/**
* Builds and inserts taxonomy index entries for a given node.
*
* The index lists all terms that are related to a given node entity, and is
* therefore maintained at the entity level.
*
* @param $node
* The node object.
*
* @see taxonomy_build_node_index()
*/
protected function buildNodeIndex($node)
{
// We maintain a denormalized table of term/node relationships, containing
// only data for current, published nodes.
$status = NULL;
if (variable_get('taxonomy_maintain_index_table', TRUE)) {
// If a node property is not set in the node object when node_save() is
// called, the old value from $node->original is used.
if (!empty($node->original)) {
$status = (int) (!empty($node->status) || !isset($node->status) && !empty($node->original->status));
$sticky = (int) (!empty($node->sticky) || !isset($node->sticky) && !empty($node->original->sticky));
} else {
$status = (int) (!empty($node->status));
$sticky = (int) (!empty($node->sticky));
}
}
// We only maintain the taxonomy index for published nodes.
if ($status) {
// Collect a unique list of all the term IDs from all node fields.
$tid_all = array();
foreach (field_info_instances('node', $node->type) as $instance) {
$field_name = $instance['field_name'];
$field = field_info_field($field_name);
if (!empty($field['settings']['target_type']) && $field['settings']['target_type'] == 'taxonomy_term' && $field['storage']['type'] == 'field_sql_storage') {
// If a field value is not set in the node object when node_save() is
// called, the old value from $node->original is used.
if (isset($node->{$field_name})) {
$items = $node->{$field_name};
} elseif (isset($node->original->{$field_name})) {
$items = $node->original->{$field_name};
} else {
continue;
}
foreach (field_available_languages('node', $field) as $langcode) {
if (!empty($items[$langcode])) {
foreach ($items[$langcode] as $item) {
$tid_all[$item['target_id']] = $item['target_id'];
}
}
}
}
// Re-calculate the terms added in taxonomy_build_node_index() so
// we can optimize database queries.
$original_tid_all = array();
if ($field['module'] == 'taxonomy' && $field['storage']['type'] == 'field_sql_storage') {
// If a field value is not set in the node object when node_save() is
// called, the old value from $node->original is used.
if (isset($node->{$field_name})) {
$items = $node->{$field_name};
} elseif (isset($node->original->{$field_name})) {
$items = $node->original->{$field_name};
} else {
continue;
}
foreach (field_available_languages('node', $field) as $langcode) {
if (!empty($items[$langcode])) {
foreach ($items[$langcode] as $item) {
$original_tid_all[$item['tid']] = $item['tid'];
}
}
}
}
}
// Insert index entries for all the node's terms, that were not
// already inserted in taxonomy_build_node_index().
$tid_all = array_diff($tid_all, $original_tid_all);
// Insert index entries for all the node's terms.
if (!empty($tid_all)) {
$query = db_insert('taxonomy_index')->fields(array('nid', 'tid', 'sticky', 'created'));
foreach ($tid_all as $tid) {
$query->values(array('nid' => $node->nid, 'tid' => $tid, 'sticky' => $sticky, 'created' => $node->created));
}
$query->execute();
}
}
}
/**
* Write field data for an entity.
*
* This hook is invoked from field_attach_insert() and field_attach_update(),
* to ask the field storage module to save field data.
*
* @param $entity_type
* The entity type of entity, such as 'node' or 'user'.
* @param $entity
* The entity on which to operate.
* @param $op
* FIELD_STORAGE_UPDATE when updating an existing entity,
* FIELD_STORAGE_INSERT when inserting a new entity.
* @param $fields
* An array listing the fields to be written. The keys and values of the
* array are field IDs.
*/
function hook_field_storage_write($entity_type, $entity, $op, $fields)
{
list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
if (!isset($vid)) {
$vid = $id;
}
foreach ($fields as $field_id) {
$field = field_info_field_by_id($field_id);
$field_name = $field['field_name'];
$table_name = _field_sql_storage_tablename($field);
$revision_name = _field_sql_storage_revision_tablename($field);
$all_languages = field_available_languages($entity_type, $field);
$field_languages = array_intersect($all_languages, array_keys((array) $entity->{$field_name}));
// Delete and insert, rather than update, in case a value was added.
if ($op == FIELD_STORAGE_UPDATE) {
// Delete languages present in the incoming $entity->$field_name.
// Delete all languages if $entity->$field_name is empty.
$languages = !empty($entity->{$field_name}) ? $field_languages : $all_languages;
if ($languages) {
db_delete($table_name)->condition('entity_type', $entity_type)->condition('entity_id', $id)->condition('language', $languages, 'IN')->execute();
db_delete($revision_name)->condition('entity_type', $entity_type)->condition('entity_id', $id)->condition('revision_id', $vid)->condition('language', $languages, 'IN')->execute();
}
}
// Prepare the multi-insert query.
$do_insert = FALSE;
$columns = array('entity_type', 'entity_id', 'revision_id', 'bundle', 'delta', 'language');
foreach ($field['columns'] as $column => $attributes) {
$columns[] = _field_sql_storage_columnname($field_name, $column);
}
$query = db_insert($table_name)->fields($columns);
$revision_query = db_insert($revision_name)->fields($columns);
foreach ($field_languages as $langcode) {
$items = (array) $entity->{$field_name}[$langcode];
$delta_count = 0;
foreach ($items as $delta => $item) {
// We now know we have someting to insert.
$do_insert = TRUE;
$record = array('entity_type' => $entity_type, 'entity_id' => $id, 'revision_id' => $vid, 'bundle' => $bundle, 'delta' => $delta, 'language' => $langcode);
foreach ($field['columns'] as $column => $attributes) {
$record[_field_sql_storage_columnname($field_name, $column)] = isset($item[$column]) ? $item[$column] : NULL;
}
$query->values($record);
if (isset($vid)) {
$revision_query->values($record);
}
if ($field['cardinality'] != FIELD_CARDINALITY_UNLIMITED && ++$delta_count == $field['cardinality']) {
break;
}
}
}
// Execute the query if we have values to insert.
if ($do_insert) {
$query->execute();
$revision_query->execute();
}
}
}
/**
* Given a relationship, gets the stub entity for the source.
*
* @param array $relationship The relationship array.
*
* @return bool|mixed Either the stub entity or false on error.
*/
protected function getSourceStubEntity(array $relationship)
{
$field_name = $relationship['field_name'];
$source_entity_ids = entity_get_id_by_uuid($relationship['source_type'], array($relationship['source_uuid']));
$source_entity_id = count($source_entity_ids) > 0 ? reset($source_entity_ids) : null;
$source_entity_vids = entity_get_id_by_uuid($relationship['source_type'], array($relationship['source_vuuid']), true);
$source_entity_vid = count($source_entity_vids) > 0 ? reset($source_entity_vids) : false;
if (!$source_entity_id) {
return false;
}
// Get the bundle for the source entity.
$source_entity_bundle = Entity::getBundleFromID($relationship['source_type'], $source_entity_id);
if (!$source_entity_bundle) {
return false;
}
// Get the stub entity for the source.
$source_stub = Entity::getStub($relationship['source_type'], $source_entity_id, $source_entity_bundle, $source_entity_vid);
// Load the existing field onto the entity.
$field_instance_info = field_info_instance($relationship['source_type'], $field_name, $source_entity_bundle);
if ($field_instance_info === false) {
return false;
}
try {
// First, load the revisions.
field_attach_load_revision($relationship['source_type'], array($source_entity_id => $source_stub), array('field_id' => $field_instance_info['field_id']));
// Second, get the original deltas for the revision.
$deltas = db_select('field_revision_' . $field_name, 'fr')->fields('fr', array('language', 'delta'))->condition($source_entity_vid ? 'revision_id' : 'entity_id', $source_entity_vid ? $source_entity_vid : $source_entity_id)->condition('language', field_available_languages($relationship['source_type'], $field_instance_info), 'IN')->orderBy('delta')->execute();
// Assign the deltas to their languages.
$deltas_languages = array();
foreach ($deltas as $delta) {
if (!array_key_exists($delta->language, $deltas_languages)) {
$deltas_languages[$delta->language] = array();
}
$deltas_languages[$delta->language][] = $delta->delta;
}
// Reset the deltas to their correct orders.
$field_value =& $source_stub->{$field_name};
foreach ($deltas_languages as $language => $deltas) {
$new_value = array();
for ($i = 0; $i < count($field_value[$language]); $i++) {
$new_value[$deltas[$i]] = $field_value[$language][$i];
}
$field_value[$language] = $new_value;
}
} catch (\Exception $ex) {
// If an exception was thrown, that probably means the field doesn't
// exist, so we should return false.
return false;
}
return $source_stub;
}
