public function ConfigDownloadController::diff in Demonstration site (Sandbox / Snapshot) 8

Shows diff of specified configuration file.

Parameters

string $source_name: The name of the configuration file.

string $target_name: (optional) The name of the target configuration file if different from the $source_name.

string $collection: (optional) The configuration collection name. Defaults to the default collection.

Return value

string Table showing a two-way diff between the active and staged configuration.

File

src/Controller/ConfigDownloadController.php, line 159

Class

ConfigDownloadController

Returns responses for config module routes.

Namespace

Drupal\demo\Controller

Code

public function diff($source_name, $target_name = NULL, $collection = NULL) {
  if (!isset($collection)) {
    $collection = StorageInterface::DEFAULT_COLLECTION;
  }
  $diff = $this->configManager
    ->diff($this->targetStorage, $this->sourceStorage, $source_name, $target_name, $collection);
  $this->diffFormatter->show_header = FALSE;
  $build = [];
  $build['#title'] = t('View changes of @config_file', [
    '@config_file' => $source_name,
  ]);

  // Add the CSS for the inline diff.
  $build['#attached']['library'][] = 'system/diff';
  $build['diff'] = [
    '#type' => 'table',
    '#attributes' => [
      'class' => [
        'diff',
      ],
    ],
    '#header' => [
      [
        'data' => t('Active'),
        'colspan' => '2',
      ],
      [
        'data' => t('Staged'),
        'colspan' => '2',
      ],
    ],
    '#rows' => $this->diffFormatter
      ->format($diff),
  ];
  $build['back'] = [
    '#type' => 'link',
    '#attributes' => [
      'class' => [
        'dialog-cancel',
      ],
    ],
    '#title' => "Back to 'Synchronize configuration' page.",
    '#url' => Url::fromRoute('config.sync'),
  ];
  return $build;
}