class HistoryRenderCallback in Drupal 8

Render callback object.

Hierarchy

• class \Drupal\history\HistoryRenderCallback implements RenderCallbackInterface

1 file declares its use of HistoryRenderCallback

history.module in core/modules/history/history.module

Records which users have read which content.

File

core/modules/history/src/HistoryRenderCallback.php, line 10

Namespace

Drupal\history

class HistoryRenderCallback implements RenderCallbackInterface {

  /**
   * #lazy_builder callback; attaches the last read timestamp for a node.
   *
   * @param int $node_id
   *   The node ID for which to attach the last read timestamp.
   *
   * @return array
   *   A renderable array containing the last read timestamp.
   */
  public static function lazyBuilder($node_id) {
    $element = [];
    $element['#attached']['drupalSettings']['history']['lastReadTimestamps'][$node_id] = (int) history_read($node_id);
    return $element;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
HistoryRenderCallback::lazyBuilder	public static	function	#lazy_builder callback; attaches the last read timestamp for a node.