--- /dev/null
+<?php
+
+namespace Drupal\taxonomy;
+
+use Drupal\Core\Entity\Sql\SqlContentEntityStorage;
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Defines a Controller class for taxonomy terms.
+ */
+class TermStorage extends SqlContentEntityStorage implements TermStorageInterface {
+
+ /**
+ * Array of loaded parents keyed by child term ID.
+ *
+ * @var array
+ */
+ protected $parents = [];
+
+ /**
+ * Array of all loaded term ancestry keyed by ancestor term ID.
+ *
+ * @var array
+ */
+ protected $parentsAll = [];
+
+ /**
+ * Array of child terms keyed by parent term ID.
+ *
+ * @var array
+ */
+ protected $children = [];
+
+ /**
+ * Array of term parents keyed by vocabulary ID and child term ID.
+ *
+ * @var array
+ */
+ protected $treeParents = [];
+
+ /**
+ * Array of term ancestors keyed by vocabulary ID and parent term ID.
+ *
+ * @var array
+ */
+ protected $treeChildren = [];
+
+ /**
+ * Array of terms in a tree keyed by vocabulary ID and term ID.
+ *
+ * @var array
+ */
+ protected $treeTerms = [];
+
+ /**
+ * Array of loaded trees keyed by a cache id matching tree arguments.
+ *
+ * @var array
+ */
+ protected $trees = [];
+
+ /**
+ * {@inheritdoc}
+ *
+ * @param array $values
+ * An array of values to set, keyed by property name. A value for the
+ * vocabulary ID ('vid') is required.
+ */
+ public function create(array $values = []) {
+ // Save new terms with no parents by default.
+ if (empty($values['parent'])) {
+ $values['parent'] = [0];
+ }
+ $entity = parent::create($values);
+ return $entity;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function resetCache(array $ids = NULL) {
+ drupal_static_reset('taxonomy_term_count_nodes');
+ $this->parents = [];
+ $this->parentsAll = [];
+ $this->children = [];
+ $this->treeChildren = [];
+ $this->treeParents = [];
+ $this->treeTerms = [];
+ $this->trees = [];
+ parent::resetCache($ids);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function deleteTermHierarchy($tids) {
+ $this->database->delete('taxonomy_term_hierarchy')
+ ->condition('tid', $tids, 'IN')
+ ->execute();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function updateTermHierarchy(EntityInterface $term) {
+ $query = $this->database->insert('taxonomy_term_hierarchy')
+ ->fields(['tid', 'parent']);
+
+ foreach ($term->parent as $parent) {
+ $query->values([
+ 'tid' => $term->id(),
+ 'parent' => (int) $parent->target_id,
+ ]);
+ }
+ $query->execute();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function loadParents($tid) {
+ if (!isset($this->parents[$tid])) {
+ $parents = [];
+ $query = $this->database->select('taxonomy_term_field_data', 't');
+ $query->join('taxonomy_term_hierarchy', 'h', 'h.parent = t.tid');
+ $query->addField('t', 'tid');
+ $query->condition('h.tid', $tid);
+ $query->condition('t.default_langcode', 1);
+ $query->addTag('taxonomy_term_access');
+ $query->orderBy('t.weight');
+ $query->orderBy('t.name');
+ if ($ids = $query->execute()->fetchCol()) {
+ $parents = $this->loadMultiple($ids);
+ }
+ $this->parents[$tid] = $parents;
+ }
+ return $this->parents[$tid];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function loadAllParents($tid) {
+ if (!isset($this->parentsAll[$tid])) {
+ $parents = [];
+ if ($term = $this->load($tid)) {
+ $parents[$term->id()] = $term;
+ $terms_to_search[] = $term->id();
+
+ while ($tid = array_shift($terms_to_search)) {
+ if ($new_parents = $this->loadParents($tid)) {
+ foreach ($new_parents as $new_parent) {
+ if (!isset($parents[$new_parent->id()])) {
+ $parents[$new_parent->id()] = $new_parent;
+ $terms_to_search[] = $new_parent->id();
+ }
+ }
+ }
+ }
+ }
+
+ $this->parentsAll[$tid] = $parents;
+ }
+ return $this->parentsAll[$tid];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function loadChildren($tid, $vid = NULL) {
+ if (!isset($this->children[$tid])) {
+ $children = [];
+ $query = $this->database->select('taxonomy_term_field_data', 't');
+ $query->join('taxonomy_term_hierarchy', 'h', 'h.tid = t.tid');
+ $query->addField('t', 'tid');
+ $query->condition('h.parent', $tid);
+ if ($vid) {
+ $query->condition('t.vid', $vid);
+ }
+ $query->condition('t.default_langcode', 1);
+ $query->addTag('taxonomy_term_access');
+ $query->orderBy('t.weight');
+ $query->orderBy('t.name');
+ if ($ids = $query->execute()->fetchCol()) {
+ $children = $this->loadMultiple($ids);
+ }
+ $this->children[$tid] = $children;
+ }
+ return $this->children[$tid];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function loadTree($vid, $parent = 0, $max_depth = NULL, $load_entities = FALSE) {
+ $cache_key = implode(':', func_get_args());
+ if (!isset($this->trees[$cache_key])) {
+ // We cache trees, so it's not CPU-intensive to call on a term and its
+ // children, too.
+ if (!isset($this->treeChildren[$vid])) {
+ $this->treeChildren[$vid] = [];
+ $this->treeParents[$vid] = [];
+ $this->treeTerms[$vid] = [];
+ $query = $this->database->select('taxonomy_term_field_data', 't');
+ $query->join('taxonomy_term_hierarchy', 'h', 'h.tid = t.tid');
+ $result = $query
+ ->addTag('taxonomy_term_access')
+ ->fields('t')
+ ->fields('h', ['parent'])
+ ->condition('t.vid', $vid)
+ ->condition('t.default_langcode', 1)
+ ->orderBy('t.weight')
+ ->orderBy('t.name')
+ ->execute();
+ foreach ($result as $term) {
+ $this->treeChildren[$vid][$term->parent][] = $term->tid;
+ $this->treeParents[$vid][$term->tid][] = $term->parent;
+ $this->treeTerms[$vid][$term->tid] = $term;
+ }
+ }
+
+ // Load full entities, if necessary. The entity controller statically
+ // caches the results.
+ $term_entities = [];
+ if ($load_entities) {
+ $term_entities = $this->loadMultiple(array_keys($this->treeTerms[$vid]));
+ }
+
+ $max_depth = (!isset($max_depth)) ? count($this->treeChildren[$vid]) : $max_depth;
+ $tree = [];
+
+ // Keeps track of the parents we have to process, the last entry is used
+ // for the next processing step.
+ $process_parents = [];
+ $process_parents[] = $parent;
+
+ // Loops over the parent terms and adds its children to the tree array.
+ // Uses a loop instead of a recursion, because it's more efficient.
+ while (count($process_parents)) {
+ $parent = array_pop($process_parents);
+ // The number of parents determines the current depth.
+ $depth = count($process_parents);
+ if ($max_depth > $depth && !empty($this->treeChildren[$vid][$parent])) {
+ $has_children = FALSE;
+ $child = current($this->treeChildren[$vid][$parent]);
+ do {
+ if (empty($child)) {
+ break;
+ }
+ $term = $load_entities ? $term_entities[$child] : $this->treeTerms[$vid][$child];
+ if (isset($this->treeParents[$vid][$load_entities ? $term->id() : $term->tid])) {
+ // Clone the term so that the depth attribute remains correct
+ // in the event of multiple parents.
+ $term = clone $term;
+ }
+ $term->depth = $depth;
+ unset($term->parent);
+ $tid = $load_entities ? $term->id() : $term->tid;
+ $term->parents = $this->treeParents[$vid][$tid];
+ $tree[] = $term;
+ if (!empty($this->treeChildren[$vid][$tid])) {
+ $has_children = TRUE;
+
+ // We have to continue with this parent later.
+ $process_parents[] = $parent;
+ // Use the current term as parent for the next iteration.
+ $process_parents[] = $tid;
+
+ // Reset pointers for child lists because we step in there more
+ // often with multi parents.
+ reset($this->treeChildren[$vid][$tid]);
+ // Move pointer so that we get the correct term the next time.
+ next($this->treeChildren[$vid][$parent]);
+ break;
+ }
+ } while ($child = next($this->treeChildren[$vid][$parent]));
+
+ if (!$has_children) {
+ // We processed all terms in this hierarchy-level, reset pointer
+ // so that this function works the next time it gets called.
+ reset($this->treeChildren[$vid][$parent]);
+ }
+ }
+ }
+ $this->trees[$cache_key] = $tree;
+ }
+ return $this->trees[$cache_key];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function nodeCount($vid) {
+ $query = $this->database->select('taxonomy_index', 'ti');
+ $query->addExpression('COUNT(DISTINCT ti.nid)');
+ $query->leftJoin('taxonomy_term_data', 'td', 'ti.tid = td.tid');
+ $query->condition('td.vid', $vid);
+ $query->addTag('vocabulary_node_count');
+ return $query->execute()->fetchField();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function resetWeights($vid) {
+ $this->database->update('taxonomy_term_field_data')
+ ->fields(['weight' => 0])
+ ->condition('vid', $vid)
+ ->execute();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getNodeTerms(array $nids, array $vocabs = [], $langcode = NULL) {
+ $query = db_select('taxonomy_term_field_data', 'td');
+ $query->innerJoin('taxonomy_index', 'tn', 'td.tid = tn.tid');
+ $query->fields('td', ['tid']);
+ $query->addField('tn', 'nid', 'node_nid');
+ $query->orderby('td.weight');
+ $query->orderby('td.name');
+ $query->condition('tn.nid', $nids, 'IN');
+ $query->addTag('taxonomy_term_access');
+ if (!empty($vocabs)) {
+ $query->condition('td.vid', $vocabs, 'IN');
+ }
+ if (!empty($langcode)) {
+ $query->condition('td.langcode', $langcode);
+ }
+
+ $results = [];
+ $all_tids = [];
+ foreach ($query->execute() as $term_record) {
+ $results[$term_record->node_nid][] = $term_record->tid;
+ $all_tids[] = $term_record->tid;
+ }
+
+ $all_terms = $this->loadMultiple($all_tids);
+ $terms = [];
+ foreach ($results as $nid => $tids) {
+ foreach ($tids as $tid) {
+ $terms[$nid][$tid] = $all_terms[$tid];
+ }
+ }
+ return $terms;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __sleep() {
+ $vars = parent::__sleep();
+ // Do not serialize static cache.
+ unset($vars['parents'], $vars['parentsAll'], $vars['children'], $vars['treeChildren'], $vars['treeParents'], $vars['treeTerms'], $vars['trees']);
+ return $vars;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function __wakeup() {
+ parent::__wakeup();
+ // Initialize static caches.
+ $this->parents = [];
+ $this->parentsAll = [];
+ $this->children = [];
+ $this->treeChildren = [];
+ $this->treeParents = [];
+ $this->treeTerms = [];
+ $this->trees = [];
+ }
+
+}
projects / yaffs-website / blobdiff