diff core/lib/Drupal/Core/Config/UnmetDependenciesException.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/Config/UnmetDependenciesException.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,121 @@
+<?php
+
+namespace Drupal\Core\Config;
+
+use Drupal\Component\Render\FormattableMarkup;
+use Drupal\Core\StringTranslation\TranslationInterface;
+
+/**
+ * An exception thrown if configuration has unmet dependencies.
+ */
+class UnmetDependenciesException extends ConfigException {
+
+  /**
+   * A list of configuration objects that have unmet dependencies.
+   *
+   * The list is keyed by the config object name, and the value is an array of
+   * the missing dependencies:
+   *
+   * @code
+   *
+   * self::configObjects = [
+   *   config_object_name => [
+   *     'missing_dependency_1',
+   *     'missing_dependency_2',
+   *   ]
+   * ];
+   *
+   * @endcode
+   *
+   * @var array
+   */
+  protected $configObjects = [];
+
+  /**
+   * The name of the extension that is being installed.
+   *
+   * @var string
+   */
+  protected $extension;
+
+  /**
+   * Gets the list of configuration objects that have unmet dependencies.
+   *
+   * @return array
+   *   A list of configuration objects that have unmet dependencies, keyed by
+   *   object name, with the value being a list of the unmet dependencies.
+   */
+  public function getConfigObjects() {
+    return $this->configObjects;
+  }
+
+  /**
+   * Gets the name of the extension that is being installed.
+   *
+   * @return string
+   *   The name of the extension that is being installed.
+   */
+  public function getExtension() {
+    return $this->extension;
+  }
+
+  /**
+   * Gets a translated message from the exception.
+   *
+   * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
+   *   The string translation service.
+   *
+   * @return string
+   */
+  public function getTranslatedMessage(TranslationInterface $string_translation, $extension) {
+    return $string_translation->translate(
+      'Unable to install %extension due to unmet dependencies: %config_names',
+      [
+        '%config_names' => static::formatConfigObjectList($this->configObjects),
+        '%extension' => $extension,
+      ]
+    );
+  }
+
+  /**
+   * Creates an exception for an extension and a list of configuration objects.
+   *
+   * @param $extension
+   *   The name of the extension that is being installed.
+   * @param array $config_objects
+   *   A list of configuration keyed by configuration name, with unmet
+   *   dependencies as the value.
+   *
+   * @return \Drupal\Core\Config\PreExistingConfigException
+   */
+  public static function create($extension, array $config_objects) {
+    $message = new FormattableMarkup('Configuration objects provided by %extension have unmet dependencies: %config_names',
+      [
+        '%config_names' => static::formatConfigObjectList($config_objects),
+        '%extension' => $extension
+      ]
+    );
+    $e = new static($message);
+    $e->configObjects = $config_objects;
+    $e->extension = $extension;
+    return $e;
+  }
+
+  /**
+   * Formats a list of configuration objects.
+   *
+   * @param array $config_objects
+   *   A list of configuration object names that have unmet dependencies.
+   *
+   * @return string
+   *   The imploded config_objects, formatted in an easy to read string.
+   */
+  protected static function formatConfigObjectList(array $config_objects) {
+    $list = [];
+    foreach ($config_objects as $config_object => $missing_dependencies) {
+      $list[] = $config_object . ' (' . implode(', ', $missing_dependencies) . ')';
+    }
+    return implode(', ', $list);
+  }
+
+}