PhamePostUnpublishController.php

<?php

/**
 * @group phame
 */
final class PhamePostUnpublishController extends PhameController {

  private $id;

  public function willProcessRequest(array $data) {
    $this->id = $data['id'];
  }

  public function processRequest() {
    $request = $this->getRequest();
    $user = $request->getUser();

    $post = id(new PhamePostQuery())
      ->setViewer($user)
      ->withIDs(array($this->id))
      ->requireCapabilities(
        array(
          PhabricatorPolicyCapability::CAN_EDIT,
        ))
      ->executeOne();
    if (!$post) {
      return new Aphront404Response();
    }

    if ($request->isFormPost()) {
      $post->setVisibility(PhamePost::VISIBILITY_DRAFT);
      $post->setDatePublished(0);
      $post->save();

      return id(new AphrontRedirectResponse())
        ->setURI($this->getApplicationURI('/post/view/'.$post->getID().'/'));
    }

    $cancel_uri = $this->getApplicationURI('/post/view/'.$post->getID().'/');

    $dialog = id(new AphrontDialogView())
      ->setUser($user)
      ->setTitle(pht('Unpublish Post?'))
      ->appendChild(
        pht(
          'The post "%s" will no longer be visible to other users until you '.
          'republish it.',
          $post->getTitle()))
      ->addSubmitButton(pht('Unpublish'))
      ->addCancelButton($cancel_uri);

    return id(new AphrontDialogResponse())->setDialog($dialog);
  }
}