple(array($item_id), array(), $reset);
- return $result ? reset($result) : FALSE;
- }
- /**
- * Loads a field collection revision.
- *
- * @param $revision_id
- * The field collection revision ID.
- */
- function field_collection_item_revision_load($revision_id) {
- return entity_revision_load('field_collection_item', $revision_id);
- }
- /**
- * Loads field collection items.
- *
- * @return
- * An array of field collection item entities.
- */
- function field_collection_item_load_multiple($ids = array(), $conditions = array(), $reset = FALSE) {
- return entity_load('field_collection_item', $ids, $conditions, $reset);
- }
- /**
- * Implements hook_menu().
- */
- function field_collection_menu() {
- $items = array();
- if (module_exists('field_ui')) {
- $items['admin/structure/field-collections'] = array(
- 'title' => 'Field collections',
- 'description' => 'Manage fields on field collections.',
- 'page callback' => 'field_collections_overview',
- 'access arguments' => array('administer field collections'),
- 'type' => MENU_NORMAL_ITEM,
- 'file' => 'field_collection.admin.inc',
- );
- }
- // Add menu paths for viewing/editing/deleting field collection items.
- foreach (field_info_fields() as $field) {
- if ($field['type'] == 'field_collection') {
- $path = field_collection_field_get_path($field);
- $count = count(explode('/', $path));
- $items[$path . '/%field_collection_item'] = array(
- 'page callback' => 'field_collection_item_page_view',
- 'page arguments' => array($count),
- 'access callback' => 'entity_access',
- 'access arguments' => array('view', 'field_collection_item', $count),
- 'file' => 'field_collection.pages.inc',
- );
- $items[$path . '/%field_collection_item/view'] = array(
- 'title' => 'View',
- 'type' => MENU_DEFAULT_LOCAL_TASK,
- 'weight' => -10,
- );
- $items[$path . '/%field_collection_item/edit'] = array(
- 'page callback' => 'drupal_get_form',
- 'page arguments' => array('field_collection_item_form', $count),
- 'access callback' => 'entity_access',
- 'access arguments' => array('update', 'field_collection_item', $count),
- 'title' => 'Edit',
- 'type' => MENU_LOCAL_TASK,
- 'context' => MENU_CONTEXT_PAGE | MENU_CONTEXT_INLINE,
- 'file' => 'field_collection.pages.inc',
- );
- $items[$path . '/%field_collection_item/delete'] = array(
- 'page callback' => 'drupal_get_form',
- 'page arguments' => array('field_collection_item_delete_confirm', $count),
- 'access callback' => 'entity_access',
- 'access arguments' => array('delete', 'field_collection_item', $count),
- 'title' => 'Delete',
- 'type' => MENU_LOCAL_TASK,
- 'context' => MENU_CONTEXT_INLINE,
- 'file' => 'field_collection.pages.inc',
- );
- // Add entity type and the entity id as additional arguments.
- $items[$path . '/add/%/%'] = array(
- 'page callback' => 'field_collection_item_add',
- 'page arguments' => array($field['field_name'], $count + 1, $count + 2),
- // The pace callback takes care of checking access itself.
- 'access callback' => TRUE,
- 'file' => 'field_collection.pages.inc',
- );
- // Add menu items for dealing with revisions.
- $items[$path . '/%field_collection_item/revisions/%field_collection_item_revision'] = array(
- 'page callback' => 'field_collection_item_page_view',
- 'page arguments' => array($count + 2),
- 'access callback' => 'entity_access',
- 'access arguments' => array('view', 'field_collection_item', $count + 2),
- 'file' => 'field_collection.pages.inc',
- );
- }
- }
- return $items;
- }
- /**
- * Implements hook_menu_alter() to fix the field collections admin UI tabs.
- */
- function field_collection_menu_alter(&$items) {
- if (module_exists('field_ui') && isset($items['admin/structure/field-collections/%field_collection_field_name/fields'])) {
- // Make the fields task the default local task.
- $items['admin/structure/field-collections/%field_collection_field_name'] = $items['admin/structure/field-collections/%field_collection_field_name/fields'];
- $item = &$items['admin/structure/field-collections/%field_collection_field_name'];
- $item['type'] = MENU_NORMAL_ITEM;
- $item['title'] = 'Manage fields';
- $item['title callback'] = 'field_collection_admin_page_title';
- $item['title arguments'] = array(3);
- $items['admin/structure/field-collections/%field_collection_field_name/fields'] = array(
- 'title' => 'Manage fields',
- 'type' => MENU_DEFAULT_LOCAL_TASK,
- 'weight' => 1,
- );
- }
- }
- /**
- * Menu title callback.
- */
- function field_collection_admin_page_title($field_name) {
- return t('Field collection @field_name', array('@field_name' => $field_name));
- }
- /**
- * Implements hook_admin_paths().
- */
- function field_collection_admin_paths() {
- if (variable_get('node_admin_theme')) {
- return array(
- 'field-collection/*/*/edit' => TRUE,
- 'field-collection/*/*/delete' => TRUE,
- 'field-collection/*/add/*/*' => TRUE,
- );
- }
- }
- /**
- * Implements hook_permission().
- */
- function field_collection_permission() {
- return array(
- 'administer field collections' => array(
- 'title' => t('Administer field collections'),
- 'description' => t('Create and delete fields on field collections.'),
- ),
- );
- }
- /**
- * Determines whether the given user has access to a field collection.
- *
- * @param $op
- * The operation being performed. One of 'view', 'update', 'create', 'delete'.
- * @param $item
- * Optionally a field collection item. If nothing is given, access for all
- * items is determined.
- * @param $account
- * The user to check for. Leave it to NULL to check for the global user.
- * @return boolean
- * Whether access is allowed or not.
- */
- function field_collection_item_access($op, FieldCollectionItemEntity $item = NULL, $account = NULL) {
- // We do not support editing field collection revisions that are not used at
- // the hosts default revision as saving the host might result in a new default
- // revision.
- if (isset($item) && !$item->isInUse() && $op != 'view') {
- return FALSE;
- }
- if (user_access('administer field collections', $account)) {
- return TRUE;
- }
- if (!isset($item)) {
- return FALSE;
- }
- $op = $op == 'view' ? 'view' : 'edit';
- // Access is determined by the entity and field containing the reference.
- $field = field_info_field($item->field_name);
- $entity_access = entity_access($op == 'view' ? 'view' : 'update', $item->hostEntityType(), $item->hostEntity(), $account);
- return $entity_access && field_access($op, $field, $item->hostEntityType(), $item->hostEntity(), $account);
- }
- /**
- * Deletion callback
- */
- function field_collection_item_delete($id) {
- $fci = field_collection_item_load($id);
- if (!empty($fci)) {
- $fci->delete();
- }
- }
- /**
- * Implements hook_theme().
- */
- function field_collection_theme() {
- return array(
- 'field_collection_item' => array(
- 'render element' => 'elements',
- 'template' => 'field-collection-item',
- ),
- 'field_collection_view' => array(
- 'render element' => 'element',
- ),
- );
- }
- /**
- * Implements hook_field_info().
- */
- function field_collection_field_info() {
- return array(
- 'field_collection' => array(
- 'label' => t('Field collection'),
- 'description' => t('This field stores references to embedded entities, which itself may contain any number of fields.'),
- 'instance_settings' => array(),
- 'default_widget' => 'field_collection_hidden',
- 'default_formatter' => 'field_collection_view',
- // As of now there is no UI for setting the path.
- 'settings' => array(
- 'path' => '',
- 'hide_blank_items' => TRUE,
- 'hide_initial_item' => FALSE,
- ),
- // Add entity property info.
- 'property_type' => 'field_collection_item',
- 'property_callbacks' => array('field_collection_entity_metadata_property_callback'),
- ),
- );
- }
- /**
- * Implements hook_field_instance_settings_form().
- */
- function field_collection_field_instance_settings_form($field, $instance) {
- $element['fieldset'] = array(
- '#type' => 'fieldset',
- '#title' => t('Default value'),
- '#collapsible' => FALSE,
- // As field_ui_default_value_widget() does, we change the #parents so that
- // the value below is writing to $instance in the right location.
- '#parents' => array('instance'),
- );
- // Be sure to set the default value to NULL, e.g. to repair old fields
- // that still have one.
- $element['fieldset']['default_value'] = array(
- '#type' => 'value',
- '#value' => NULL,
- );
- $element['fieldset']['content'] = array(
- '#pre' => '<p>',
- '#markup' => t('To specify a default value, configure it via the regular default value setting of each field that is part of the field collection. To do so, go to the <a href="!url">Manage fields</a> screen of the field collection.', array('!url' => url('admin/structure/field-collections/' . strtr($field['field_name'], array('_' => '-')) . '/fields'))),
- '#suffix' => '</p>',
- );
- return $element;
- }
- /**
- * Returns the base path to use for field collection items.
- */
- function field_collection_field_get_path($field) {
- if (empty($field['settings']['path'])) {
- return 'field-collection/' . strtr($field['field_name'], array('_' => '-'));
- }
- return $field['settings']['path'];
- }
- /**
- * Implements hook_field_settings_form().
- */
- function field_collection_field_settings_form($field, $instance) {
- $form['hide_blank_items'] = array(
- '#type' => 'checkbox',
- '#title' => t('Hide blank items'),
- '#default_value' => $field['settings']['hide_blank_items'],
- '#description' => t('Ordinarily a new blank item will be added to unlimited cardinality fields whenever they appear in a form. Checking this will prevent the blank item from appearing if the field already contains data.'),
- '#weight' => 10,
- '#states' => array(
- // Show the setting if the cardinality is -1.
- 'visible' => array(
- ':input[name="field[cardinality]"]' => array('value' => '-1'),
- ),
- ),
- );
- $form['hide_initial_item'] = array(
- '#type' => 'checkbox',
- '#title' => t('Hide initial item'),
- '#default_value' => $field['settings']['hide_initial_item'],
- '#description' => t('Prevent the default blank item from appearing even if the field has no data yet. If checked, the user must explicitly add the field collection.'),
- '#weight' => 11,
- '#states' => array(
- // Show the setting if the cardinality is -1 and hide_blank_items is checked.
- 'visible' => array(
- ':input[name="field[cardinality]"]' => array('value' => '-1'),
- ':input[name="field[settings][hide_blank_items]"]' => array('checked' => TRUE),
- ),
- ),
- );
- return $form;
- }
- /**
- * Implements hook_field_insert().
- */
- function field_collection_field_insert($host_entity_type, $host_entity, $field, $instance, $langcode, &$items) {
- foreach ($items as &$item) {
- if ($entity = field_collection_field_get_entity($item)) {
- if (!empty($host_entity->is_new) && empty($entity->is_new)) {
- // If the host entity is new but we have a field_collection that is not
- // new, it means that its host is being cloned. Thus we need to clone
- // the field collection entity as well.
- $new_entity = clone $entity;
- $new_entity->item_id = NULL;
- $new_entity->revision_id = NULL;
- $new_entity->is_new = TRUE;
- $entity = $new_entity;
- }
- if (!empty($entity->is_new)) {
- $entity->setHostEntity($host_entity_type, $host_entity, field_collection_entity_language($host_entity_type, $host_entity), FALSE);
- }
- $entity->save(TRUE);
- $item = array(
- 'value' => $entity->item_id,
- 'revision_id' => $entity->revision_id,
- );
- }
- }
- }
- /**
- * Implements hook_field_update().
- *
- * Care about removed field collection items.
- *
- * Support saving field collection items in @code $item['entity'] @endcode. This
- * may be used to seamlessly create field collection items during host-entity
- * creation or to save changes to the host entity and its collections at once.
- */
- function field_collection_field_update($host_entity_type, $host_entity, $field, $instance, $langcode, &$items) {
- // When entity language is changed field values are moved to the new language
- // and old values are marked as removed. We need to avoid processing them in
- // this case.
- $entity_langcode = field_collection_entity_language($host_entity_type, $host_entity);
- $original = isset($host_entity->original) ? $host_entity->original : $host_entity;
- $original_langcode = field_collection_entity_language($host_entity_type, $original);
- $langcode = $langcode == $original_langcode ? $entity_langcode : $langcode;
- $top_host = $host_entity;
- while (method_exists($top_host, 'hostEntity')) {
- $top_host = $top_host->hostEntity();
- }
- // Prevent workbench moderation from deleting field collections or paragraphs
- // on node_save() during workbench_moderation_store(), when
- // $host_entity->revision == 0.
- if (!empty($top_host->workbench_moderation['updating_live_revision'])) {
- return;
- }
- // Load items from the original entity.
- $items_original = !empty($original->{$field['field_name']}[$langcode]) ? $original->{$field['field_name']}[$langcode] : array();
- $original_by_id = array_flip(field_collection_field_item_to_ids($items_original));
- foreach ($items as $delta => &$item) {
- // In case the entity has been changed / created, save it and set the id.
- // If the host entity creates a new revision, save new item-revisions as
- // well.
- if (isset($item['entity']) || !empty($host_entity->revision)) {
- if ($entity = field_collection_field_get_entity($item)) {
- // If the host entity is saved as new revision, do the same for the item.
- if (!empty($host_entity->revision) || !empty($host_entity->is_new_revision)) {
- $entity->revision = TRUE;
- // Without this cache clear entity_revision_is_default will
- // incorrectly return false here when creating a new published revision
- if (!isset($cleared_host_entity_cache)) {
- list($entity_id) = entity_extract_ids($host_entity_type, $host_entity);
- entity_get_controller($host_entity_type)->resetCache(array($entity_id));
- $cleared_host_entity_cache = true;
- }
- $is_default = entity_revision_is_default($host_entity_type, $host_entity);
- // If an entity type does not support saving non-default entities,
- // assume it will be saved as default.
- if (!isset($is_default) || $is_default) {
- $entity->default_revision = TRUE;
- $entity->archived = FALSE;
- }
- else {
- $entity->default_revision = FALSE;
- }
- }
- if (!empty($entity->is_new)) {
- $entity->setHostEntity($host_entity_type, $host_entity, $langcode, FALSE);
- }
- else {
- $entity->updateHostEntity($host_entity, $host_entity_type);
- }
- $entity->save(TRUE);
- $item = array(
- 'value' => $entity->item_id,
- 'revision_id' => $entity->revision_id,
- );
- }
- }
- unset($original_by_id[$item['value']]);
- }
- // If there are removed items, care about deleting the item entities.
- if ($original_by_id) {
- $ids = array_flip($original_by_id);
- // If we are creating a new revision, the old-items should be kept but get
- // marked as archived now.
- if (!empty($host_entity->revision)) {
- db_update('field_collection_item')
- ->fields(array('archived' => 1))
- ->condition('item_id', $ids, 'IN')
- ->execute();
- }
- else {
- // Load items from the original entity from all languages checking which
- // are the unused items.
- $current_items = array();
- $languages = language_list();
- foreach ($languages as $langcode_value) {
- $current_items += !empty($host_entity->{$field['field_name']}[$langcode_value->language]) ? $host_entity->{$field['field_name']}[$langcode_value->language] : array();
- $current_by_id = field_collection_field_item_to_ids($current_items);
- }
- $items_to_remove = array_diff($ids, $current_by_id);
- // Delete unused field collection items now.
- foreach (field_collection_item_load_multiple($items_to_remove) as $un_item) {
- $un_item->updateHostEntity($host_entity);
- $un_item->deleteRevision(TRUE);
- }
- }
- }
- }
- /**
- * Implements hook_field_delete().
- */
- function field_collection_field_delete($entity_type, $entity, $field, $instance, $langcode, &$items) {
- // Also delete all embedded entities.
- if ($ids = field_collection_field_item_to_ids($items)) {
- // We filter out entities that are still being referenced by other
- // host-entities. This should never be the case, but it might happened e.g.
- // when modules cloned a node without knowing about field-collection.
- $entity_info = entity_get_info($entity_type);
- $entity_id_name = $entity_info['entity keys']['id'];
- $field_column = key($field['columns']);
- foreach ($ids as $id_key => $id) {
- $query = new EntityFieldQuery();
- $entities = $query
- ->fieldCondition($field['field_name'], $field_column, $id)
- ->execute();
- unset($entities[$entity_type][$entity->$entity_id_name]);
- if (!empty($entities[$entity_type])) {
- // Filter this $id out.
- unset($ids[$id_key]);
- }
- // Set a flag to remember that the host entity is being deleted. See
- // FieldCollectionItemEntity::deleteHostEntityReference().
- // Doing this on $entity is not sufficient because the cache for $entity
- // may have been reset since it was loaded. That would cause
- // hostEntity() to load it from the database later without the flag.
- $field_collection_item = field_collection_item_load($id);
- if ($field_collection_item) {
- $hostEntity = $field_collection_item->hostEntity();
- if (!empty($hostEntity)) {
- $hostEntity->field_collection_deleting = TRUE;
- }
- }
- }
- entity_delete_multiple('field_collection_item', $ids);
- }
- }
- /**
- * Implements hook_field_delete_revision().
- */
- function field_collection_field_delete_revision($entity_type, $entity, $field, $instance, $langcode, &$items) {
- foreach ($items as $item) {
- if (!empty($item['revision_id'])) {
- if ($entity = field_collection_item_revision_load($item['revision_id'])) {
- $entity->deleteRevision(TRUE);
- }
- }
- }
- }
- /**
- * Get an array of field collection item IDs stored in the given field items.
- */
- function field_collection_field_item_to_ids($items) {
- $ids = array();
- foreach ($items as $item) {
- if (!empty($item['value'])) {
- $ids[] = $item['value'];
- }
- }
- return $ids;
- }
- /**
- * Implements hook_field_is_empty().
- */
- function field_collection_field_is_empty($item, $field) {
- if (!empty($item['value'])) {
- return FALSE;
- }
- elseif (isset($item['entity'])) {
- return field_collection_item_is_empty($item['entity']);
- }
- return TRUE;
- }
- /**
- * Determines whether a field collection item entity is empty based on the collection-fields.
- */
- function field_collection_item_is_empty(FieldCollectionItemEntity $item) {
- $instances = field_info_instances('field_collection_item', $item->field_name);
- $is_empty = TRUE;
- // Check whether all fields are booleans.
- $all_boolean = $instances && !(bool) array_filter($instances, '_field_collection_field_is_not_boolean');
- foreach ($instances as $instance) {
- $field_name = $instance['field_name'];
- $field = field_info_field($field_name);
- // Boolean fields as those are always considered non-empty, thus their
- // information is not useful and can be skipped by default.
- if (!$all_boolean && $field['type'] == 'list_boolean') {
- continue;
- }
- // Determine the list of languages to iterate on.
- $languages = field_available_languages('field_collection_item', $field);
- foreach ($languages as $langcode) {
- if (!empty($item->{$field_name}[$langcode])) {
- // If at least one collection-field is not empty; the
- // field collection item is not empty.
- foreach ($item->{$field_name}[$langcode] as $field_item) {
- if (!module_invoke($field['module'], 'field_is_empty', $field_item, $field)) {
- $is_empty = FALSE;
- }
- }
- }
- }
- }
- // Allow other modules a chance to alter the value before returning.
- drupal_alter('field_collection_is_empty', $is_empty, $item);
- return $is_empty;
- }
- /**
- * Callback used by array_filter in field_collection_is_empty.
- */
- function _field_collection_field_is_not_boolean($instance) {
- $field = field_info_field($instance['field_name']);
- return $field['type'] != 'list_boolean';
- }
- /**
- * Implements hook_field_formatter_info().
- */
- function field_collection_field_formatter_info() {
- return array(
- 'field_collection_list' => array(
- 'label' => t('Links to field collection items'),
- 'field types' => array('field_collection'),
- 'settings' => array(
- 'edit' => t('Edit'),
- 'translate' => t('Translate'),
- 'delete' => t('Delete'),
- 'add' => t('Add'),
- 'description' => TRUE,
- ),
- ),
- 'field_collection_view' => array(
- 'label' => t('Field collection items'),
- 'field types' => array('field_collection'),
- 'settings' => array(
- 'edit' => t('Edit'),
- 'delete' => t('Delete'),
- 'add' => t('Add'),
- 'description' => TRUE,
- 'view_mode' => 'full',
- ),
- ),
- 'field_collection_fields' => array(
- 'label' => t('Fields only'),
- 'field types' => array('field_collection'),
- 'settings' => array(
- 'view_mode' => 'full',
- ),
- ),
- );
- }
- /**
- * Implements hook_field_formatter_settings_form().
- */
- function field_collection_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
- $display = $instance['display'][$view_mode];
- $settings = $display['settings'];
- $elements = array();
- if ($display['type'] != 'field_collection_fields') {
- $elements['add'] = array(
- '#type' => 'textfield',
- '#title' => t('Add link title'),
- '#default_value' => $settings['add'],
- '#description' => t('Leave the title empty, to hide the link.'),
- );
- $elements['edit'] = array(
- '#type' => 'textfield',
- '#title' => t('Edit link title'),
- '#default_value' => $settings['edit'],
- '#description' => t('Leave the title empty, to hide the link.'),
- );
- $elements['translate'] = array(
- '#type' => 'textfield',
- '#title' => t('Translate link title'),
- '#default_value' => $settings['translate'],
- '#description' => t('Leave the title empty, to hide the link.'),
- '#access' => field_collection_item_is_translatable(),
- );
- $elements['delete'] = array(
- '#type' => 'textfield',
- '#title' => t('Delete link title'),
- '#default_value' => $settings['delete'],
- '#description' => t('Leave the title empty, to hide the link.'),
- );
- $elements['description'] = array(
- '#type' => 'checkbox',
- '#title' => t('Show the field description beside the add link.'),
- '#default_value' => $settings['description'],
- '#description' => t('If enabled and the add link is shown, the field description is shown in front of the add link.'),
- );
- }
- // Add a select form element for view_mode if viewing the rendered field_collection.
- if ($display['type'] !== 'field_collection_list') {
- $entity_type = entity_get_info('field_collection_item');
- $options = array();
- foreach ($entity_type['view modes'] as $mode => $info) {
- $options[$mode] = $info['label'];
- }
- $elements['view_mode'] = array(
- '#type' => 'select',
- '#title' => t('View mode'),
- '#options' => $options,
- '#default_value' => $settings['view_mode'],
- '#description' => t('Select the view mode'),
- );
- }
- return $elements;
- }
- /**
- * Implements hook_field_formatter_settings_summary().
- */
- function field_collection_field_formatter_settings_summary($field, $instance, $view_mode) {
- $display = $instance['display'][$view_mode];
- $settings = $display['settings'];
- $output = array();
- if ($display['type'] !== 'field_collection_fields') {
- $links = field_collection_get_operations($settings, TRUE);
- if ($links) {
- $output[] = t('Links: @links', array('@links' => check_plain(implode(', ', $links))));
- }
- else {
- $output[] = t('Links: none');
- }
- }
- if ($display['type'] !== 'field_collection_list') {
- $entity_type = entity_get_info('field_collection_item');
- if (!empty($entity_type['view modes'][$settings['view_mode']]['label'])) {
- $output[] = t('View mode: @mode', array('@mode' => $entity_type['view modes'][$settings['view_mode']]['label']));
- }
- }
- return implode('<br>', $output);
- }
- /**
- * Implements hook_field_formatter_view().
- */
- function field_collection_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
- $element = array();
- $settings = $display['settings'];
- switch ($display['type']) {
- case 'field_collection_list':
- foreach ($items as $delta => $item) {
- if ($field_collection = field_collection_field_get_entity($item)) {
- $output = l($field_collection->label(), $field_collection->path());
- $links = array();
- foreach (field_collection_get_operations($settings) as $op => $label) {
- if ($settings[$op] && entity_access($op == 'edit' ? 'update' : $op, 'field_collection_item', $field_collection)) {
- $title = entity_i18n_string("field:{$field['field_name']}:{$instance['bundle']}:setting_$op", $settings[$op]);
- $links[] = l($title, $field_collection->path() . '/' . $op, array('query' => drupal_get_destination()));
- }
- }
- if ($links) {
- $output .= ' (' . implode('|', $links) . ')';
- }
- $element[$delta] = array('#markup' => $output);
- }
- }
- field_collection_field_formatter_links($element, $entity_type, $entity, $field, $instance, $langcode, $items, $display);
- break;
- case 'field_collection_view':
- $view_mode = !empty($display['settings']['view_mode']) ? $display['settings']['view_mode'] : 'full';
- foreach ($items as $delta => $item) {
- if ($field_collection = field_collection_field_get_entity($item)) {
- $element[$delta]['entity'] = $field_collection->view($view_mode);
- $element[$delta]['#theme_wrappers'] = array('field_collection_view');
- $element[$delta]['#attributes']['class'][] = 'field-collection-view';
- $element[$delta]['#attributes']['class'][] = 'clearfix';
- $element[$delta]['#attributes']['class'][] = drupal_clean_css_identifier('view-mode-' . $view_mode);
- $links = array(
- '#theme' => 'links__field_collection_view',
- );
- $links['#attributes']['class'][] = 'field-collection-view-links';
- foreach (field_collection_get_operations($settings) as $op => $label) {
- if ($settings[$op] && entity_access($op == 'edit' ? 'update' : $op, 'field_collection_item', $field_collection)) {
- $links['#links'][$op] = array(
- 'title' => entity_i18n_string("field:{$field['field_name']}:{$instance['bundle']}:setting_$op", $settings[$op]),
- 'href' => $field_collection->path() . '/' . $op,
- 'query' => drupal_get_destination(),
- );
- }
- }
- $element[$delta]['links'] = $links;
- }
- }
- field_collection_field_formatter_links($element, $entity_type, $entity, $field, $instance, $langcode, $items, $display);
- if (!empty($items) || !empty($element['#suffix'])) {
- $element['#attached']['css'][] = drupal_get_path('module', 'field_collection') . '/field_collection.theme.css';
- }
- break;
- case 'field_collection_fields':
- $view_mode = !empty($display['settings']['view_mode']) ? $display['settings']['view_mode'] : 'full';
- foreach ($items as $delta => $item) {
- if ($field_collection = field_collection_field_get_entity($item)) {
- $element[$delta]['entity'] = $field_collection->view($view_mode);
- }
- }
- break;
- }
- return $element;
- }
- /**
- * Returns an array of enabled operations.
- */
- function field_collection_get_operations($settings, $add = FALSE) {
- $operations = array();
- if ($add) {
- $operations[] = 'add';
- }
- $operations[] = 'edit';
- if (field_collection_item_is_translatable()) {
- $operations[] = 'translate';
- }
- $operations[] = 'delete';
- global $field_collection_operation_keys;
- $field_collection_operation_keys = array_flip($operations);
- $operations = array_filter(array_intersect_key($settings, $field_collection_operation_keys));
- asort($operations);
- return $operations;
- }
- /**
- * Helper function to add links to a field collection field.
- */
- function field_collection_field_formatter_links(&$element, $entity_type, $entity, $field, $instance, $langcode, $items, $display) {
- $settings = $display['settings'];
- $allow_create_item = FALSE;
- if ($settings['add'] && ($field['cardinality'] == FIELD_CARDINALITY_UNLIMITED || count($items) < $field['cardinality'])) {
- // Check whether the current is allowed to create a new item.
- $field_collection_item = entity_create('field_collection_item', array('field_name' => $field['field_name']));
- $field_collection_item->setHostEntity($entity_type, $entity, $langcode, FALSE);
- if (entity_access('create', 'field_collection_item', $field_collection_item)) {
- $allow_create_item = TRUE;
- $path = field_collection_field_get_path($field);
- list($id) = entity_extract_ids($entity_type, $entity);
- $element['#suffix'] = '';
- if (!empty($settings['description'])) {
- $element['#suffix'] .= '<div class="description field-collection-description">' . field_filter_xss($instance['description']) . '</div>';
- }
- $title = entity_i18n_string("field:{$field['field_name']}:{$instance['bundle']}:setting_add", $settings['add']);
- $add_path = $path . '/add/' . $entity_type . '/' . $id;
- $element['#suffix'] .= '<ul class="action-links action-links-field-collection-add"><li>';
- $element['#suffix'] .= l($title, $add_path, array('query' => drupal_get_destination()));
- $element['#suffix'] .= '</li></ul>';
- }
- }
- // If there is no add link, add a special class to the last item.
- if (!empty($items) || $allow_create_item) {
- if (empty($element['#suffix'])) {
- $index = count(element_children($element)) - 1;
- $element[$index]['#attributes']['class'][] = 'field-collection-view-final';
- }
- $element += array('#prefix' => '', '#suffix' => '');
- $element['#prefix'] .= '<div class="field-collection-container clearfix">';
- $element['#suffix'] .= '</div>';
- }
- return $element;
- }
- /**
- * Themes field collection items printed using the field_collection_view formatter.
- */
- function theme_field_collection_view($variables) {
- $element = $variables['element'];
- return '<div' . drupal_attributes($element['#attributes']) . '>' . $element['#children'] . '</div>';
- }
- /**
- * Implements hook_field_widget_info().
- */
- function field_collection_field_widget_info() {
- return array(
- 'field_collection_hidden' => array(
- 'label' => t('Hidden'),
- 'field types' => array('field_collection'),
- 'behaviors' => array(
- 'multiple values' => FIELD_BEHAVIOR_CUSTOM,
- 'default value' => FIELD_BEHAVIOR_NONE,
- ),
- ),
- 'field_collection_embed' => array(
- 'label' => t('Embedded'),
- 'field types' => array('field_collection'),
- 'behaviors' => array(
- 'multiple values' => FIELD_BEHAVIOR_DEFAULT,
- 'default value' => FIELD_BEHAVIOR_NONE,
- ),
- ),
- );
- }
- /**
- * Implements hook_field_widget_form().
- */
- function field_collection_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
- static $recursion = 0;
- switch ($instance['widget']['type']) {
- case 'field_collection_hidden':
- return $element;
- case 'field_collection_embed':
- // If the field collection item form contains another field collection,
- // we might ran into a recursive loop. Prevent that.
- if ($recursion++ > 3) {
- drupal_set_message(t('The field collection item form has not been embedded to avoid recursive loops.'), 'error');
- return $element;
- }
- $field_parents = $element['#field_parents'];
- $field_name = $element['#field_name'];
- $language = $element['#language'];
- // Nest the field collection item entity form in a dedicated parent space,
- // by appending [field_name, langcode, delta] to the current parent space.
- // That way the form values of the field collection item are separated.
- $parents = array_merge($field_parents, array($field_name, $language, $delta));
- $element += array(
- '#element_validate' => array('field_collection_field_widget_embed_validate'),
- '#parents' => $parents,
- );
- if ($field['cardinality'] == 1) {
- $element['#type'] = 'fieldset';
- }
- $field_state = field_form_get_state($field_parents, $field_name, $language, $form_state);
- if (field_collection_hide_blank_items($field) && $delta == $field_state['items_count'] && $delta > 0) {
- // Do not add a blank item. Also see
- // field_collection_field_attach_form() for correcting #max_delta.
- $recursion--;
- return FALSE;
- }
- elseif (field_collection_hide_blank_items($field) && $field_state['items_count'] == 0) {
- // We show one item, so also specify that as item count. So when the
- // add button is pressed the item count will be 2 and we show two items.
- $field_state['items_count'] = 1;
- }
- if (isset($field_state['entity'][$delta])) {
- $field_collection_item = $field_state['entity'][$delta];
- }
- else {
- if (isset($items[$delta])) {
- $field_collection_item = field_collection_field_get_entity($items[$delta], $field_name);
- }
- // Show an empty collection if we have no existing one or it does not
- // load.
- if (empty($field_collection_item)) {
- $field_collection_item = entity_create('field_collection_item', array('field_name' => $field_name));
- $field_collection_item->setHostEntity($element['#entity_type'], $element['#entity'], $langcode);
- }
- // Put our entity in the form state, so FAPI callbacks can access it.
- $field_state['entity'][$delta] = $field_collection_item;
- }
- // Register a child entity translation handler to properly deal with the
- // entity form language.
- if (field_collection_item_is_translatable()) {
- $element['#host_entity_type'] = $element['#entity_type'];
- $element['#host_entity'] = $element['#entity'];
- // Give each field collection item a unique entity translation handler
- // ID, otherwise an infinite loop occurs when adding values to nested
- // field collection items.
- if (!isset($field_collection_item->entity_translation_handler_id)) {
- list($id, $revision_id) = entity_extract_ids('field_collection_item', $field_collection_item);
- $revision_id = isset($revision_id) ? $revision_id : 0;
- $field_collection_item->entity_translation_handler_id = 'field_collection_item' . '-' . (!empty($id) ? 'eid-' . $id . '-' . $revision_id : 'new-' . rand());
- }
- $element['#field_collection_item'] = $field_collection_item;
- field_collection_add_child_translation_handler($element);
- // Ensure this is executed even with cached forms. This is mainly useful
- // when dealing with AJAX calls.
- $element['#process'][] = 'field_collection_add_child_translation_handler';
- // Flag the field to be processed in field_collection_form_alter to
- // avoid adding incorrect translation hints.
- $address = array_slice($element['#parents'], 0, -2);
- if (empty($form['#field_collection_translation_fields']) || !in_array($address, $form['#field_collection_translation_fields'])) {
- $form['#field_collection_translation_fields'][] = $address;
- }
- }
- // Add the subform
- field_form_set_state($field_parents, $field_name, $language, $form_state, $field_state);
- // Set the language to to parent entity language, because
- // field_content_languages() will always set $language to LANGUAGE_NONE.
- if (field_collection_item_is_translatable()) {
- field_attach_form('field_collection_item', $field_collection_item, $element, $form_state, entity_language($element['#host_entity_type'], $element['#host_entity']));
- }
- else {
- field_attach_form('field_collection_item', $field_collection_item, $element, $form_state, $language);
- }
- // Make sure subfields get translatable clues (like 'all languages')
- if (field_collection_item_is_translatable() && variable_get('entity_translation_shared_labels', TRUE)) {
- foreach (element_children($element) as $key) {
- $element[$key]['#process'][] = 'entity_translation_element_translatability_clue';
- }
- }
- if (empty($element['#required'])) {
- $element['#after_build'][] = 'field_collection_field_widget_embed_delay_required_validation';
- }
- if ($field['cardinality'] == FIELD_CARDINALITY_UNLIMITED && empty($form_state['programmed'])) {
- $element['remove_button'] = array(
- '#delta' => $delta,
- '#name' => implode('_', $parents) . '_remove_button',
- '#type' => 'submit',
- '#value' => t('Remove'),
- '#validate' => array(),
- '#submit' => array('field_collection_remove_submit'),
- '#limit_validation_errors' => array(),
- '#ajax' => array(
- // 'wrapper' is filled in field_collection_field_attach_form().
- 'callback' => 'field_collection_remove_js',
- 'effect' => 'fade',
- ),
- '#weight' => 1000,
- );
- }
- $recursion--;
- return $element;
- }
- }
- /**
- * Implements hook_entity_translation_source_field_state_alter()
- */
- function field_collection_entity_translation_source_field_state_alter(&$field_state) {
- if (isset($field_state['entity'])) {
- module_load_include('inc', 'entity', 'includes/entity.ui');
- foreach ($field_state['entity'] as $delta => $entity) {
- if ($entity instanceof FieldCollectionItemEntity) {
- $field_state['entity'][$delta] = entity_ui_clone_entity('field_collection_item', $entity);
- }
- }
- }
- }
- /**
- * Registers a child entity translation handler for the given element.
- */
- function field_collection_add_child_translation_handler($element) {
- $handler = entity_translation_get_handler($element['#host_entity_type'], $element['#host_entity']);
- $handler->addChild('field_collection_item', $element['#field_collection_item']);
- return $element;
- }
- /**
- * Implements hook_field_attach_form().
- *
- * Corrects #max_delta when we hide the blank field collection item.
- *
- * @see field_add_more_js()
- * @see field_collection_field_widget_form()
- */
- function field_collection_field_attach_form($entity_type, $entity, &$form, &$form_state, $langcode) {
- foreach (field_info_instances($entity_type, $form['#bundle']) as $field_name => $instance) {
- $field = field_info_field($field_name);
- if ($field['type'] == 'field_collection' && field_collection_hide_blank_items($field)
- && field_access('edit', $field, $entity_type) && $instance['widget']['type'] == 'field_collection_embed') {
- $element_langcode = $form[$field_name]['#language'];
- if ($form[$field_name][$element_langcode]['#max_delta'] > 0) {
- $form[$field_name][$element_langcode]['#max_delta']--;
- }
- // Remove blank form elements and force user to explicitly add a field
- // collection if both 'hide_initial_item' and 'hide_blank_items' are TRUE.
- if ($field['settings']['hide_initial_item']
- && $field['settings']['hide_blank_items']
- && field_collection_item_is_empty($form[$field_name][$element_langcode][0]['#entity'])) {
- _field_collection_process_children_attached($form[$field_name][$element_langcode][0]);
- unset($form[$field_name][$element_langcode][0]);
- unset($form_state['field']['#parents'][$field_name][$element_langcode][0]);
- }
- }
- if ($field['type'] == 'field_collection'
- && $field['cardinality'] == FIELD_CARDINALITY_UNLIMITED
- && empty($form_state['programmed'])
- && field_access('edit', $field, $entity_type)
- && $instance['widget']['type'] == 'field_collection_embed') {
- $element_langcode = $form[$field_name]['#language'];
- $element_wrapper = $form[$field_name][$element_langcode]['add_more']['#ajax']['wrapper'];
- for ($i = 0; $i <= $form[$field_name][$element_langcode]['#max_delta']; $i++) {
- if (isset($form[$field_name][$element_langcode][$i]['remove_button'])) {
- $form[$field_name][$element_langcode][$i]['remove_button']['#ajax']['wrapper'] = $element_wrapper;
- }
- }
- }
- }
- // If FCs are translatable, make sure we mark any necessary sub-fields in the
- // FC widget as translatable as well.
- if ($entity_type == 'field_collection_item'
- && field_collection_item_is_translatable()
- ) {
- foreach (field_info_instances($entity_type, $form['#bundle']) as $field_name => $instance) {
- $field = field_info_field($field_name);
- if (isset($field['translatable'])) {
- $form[$field_name]['#multilingual'] = (boolean) $field['translatable'];
- }
- }
- }
- }
- /**
- * Recurses through field children and processes thier attachments.
- */
- function _field_collection_process_children_attached($elements) {
- if (empty($elements)) {
- return;
- }
- if (isset($elements['#attached'])) {
- drupal_process_attached($elements);
- }
- foreach (element_children($elements) as $key) {
- _field_collection_process_children_attached($elements[$key]);
- }
- }
- /**
- * AJAX callback for removing a field collection item.
- *
- * This returns the new page content to replace the page content made obsolete
- * by the form submission.
- *
- * @see field_collection_remove_submit()
- */
- function field_collection_remove_js($form, $form_state) {
- $button = $form_state['triggering_element'];
- // Go one level up in the form, to the widgets container.
- $element = drupal_array_get_nested_value($form, array_slice($button['#array_parents'], 0, -2));
- $field_name = $element['#field_name'];
- $langcode = $element['#language'];
- $parents = $element['#field_parents'];
- $field_state = field_form_get_state($parents, $field_name, $langcode, $form_state);
- $field = $field_state['field'];
- if ($field['cardinality'] != FIELD_CARDINALITY_UNLIMITED) {
- return;
- }
- return $element;
- }
- /**
- * Submit callback to remove an item from the field UI multiple wrapper.
- *
- * When a remove button is submitted, we need to find the item that it
- * referenced and delete it. Since field UI has the deltas as a straight
- * unbroken array key, we have to renumber everything down. Since we do this
- * we *also* need to move all the deltas around in the $form_state['values'],
- * $form_state['input'], and $form_state['field'] so that user changed values
- * follow. This is a bit of a complicated process.
- */
- function field_collection_remove_submit($form, &$form_state) {
- $button = $form_state['triggering_element'];
- $delta = $button['#delta'];
- // Where in the form we'll find the parent element.
- $address = array_slice($button['#array_parents'], 0, -2);
- $values_address = array_slice($button['#parents'], 0, -2);
- // Go one level up in the form, to the widgets container.
- $parent_element = drupal_array_get_nested_value($form, $address);
- $field_name = $parent_element['#field_name'];
- $langcode = $parent_element['#language'];
- $parents = $parent_element['#field_parents'];
- $field_state = field_form_get_state($parents, $field_name, $langcode, $form_state);
- // Use the actual array of field collection items as the upper limit of this
- // for loop rather than 'item_count'. This is because it will be creating extra
- // dummy items here and the two measures go out of sync after the fist delete.
- $field_collection_item_count = count($field_state['entity']) - 1;
- // Go ahead and renumber everything from our delta to the last
- // item down one. This will overwrite the item being removed.
- for ($i = $delta; $i <= $field_collection_item_count; $i++) {
- $old_element_address = array_merge($address, array($i + 1));
- $old_element_values_address = array_merge($values_address, array($i + 1));
- $new_element_values_address = array_merge($values_address, array($i));
- $moving_element = drupal_array_get_nested_value($form, $old_element_address);
- $moving_element_value = drupal_array_get_nested_value($form_state['values'], $old_element_values_address);
- $moving_element_input = drupal_array_get_nested_value($form_state['input'], $old_element_values_address);
- $moving_element_field = drupal_array_get_nested_value($form_state['field']['#parents'], $old_element_address);
- // Tell the element where it's being moved to.
- $moving_element['#parents'] = $new_element_values_address;
- // Move the element around.
- form_set_value($moving_element, $moving_element_value, $form_state);
- drupal_array_set_nested_value($form_state['input'], $moving_element['#parents'], $moving_element_input);
- drupal_array_set_nested_value($form_state['field']['#parents'], $moving_element['#parents'], $moving_element_field);
- // Move the entity in our saved state.
- if (isset($field_state['entity'][$i + 1])) {
- $field_state['entity'][$i] = $field_state['entity'][$i + 1];
- }
- else {
- unset($field_state['entity'][$i]);
- }
- }
- // Replace the deleted entity with an empty one. This helps to ensure that
- // trying to add a new entity won't ressurect a deleted entity from the
- // trash bin.
- $count = count($field_state['entity']);
- $field_state['entity'][$count] = entity_create('field_collection_item', array('field_name' => $field_name));
- // Then remove the last item. But we must not go negative.
- if ($field_state['items_count'] > 0) {
- $field_state['items_count']--;
- }
- // Fix the weights. Field UI lets the weights be in a range of
- // (-1 * item_count) to (item_count). This means that when we remove one,
- // the range shrinks; weights outside of that range then get set to
- // the first item in the select by the browser, floating them to the top.
- // We use a brute force method because we lost weights on both ends
- // and if the user has moved things around, we have to cascade because
- // if I have items weight weights 3 and 4, and I change 4 to 3 but leave
- // the 3, the order of the two 3s now is undefined and may not match what
- // the user had selected.
- $input = drupal_array_get_nested_value($form_state['input'], $values_address);
- // Sort by weight
- uasort($input, '_field_sort_items_helper');
- // Reweight everything in the correct order.
- $weight = -1 * $field_state['items_count'];
- foreach ($input as $key => $item) {
- if ($item) {
- $input[$key]['_weight'] = $weight++;
- }
- }
- drupal_array_set_nested_value($form_state['input'], $values_address, $input);
- field_form_set_state($parents, $field_name, $langcode, $form_state, $field_state);
- $form_state['rebuild'] = TRUE;
- }
- /**
- * Gets a field collection item entity for a given field item.
- *
- * @param $field_name
- * (optional) If given and there is no entity yet, a new entity object is
- * created for the given item.
- *
- * @return
- * The entity object or FALSE.
- */
- function field_collection_field_get_entity(&$item, $field_name = NULL) {
- if (isset($item['entity'])) {
- return $item['entity'];
- }
- elseif (isset($item['value'])) {
- // By default always load the default revision, so caches get used.
- $entity = field_collection_item_load($item['value']);
- if ($entity && $entity->revision_id != $item['revision_id']) {
- // A non-default revision is a referenced, so load this one.
- $entity = field_collection_item_revision_load($item['revision_id']);
- }
- return $entity;
- }
- elseif (!isset($item['entity']) && isset($field_name)) {
- $item['entity'] = entity_create('field_collection_item', array('field_name' => $field_name));
- return $item['entity'];
- }
- return FALSE;
- }
- /**
- * FAPI #after_build of an individual field collection element to delay the validation of #required.
- */
- function field_collection_field_widget_embed_delay_required_validation(&$element, &$form_state) {
- // If the process_input flag is set, the form and its input is going to be
- // validated. Prevent #required (sub)fields from throwing errors while
- // their non-#required field collection item is empty.
- if ($form_state['process_input']) {
- _field_collection_collect_required_elements($element, $element['#field_collection_required_elements']);
- }
- return $element;
- }
- function _field_collection_collect_required_elements(&$element, &$required_elements) {
- // Recurse through all children.
- foreach (element_children($element) as $key) {
- if (isset($element[$key]) && $element[$key]) {
- _field_collection_collect_required_elements($element[$key], $required_elements);
- }
- }
- if (!empty($element['#required'])) {
- $element['#required'] = FALSE;
- $required_elements[] = &$element;
- $element += array('#pre_render' => array());
- array_unshift($element['#pre_render'], 'field_collection_field_widget_render_required');
- }
- }
- /**
- * #pre_render callback that ensures the element is rendered as being required.
- */
- function field_collection_field_widget_render_required($element) {
- $element['#required'] = TRUE;
- return $element;
- }
- /**
- * FAPI validation of an individual field collection element.
- */
- function field_collection_field_widget_embed_validate($element, &$form_state, $complete_form) {
- $field = field_widget_field($element, $form_state);
- $field_parents = $element['#field_parents'];
- $field_name = $element['#field_name'];
- $language = $element['#language'];
- $field_state = field_form_get_state($field_parents, $field_name, $language, $form_state);
- // We have to populate the field_collection_item before we can attach it to
- // the form.
- if (isset($field_state['entity'][$element['#delta']])) {
- $field_collection_item = $field_state['entity'][$element['#delta']];
- }
- else {
- $field_values = drupal_array_get_nested_value($form_state['values'], $field_state['array_parents']);
- if ($field_values[$element['#delta']]) {
- $field_collection_item = entity_create('field_collection_item', array('field_name' => $field['field_name']));
- foreach ($field_values[$element['#delta']] as $key => $value) {
- if (property_exists($field_collection_item, $key)) {
- $field_collection_item->{$key} = $value;
- }
- }
- }
- }
- // Attach field API validation of the embedded form.
- field_attach_form_validate('field_collection_item', $field_collection_item, $element, $form_state);
- // Handle a possible language change.
- if (field_collection_item_is_translatable()) {
- $handler = entity_translation_get_handler('field_collection_item', $field_collection_item);
- $element_values = &drupal_array_get_nested_value($form_state['values'], $field_state['array_parents']);
- $element_form_state = array('values' => &$element_values[$element['#delta']]);
- $handler->entityFormLanguageWidgetSubmit($element, $element_form_state);
- }
- // Now validate required elements if the entity is not empty.
- if (!field_collection_item_is_empty($field_collection_item) && !empty($element['#field_collection_required_elements'])) {
- foreach ($element['#field_collection_required_elements'] as &$elements) {
- // Copied from _form_validate().
- if (isset($elements['#needs_validation'])) {
- $is_empty_multiple = (!count($elements['#value']));
- $is_empty_string = (is_string($elements['#value']) && drupal_strlen(trim($elements['#value'])) == 0);
- $is_empty_value = ($elements['#value'] === 0);
- $is_empty_option = (isset($elements['#options']['_none']) && $elements['#value'] == '_none');
- // Validate fields with hook_field_is_empty. This will handle cases when
- // file entity passes validation when it shouldn't.
- $is_empty_field = FALSE;
- if (isset($elements['#field_name'])) {
- $field = field_info_field($elements['#field_name']);
- // Extract field values array with all columns from form_state.
- // The field we're looking at is always 3 levels deeper than field
- // collection field.
- $field_depth = count($elements['#field_parents']) + 3;
- $field_values = drupal_array_get_nested_value($form_state['values'], array_slice($elements['#array_parents'], 0, $field_depth));
- // Special case lists since we don't get the correct array_parents.
- if (count($elements['#array_parents']) < $field_depth && is_array($field_values)) {
- $field_values = reset($field_values);
- }
- $is_empty_field = module_invoke($field['module'], 'field_is_empty', $field_values, $field);
- }
- if ($is_empty_multiple || $is_empty_string || $is_empty_value || $is_empty_option || $is_empty_field) {
- if (isset($elements['#title'])) {
- form_error($elements, t('@name field is required in the @collection collection.', array(
- '@name' => $elements['#title'],
- '@collection' => $field_state['instance']['label'],
- )));
- }
- else {
- form_error($elements);
- }
- }
- }
- }
- }
- // Only if the form is being submitted, finish the collection entity and
- // prepare it for saving.
- if ($form_state['submitted'] && !form_get_errors()) {
- field_attach_submit('field_collection_item', $field_collection_item, $element, $form_state);
- // Load initial form values into $item, so any other form values below the
- // same parents are kept.
- $item = drupal_array_get_nested_value($form_state['values'], $element['#parents']);
- // Set the _weight if it is a multiple field.
- if (isset($element['_weight']) && ($field['cardinality'] > 1 || $field['cardinality'] == FIELD_CARDINALITY_UNLIMITED)) {
- $item['_weight'] = $element['_weight']['#value'];
- }
- // Ensure field columns are poroperly populated.
- $item['value'] = $field_collection_item->item_id;
- $item['revision_id'] = $field_collection_item->revision_id;
- // Put the field collection item in $item['entity'], so it is saved with
- // the host entity via hook_field_presave() / field API if it is not empty.
- // @see field_collection_field_presave()
- $item['entity'] = $field_collection_item;
- form_set_value($element, $item, $form_state);
- }
- }
- /**
- * Implements hook_field_create_field().
- */
- function field_collection_field_create_field($field) {
- if ($field['type'] == 'field_collection') {
- field_attach_create_bundle('field_collection_item', $field['field_name']);
- // Clear caches.
- entity_info_cache_clear();
- // Do not directly issue menu rebuilds here to avoid potentially multiple
- // rebuilds. Instead, let menu_get_item() issue the rebuild on the next
- // request.
- variable_set('menu_rebuild_needed', TRUE);
- }
- }
- /**
- * Implements hook_field_delete_field().
- */
- function field_collection_field_delete_field($field) {
- if ($field['type'] == 'field_collection') {
- // Notify field.module that field collection was deleted.
- field_attach_delete_bundle('field_collection_item', $field['field_name']);
- // Clear caches.
- entity_info_cache_clear();
- // Do not directly issue menu rebuilds here to avoid potentially multiple
- // rebuilds. Instead, let menu_get_item() issue the rebuild on the next
- // request.
- variable_set('menu_rebuild_needed', TRUE);
- }
- }
- /**
- * Implements hook_i18n_string_list_{textgroup}_alter().
- */
- function field_collection_i18n_string_list_field_alter(&$properties, $type, $instance) {
- if ($type == 'field_instance') {
- $field = field_info_field($instance['field_name']);
- if ($field['type'] == 'field_collection' && !empty($instance['display'])) {
- foreach ($instance['display'] as $view_mode => $display) {
- if ($display['type'] != 'field_collection_fields') {
- $display['settings'] += array('edit' => 'edit', 'translate' => 'translate', 'delete' => 'delete', 'add' => 'add');
- $properties['field'][$instance['field_name']][$instance['bundle']]['setting_edit'] = array(
- 'title' => t('Edit link title'),
- 'string' => $display['settings']['edit'],
- );
- $properties['field'][$instance['field_name']][$instance['bundle']]['setting_translate'] = array(
- 'title' => t('Edit translate title'),
- 'string' => $display['settings']['translate'],
- );
- $properties['field'][$instance['field_name']][$instance['bundle']]['setting_delete'] = array(
- 'title' => t('Delete link title'),
- 'string' => $display['settings']['delete'],
- );
- $properties['field'][$instance['field_name']][$instance['bundle']]['setting_add'] = array(
- 'title' => t('Add link title'),
- 'string' => $display['settings']['add'],
- );
- }
- }
- }
- }
- }
- /**
- * Implements hook_views_api().
- */
- function field_collection_views_api() {
- return array(
- 'api' => '3.0-alpha1',
- 'path' => drupal_get_path('module', 'field_collection') . '/views',
- );
- }
- /**
- * Implements hook_features_pipe_COMPONENT_alter() for field objects.
- *
- * This is used with Features v1.0 and v2.0 prior to beta2, newer releases
- * separated the field_base from the field_instance so this won't be used.
- *
- * @see field_collection_features_pipe_field_instance_alter().
- */
- function field_collection_features_pipe_field_alter(&$pipe, $data, $export) {
- // Skip this if Features has been updated to v2.0-beta2 or newer as it will
- // use the separate field_instance integration instead.
- if (!function_exists('field_instance_features_export_options')) {
- // Add the fields of the field collection entity to the pipe.
- foreach ($data as $identifier) {
- if (($field = features_field_load($identifier)) && $field['field_config']['type'] == 'field_collection') {
- $fields = field_info_instances('field_collection_item', $field['field_config']['field_name']);
- foreach ($fields as $name => $field) {
- $pipe['field'][] = "{$field['entity_type']}-{$field['bundle']}-{$field['field_name']}";
- }
- }
- }
- }
- }
- /**
- * Implements hook_features_pipe_COMPONENT_alter() for field_instance objects.
- *
- * This is used with Features v2.0-beta2 and newer.
- */
- function field_collection_features_pipe_field_instance_alter(&$pipe, $data, $export) {
- // Add the fields of the field collection entity to the pipe.
- foreach ($data as $identifier) {
- if (($field = features_field_load($identifier)) && $field['field_config']['type'] == 'field_collection') {
- $fields = field_info_instances('field_collection_item', $field['field_config']['field_name']);
- foreach ($fields as $name => $field) {
- $pipe['field_instance'][] = "{$field['entity_type']}-{$field['bundle']}-{$field['field_name']}";
- }
- }
- }
- }
- /**
- * Callback for generating entity metadata property info for our field instances.
- *
- * @see field_collection_field_info()
- */
- function field_collection_entity_metadata_property_callback(&$info, $entity_type, $field, $instance, $field_type) {
- $property = &$info[$entity_type]['bundles'][$instance['bundle']]['properties'][$field['field_name']];
- // Set the bundle as we know it is the name of the field.
- $property['bundle'] = $field['field_name'];
- $property['getter callback'] = 'field_collection_field_property_get';
- $property['setter callback'] = 'field_collection_field_property_set';
- }
- /**
- * Entity property info setter callback for the host entity property.
- *
- * As the property is of type entity, the value will be passed as a wrapped
- * entity.
- */
- function field_collection_item_set_host_entity($item, $property_name, $wrapper) {
- if (empty($item->is_new)) {
- throw new EntityMetadataWrapperException('The host entity may be set only during creation of a field collection item.');
- }
- if (!isset($wrapper->{$item->field_name})) {
- throw new EntityMetadataWrapperException('The specified entity has no such field collection field.');
- }
- $entity_type = $wrapper->type();
- $field = field_info_field($item->field_name);
- $langcode = field_is_translatable($entity_type, $field) ? field_collection_entity_language($entity_type, $wrapper->value()) : LANGUAGE_NONE;
- $item->setHostEntity($wrapper->type(), $wrapper->value(), $langcode);
- }
- /**
- * Entity property info getter callback for the host entity property.
- */
- function field_collection_item_get_host_entity($item) {
- // As the property is defined as 'entity', we have to return a wrapped entity.
- return entity_metadata_wrapper($item->hostEntityType(), $item->hostEntity());
- }
- /**
- * Entity property info getter callback for the field collection items.
- *
- * Like entity_metadata_field_property_get(), but additionally supports getting
- * not-yet saved collection items from @code $item['entity'] @endcode.
- */
- function field_collection_field_property_get($entity, array $options, $name, $entity_type, $info) {
- $field = field_info_field($name);
- $langcode = field_language($entity_type, $entity, $name, isset($options['language']) ? $options['language']->language : NULL);
- $values = array();
- if (isset($entity->{$name}[$langcode])) {
- foreach ($entity->{$name}[$langcode] as $delta => $data) {
- // Wrappers do not support multiple entity references being revisions or
- // not yet saved entities. In the case of a single reference we can return
- // the entity object though.
- if ($field['cardinality'] == 1) {
- $values[$delta] = field_collection_field_get_entity($data);
- }
- elseif (isset($data['value'])) {
- $values[$delta] = $data['value'];
- }
- }
- }
- // For an empty single-valued field, we have to return NULL.
- return $field['cardinality'] == 1 ? ($values ? reset($values) : NULL) : $values;
- }
- /**
- * Entity property info setter callback for the field collection items.
- *
- * Like entity_metadata_field_property_set(), but additionally supports
- * saving the revision id.
- */
- function field_collection_field_property_set($entity, $name, $value, $langcode, $entity_type) {
- $field = field_info_field($name);
- $columns = array_keys($field['columns']);
- $langcode = entity_metadata_field_get_language($entity_type, $entity, $field, $langcode);
- $values = $field['cardinality'] == 1 ? array($value) : (array) $value;
- $items = array();
- foreach ($values as $delta => $value) {
- if (isset($value)) {
- if ($value instanceof FieldCollectionItemEntity) {
- $items[$delta][$columns[0]] = $value->item_id;
- $items[$delta][$columns[1]] = $value->revision_id;
- }
- elseif (is_array($value) && isset($value['value']) && isset($value['revision_id'])) {
- $items[$delta][$columns[0]] = $value['value'];
- $items[$delta][$columns[1]] = $value['revision_id'];
- }
- else {
- $item = field_collection_item_load($value);
- $items[$delta][$columns[0]] = $item->item_id;
- $items[$delta][$columns[1]] = $item->revision_id;
- }
- }
- }
- $entity->{$name}[$langcode] = $items;
- // Empty the static field language cache, so the field system picks up any
- // possible new languages.
- drupal_static_reset('field_language');
- }
- /**
- * Implements hook_devel_generate().
- */
- function field_collection_devel_generate($object, $field, $instance, $bundle) {
- // Create a new field collection object and add fake data to its fields.
- $field_collection = entity_create('field_collection_item', array('field_name' => $field['field_name']));
- $field_collection->language = $object->language;
- $field_collection->setHostEntity($instance['entity_type'], $object, $object->language, FALSE);
- devel_generate_fields($field_collection, 'field_collection_item', $field['field_name']);
- $field_collection->save(TRUE);
- return array(
- 'value' => $field_collection->item_id,
- 'revision_id' => $field_collection->revision_id,
- );
- }
- /**
- * Determine if field collection items can be translated.
- *
- * @return
- * Boolean indicating whether field collection items can be translated.
- */
- function field_collection_item_is_translatable() {
- return (bool) module_invoke('entity_translation', 'enabled', 'field_collection_item');
- }
- /**
- * Implements hook_entity_translation_delete().
- */
- function field_collection_entity_translation_delete($entity_type, $entity, $langcode) {
- if (field_collection_item_is_translatable()) {
- list(, , $bundle) = entity_extract_ids($entity_type, $entity);
- foreach (field_info_instances($entity_type, $bundle) as $instance) {
- $field_name = $instance['field_name'];
- $field = field_info_field($field_name);
- if ($field['type'] == 'field_collection') {
- $field_langcode = field_is_translatable($entity_type, $field) ? $langcode : LANGUAGE_NONE;
- if (!empty($entity->{$field_name}[$field_langcode])) {
- foreach ($entity->{$field_name}[$field_langcode] as $delta => $item) {
- $field_collection_item = field_collection_field_get_entity($item);
- $handler = entity_translation_get_handler('field_collection_item', $field_collection_item);
- $translations = $handler->getTranslations();
- if (isset($translations->data[$langcode])) {
- $handler->removeTranslation($langcode);
- $field_collection_item->save(TRUE);
- }
- }
- }
- }
- }
- }
- }
- /**
- * Determines if the additional blank items should be displayed or not.
- *
- * @param array $field
- * The field info array.
- *
- * @return bool
- * TRUE if the additional blank items should be hidden, and FALSE if not.
- */
- function field_collection_hide_blank_items($field) {
- return !empty($field['settings']['hide_blank_items']) && $field['cardinality'] == FIELD_CARDINALITY_UNLIMITED;
- }
- /**
- * Implements hook_admin_menu_map().
- */
- function field_collection_admin_menu_map() {
- if (user_access('administer field collections')) {
- $map['admin/structure/field-collections/%field_collection_field_name'] = array(
- 'parent' => 'admin/structure/field-collections',
- 'arguments' => array(
- array('%field_collection_field_name' => array_keys(field_read_fields(array('type' => 'field_collection')))),
- ),
- );
- return $map;
- }
- }
- /**
- * implements hook_entity_translation_insert
- */
- function field_collection_entity_translation_insert($entity_type, $entity, $translation, $values = array()) {
- // Check if some of the values inserted are of a field_collection field
- if (!empty($values)) {
- foreach ($values as $field_name => $value) {
- $field = field_info_field($field_name);
- if ($field['type'] == 'field_collection') {
- // We have found a field collection
- $language = $translation['language'];
- $source_language = $translation['source'];
- if (!empty($value[$language])) {
- $source_items = !empty($entity->{$field_name}[$source_language]) ? field_collection_field_item_to_ids($entity->{$field_name}[$source_language]) : array();
- foreach ($value[$language] as $delta => $field_value) {
- if (!isset($field_value['entity'])) {
- if ($fc_entity = field_collection_field_get_entity($field_value)) {
- // Check if this field collection item belongs to the source language
- if (in_array($fc_entity->item_id, $source_items)) {
- // Clone the field collection item
- $new_fc_entity = clone $fc_entity;
- $new_fc_entity->item_id = NULL;
- $new_fc_entity->revision_id = NULL;
- $new_fc_entity->is_new = TRUE;
- // Set the new entity for saving it later
- $entity->{$field_name}[$language][$delta]['entity'] = $new_fc_entity;
- }
- }
- }
- }
- }
- }
- }
- }
- }
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