first import

sites/all/modules/i18n/i18n_sync/i18n_sync.node.inc

@@ -0,0 +1,170 @@
+<?php
+
+/**
+ * @file
+ * Internationalization (i18n) package. Synchronization of translations
+ *
+ * Node synchronization.
+ */
+
+/**
+ * Synchronizes fields for node translation.
+ *
+ * There's some specific handling for known fields like:
+ * - files, for file attachments.
+ * - iid (CCK node attachments, translations for them will be handled too).
+ *
+ * All the rest of the fields will be just copied over.
+ * The 'revision' field will have the special effect of creating a revision too for the translation.
+ *
+ * @param $node
+ *   Source node being edited.
+ * @param $translations
+ *   Node translations to synchronize, just needs nid property.
+ * @param $fields
+ *   List of fields to synchronize.
+ * @param $op
+ *   Node operation (insert|update).
+ */
+function i18n_sync_node_translation($node, $translations, $field_names, $op) {
+  $count = 0;
+  // Disable language selection and synchronization temporarily, enable it again later
+  $i18n_select = i18n_select(FALSE);
+  i18n_sync(FALSE);
+  foreach ($translations as $translation) {
+    // If translation is the same node, we cannot synchronize with itself
+    if ($node->nid == $translation->nid) {
+      continue;
+    }
+    // Load full node, we need all data here.
+    $translation = node_load($translation->nid, NULL, TRUE);
+    $i18n_options = i18n_sync_node_options($node->type);
+    // Invoke callback for each field, the default is just copy over
+    foreach ($field_names as $field) {
+      if (!empty($i18n_options[$field]['field_name'])) {
+        i18n_sync_field_translation_sync('node', $node->type, $translation, $translation->language, $node, $node->language, $i18n_options[$field]['field_name']);
+      }
+      elseif (isset($node->$field)) {
+        // Standard node field, just copy over.
+        $translation->$field = $node->$field;
+      }
+    }
+    // Give a chance to other modules for additional sync
+    module_invoke_all('i18n_sync_translation', 'node', $translation, $translation->language, $node, $node->language, $field_names);
+    node_save($translation);
+    $count++;
+  }
+  i18n_sync(TRUE);
+  i18n_select($i18n_select);
+  drupal_set_message(format_plural($count, 'One node translation has been synchronized.', 'All @count node translations have been synchronized.'));
+}
+
+/**
+ * Node attachments (CCK) that may have translation.
+ */
+function i18n_sync_node_translation_attached_node(&$node, &$translation, $field) {
+  if ($attached = node_load($node->$field)) {
+    $translation->$field = i18n_sync_node_translation_reference_field($attached, $node->$field, $translation->language);
+  }
+}
+
+/**
+ * Translating a nodereference field (cck).
+ */
+function i18n_sync_node_translation_nodereference_field(&$node, &$translation, $field) {
+  $translated_references = array();
+  foreach ($node->$field as $reference) {
+    if ($reference_node = node_load($reference['nid'])) {
+      $translated_references[] = array(
+        'nid' => i18n_sync_node_translation_reference_field($reference_node, $reference['nid'], $translation->language)
+      );
+    }
+  }
+  $translation->$field = $translated_references;
+}
+
+/**
+ * Helper function to which translates reference field. We try to use translations for reference, otherwise fallback.
+ * Example:
+ *   English A references English B and English C.
+ *   English A and B are translated to German A and B, but English C is not.
+ *   The syncronization from English A to German A would it German B and English C.
+ */
+function i18n_sync_node_translation_reference_field(&$reference_node, $default_value, $langcode) {
+  if (isset($reference_node->tnid) && translation_supported_type($reference_node->type)) {
+    // This content type has translations, find the one.
+    if (($reference_trans = translation_node_get_translations($reference_node->tnid)) && isset($reference_trans[$langcode])) {
+      return $reference_trans[$langcode]->nid;
+    }
+    else {
+      // No requested language found, just copy the field.
+      return $default_value;
+    }
+  }
+  else {
+    // Content type without language, just copy the field.
+    return $default_value;
+  }
+}
+
+/**
+ * Synchronize configurable field
+ *
+ * @param $field_info
+ *   Field API field information.
+ */
+function i18n_sync_node_translation_default_field($node, $translation, $field, $field_info) {
+  switch ($field_info['field']['type']) {
+    case 'file':
+    case 'image':
+      i18n_sync_node_translation_file_field($node, $translation, $field);
+      break;
+    default:
+      // For fields that don't need special handling, just copy it over if defined.
+      // Field languages are completely unconsistent, for not to say broken
+      // both in Drupal core and entity translation. Let's hope this works.
+      $source_lang = field_language('node', $node, $field);
+      $translation_lang = field_language('node', $translation, $field);
+      if (isset($node->{$field}[$source_lang])) {
+        $translation->{$field}[$translation_lang] = $node->{$field}[$source_lang];
+      }
+      break;
+  }
+}
+
+/**
+ * Sync a file or image field:
+ * - file-id's (fid) are synced
+ * - order of fid's is synced
+ * - description, alt, title is kept if already existing, copied otherwise
+ *
+ * @param object $node the node whose changes are to be synced
+ * @param object $translation a node to which the changes need to be synced
+ * @param string $field field name
+ */
+function i18n_sync_node_translation_file_field($node, $translation, $field) {
+  if (isset($node->{$field}[$node->language])) {
+    // Build a copy of the existing files in the translation node
+    // indexed by fid for easy retrieval in the copy loop below
+    $existing_files = array();
+    if (isset($translation->{$field}[$translation->language])) {
+      foreach ($translation->{$field}[$translation->language] as $delta => $file) {
+        $existing_files[$file['fid']] = $file;
+      }
+    }
+
+    // Start creating the translated copy
+    $translated_files = $node->{$field}[$node->language];
+    foreach ($translated_files as $delta => &$file) {
+      // keep alt, title, description if they already exist
+      if (array_key_exists($file['fid'], $existing_files)) {
+        foreach (array('title', 'description', 'alt') as $property) {
+          if (!empty($existing_files[$file['fid']][$property])) {
+            $file[$property] = $existing_files[$file['fid']][$property];
+          }
+        }
+      }
+    }
+    $translation->{$field}[$translation->language] = $translated_files;
+  }
+}