369 lines
11 KiB
PHP
369 lines
11 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @file
|
|
* Defines a field storage backend.
|
|
*/
|
|
|
|
|
|
/**
|
|
* Implements hook_field_storage_info().
|
|
*/
|
|
function field_test_field_storage_info() {
|
|
return array(
|
|
'field_test_storage' => array(
|
|
'label' => t('Test storage'),
|
|
'description' => t('Dummy test storage backend. Stores field values in the variable table.'),
|
|
),
|
|
'field_test_storage_failure' => array(
|
|
'label' => t('Test storage failure'),
|
|
'description' => t('Dummy test storage backend. Always fails to create fields.'),
|
|
),
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_details().
|
|
*/
|
|
function field_test_field_storage_details($field) {
|
|
$details = array();
|
|
|
|
// Add field columns.
|
|
$columns = array();
|
|
foreach ((array) $field['columns'] as $column_name => $attributes) {
|
|
$columns[$column_name] = $column_name;
|
|
}
|
|
return array(
|
|
'drupal_variables' => array(
|
|
'field_test_storage_data[FIELD_LOAD_CURRENT]' => $columns,
|
|
'field_test_storage_data[FIELD_LOAD_REVISION]' => $columns,
|
|
),
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_details_alter().
|
|
*
|
|
* @see FieldAttachStorageTestCase::testFieldStorageDetailsAlter()
|
|
*/
|
|
function field_test_field_storage_details_alter(&$details, $field) {
|
|
|
|
// For testing, storage details are changed only because of the field name.
|
|
if ($field['field_name'] == 'field_test_change_my_details') {
|
|
$columns = array();
|
|
foreach ((array) $field['columns'] as $column_name => $attributes) {
|
|
$columns[$column_name] = $column_name;
|
|
}
|
|
$details['drupal_variables'] = array(
|
|
FIELD_LOAD_CURRENT => array(
|
|
'moon' => $columns,
|
|
),
|
|
FIELD_LOAD_REVISION => array(
|
|
'mars' => $columns,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Helper function: stores or retrieves data from the 'storage backend'.
|
|
*/
|
|
function _field_test_storage_data($data = NULL) {
|
|
if (!isset($data)) {
|
|
return variable_get('field_test_storage_data', array());
|
|
}
|
|
else {
|
|
variable_set('field_test_storage_data', $data);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_load().
|
|
*/
|
|
function field_test_field_storage_load($entity_type, $entities, $age, $fields, $options) {
|
|
$data = _field_test_storage_data();
|
|
|
|
$load_current = $age == FIELD_LOAD_CURRENT;
|
|
|
|
foreach ($fields as $field_id => $ids) {
|
|
$field = field_info_field_by_id($field_id);
|
|
$field_name = $field['field_name'];
|
|
$field_data = $data[$field['id']];
|
|
$sub_table = $load_current ? 'current' : 'revisions';
|
|
$delta_count = array();
|
|
foreach ($field_data[$sub_table] as $row) {
|
|
if ($row->type == $entity_type && (!$row->deleted || $options['deleted'])) {
|
|
if (($load_current && in_array($row->entity_id, $ids)) || (!$load_current && in_array($row->revision_id, $ids))) {
|
|
if (in_array($row->language, field_available_languages($entity_type, $field))) {
|
|
if (!isset($delta_count[$row->entity_id][$row->language])) {
|
|
$delta_count[$row->entity_id][$row->language] = 0;
|
|
}
|
|
if ($field['cardinality'] == FIELD_CARDINALITY_UNLIMITED || $delta_count[$row->entity_id][$row->language] < $field['cardinality']) {
|
|
$item = array();
|
|
foreach ($field['columns'] as $column => $attributes) {
|
|
$item[$column] = $row->{$column};
|
|
}
|
|
$entities[$row->entity_id]->{$field_name}[$row->language][] = $item;
|
|
$delta_count[$row->entity_id][$row->language]++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_write().
|
|
*/
|
|
function field_test_field_storage_write($entity_type, $entity, $op, $fields) {
|
|
$data = _field_test_storage_data();
|
|
|
|
list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
|
|
|
|
foreach ($fields as $field_id) {
|
|
$field = field_info_field_by_id($field_id);
|
|
$field_name = $field['field_name'];
|
|
$field_data = &$data[$field_id];
|
|
|
|
$all_languages = field_available_languages($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) {
|
|
foreach ($field_data['current'] as $key => $row) {
|
|
if ($row->type == $entity_type && $row->entity_id == $id && in_array($row->language, $languages)) {
|
|
unset($field_data['current'][$key]);
|
|
}
|
|
}
|
|
if (isset($vid)) {
|
|
foreach ($field_data['revisions'] as $key => $row) {
|
|
if ($row->type == $entity_type && $row->revision_id == $vid) {
|
|
unset($field_data['revisions'][$key]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach ($field_languages as $langcode) {
|
|
$items = (array) $entity->{$field_name}[$langcode];
|
|
$delta_count = 0;
|
|
foreach ($items as $delta => $item) {
|
|
$row = (object) array(
|
|
'field_id' => $field_id,
|
|
'type' => $entity_type,
|
|
'entity_id' => $id,
|
|
'revision_id' => $vid,
|
|
'bundle' => $bundle,
|
|
'delta' => $delta,
|
|
'deleted' => FALSE,
|
|
'language' => $langcode,
|
|
);
|
|
foreach ($field['columns'] as $column => $attributes) {
|
|
$row->{$column} = isset($item[$column]) ? $item[$column] : NULL;
|
|
}
|
|
|
|
$field_data['current'][] = $row;
|
|
if (isset($vid)) {
|
|
$field_data['revisions'][] = $row;
|
|
}
|
|
|
|
if ($field['cardinality'] != FIELD_CARDINALITY_UNLIMITED && ++$delta_count == $field['cardinality']) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_delete().
|
|
*/
|
|
function field_test_field_storage_delete($entity_type, $entity, $fields) {
|
|
list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
|
|
|
|
// Note: reusing field_test_storage_purge(), like field_sql_storage.module
|
|
// does, is highly inefficient in our case...
|
|
foreach (field_info_instances($bundle) as $instance) {
|
|
if (isset($fields[$instance['field_id']])) {
|
|
$field = field_info_field_by_id($instance['field_id']);
|
|
field_test_field_storage_purge($entity_type, $entity, $field, $instance);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_purge().
|
|
*/
|
|
function field_test_field_storage_purge($entity_type, $entity, $field, $instance) {
|
|
$data = _field_test_storage_data();
|
|
|
|
list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
|
|
|
|
$field_data = &$data[$field['id']];
|
|
foreach (array('current', 'revisions') as $sub_table) {
|
|
foreach ($field_data[$sub_table] as $key => $row) {
|
|
if ($row->type == $entity_type && $row->entity_id == $id) {
|
|
unset($field_data[$sub_table][$key]);
|
|
}
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_delete_revision().
|
|
*/
|
|
function field_test_field_storage_delete_revision($entity_type, $entity, $fields) {
|
|
$data = _field_test_storage_data();
|
|
|
|
list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
|
|
foreach ($fields as $field_id) {
|
|
$field_data = &$data[$field_id];
|
|
foreach (array('current', 'revisions') as $sub_table) {
|
|
foreach ($field_data[$sub_table] as $key => $row) {
|
|
if ($row->type == $entity_type && $row->entity_id == $id && $row->revision_id == $vid) {
|
|
unset($field_data[$sub_table][$key]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Sort helper for field_test_field_storage_query().
|
|
*
|
|
* Sorts by entity type and entity id.
|
|
*/
|
|
function _field_test_field_storage_query_sort_helper($a, $b) {
|
|
if ($a->type == $b->type) {
|
|
if ($a->entity_id == $b->entity_id) {
|
|
return 0;
|
|
}
|
|
else {
|
|
return $a->entity_id < $b->entity_id ? -1 : 1;
|
|
}
|
|
}
|
|
else {
|
|
return $a->type < $b->type ? -1 : 1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_create_field().
|
|
*/
|
|
function field_test_field_storage_create_field($field) {
|
|
if ($field['storage']['type'] == 'field_test_storage_failure') {
|
|
throw new Exception('field_test_storage_failure engine always fails to create fields');
|
|
}
|
|
|
|
$data = _field_test_storage_data();
|
|
|
|
$data[$field['id']] = array(
|
|
'current' => array(),
|
|
'revisions' => array(),
|
|
);
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_delete_field().
|
|
*/
|
|
function field_test_field_storage_delete_field($field) {
|
|
$data = _field_test_storage_data();
|
|
|
|
$field_data = &$data[$field['id']];
|
|
foreach (array('current', 'revisions') as $sub_table) {
|
|
foreach ($field_data[$sub_table] as &$row) {
|
|
$row->deleted = TRUE;
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_storage_delete_instance().
|
|
*/
|
|
function field_test_field_storage_delete_instance($instance) {
|
|
$data = _field_test_storage_data();
|
|
|
|
$field = field_info_field($instance['field_name']);
|
|
$field_data = &$data[$field['id']];
|
|
foreach (array('current', 'revisions') as $sub_table) {
|
|
foreach ($field_data[$sub_table] as &$row) {
|
|
if ($row->bundle == $instance['bundle']) {
|
|
$row->deleted = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_attach_create_bundle().
|
|
*/
|
|
function field_test_field_attach_create_bundle($bundle) {
|
|
// We don't need to do anything here.
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_attach_rename_bundle().
|
|
*/
|
|
function field_test_field_attach_rename_bundle($bundle_old, $bundle_new) {
|
|
$data = _field_test_storage_data();
|
|
|
|
// We need to account for deleted or inactive fields and instances.
|
|
$instances = field_read_instances(array('bundle' => $bundle_new), array('include_deleted' => TRUE, 'include_inactive' => TRUE));
|
|
foreach ($instances as $field_name => $instance) {
|
|
$field = field_info_field_by_id($instance['field_id']);
|
|
if ($field['storage']['type'] == 'field_test_storage') {
|
|
$field_data = &$data[$field['id']];
|
|
foreach (array('current', 'revisions') as $sub_table) {
|
|
foreach ($field_data[$sub_table] as &$row) {
|
|
if ($row->bundle == $bundle_old) {
|
|
$row->bundle = $bundle_new;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|
|
|
|
/**
|
|
* Implements hook_field_attach_delete_bundle().
|
|
*/
|
|
function field_test_field_attach_delete_bundle($entity_type, $bundle, $instances) {
|
|
$data = _field_test_storage_data();
|
|
|
|
foreach ($instances as $instance) {
|
|
$field = field_info_field_by_id($instance['field_id']);
|
|
if ($field['storage']['type'] == 'field_test_storage') {
|
|
$field_data = &$data[$field['id']];
|
|
foreach (array('current', 'revisions') as $sub_table) {
|
|
foreach ($field_data[$sub_table] as &$row) {
|
|
if ($row->bundle == $bundle) {
|
|
$row->deleted = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
_field_test_storage_data($data);
|
|
}
|