nodereference_field($op, &$node, $field, &$items, $teaser, $page)
contributions/cck/modules/nodereference/nodereference.module, line 168
Implementation of hook_field().
<?php
function nodereference_field($op, &$node, $field, &$items, $teaser, $page) {
switch ($op) {
// When preparing a translation, load any translations of existing references.
case 'prepare translation':
$addition = array();
$addition[$field['field_name']] = array();
if (isset($node->translation_source->$field['field_name']) && is_array($node->translation_source->$field['field_name'])) {
foreach ($node->translation_source->$field['field_name'] as $key => $reference) {
$reference_node = node_load($reference['nid']);
// Test if the referenced node type is translatable and, if so,
// load translations if the reference is not for the current language.
// We can assume the translation module is present because it invokes 'prepare translation'.
if (translation_supported_type($reference_node->type) && !empty($reference_node->language) && $reference_node->language != $node->language && $translations = translation_node_get_translations($reference_node->tnid)) {
// If there is a translation for the current language, use it.
$addition[$field['field_name']][] = array(
'nid' => isset($translations[$node->language]) ? $translations[$node->language]->nid : $reference['nid'],
);
}
}
}
return $addition;
break;
case 'validate':
$refs = _nodereference_potential_references($field);
foreach ($items as $delta => $item) {
if (is_array($item)) {
$error_element = isset($item['_error_element']) ? $item['_error_element'] : '';
if (is_array($item) && isset($item['_error_element'])) unset($item['_error_element']);
if (!empty($item['nid'])) {
if (!isset($refs[$item['nid']])) {
form_set_error($error_element, t("%name: this post can't be referenced.", array('%name' => t($field['widget']['label']))));
}
}
}
}
return $items;
}
}
?>