public function View::duplicateDisplayAsType

Duplicates an existing display into a new display type.

For example clone to display a page display as a block display.

Parameters

string $old_display_id: The origin of the duplicated display.

string $new_display_type: The display type of the new display.

Return value

string The display ID of the new display.

Overrides ViewEntityInterface::duplicateDisplayAsType

File

core/modules/views/src/Entity/View.php, line 238

Class

View

Defines a View configuration entity class.

Namespace

Code

public function duplicateDisplayAsType($old_display_id, $new_display_type) {
  $executable = $this
    ->getExecutable();
  $display = $executable
    ->newDisplay($new_display_type);
  $new_display_id = $display->display['id'];
  $displays = $this
    ->get('display');

  // Let the display title be generated by the addDisplay method and set the
  // right display plugin, but keep the rest from the original display.
  $display_duplicate = $displays[$old_display_id];
  unset($display_duplicate['display_title']);
  unset($display_duplicate['display_plugin']);
  unset($display_duplicate['new_id']);
  $displays[$new_display_id] = NestedArray::mergeDeep($displays[$new_display_id], $display_duplicate);
  $displays[$new_display_id]['id'] = $new_display_id;

  // First set the displays.
  $this
    ->set('display', $displays);

  // Ensure that we just copy display options, which are provided by the new
  // display plugin.
  $executable
    ->setDisplay($new_display_id);
  $executable->display_handler
    ->filterByDefinedOptions($displays[$new_display_id]['display_options']);

  // Update the display settings.
  $this
    ->set('display', $displays);
  return $new_display_id;
}