- <?php
-
- * @file
- * Load Views' data so that it knows what is available to build queries from.
- */
-
- * Fetch Views' data from the cache.
- *
- * @param $move
- * Under certain circumstances it makes sense to not get the moved table, but
- * the old one. One example is views_get_handler.
- */
- function _views_fetch_data($table = NULL, $move = TRUE, $reset = FALSE) {
- $cache = &backdrop_static(__FUNCTION__ . '_cache');
- $recursion_protection = &backdrop_static(__FUNCTION__ . '_recursion_protected');
- $fully_loaded = &backdrop_static(__FUNCTION__ . '_fully_loaded');
- if ($reset) {
- $cache = NULL;
- $fully_loaded = FALSE;
- }
- if ($table) {
- if (!isset($cache[$table])) {
- $cid = 'views_data:' . $table;
- if ($data = views_cache_get($cid, TRUE)) {
- $cache[$table] = $data->data;
- }
- else {
- if (!$fully_loaded) {
-
- if ($data = views_cache_get('views_data', TRUE)) {
- $cache = $data->data;
- }
- else {
-
- $cache = _views_fetch_data_build();
- }
- $fully_loaded = TRUE;
- }
-
-
- if (isset($cache[$table])) {
- views_cache_set($cid, $cache[$table], TRUE);
- }
- else {
-
-
- views_cache_set($cid, array(), TRUE);
- }
- }
- }
- if (isset($cache[$table])) {
- if (isset($cache[$table]['moved to']) && $move) {
- $moved_table = $cache[$table]['moved to'];
- if (!empty($recursion_protection[$table])) {
-
- return NULL;
- }
- $recursion_protection[$table] = TRUE;
- $data = _views_fetch_data($moved_table);
- $recursion_protection = array();
- return $data;
- }
- return $cache[$table];
- }
- }
- else {
- if (!$fully_loaded) {
- if ($data = views_cache_get('views_data', TRUE)) {
- $cache = $data->data;
- }
- else {
-
- $cache = _views_fetch_data_build();
- }
- $fully_loaded = TRUE;
- }
- return $cache;
- }
-
- return array();
- }
-
- * Build and set the views data cache if empty.
- */
- function _views_fetch_data_build() {
- views_include_handlers();
- $cache = module_invoke_all('views_data');
- foreach (module_implements('views_data_alter') as $module) {
- $function = $module . '_views_data_alter';
- $function($cache);
- }
- _views_data_process_entity_types($cache);
-
-
- views_cache_set('views_data', $cache, TRUE);
- return $cache;
- }
-
- * Links tables having an 'entity type' specified to the respective, generic
- * entity-type tables.
- */
- function _views_data_process_entity_types(&$data) {
- foreach ($data as $table_name => $table_info) {
-
- if (!empty($table_info['table']['entity type'])) {
- $entity_table = 'views_entity_' . $table_info['table']['entity type'];
-
- $data[$entity_table]['table']['join'][$table_name] = array(
- 'left_table' => $table_name,
- );
- $data[$entity_table]['table']['entity type'] = $table_info['table']['entity type'];
-
- if (!empty($table_info['table']['group']) && empty($data[$entity_table]['table']['group'])) {
- $data[$entity_table]['table']['group'] = $table_info['table']['group'];
- }
- }
- }
- }
-
- * Fetch the plugin data from cache.
- */
- function _views_fetch_plugin_data($type = NULL, $plugin = NULL, $reset = FALSE) {
- static $cache = NULL;
- if (!isset($cache) || $reset) {
-
- views_include_handlers();
-
-
-
- global $language;
- $cache_key = 'views_plugin_data:' . $language->langcode;
- if ($reset) {
- $cache = NULL;
- }
- else {
- if ($cache_object = cache_get($cache_key, 'views')) {
- $cache = $cache_object->data;
- }
- }
-
-
- if (!$cache) {
- $cache = views_discover_plugins();
- cache_set($cache_key, $cache, 'views');
- }
- }
-
- if (!$type && !$plugin) {
- return $cache;
- }
- elseif (!$plugin) {
-
- if (isset($cache[$type])) {
- return $cache[$type];
- }
- }
- elseif (isset($cache[$type][$plugin])) {
- return $cache[$type][$plugin];
- }
-
-
- return array();
- }
-
- * Set a cached item in the views cache.
- *
- * This is just a convenience wrapper around cache_set().
- *
- * @param $cid
- * The cache ID of the data to store.
- * @param $data
- * The data to store in the cache. Complex data types will be automatically
- * serialized before insertion. Strings will be stored as plain text and not
- * serialized.
- * @param $use_language
- * If TRUE, the data will be cached specific to the currently active language.
- */
- function views_cache_set($cid, $data, $use_language = FALSE) {
- if ($use_language) {
- $cid .= ':' . $GLOBALS[LANGUAGE_TYPE_INTERFACE]->langcode;
- }
-
- cache('views')->set($cid, $data);
- }
-
- * Return data from the persistent views cache.
- *
- * This is just a convenience wrapper around cache_get().
- *
- * @param int $cid
- * The cache ID of the data to retrieve.
- * @param bool $use_language
- * If TRUE, the data will be requested specific to the currently active
- * language.
- *
- * @return stdClass|bool
- * The cache or FALSE on failure.
- */
- function views_cache_get($cid, $use_language = FALSE) {
- if ($use_language) {
- $cid .= ':' . $GLOBALS[LANGUAGE_TYPE_INTERFACE]->langcode;
- }
-
- return cache('views')->get($cid);
- }