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1 <?php
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2
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3 namespace Drupal\language\Entity;
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4
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5 use Drupal\Core\Config\Entity\ConfigEntityBase;
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6 use Drupal\Core\Entity\EntityStorageInterface;
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7 use Drupal\Core\Language\LanguageManager;
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8 use Drupal\language\ConfigurableLanguageManager;
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9 use Drupal\language\ConfigurableLanguageManagerInterface;
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10 use Drupal\language\Exception\DeleteDefaultLanguageException;
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11 use Drupal\language\ConfigurableLanguageInterface;
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12
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13 /**
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14 * Defines the ConfigurableLanguage entity.
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15 *
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16 * @ConfigEntityType(
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17 * id = "configurable_language",
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18 * label = @Translation("Language"),
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19 * label_collection = @Translation("Languages"),
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20 * label_singular = @Translation("language"),
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21 * label_plural = @Translation("languages"),
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22 * label_count = @PluralTranslation(
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23 * singular = "@count language",
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24 * plural = "@count languages",
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25 * ),
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26 * handlers = {
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27 * "list_builder" = "Drupal\language\LanguageListBuilder",
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28 * "access" = "Drupal\language\LanguageAccessControlHandler",
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29 * "form" = {
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30 * "add" = "Drupal\language\Form\LanguageAddForm",
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31 * "edit" = "Drupal\language\Form\LanguageEditForm",
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32 * "delete" = "Drupal\language\Form\LanguageDeleteForm"
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33 * }
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34 * },
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35 * admin_permission = "administer languages",
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36 * config_prefix = "entity",
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37 * entity_keys = {
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38 * "id" = "id",
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39 * "label" = "label",
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40 * "weight" = "weight"
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41 * },
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42 * config_export = {
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43 * "id",
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44 * "label",
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45 * "direction",
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46 * "weight",
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47 * "locked"
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48 * },
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49 * links = {
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50 * "delete-form" = "/admin/config/regional/language/delete/{configurable_language}",
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51 * "edit-form" = "/admin/config/regional/language/edit/{configurable_language}",
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52 * "collection" = "/admin/config/regional/language",
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53 * }
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54 * )
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55 */
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56 class ConfigurableLanguage extends ConfigEntityBase implements ConfigurableLanguageInterface {
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57
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58 /**
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59 * The language ID (machine name).
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60 *
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61 * @var string
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62 */
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63 protected $id;
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64
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65 /**
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66 * The human-readable label for the language.
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67 *
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68 * @var string
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69 */
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70 protected $label;
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71
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72 /**
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73 * The direction of language, either DIRECTION_LTR or DIRECTION_RTL.
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74 *
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75 * @var int
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76 */
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77 protected $direction = self::DIRECTION_LTR;
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78
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79 /**
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80 * The weight of the language, used in lists of languages.
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81 *
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82 * @var int
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83 */
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84 protected $weight = 0;
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85
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86 /**
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87 * Locked languages cannot be edited.
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88 *
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89 * @var bool
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90 */
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91 protected $locked = FALSE;
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92
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93 /**
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94 * Used during saving to detect when the site becomes multilingual.
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95 *
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96 * This property is not saved to the language entity, but is needed for
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97 * detecting when to rebuild the services.
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98 *
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99 * @see \Drupal\language\Entity\ConfigurableLanguage::preSave()
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100 * @see \Drupal\language\Entity\ConfigurableLanguage::postSave()
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101 *
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102 * @var bool
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103 */
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104 protected $preSaveMultilingual;
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105
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106 /**
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107 * {@inheritdoc}
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108 */
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109 public function isDefault() {
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110 return static::getDefaultLangcode() == $this->id();
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111 }
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112
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113 /**
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114 * {@inheritdoc}
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115 */
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116 public function isLocked() {
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117 return (bool) $this->locked;
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118 }
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119
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120 /**
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121 * {@inheritdoc}
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122 */
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123 public function preSave(EntityStorageInterface $storage) {
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124 parent::preSave($storage);
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125 // Store whether or not the site is already multilingual so that we can
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126 // rebuild services if necessary during
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127 // \Drupal\language\Entity\ConfigurableLanguage::postSave().
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128 $this->preSaveMultilingual = \Drupal::languageManager()->isMultilingual();
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129 }
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130
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131 /**
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132 * {@inheritdoc}
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133 */
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134 public function postSave(EntityStorageInterface $storage, $update = TRUE) {
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135 parent::postSave($storage, $update);
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136
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137 $language_manager = \Drupal::languageManager();
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138 $language_manager->reset();
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139 if (!$this->isLocked() && $language_manager instanceof ConfigurableLanguageManagerInterface && !$this->isSyncing()) {
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140 $language_manager->updateLockedLanguageWeights();
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141 }
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142
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143 // Update URL Prefixes for all languages after the
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144 // LanguageManagerInterface::getLanguages() cache is flushed.
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145 language_negotiation_url_prefixes_update();
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146
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147 // If after adding this language the site will become multilingual, we need
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148 // to rebuild language services.
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149 if (!$this->preSaveMultilingual && !$update && $language_manager instanceof ConfigurableLanguageManagerInterface) {
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150 $language_manager::rebuildServices();
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151 }
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152 if (!$update) {
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153 // Install any available language configuration overrides for the language.
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154 \Drupal::service('language.config_factory_override')->installLanguageOverrides($this->id());
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155 }
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156
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157 if (!$this->isLocked() && !$update) {
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158 // Add language to the list of language domains.
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159 $config = \Drupal::configFactory()->getEditable('language.negotiation');
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160 $domains = $config->get('url.domains');
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161 $domains[$this->id()] = '';
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162 $config->set('url.domains', $domains)->save(TRUE);
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163 }
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164 }
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165
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166 /**
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167 * {@inheritdoc}
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168 *
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169 * @throws \DeleteDefaultLanguageException
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170 * Exception thrown if we're trying to delete the default language entity.
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171 * This is not allowed as a site must have a default language.
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172 */
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173 public static function preDelete(EntityStorageInterface $storage, array $entities) {
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174 $default_langcode = static::getDefaultLangcode();
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175 foreach ($entities as $entity) {
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176 if ($entity->id() == $default_langcode && !$entity->isUninstalling()) {
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177 throw new DeleteDefaultLanguageException('Can not delete the default language');
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178 }
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179 }
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180 }
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181
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182 /**
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183 * {@inheritdoc}
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184 */
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185 public static function postDelete(EntityStorageInterface $storage, array $entities) {
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186 parent::postDelete($storage, $entities);
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187 $language_manager = \Drupal::languageManager();
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188 $language_manager->reset();
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189 $entity = reset($entities);
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190 if ($language_manager instanceof ConfigurableLanguageManagerInterface && !$entity->isUninstalling() && !$entity->isSyncing()) {
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191 $language_manager->updateLockedLanguageWeights();
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192 }
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193 // If after deleting this language the site will become monolingual, we need
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194 // to rebuild language services.
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195 if (!\Drupal::languageManager()->isMultilingual()) {
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196 ConfigurableLanguageManager::rebuildServices();
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197 }
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198
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199 // Remove language from language prefix and domain list.
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200 $config = \Drupal::configFactory()->getEditable('language.negotiation');
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201 $config->clear('url.prefixes.' . $entity->id());
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202 $config->clear('url.domains.' . $entity->id());
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203 $config->save(TRUE);
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204 }
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205
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206 /**
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207 * Gets the default langcode.
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208 *
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209 * @return string
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210 * The current default langcode.
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211 */
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212 protected static function getDefaultLangcode() {
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213 $language = \Drupal::service('language.default')->get();
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214 return $language->getId();
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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 getName() {
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221 return $this->label();
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222 }
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223
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224 /**
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225 * {@inheritdoc}
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226 */
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227 public function setName($name) {
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228 $this->label = $name;
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229
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230 return $this;
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231 }
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232
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233 /**
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234 * {@inheritdoc}
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235 */
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236 public function getId() {
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237 return $this->id();
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238 }
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239
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240 /**
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241 * {@inheritdoc}
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242 */
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243 public function getDirection() {
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244 return $this->direction;
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245 }
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246
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247 /**
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248 * {@inheritdoc}
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249 */
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250 public function getWeight() {
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251 return $this->weight;
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252 }
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253
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254 /**
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255 * {@inheritdoc}
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256 */
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257 public function setWeight($weight) {
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258 $this->weight = $weight;
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259 return $this;
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260 }
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261
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262 /**
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263 * Creates a configurable language object from a langcode.
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264 *
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265 * @param string $langcode
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266 * The language code to use to create the object.
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267 *
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268 * @return $this
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269 *
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270 * @see \Drupal\Core\Language\LanguageManager::getStandardLanguageList()
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271 */
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272 public static function createFromLangcode($langcode) {
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273 $standard_languages = LanguageManager::getStandardLanguageList();
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274 if (!isset($standard_languages[$langcode])) {
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275 // Drupal does not know about this language, so we set its values with the
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276 // best guess. The user will be able to edit afterwards.
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277 return static::create([
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278 'id' => $langcode,
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279 'label' => $langcode,
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280 ]);
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281 }
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282 else {
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283 // A known predefined language, details will be filled in properly.
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284 return static::create([
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285 'id' => $langcode,
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286 'label' => $standard_languages[$langcode][0],
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287 'direction' => isset($standard_languages[$langcode][2]) ? $standard_languages[$langcode][2] : static::DIRECTION_LTR,
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288 ]);
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289 }
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290 }
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291
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292 }
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