public function LanguageHierarchyConfigFactoryOverride::loadOverrides in Language Hierarchy 8

Same name and namespace in other branches

1. 2.x src/Config/LanguageHierarchyConfigFactoryOverride.php \Drupal\language_hierarchy\Config\LanguageHierarchyConfigFactoryOverride::loadOverrides()

Returns config overrides.

Parameters

array $names: A list of configuration names that are being loaded.

Return value

array An array keyed by configuration name of override data. Override data contains a nested array structure of overrides.

Overrides LanguageConfigFactoryOverride::loadOverrides

File

src/Config/LanguageHierarchyConfigFactoryOverride.php, line 23

Class

LanguageHierarchyConfigFactoryOverride

Provides language overrides for the configuration factory, with fallbacks.

Namespace

Drupal\language_hierarchy\Config

Code

public function loadOverrides($names) {

  // Skip to using the parent implementation if there is no fallback chain or
  // language. If the fallback chain just hasn't been computed yet, read it
  // directly from base storage to avoid a circular dependency on the
  // configuration factory.
  if ($this->language && (!isset($this->fallbackChain) || !empty($this->fallbackChain))) {
    $storage = $this
      ->getStorage($this->language
      ->getId());
    $loaded = $storage
      ->readMultiple($names);
    if ($missing = array_diff($names, array_keys($loaded))) {

      // Try fallback languages.
      if (!isset($this->fallbackChain)) {
        $this->fallbackChain = $this
          ->getFallbackChainFromBaseConfig($this->language
          ->getId());
      }
      $ancestors = $this->fallbackChain;
      while ($missing && ($ancestor = array_shift($ancestors))) {
        $fallback_storage = $this
          ->getStorage($ancestor);
        $loaded += $fallback_storage
          ->readMultiple($missing);
        $missing = array_diff($names, array_keys($loaded));
      }
    }
    return $loaded;
  }
  else {
    return parent::loadOverrides($names);
  }
}