如何使用上下文过滤器以编程方式呈现视图？

如何在Drupal 8中使用上下文过滤器以编程方式呈现视图？

在Drupal 7中，我通常使用以下代码。

$view = views_get_view('test_view'); //test_view is the view machine name
$view->set_display("block"); //block is the view display name
$view->set_arguments($tid); //$tid is the argument to pass
$view->pre_execute();
$view->execute();
$content = $view->render();

在Drupal 8中是否有其他方法可以实现这一目标？

基于所使用的代码views_get_view_result()，我将使用以下代码，作为与您在问题中显示的代码等效的代码。

  $args = [$tid];
  $view = Views::getView('test_view');
  if (is_object($view)) {
    $view->setArguments($args);
    $view->setDisplay('block');
    $view->preExecute();
    $view->execute();
    $content = $view->buildRenderable('block', $args);
  }

/**
 * Return the rendered view with contextual filter.
 * @param string $viewId - The view machine name.
 * @param string $viewId - The display machine name.
 * @param array $arguments - The arguments to pass.
 * 
 * @return object $result
 */
function getView($viewId, $displayId, array $arguments)
{
    $result = false;
    $view = Views::getView($viewId);

    if (is_object($view)) {
        $view->setDisplay($displayId);
        $view->setArguments($arguments);
        $view->execute();

        // Render the view
        $result = \Drupal::service('renderer')->render($view->render());
    }

    return $result;
}

/**
 * Get json output.
 * @return array $data
 */
function jsonData() {
    $data = [];
    $viewId = 'rest_comments';
    $displayId = 'rest_export_1';
    $arguments = [$nid];

    // Get the view
    $result = getView($viewId, $displayId, $arguments);

    if(is_object($result)) {
        $json = $result->jsonSerialize();
        $data = json_decode($json);
    }

    return $data;
}


/**
 * Get the view object.
 * @return object $view
 */
function view() {
    $viewId = 'rest_comments';
    $displayId = 'rest_export_1';
    $arguments = [$nid];

    // Get the view
    $view = getView($viewId, $displayId, $arguments);

    return $view;
}

要获取REST Export显示的实际JSON输出，您可以执行以下操作：

$view = Views::getView('view_id');
$render_array = $view->buildRenderable('display_name', $args);
$rendered = \Drupal::service('renderer')->renderRoot($render_array);
$json_string = $rendered->jsonSerialize();
$json_object = json_decode($rendered);