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1 <?php
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2
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3 namespace Drupal\views\Entity\Render;
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4
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5 use Drupal\Core\Language\LanguageInterface;
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6 use Drupal\views\Plugin\views\query\QueryPluginBase;
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7 use Drupal\views\ResultRow;
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8
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9 /**
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10 * Renders entity translations in their row language.
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11 */
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12 class TranslationLanguageRenderer extends EntityTranslationRendererBase {
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13
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14 /**
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15 * Stores the field alias of the langcode column.
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16 *
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17 * @var string
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18 */
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19 protected $langcodeAlias;
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20
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21 /**
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22 * {@inheritdoc}
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23 */
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24 public function query(QueryPluginBase $query, $relationship = NULL) {
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25 // In order to render in the translation language of the entity, we need
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26 // to add the language code of the entity to the query. Skip if the site
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27 // is not multilingual or the entity is not translatable.
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28 if (!$this->languageManager->isMultilingual() || !$this->entityType->hasKey('langcode')) {
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29 return;
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30 }
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31 $langcode_table = $this->getLangcodeTable($query, $relationship);
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32 if ($langcode_table) {
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33 /** @var \Drupal\views\Plugin\views\query\Sql $query */
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34 $table_alias = $query->ensureTable($langcode_table, $relationship);
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35 $langcode_key = $this->entityType->getKey('langcode');
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36 $this->langcodeAlias = $query->addField($table_alias, $langcode_key);
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37 }
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38 }
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39
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40 /**
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41 * Returns the name of the table holding the "langcode" field.
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42 *
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43 * @param \Drupal\views\Plugin\views\query\QueryPluginBase $query
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44 * The query being executed.
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45 * @param string $relationship
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46 * The relationship used by the entity type.
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47 *
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48 * @return string
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49 * A table name.
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50 */
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51 protected function getLangcodeTable(QueryPluginBase $query, $relationship) {
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52 /** @var \Drupal\Core\Entity\Sql\SqlContentEntityStorage $storage */
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53 $storage = \Drupal::entityTypeManager()->getStorage($this->entityType->id());
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54 $langcode_key = $this->entityType->getKey('langcode');
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55 $langcode_table = $storage->getTableMapping()->getFieldTableName($langcode_key);
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56
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57 // If the entity type is revisionable, we need to take into account views of
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58 // entity revisions. Usually the view will use the entity data table as the
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59 // query base table, however, in case of an entity revision view, we need to
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60 // use the revision table or the revision data table, depending on which one
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61 // is being used as query base table.
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62 if ($this->entityType->isRevisionable()) {
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63 $query_base_table = isset($query->relationships[$relationship]['base']) ?
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64 $query->relationships[$relationship]['base'] :
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65 $this->view->storage->get('base_table');
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66 $revision_table = $storage->getRevisionTable();
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67 $revision_data_table = $storage->getRevisionDataTable();
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68 if ($query_base_table === $revision_table) {
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69 $langcode_table = $revision_table;
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70 }
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71 elseif ($query_base_table === $revision_data_table) {
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72 $langcode_table = $revision_data_table;
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73 }
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74 }
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75
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76 return $langcode_table;
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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 preRender(array $result) {
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83 $view_builder = \Drupal::entityTypeManager()->getViewBuilder($this->entityType->id());
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84
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85 /** @var \Drupal\views\ResultRow $row */
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86 foreach ($result as $row) {
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87 $entity = $row->_entity;
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88 $entity->view = $this->view;
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89 $langcode = $this->getLangcode($row);
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90 $this->build[$entity->id()][$langcode] = $view_builder->view($entity, $this->view->rowPlugin->options['view_mode'], $this->getLangcode($row));
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91 }
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92 }
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93
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94 /**
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95 * {@inheritdoc}
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96 */
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97 public function render(ResultRow $row) {
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98 $entity_id = $row->_entity->id();
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99 $langcode = $this->getLangcode($row);
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100 return $this->build[$entity_id][$langcode];
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101 }
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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 getLangcode(ResultRow $row) {
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107 return isset($row->{$this->langcodeAlias}) ? $row->{$this->langcodeAlias} : $this->languageManager->getDefaultLanguage()->getId();
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108 }
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109
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110 /**
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111 * {@inheritdoc}
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112 */
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113 public function getCacheContexts() {
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114 return ['languages:' . LanguageInterface::TYPE_CONTENT];
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115 }
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116
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117 }
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