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<?php
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/**
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* @file
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* Internationalization (i18n) module - Field handling
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*
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* For string keys we use:
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* - field:[field_name]:[bundle]:property, when it is an instance property (linked to bundle)
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* - field:[field_name]:#property..., when it is a field property (that may have multiple values)
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*/
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/**
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* Implements hook_menu().
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*/
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function i18n_field_menu() {
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$items = array();
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// Ensure the following is not executed until field_bundles is working and
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// tables are updated. Needed to avoid errors on initial installation.
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if (!module_exists('field_ui') || defined('MAINTENANCE_MODE')) {
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return $items;
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}
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// Create tabs for all possible bundles. From field_ui_menu().
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foreach (entity_get_info() as $entity_type => $entity_info) {
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if ($entity_info['fieldable']) {
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foreach ($entity_info['bundles'] as $bundle_name => $bundle_info) {
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if (isset($bundle_info['admin'])) {
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// Extract path information from the bundle.
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$path = $bundle_info['admin']['path'];
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// Different bundles can appear on the same path (e.g. %node_type and
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// %comment_node_type). To allow field_ui_menu_load() to extract the
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// actual bundle object from the translated menu router path
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// arguments, we need to identify the argument position of the bundle
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// name string ('bundle argument') and pass that position to the menu
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// loader. The position needs to be casted into a string; otherwise it
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// would be replaced with the bundle name string.
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if (isset($bundle_info['admin']['bundle argument'])) {
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$bundle_arg = $bundle_info['admin']['bundle argument'];
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$bundle_pos = (string) $bundle_arg;
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}
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else {
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$bundle_arg = $bundle_name;
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$bundle_pos = '0';
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}
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// This is the position of the %field_ui_menu placeholder in the
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// items below.
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$field_position = count(explode('/', $path)) + 1;
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// Extract access information, providing defaults.
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$access = array_intersect_key($bundle_info['admin'], drupal_map_assoc(array('access callback', 'access arguments')));
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$access += array(
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'access callback' => 'user_access',
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'access arguments' => array('administer site configuration'),
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);
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$items["$path/fields/%field_ui_menu/translate"] = array(
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'load arguments' => array($entity_type, $bundle_arg, $bundle_pos, '%map'),
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'title' => 'Translate',
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'page callback' => 'i18n_field_page_translate',
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'page arguments' => array($field_position),
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'file' => 'i18n_field.pages.inc',
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'type' => MENU_LOCAL_TASK,
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) + $access;
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$items["$path/fields/%field_ui_menu/translate/%i18n_language"] = array(
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'load arguments' => array($entity_type, $bundle_arg, $bundle_pos, '%map'),
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'title' => 'Instance',
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'page callback' => 'i18n_field_page_translate',
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'page arguments' => array($field_position, $field_position + 2),
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'file' => 'i18n_field.pages.inc',
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'type' => MENU_CALLBACK,
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) + $access;
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}
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}
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}
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}
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return $items;
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}
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/**
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* Implements hook_hook_info().
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*/
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function i18n_field_hook_info() {
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$hooks['i18n_field_info'] = array(
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'group' => 'i18n',
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);
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return $hooks;
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}
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/**
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* Implements hook_field_attach_form().
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*
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* After the form fields are built. Translate title and description for fields with multiple values.
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*/
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function i18n_field_field_attach_form($entity_type, $entity, &$form, &$form_state, $langcode) {
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// Determine the list of instances to iterate on.
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list(, , $bundle) = entity_extract_ids($entity_type, $entity);
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$instances = field_info_instances($entity_type, $bundle);
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foreach ($instances as $field_name => $instance) {
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if (isset($form[$field_name])) {
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$langcode = $form[$field_name]['#language'];
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$field = &$form[$field_name];
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// Note: cardinality for unlimited fields is -1
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if (isset($field[$langcode]['#cardinality']) && $field[$langcode]['#cardinality'] != 1) {
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$translated = i18n_string_object_translate('field_instance', $instance);
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if (!empty($field[$langcode]['#title'])) {
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$field[$langcode]['#title'] = $translated['label'];
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}
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if (!empty($field[$langcode]['#description'])) {
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$field[$langcode]['#description'] = $translated['description'];
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}
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}
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}
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}
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}
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/**
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* Implements hook_field_formatter_info().
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*/
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function i18n_field_field_formatter_info() {
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$types = array();
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foreach (i18n_field_type_info() as $type => $info) {
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if (!empty($info['translate_options'])) {
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$types[] = $type;
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}
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}
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return array(
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'i18n_list_default' => array(
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'label' => t('Default translated'),
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'field types' => $types,
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),
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);
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}
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/**
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* Implements hook_field_formatter_view().
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*/
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function i18n_field_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
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$element = array();
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switch ($display['type']) {
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case 'i18n_list_default':
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if (($translate = i18n_field_type_info($field['type'], 'translate_options'))) {
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$allowed_values = $translate($field);
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}
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else {
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// Defaults to list_default behavior
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$allowed_values = list_allowed_values($field);
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}
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foreach ($items as $delta => $item) {
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if (isset($allowed_values[$item['value']])) {
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$output = field_filter_xss($allowed_values[$item['value']]);
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}
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else {
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// If no match was found in allowed values, fall back to the key.
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$output = field_filter_xss($item['value']);
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}
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$element[$delta] = array('#markup' => $output);
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}
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break;
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}
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return $element;
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}
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/**
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* Implements hook_field_widget_form_alter().
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*
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* Translate:
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* - Title (label)
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* - Description (help)
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* - Default value
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* - List options
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*/
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function i18n_field_field_widget_form_alter(&$element, &$form_state, $context) {
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global $language;
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// Don't translate if the widget is being shown on the field edit form.
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if (isset($form_state['build_info']['form_id']) && $form_state['build_info']['form_id'] == 'field_ui_field_edit_form') {
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return;
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}
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// Skip if we are missing any of the parameters
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if (empty($context['field']) || empty($context['instance']) || empty($context['langcode'])) {
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return;
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}
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$field = $context['field'];
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$instance = $context['instance'];
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$langcode = $context['langcode'];
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// Get the element to alter. Account for inconsistencies in how the element
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// is built for different field types.
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if (isset($element[0]) && count($element) == 1) {
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// Single-value file fields and image fields.
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$alter_element = &$element[0];
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}
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elseif ($field['type'] == 'url' && $field['module'] == 'url' && $field['cardinality'] == 1) {
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$alter_element = &$element;
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}
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elseif (isset($element['value'])) {
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// Number fields. Single-value text fields.
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$alter_element = &$element['value'];
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}
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elseif ($field['type'] == 'entityreference' && isset($element['target_id'])) {
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// Entityreference fields using the entityreference_autocomplete widget.
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$alter_element = &$element['target_id'];
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}
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elseif ($field['type'] == 'node_reference' && isset($element['nid'])) {
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// The node_reference fields using the entityreference_autocomplete widget.
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$alter_element = &$element['nid'];
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}
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else {
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// All other fields.
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$alter_element = &$element;
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}
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// If a subelement has the same title as the parent, translate it instead.
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// Allows fields such as email and commerce_price to be translated.
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foreach (element_get_visible_children($element) as $key) {
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$single_value = ($field['cardinality'] == 1);
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$has_title = (isset($element['#title']) && isset($element[$key]['#title']));
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if ($single_value && $has_title && $element[$key]['#title'] == $element['#title']) {
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$alter_element = &$element[$key];
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break;
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}
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}
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// The field language may affect some variables (default) but not others (description will be in current page language)
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$i18n_langcode = empty($alter_element['#language']) || $alter_element['#language'] == LANGUAGE_NONE ? $language->language : $alter_element['#language'];
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// Translate instance to current page language and set to form_state
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// so it will be used for validation messages later.
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$instance_current = i18n_string_object_translate('field_instance', $instance);
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if (isset($form_state['field'][$instance['field_name']][$langcode]['instance'])) {
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$form_state['field'][$instance['field_name']][$langcode]['instance'] = $instance_current;
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}
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// Translate field title if set and it is the default one.
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if (!empty($instance_current['label']) && $instance_current['label'] != $instance['label']) {
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if (!empty($alter_element['#title']) && $alter_element['#title'] == check_plain($instance['label'])) {
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$alter_element['#title'] = check_plain($instance_current['label']);
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}
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}
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// Translate field description if set and it is the default one.
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if (!empty($instance_current['description']) && $instance_current['description'] != $instance['description']) {
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if (!empty($alter_element['#description'])) {
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// Allow single-value file fields and image fields to have their
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249
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// descriptions translated. file_field_widget_form() passes the
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250
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// description through theme('file_upload_help'), so i18n_field
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251
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// must do the same.
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$filefield = in_array($field['type'], array('file', 'image'));
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$single_value = ($field['cardinality'] == 1);
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$no_default = empty($alter_element['#default_value']['fid']);
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if ($filefield && $single_value && $no_default) {
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$help_variables = array(
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'description' => field_filter_xss($instance['description']),
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'upload_validators' => isset($alter_element['#upload_validators']) ? $alter_element['#upload_validators'] : array(),
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);
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260
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$original_description = theme('file_upload_help', $help_variables);
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if ($alter_element['#description'] == $original_description) {
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262
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$help_variables = array(
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'description' => field_filter_xss($instance_current['description']),
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'upload_validators' => isset($alter_element['#upload_validators']) ? $alter_element['#upload_validators'] : array(),
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);
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$alter_element['#description'] = theme('file_upload_help', $help_variables);
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}
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268
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}
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269
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elseif ($alter_element['#description'] == field_filter_xss($instance['description'])) {
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270
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$alter_element['#description'] = field_filter_xss($instance_current['description']);
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}
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272
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}
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273
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}
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274
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275
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// Translate list options.
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276
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$has_options = (!empty($alter_element['#options']) || $field['type'] == 'list_boolean');
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277
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$has_allowed_values = !empty($field['settings']['allowed_values']);
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278
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$translate = i18n_field_type_info($field['type'], 'translate_options');
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279
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if ($has_options && $has_allowed_values && $translate) {
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280
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$alter_element['#options'] = $translate($field, $i18n_langcode);
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281
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if (isset($alter_element['#properties']) && !empty($alter_element['#properties']['empty_option'])) {
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282
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$label = theme('options_none', array('instance' => $instance, 'option' => $alter_element['#properties']['empty_option']));
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283
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$alter_element['#options'] = array('_none' => $label) + $alter_element['#options'];
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284
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}
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285
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// Translate list_boolean fields using the checkboxes widget.
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286
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if (!empty($alter_element['#title']) && $field['type'] == 'list_boolean' && !empty($alter_element['#on_value'])) {
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287
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$on_value = $alter_element['#on_value'];
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288
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$alter_element['#options'];
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289
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$alter_element['#title'] = $alter_element['#options'][$on_value];
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290
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// For using label instead of "On value".
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291
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if ($instance['widget']['settings']['display_label']) {
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292
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$alter_element['#title'] = $instance_current['label'];
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293
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}
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294
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}
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295
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}
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296
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297
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// Check for more parameters, skip this part if missing.
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298
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if (!isset($context['delta']) || !isset($context['items'])) {
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299
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return;
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300
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}
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301
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$delta = $context['delta'];
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302
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$items = $context['items'];
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303
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304
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// Translate default value.
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305
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$has_default_value = (isset($alter_element['#default_value']) && !empty($instance['default_value'][$delta]['value']));
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306
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$storage_has_value = !empty($items[$delta]['value']);
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307
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$translate = i18n_field_type_info($field['type'], 'translate_default');
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308
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if ($has_default_value && $storage_has_value && $translate) {
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309
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// Compare the default value with the value currently in storage.
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310
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if ($instance['default_value'][$delta]['value'] === $items[$delta]['value']) {
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311
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$alter_element['#default_value'] = $translate($instance, $items[$delta]['value'], $i18n_langcode);
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312
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}
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313
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}
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314
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}
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315
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316
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/**
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317
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* Implements hook_field_attach_view_alter().
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318
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*/
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319
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function i18n_field_field_attach_view_alter(&$output, $context) {
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320
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foreach (element_children($output) as $field_name) {
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321
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$element = &$output[$field_name];
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322
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if (!empty($element['#entity_type']) && !empty($element['#field_name']) && !empty($element['#bundle'])) {
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323
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$instance = field_info_instance($element['#entity_type'], $element['#field_name'], $element['#bundle']);
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324
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325
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// Translate field title if set
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326
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if (!empty($instance['label'])) {
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327
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$element['#title'] = i18n_field_translate_property($instance, 'label');
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328
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}
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329
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330
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// Translate field description if set
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331
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if (!empty($instance['description'])) {
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332
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$element['#description'] = i18n_field_translate_property($instance, 'description');
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333
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}
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334
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}
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335
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}
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336
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}
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337
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338
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/**
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339
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* Implements hook_field_create_field().
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340
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*/
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341
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function i18n_field_field_create_field($field) {
|
|
342
|
i18n_field_field_update_strings($field);
|
|
343
|
}
|
|
344
|
|
|
345
|
/**
|
|
346
|
* Implements hook_field_create_instance().
|
|
347
|
*/
|
|
348
|
function i18n_field_field_create_instance($instance) {
|
|
349
|
i18n_field_instance_update_strings($instance);
|
|
350
|
}
|
|
351
|
|
|
352
|
/**
|
|
353
|
* Implements hook_field_delete_instance().
|
|
354
|
*/
|
|
355
|
function i18n_field_field_delete_instance($instance) {
|
|
356
|
i18n_string_object_remove('field_instance', $instance);
|
|
357
|
}
|
|
358
|
|
|
359
|
/**
|
|
360
|
* Implements hook_field_update_instance().
|
|
361
|
*/
|
|
362
|
function i18n_field_field_update_instance($instance, $prior_instance) {
|
|
363
|
i18n_field_instance_update_strings($instance);
|
|
364
|
}
|
|
365
|
|
|
366
|
/**
|
|
367
|
* Implements hook_field_update_field().
|
|
368
|
*/
|
|
369
|
function i18n_field_field_update_field($field) {
|
|
370
|
i18n_field_field_update_strings($field);
|
|
371
|
}
|
|
372
|
|
|
373
|
/**
|
|
374
|
* Update field strings
|
|
375
|
*/
|
|
376
|
function i18n_field_field_update_strings($field) {
|
|
377
|
i18n_string_object_update('field', $field);
|
|
378
|
}
|
|
379
|
|
|
380
|
/**
|
|
381
|
* Update field instance strings
|
|
382
|
*/
|
|
383
|
function i18n_field_instance_update_strings($instance) {
|
|
384
|
i18n_string_object_update('field_instance', $instance);
|
|
385
|
}
|
|
386
|
|
|
387
|
/**
|
|
388
|
* Returns the array of translated allowed values for a list field.
|
|
389
|
*
|
|
390
|
* The strings are not safe for output. Keys and values of the array should be
|
|
391
|
* sanitized through field_filter_xss() before being displayed.
|
|
392
|
*
|
|
393
|
* @param $field
|
|
394
|
* The field definition.
|
|
395
|
*
|
|
396
|
* @return
|
|
397
|
* The array of allowed values. Keys of the array are the raw stored values
|
|
398
|
* (number or text), values of the array are the display labels.
|
|
399
|
*/
|
|
400
|
function i18n_field_translate_allowed_values($field, $langcode = NULL) {
|
|
401
|
$allowed_values = list_allowed_values($field);
|
|
402
|
if (!$allowed_values) {
|
|
403
|
return array();
|
|
404
|
}
|
|
405
|
// Do not attempt to translate options from a callback.
|
|
406
|
$function = $field['settings']['allowed_values_function'];
|
|
407
|
if (!empty($function) && function_exists($function)) {
|
|
408
|
return $allowed_values;
|
|
409
|
}
|
|
410
|
return i18n_string_translate(array('field', $field['field_name'], '#allowed_values'), $allowed_values, array('langcode' => $langcode, 'sanitize' => FALSE));
|
|
411
|
}
|
|
412
|
|
|
413
|
/**
|
|
414
|
* Translate field default.
|
|
415
|
*/
|
|
416
|
function i18n_field_translate_default($instance, $value, $langcode = NULL) {
|
|
417
|
// The default value does not need sanitizing in a text_textfield widget.
|
|
418
|
$sanitize = !($instance['widget']['type'] == 'text_textfield' && $instance['widget']['module'] == 'text');
|
|
419
|
return i18n_string_translate(array('field', $instance['field_name'], $instance['bundle'], 'default_value'), $value, array('langcode' => $langcode, 'sanitize' => $sanitize));
|
|
420
|
}
|
|
421
|
|
|
422
|
/**
|
|
423
|
* Translate field property
|
|
424
|
*/
|
|
425
|
function i18n_field_translate_property($instance, $property, $langcode = NULL) {
|
|
426
|
// For performance reasons, we translate the whole instance once, which is cached.
|
|
427
|
$instance = i18n_string_object_translate('field_instance', $instance, array('langcode' => $langcode));
|
|
428
|
return $instance[$property];
|
|
429
|
}
|
|
430
|
|
|
431
|
/**
|
|
432
|
* Get i18n information for translating fields.
|
|
433
|
*
|
|
434
|
* @param $type
|
|
435
|
* Optional field type.
|
|
436
|
* @param $property
|
|
437
|
* Optional property to get from field type.
|
|
438
|
*
|
|
439
|
* @return
|
|
440
|
* - The property for the field if $type and $property set.
|
|
441
|
* - Array of properties for the field type if only $type is set.
|
|
442
|
* - Array of translation information for all field types.
|
|
443
|
*/
|
|
444
|
function i18n_field_type_info($type = NULL, $property = NULL) {
|
|
445
|
$info = &drupal_static(__FUNCTION__);
|
|
446
|
if (!isset($info)) {
|
|
447
|
$info = module_invoke_all('i18n_field_info');
|
|
448
|
drupal_alter('i18n_field_info', $info);
|
|
449
|
}
|
|
450
|
if ($property) {
|
|
451
|
return isset($info[$type]) && isset($info[$type][$property]) ? $info[$type][$property] : NULL;
|
|
452
|
}
|
|
453
|
elseif ($type) {
|
|
454
|
return isset($info[$type]) ? $info[$type] : array();
|
|
455
|
}
|
|
456
|
else {
|
|
457
|
return $info;
|
|
458
|
}
|
|
459
|
}
|
|
460
|
|
|
461
|
/**
|
|
462
|
* Implements hook_field_info_alter().
|
|
463
|
*/
|
|
464
|
function i18n_field_field_info_alter(&$field_info) {
|
|
465
|
foreach(array_keys($field_info) as $type) {
|
|
466
|
$field_info[$type]['property_callbacks'][] = 'i18n_field_entity_property_callback';
|
|
467
|
}
|
|
468
|
}
|
|
469
|
|
|
470
|
/**
|
|
471
|
* Prime the cache to avoid single db queries for entity fields / properties.
|
|
472
|
*
|
|
473
|
* This is mainly uses when large operations are occuring like a flush of the
|
|
474
|
* entity_property_infos().
|
|
475
|
*/
|
|
476
|
function i18n_field_prime_caches() {
|
|
477
|
global $language;
|
|
478
|
static $cache_primed;
|
|
479
|
|
|
480
|
// Fill the cache. This should avoid single db queries when filling the
|
|
481
|
// properties.
|
|
482
|
if (empty($cache_primed)) {
|
|
483
|
$cache_primed = TRUE;
|
|
484
|
$text_group = i18n_string_textgroup('field');
|
|
485
|
// Load all strings at once to avoid callbacks for each individual string.
|
|
486
|
$text_group->load_strings();
|
|
487
|
$text_group->multiple_translation_search(array('type' => '*', 'objectid' => '*', 'property' => '*'), $language->language);
|
|
488
|
}
|
|
489
|
}
|
|
490
|
|
|
491
|
/**
|
|
492
|
* Callback to translate entity property info for a fields.
|
|
493
|
*
|
|
494
|
* @see entity_metadata_field_entity_property_info()
|
|
495
|
* @see entity_metadata_field_default_property_callback()
|
|
496
|
* @see i18n_field_i18n_object_info_alter()
|
|
497
|
* @see hook_module_implements_alter()
|
|
498
|
*/
|
|
499
|
function i18n_field_entity_property_callback(&$info, $entity_type, $field, $instance, $field_type) {
|
|
500
|
global $language;
|
|
501
|
|
|
502
|
// This could create a endless recursion if it's called during rebuilding the
|
|
503
|
// cache for i18n_object_info(). So if the cache of i18n_object_info isn't
|
|
504
|
// available yet we assume the worst case, leave the info alone but trigger a
|
|
505
|
// rebuild of the property when hook_i18n_object_info_alter is invoked. At
|
|
506
|
// that point the info is available and we can rely on it.
|
|
507
|
if (!$info = &drupal_static('i18n_object_info')) {
|
|
508
|
$i18n_field_entity_property_callback_fallback = &drupal_static(__FUNCTION__);
|
|
509
|
$i18n_field_entity_property_callback_fallback = TRUE;
|
|
510
|
return;
|
|
511
|
}
|
|
512
|
|
|
513
|
i18n_field_prime_caches();
|
|
514
|
$name = $field['field_name'];
|
|
515
|
$property = &$info[$entity_type]['bundles'][$instance['bundle']]['properties'][$name];
|
|
516
|
$property['label'] = i18n_field_translate_property($instance, 'label', $language->language);
|
|
517
|
}
|
|
518
|
|
|
519
|
/**
|
|
520
|
* Implements hook_i18n_object_info_alter().
|
|
521
|
*/
|
|
522
|
function i18n_field_i18n_object_info_alter(&$info) {
|
|
523
|
if (drupal_static('i18n_field_entity_property_callback')) {
|
|
524
|
if ($info = drupal_static('i18n_object_info')) {
|
|
525
|
// Clean static and permanent cache of the data and then re-run the property
|
|
526
|
// building.
|
|
527
|
// Use a lock to avoid stampeding.
|
|
528
|
$lock_name = 'i18n_field_entity_property_callback_fallback:' . $GLOBALS['language']->language;
|
|
529
|
// See if another request is already doing this. If so we bail out here as
|
|
530
|
// we won't help with anything at the moment.
|
|
531
|
if (!lock_may_be_available($lock_name)) {
|
|
532
|
return;
|
|
533
|
}
|
|
534
|
if (lock_acquire($lock_name)) {
|
|
535
|
i18n_field_prime_caches();
|
|
536
|
// Inject translated properties.
|
|
537
|
$entity_property_info = entity_get_property_info();
|
|
538
|
foreach ($entity_property_info as $entity_type => $properties) {
|
|
539
|
if (isset($properties['bundles'])) {
|
|
540
|
foreach ($properties['bundles'] as $bundle => $bundle_properties) {
|
|
541
|
if ($bundle_properties['properties']) {
|
|
542
|
foreach ($bundle_properties['properties'] as $bundle_property => $bundle_property_info) {
|
|
543
|
if ($instance = field_info_instance($entity_type, $bundle_property, $bundle)) {
|
|
544
|
$property = &$entity_property_info[$entity_type]['bundles'][$instance['bundle']]['properties'][$bundle_property];
|
|
545
|
$property['label'] = i18n_field_translate_property($instance, 'label', $GLOBALS['language']->language);
|
|
546
|
}
|
|
547
|
}
|
|
548
|
}
|
|
549
|
}
|
|
550
|
}
|
|
551
|
}
|
|
552
|
// Inject into static cache.
|
|
553
|
$entity_get_property_info = &drupal_static('entity_get_property_info', array());
|
|
554
|
$entity_get_property_info = $entity_property_info;
|
|
555
|
// Write permanent cache.
|
|
556
|
cache_set('entity_property_info:' . $GLOBALS['language']->language, $entity_property_info);
|
|
557
|
lock_release($lock_name);
|
|
558
|
}
|
|
559
|
}
|
|
560
|
else {
|
|
561
|
watchdog('i18n_field', 'Unable to run fall-back handling for entity property translation due missing "i18n_object_info" cache', array(), WATCHDOG_WARNING);
|
|
562
|
}
|
|
563
|
}
|
|
564
|
}
|
|
565
|
|
|
566
|
/**
|
|
567
|
* Implements hook_module_implements_alter().
|
|
568
|
*/
|
|
569
|
function i18n_field_module_implements_alter(&$implementations, $hook) {
|
|
570
|
if ($hook == 'i18n_object_info_alter') {
|
|
571
|
// Move our hook implementation to the bottom.
|
|
572
|
$group = $implementations['i18n_field'];
|
|
573
|
unset($implementations['i18n_field']);
|
|
574
|
$implementations['i18n_field'] = $group;
|
|
575
|
}
|
|
576
|
}
|
