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1 <?php
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2
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3 namespace Drupal\taxonomy;
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4
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5 use Drupal\Core\Entity\EntityInterface;
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6 use Drupal\Core\Entity\Sql\SqlContentEntityStorage;
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7 use Drupal\Core\Entity\Sql\TableMappingInterface;
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8
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9 /**
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10 * Defines a Controller class for taxonomy terms.
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11 */
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12 class TermStorage extends SqlContentEntityStorage implements TermStorageInterface {
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13
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14 /**
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15 * Array of term parents keyed by vocabulary ID and child term ID.
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16 *
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17 * @var array
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18 */
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19 protected $treeParents = [];
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20
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21 /**
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22 * Array of term ancestors keyed by vocabulary ID and parent term ID.
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23 *
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24 * @var array
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25 */
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26 protected $treeChildren = [];
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27
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28 /**
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29 * Array of terms in a tree keyed by vocabulary ID and term ID.
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30 *
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31 * @var array
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32 */
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33 protected $treeTerms = [];
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34
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35 /**
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36 * Array of loaded trees keyed by a cache id matching tree arguments.
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37 *
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38 * @var array
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39 */
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40 protected $trees = [];
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41
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42 /**
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43 * Array of all loaded term ancestry keyed by ancestor term ID, keyed by term
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44 * ID.
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45 *
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46 * @var \Drupal\taxonomy\TermInterface[][]
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47 */
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48 protected $ancestors;
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49
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50 /**
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51 * The type of hierarchy allowed within a vocabulary.
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52 *
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53 * Possible values:
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54 * - VocabularyInterface::HIERARCHY_DISABLED: No parents.
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55 * - VocabularyInterface::HIERARCHY_SINGLE: Single parent.
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56 * - VocabularyInterface::HIERARCHY_MULTIPLE: Multiple parents.
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57 *
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58 * @var int[]
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59 * An array of one the possible values above, keyed by vocabulary ID.
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60 */
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61 protected $vocabularyHierarchyType;
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62
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63 /**
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64 * {@inheritdoc}
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65 *
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66 * @param array $values
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67 * An array of values to set, keyed by property name. A value for the
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68 * vocabulary ID ('vid') is required.
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69 */
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70 public function create(array $values = []) {
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71 // Save new terms with no parents by default.
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72 if (empty($values['parent'])) {
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73 $values['parent'] = [0];
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74 }
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75 $entity = parent::create($values);
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76 return $entity;
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77 }
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78
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79 /**
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80 * {@inheritdoc}
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81 */
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82 public function resetCache(array $ids = NULL) {
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83 drupal_static_reset('taxonomy_term_count_nodes');
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84 $this->ancestors = [];
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85 $this->treeChildren = [];
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86 $this->treeParents = [];
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87 $this->treeTerms = [];
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88 $this->trees = [];
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89 $this->vocabularyHierarchyType = [];
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90 parent::resetCache($ids);
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91 }
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92
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93 /**
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94 * {@inheritdoc}
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95 */
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96 public function deleteTermHierarchy($tids) {}
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97
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98 /**
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99 * {@inheritdoc}
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100 */
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101 public function updateTermHierarchy(EntityInterface $term) {}
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102
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103 /**
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104 * {@inheritdoc}
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105 */
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106 public function loadParents($tid) {
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107 $terms = [];
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108 /** @var \Drupal\taxonomy\TermInterface $term */
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109 if ($tid && $term = $this->load($tid)) {
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110 foreach ($this->getParents($term) as $id => $parent) {
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111 // This method currently doesn't return the <root> parent.
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112 // @see https://www.drupal.org/node/2019905
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113 if (!empty($id)) {
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114 $terms[$id] = $parent;
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115 }
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116 }
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117 }
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118
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119 return $terms;
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120 }
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121
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122 /**
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123 * Returns a list of parents of this term.
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124 *
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125 * @return \Drupal\taxonomy\TermInterface[]
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126 * The parent taxonomy term entities keyed by term ID. If this term has a
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127 * <root> parent, that item is keyed with 0 and will have NULL as value.
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128 *
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129 * @internal
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130 * @todo Refactor away when TreeInterface is introduced.
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131 */
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132 protected function getParents(TermInterface $term) {
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133 $parents = $ids = [];
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134 // Cannot use $this->get('parent')->referencedEntities() here because that
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135 // strips out the '0' reference.
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136 foreach ($term->get('parent') as $item) {
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137 if ($item->target_id == 0) {
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138 // The <root> parent.
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139 $parents[0] = NULL;
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140 continue;
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141 }
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142 $ids[] = $item->target_id;
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143 }
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144
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145 // @todo Better way to do this? AND handle the NULL/0 parent?
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146 // Querying the terms again so that the same access checks are run when
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147 // getParents() is called as in Drupal version prior to 8.3.
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148 $loaded_parents = [];
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149
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150 if ($ids) {
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151 $query = \Drupal::entityQuery('taxonomy_term')
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152 ->condition('tid', $ids, 'IN');
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153
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154 $loaded_parents = static::loadMultiple($query->execute());
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155 }
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156
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157 return $parents + $loaded_parents;
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158 }
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159
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160 /**
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161 * {@inheritdoc}
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162 */
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163 public function loadAllParents($tid) {
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164 /** @var \Drupal\taxonomy\TermInterface $term */
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165 return (!empty($tid) && $term = $this->load($tid)) ? $this->getAncestors($term) : [];
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166 }
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167
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168 /**
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169 * Returns all ancestors of this term.
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170 *
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171 * @return \Drupal\taxonomy\TermInterface[]
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172 * A list of ancestor taxonomy term entities keyed by term ID.
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173 *
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174 * @internal
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175 * @todo Refactor away when TreeInterface is introduced.
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176 */
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177 protected function getAncestors(TermInterface $term) {
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178 if (!isset($this->ancestors[$term->id()])) {
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179 $this->ancestors[$term->id()] = [$term->id() => $term];
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180 $search[] = $term->id();
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181
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182 while ($tid = array_shift($search)) {
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183 foreach ($this->getParents(static::load($tid)) as $id => $parent) {
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184 if ($parent && !isset($this->ancestors[$term->id()][$id])) {
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185 $this->ancestors[$term->id()][$id] = $parent;
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186 $search[] = $id;
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187 }
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188 }
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189 }
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190 }
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191 return $this->ancestors[$term->id()];
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192 }
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193
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194 /**
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195 * {@inheritdoc}
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196 */
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197 public function loadChildren($tid, $vid = NULL) {
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198 /** @var \Drupal\taxonomy\TermInterface $term */
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199 return (!empty($tid) && $term = $this->load($tid)) ? $this->getChildren($term) : [];
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200 }
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201
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202 /**
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203 * Returns all children terms of this term.
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204 *
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205 * @return \Drupal\taxonomy\TermInterface[]
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206 * A list of children taxonomy term entities keyed by term ID.
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207 *
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208 * @internal
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209 * @todo Refactor away when TreeInterface is introduced.
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210 */
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211 public function getChildren(TermInterface $term) {
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212 $query = \Drupal::entityQuery('taxonomy_term')
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213 ->condition('parent', $term->id());
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214 return static::loadMultiple($query->execute());
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215 }
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216
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217 /**
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218 * {@inheritdoc}
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219 */
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220 public function loadTree($vid, $parent = 0, $max_depth = NULL, $load_entities = FALSE) {
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221 $cache_key = implode(':', func_get_args());
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222 if (!isset($this->trees[$cache_key])) {
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223 // We cache trees, so it's not CPU-intensive to call on a term and its
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224 // children, too.
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225 if (!isset($this->treeChildren[$vid])) {
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226 $this->treeChildren[$vid] = [];
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227 $this->treeParents[$vid] = [];
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228 $this->treeTerms[$vid] = [];
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229 $query = $this->database->select($this->getDataTable(), 't');
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230 $query->join('taxonomy_term__parent', 'p', 't.tid = p.entity_id');
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231 $query->addExpression('parent_target_id', 'parent');
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232 $result = $query
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233 ->addTag('taxonomy_term_access')
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234 ->fields('t')
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235 ->condition('t.vid', $vid)
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236 ->condition('t.default_langcode', 1)
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237 ->orderBy('t.weight')
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238 ->orderBy('t.name')
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239 ->execute();
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240 foreach ($result as $term) {
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241 $this->treeChildren[$vid][$term->parent][] = $term->tid;
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242 $this->treeParents[$vid][$term->tid][] = $term->parent;
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243 $this->treeTerms[$vid][$term->tid] = $term;
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244 }
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245 }
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246
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247 // Load full entities, if necessary. The entity controller statically
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248 // caches the results.
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249 $term_entities = [];
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250 if ($load_entities) {
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251 $term_entities = $this->loadMultiple(array_keys($this->treeTerms[$vid]));
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252 }
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253
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254 $max_depth = (!isset($max_depth)) ? count($this->treeChildren[$vid]) : $max_depth;
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255 $tree = [];
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256
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257 // Keeps track of the parents we have to process, the last entry is used
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258 // for the next processing step.
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259 $process_parents = [];
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260 $process_parents[] = $parent;
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261
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262 // Loops over the parent terms and adds its children to the tree array.
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263 // Uses a loop instead of a recursion, because it's more efficient.
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264 while (count($process_parents)) {
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265 $parent = array_pop($process_parents);
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266 // The number of parents determines the current depth.
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267 $depth = count($process_parents);
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268 if ($max_depth > $depth && !empty($this->treeChildren[$vid][$parent])) {
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269 $has_children = FALSE;
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270 $child = current($this->treeChildren[$vid][$parent]);
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271 do {
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272 if (empty($child)) {
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273 break;
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274 }
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275 $term = $load_entities ? $term_entities[$child] : $this->treeTerms[$vid][$child];
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276 if (isset($this->treeParents[$vid][$load_entities ? $term->id() : $term->tid])) {
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277 // Clone the term so that the depth attribute remains correct
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278 // in the event of multiple parents.
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279 $term = clone $term;
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280 }
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281 $term->depth = $depth;
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282 if (!$load_entities) {
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283 unset($term->parent);
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284 }
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285 $tid = $load_entities ? $term->id() : $term->tid;
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286 $term->parents = $this->treeParents[$vid][$tid];
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287 $tree[] = $term;
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288 if (!empty($this->treeChildren[$vid][$tid])) {
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289 $has_children = TRUE;
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290
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291 // We have to continue with this parent later.
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292 $process_parents[] = $parent;
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293 // Use the current term as parent for the next iteration.
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294 $process_parents[] = $tid;
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295
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296 // Reset pointers for child lists because we step in there more
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297 // often with multi parents.
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298 reset($this->treeChildren[$vid][$tid]);
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299 // Move pointer so that we get the correct term the next time.
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300 next($this->treeChildren[$vid][$parent]);
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301 break;
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302 }
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303 } while ($child = next($this->treeChildren[$vid][$parent]));
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304
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305 if (!$has_children) {
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306 // We processed all terms in this hierarchy-level, reset pointer
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307 // so that this function works the next time it gets called.
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308 reset($this->treeChildren[$vid][$parent]);
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309 }
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310 }
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311 }
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312 $this->trees[$cache_key] = $tree;
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313 }
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314 return $this->trees[$cache_key];
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315 }
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316
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317 /**
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318 * {@inheritdoc}
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319 */
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320 public function nodeCount($vid) {
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321 $query = $this->database->select('taxonomy_index', 'ti');
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322 $query->addExpression('COUNT(DISTINCT ti.nid)');
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323 $query->leftJoin($this->getBaseTable(), 'td', 'ti.tid = td.tid');
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324 $query->condition('td.vid', $vid);
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325 $query->addTag('vocabulary_node_count');
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326 return $query->execute()->fetchField();
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327 }
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328
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329 /**
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330 * {@inheritdoc}
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331 */
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332 public function resetWeights($vid) {
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333 $this->database->update($this->getDataTable())
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334 ->fields(['weight' => 0])
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335 ->condition('vid', $vid)
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336 ->execute();
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337 }
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338
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339 /**
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340 * {@inheritdoc}
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341 */
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342 public function getNodeTerms(array $nids, array $vocabs = [], $langcode = NULL) {
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343 $query = $this->database->select($this->getDataTable(), 'td');
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344 $query->innerJoin('taxonomy_index', 'tn', 'td.tid = tn.tid');
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345 $query->fields('td', ['tid']);
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346 $query->addField('tn', 'nid', 'node_nid');
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347 $query->orderby('td.weight');
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348 $query->orderby('td.name');
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349 $query->condition('tn.nid', $nids, 'IN');
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350 $query->addTag('taxonomy_term_access');
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351 if (!empty($vocabs)) {
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352 $query->condition('td.vid', $vocabs, 'IN');
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353 }
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354 if (!empty($langcode)) {
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355 $query->condition('td.langcode', $langcode);
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356 }
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357
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358 $results = [];
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359 $all_tids = [];
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360 foreach ($query->execute() as $term_record) {
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361 $results[$term_record->node_nid][] = $term_record->tid;
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362 $all_tids[] = $term_record->tid;
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363 }
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364
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365 $all_terms = $this->loadMultiple($all_tids);
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366 $terms = [];
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367 foreach ($results as $nid => $tids) {
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368 foreach ($tids as $tid) {
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369 $terms[$nid][$tid] = $all_terms[$tid];
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370 }
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371 }
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372 return $terms;
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373 }
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374
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375 /**
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376 * {@inheritdoc}
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377 */
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378 public function getTermIdsWithPendingRevisions() {
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379 $table_mapping = $this->getTableMapping();
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Chris@18
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380 $id_field = $table_mapping->getColumnNames($this->entityType->getKey('id'))['value'];
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Chris@18
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381 $revision_field = $table_mapping->getColumnNames($this->entityType->getKey('revision'))['value'];
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Chris@18
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382 $rta_field = $table_mapping->getColumnNames($this->entityType->getKey('revision_translation_affected'))['value'];
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Chris@18
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383 $langcode_field = $table_mapping->getColumnNames($this->entityType->getKey('langcode'))['value'];
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Chris@18
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384 $revision_default_field = $table_mapping->getColumnNames($this->entityType->getRevisionMetadataKey('revision_default'))['value'];
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Chris@18
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385
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Chris@18
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386 $query = $this->database->select($this->getRevisionDataTable(), 'tfr');
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Chris@18
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387 $query->fields('tfr', [$id_field]);
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Chris@18
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388 $query->addExpression("MAX(tfr.$revision_field)", $revision_field);
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Chris@18
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389
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Chris@18
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390 $query->join($this->getRevisionTable(), 'tr', "tfr.$revision_field = tr.$revision_field AND tr.$revision_default_field = 0");
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Chris@18
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391
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Chris@18
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392 $inner_select = $this->database->select($this->getRevisionDataTable(), 't');
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Chris@18
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393 $inner_select->condition("t.$rta_field", '1');
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Chris@18
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394 $inner_select->fields('t', [$id_field, $langcode_field]);
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Chris@18
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395 $inner_select->addExpression("MAX(t.$revision_field)", $revision_field);
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Chris@18
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396 $inner_select
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Chris@18
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397 ->groupBy("t.$id_field")
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Chris@18
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398 ->groupBy("t.$langcode_field");
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Chris@18
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399
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Chris@18
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400 $query->join($inner_select, 'mr', "tfr.$revision_field = mr.$revision_field AND tfr.$langcode_field = mr.$langcode_field");
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Chris@18
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401
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Chris@18
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402 $query->groupBy("tfr.$id_field");
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Chris@18
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403
|
Chris@18
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404 return $query->execute()->fetchAllKeyed(1, 0);
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Chris@18
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405 }
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Chris@18
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406
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Chris@18
|
407 /**
|
Chris@18
|
408 * {@inheritdoc}
|
Chris@18
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409 */
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Chris@18
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410 public function getVocabularyHierarchyType($vid) {
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Chris@18
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411 // Return early if we already computed this value.
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Chris@18
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412 if (isset($this->vocabularyHierarchyType[$vid])) {
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Chris@18
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413 return $this->vocabularyHierarchyType[$vid];
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Chris@18
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414 }
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Chris@18
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415
|
Chris@18
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416 $parent_field_storage = $this->entityFieldManager->getFieldStorageDefinitions($this->entityTypeId)['parent'];
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Chris@18
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417 $table_mapping = $this->getTableMapping();
|
Chris@18
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418
|
Chris@18
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419 $target_id_column = $table_mapping->getFieldColumnName($parent_field_storage, 'target_id');
|
Chris@18
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420 $delta_column = $table_mapping->getFieldColumnName($parent_field_storage, TableMappingInterface::DELTA);
|
Chris@18
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421
|
Chris@18
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422 $query = $this->database->select($table_mapping->getFieldTableName('parent'), 'p');
|
Chris@18
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423 $query->addExpression("MAX($target_id_column)", 'max_parent_id');
|
Chris@18
|
424 $query->addExpression("MAX($delta_column)", 'max_delta');
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Chris@18
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425 $query->condition('bundle', $vid);
|
Chris@18
|
426
|
Chris@18
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427 $result = $query->execute()->fetchAll();
|
Chris@18
|
428
|
Chris@18
|
429 // If all the terms have the same parent, the parent can only be root (0).
|
Chris@18
|
430 if ((int) $result[0]->max_parent_id === 0) {
|
Chris@18
|
431 $this->vocabularyHierarchyType[$vid] = VocabularyInterface::HIERARCHY_DISABLED;
|
Chris@18
|
432 }
|
Chris@18
|
433 // If no term has a delta higher than 0, no term has multiple parents.
|
Chris@18
|
434 elseif ((int) $result[0]->max_delta === 0) {
|
Chris@18
|
435 $this->vocabularyHierarchyType[$vid] = VocabularyInterface::HIERARCHY_SINGLE;
|
Chris@18
|
436 }
|
Chris@18
|
437 else {
|
Chris@18
|
438 $this->vocabularyHierarchyType[$vid] = VocabularyInterface::HIERARCHY_MULTIPLE;
|
Chris@18
|
439 }
|
Chris@18
|
440
|
Chris@18
|
441 return $this->vocabularyHierarchyType[$vid];
|
Chris@18
|
442 }
|
Chris@18
|
443
|
Chris@18
|
444 /**
|
Chris@18
|
445 * {@inheritdoc}
|
Chris@18
|
446 */
|
Chris@0
|
447 public function __sleep() {
|
Chris@0
|
448 $vars = parent::__sleep();
|
Chris@0
|
449 // Do not serialize static cache.
|
Chris@18
|
450 unset($vars['ancestors'], $vars['treeChildren'], $vars['treeParents'], $vars['treeTerms'], $vars['trees'], $vars['vocabularyHierarchyType']);
|
Chris@0
|
451 return $vars;
|
Chris@0
|
452 }
|
Chris@0
|
453
|
Chris@0
|
454 /**
|
Chris@0
|
455 * {@inheritdoc}
|
Chris@0
|
456 */
|
Chris@0
|
457 public function __wakeup() {
|
Chris@0
|
458 parent::__wakeup();
|
Chris@0
|
459 // Initialize static caches.
|
Chris@17
|
460 $this->ancestors = [];
|
Chris@0
|
461 $this->treeChildren = [];
|
Chris@0
|
462 $this->treeParents = [];
|
Chris@0
|
463 $this->treeTerms = [];
|
Chris@0
|
464 $this->trees = [];
|
Chris@18
|
465 $this->vocabularyHierarchyType = [];
|
Chris@0
|
466 }
|
Chris@0
|
467
|
Chris@0
|
468 }
|