78 lines
2.8 KiB
PHP
78 lines
2.8 KiB
PHP
<?php
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// $Id$
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/**
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* @file
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* Field API multilingual handling.
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*/
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/**
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* Form submit handler for node_form().
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*
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* Update the field language according to the node language, changing the
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* previous language if necessary.
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*/
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function locale_field_node_form_update_field_language($form, &$form_state, $reset_previous = TRUE) {
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$node = (object) $form_state['values'];
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$available_languages = field_multilingual_content_languages();
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// @todo: Unify language neutral language codes.
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$selected_language = empty($node->language) ? LANGUAGE_NONE : $node->language;
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list(, , $bundle) = entity_extract_ids('node', $node);
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foreach (field_info_instances('node', $bundle) as $instance) {
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$field_name = $instance['field_name'];
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$field = field_info_field($field_name);
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$previous_language = $form[$field_name]['#language'];
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// Handle a possible language change: previous language values are deleted,
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// new ones are inserted.
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if ($field['translatable'] && $previous_language != $selected_language) {
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$form_state['values'][$field_name][$selected_language] = $node->{$field_name}[$previous_language];
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if ($reset_previous) {
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$form_state['values'][$field_name][$previous_language] = array();
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}
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}
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}
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}
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/**
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* Apply fallback rules to the given object.
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*
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* Parameters are the same of hook_field_attach_view().
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*/
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function locale_field_fallback_view(&$output, $context) {
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// Lazily init fallback values and candidates to avoid unnecessary calls.
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$fallback_values = array();
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$fallback_candidates = NULL;
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list(, , $bundle) = entity_extract_ids($context['obj_type'], $context['object']);
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foreach (field_info_instances($context['obj_type'], $bundle) as $instance) {
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$field_name = $instance['field_name'];
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$field = field_info_field($field_name);
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// If the items array is empty then we have a missing field translation.
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// @todo: Verify this assumption.
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if (isset($output[$field_name]) && count(element_children($output[$field_name])) == 0) {
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if (!isset($fallback_candidates)) {
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require_once DRUPAL_ROOT . '/includes/language.inc';
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$fallback_candidates = language_fallback_get_candidates();
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}
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foreach ($fallback_candidates as $langcode) {
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// Again if we have a non-empty array we assume the field translation is
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// valid.
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if (!empty($context['object']->{$field_name}[$langcode])) {
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// Cache fallback values per language as fields might have different
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// fallback values.
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if (!isset($fallback_values[$langcode])) {
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$fallback_values[$langcode] = field_attach_view($context['obj_type'], $context['object'], $context['view_mode'], $langcode);
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}
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// We are done, skip to the next field.
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$output[$field_name] = $fallback_values[$langcode][$field_name];
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break;
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}
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}
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}
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}
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}
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