В Drupal 7 я могу легко переключать тип содержимого узла с помощью Node convert . Однако Node Convert не был портирован на Drupal 8, и, похоже, не слишком много энтузиазма по поводу порта.
Если у меня есть два типа контента с одинаковыми полями, как я могу преобразовать узел из типа контента в другой, в Drupal 8? Какой код я должен использовать для Drupal 8, что эквивалентно следующему коду Drupal 7, используемому модулем Node convert ? (См. node_convert_node_convert()
В node_convert.util.inc .)
// $nid, $destination_node_type, $source_fields, $destination_fields,
// $no_fields_flag, and $hook_options are the parameters passed to the function.
$node = node_load($nid);
if ($node == FALSE) {
return FALSE;
}
// Change the node type in the DB
db_update('node')->fields(array('type' => $destination_node_type))->condition('nid', $nid)->execute();
// If there are fields that can be converted
if ($no_fields_flag == FALSE) {
// Conversion process for each field
$re_save_body_field = FALSE;
// Use node revisions to extract all field revision in node_convert_field_convert
$node_revisions = node_revision_list($node);
foreach ($source_fields as $key => $field) {
$replaced_body = node_convert_field_convert($node, $field, $destination_fields[$key], $destination_node_type, $node_revisions);
if ($replaced_body == REPLACE_BODY) {
$re_save_body_field = TRUE;
}
}
// If something was appended to the body, or replaced the body, we update body field.
if ($re_save_body_field == TRUE) {
$field_body = field_info_fields();
$field_body = $field_body['body'];
$field_ids = array($field_body['id'] => $field_body['id']);
module_invoke($field_body['storage']['module'], 'field_storage_write', 'node', $node, FIELD_STORAGE_UPDATE, $field_ids);
}
}
// Omissis.
// Clear the node cache, so we have the latest information when saving the
// node.
$controller = entity_get_controller('node');
/* @var $controller DrupalEntityControllerInterface */
$controller->resetCache(array($node->nid));
cache_clear_all('field:node:' . $node->nid, 'cache_field');
node_convert_field_convert()
содержит следующий код
// &$node, $source_field, $destination_field, $destination_node_type,
// and $node_revisions are the parameters passed to node_convert_field_convert().
$field_info_source = field_info_fields(); // Get source field information
$field_info_source = $field_info_source[$source_field];
$db_info_source = $field_info_source['storage']; // Get DB specific source field information
if ($destination_field == 'discard') {
// Delete node info in the separate field table
node_convert_invoke_field_storage_delete($field_info_source, $db_info_source, $node);
return NULL;
}
$field_info_destination = array();
$db_info_destination = array();
if (!in_array($destination_field, array('discard', APPEND_TO_BODY, REPLACE_BODY))) {
$field_info_destination = field_info_fields($destination_field); // Get destination field information
$field_info_destination = $field_info_destination[$destination_field]; // Get destination field information
$db_info_destination = $field_info_destination['storage']; // Get DB specific destination field information
}
// We save each field value from the DB for transfer. (this only applies to the current revision of the field)
$source_values = field_get_items('node', $node, $source_field);
if (count($node_revisions) > 1 && !in_array($destination_field, array(APPEND_TO_BODY, REPLACE_BODY))) {
// Get all field revisions for current node
$field_revision_values = array();
$field_revision_source_table = current(array_keys($db_info_source['details']['sql']['FIELD_LOAD_REVISION']));
$field_revision_destination_table = current(array_keys($db_info_destination['details']['sql']['FIELD_LOAD_REVISION']));
$source_columns = array('entity_type', 'entity_id', 'revision_id', 'bundle', 'delta', 'language');
foreach ($field_info_source['columns'] as $column => $attributes) {
$source_columns[] = _field_sql_storage_columnname($source_field, $column);
}
$revision_query = db_select($field_revision_source_table, 'r', array('fetch' => PDO::FETCH_ASSOC))
->condition('entity_type', 'node')
->condition('bundle', $node->type)
->condition('entity_id', $node->nid)
->condition('revision_id', $node->vid, '<>')
->fields('r', $source_columns)->execute();
// Change the bundle to the destination type of the node
foreach ($revision_query as $row) {
$row['bundle'] = $destination_node_type;
$field_revision_values[] = $row;
}
// Remove all field revisions for current field in DB
node_convert_invoke_field_storage_delete($field_info_source, $db_info_source, $node);
// Reinsert the field revisions in the destination field revision table
$query = db_insert($field_revision_destination_table);
$columns = array('entity_type', 'entity_id', 'revision_id', 'bundle', 'delta', 'language');
foreach ($field_info_destination['columns'] as $column => $attributes) {
$columns[] = _field_sql_storage_columnname($destination_field, $column);
}
$query->fields($columns);
foreach ($field_revision_values as $row) {
$query->values(array_values($row));
}
$query->execute();
}
else {
// After getting the source field values, we delete the values stored in the DB (this deletes values for all field revisions)
node_convert_invoke_field_storage_delete($field_info_source, $db_info_source, $node);
}
// The source field value should be appended to the body or replaced.
if ($destination_field == APPEND_TO_BODY || $destination_field == REPLACE_BODY) {
static $node_body = '';
//static $node_teaser = '';
// We try to get the node body from a static variable, which means we did some body manipulations, otherwise load it.
if (empty($node_body)) {
$node_body_field = field_get_items('node', $node, 'body');
$node_body = $node_body_field[0]['value'];
//$node_teaser = $node_body_field[0]['summary'];
}
// Double check we have values in the field.
if (is_array($source_values)) {
// Get the field value.
$field_value = node_convert_format_field_value($node, $field_info_source, TRUE);
if ($destination_field == APPEND_TO_BODY) {
$node_body = $node_body . "\n" . $field_value;
//$node_teaser = $node_teaser . "\n" . $field_value['value'];
}
elseif ($destination_field == REPLACE_BODY) {
$node_body = $field_value;
//$node_teaser = $field_value['value'];
}
$lang_code = field_language('node', $node, $source_field);
$node->body[$lang_code][0]['value'] = $node_body;
//$node->body[$lang_code][0]['summary'] = $node_teaser;
}
return REPLACE_BODY;
}
// We put each field value back into the DB
// To do it we first get the id of the field, then we find its language code from the source value
// We add $source_values into the node object, and invoke field_storage write
$field_ids = array($field_info_destination['id'] => $field_info_destination['id']);
$lang_code = field_language('node', $node, $source_field);
// Make sure that we actually have values in the source field
if ($source_values !== FALSE) {
$node->{$destination_field}[$lang_code] = $source_values;
}
else {
$node->{$destination_field} = array();
}
// Give possibility to fields to pre-process their data
// (e.g., Link module transforms attribute array into a serialized array before insertion)
field_attach_presave('node', $node);
// For some reason link_field_presave doesn't exist anymore, so we have to call it the processing function used inside manually.
if ($field_info_destination['type'] == 'link_field') {
$instances = field_info_instances('node', $destination_node_type);
link_field_update('node', $node, $field_info_destination, $instances[$destination_field], $lang_code, $node->{$destination_field}[$lang_code]);
}