您可以在Drupal.org在Entity API Tutorial记录实体API。
在那里你可以找到一些有用的例子,尤其是检查Entity metadata wrappers页面。
这里是根据你的变量例如:
$node = node_load(1);
$field_collection_item = entity_create('field_collection_item', array('field_name' => 'field_book_text')); // field_book_text is field collection
$field_collection_item->setHostEntity('node', $node);
$cwrapper = entity_metadata_wrapper('field_collection_item', $field_collection_item);
// Adding fields to field_collection
$cwrapper->field_foo_text->set("value");
$cwrapper->field_foo_multitext->set(array("value1", "value2"));
$cwrapper.save();
下面是一个使用领域集合从上面的文档页面又如:
<?php
// Populate the fields.
$ewrapper = entity_metadata_wrapper('node', $node);
$ewrapper->field_lead_contact_name->set($contact_name);
$ewrapper->field_lead_contact_phone->set($contact_phone);
$ewrapper->field_lead_contact_email->set($contact_email);
// Create the collection entity and set it's "host".
$collection = entity_create('field_collection_item', array('field_name' => 'field_facilities_requested'));
$collection->setHostEntity('node', $node);
// Now define the collection parameters.
$cwrapper = entity_metadata_wrapper('field_collection_item', $collection);
$cwrapper->field_facility->set(intval($offset));
$cwrapper->save();
// Save.
$ewrapper->save();
?>
这里是我的更高级的例子为如果给定实体从field_rs_property_features
加载分类术语引用,则对于具有父项的每个次级术语,将其术语名称和其父项名称添加到field_feed_characteristics_value
将它们组合成标题(父母)和值(孩子)。没有看到代码可能会更难解释。所以这里是:
/**
* Function to set taxonomy term names based on term references for given entity.
*/
function MYMODULE_refresh_property_characteristics(&$entity, $save = FALSE) {
try {
$w_node = entity_metadata_wrapper('node', $entity);
$collections = array();
foreach ($w_node->field_rs_property_features->getIterator() as $delta => $term_wrapper) {
if ($term_wrapper->parent->count() > 0) {
$name = $term_wrapper->name->value();
$pname = $term_wrapper->parent->get(0)->name->value();
if (array_key_exists($pname, $collections)) {
$collections[$pname]->field_feed_characteristics_value[] = $name;
} else {
// Create the collection entity, set field values and set it's "host".
$field_collection_item = entity_create('field_collection_item', array('field_name' => 'field_feed_characteristics'));
$field_collection_item->setHostEntity('node', $w_node->value());
$collections[$pname] = entity_metadata_wrapper('field_collection_item', $field_collection_item);
$collections[$pname]->field_feed_characteristics_title = $pname;
$collections[$pname]->field_feed_characteristics_value = array($name);
}
}
}
if ($save) {
$w_node->save();
}
} catch (Exception $e) {
drupal_set_message(t('Error setting values for field collection: @title, message: @error.',
array('@title' => $w_node->title->value(), '@error' => $e->getMessage())), 'error');
watchdog_exception('MYMODULE', $e);
return FALSE;
}
return TRUE;
}
感谢这个非常有用的例子。我确实注意到,尽管在最后调用或不调用node_save时都保存了新的值。我对此没有解释。 – Countzero 2013-02-16 06:01:54
这对我来说非常合适,不过node_save()是不需要的,除非我失去了一些东西? – 2013-03-17 21:44:30