diff core/modules/taxonomy/src/TermStorage.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/taxonomy/src/TermStorage.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,373 @@
+<?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 = [];
+  }
+
+}