class CheckIn extends BackendInterfacePageController
{
    protected $viewPath = '/panels/page/check_in';
    // we need this extra because this controller gets called by another page
    // and that page needs to know how to submit it.
    protected $controllerActionPath = '/ccm/system/panels/page/check_in';
 
    public function canAccess()
    {
        return $this->permissions->canApprovePageVersions() || $this->permissions->canEditPageContents();
    }
 
    public function on_start()
    {
        parent::on_start();
        if ($this->page) {
            $v = CollectionVersion::get($this->page, "RECENT");
 
            $this->set('publishDate', $v->getPublishDate());
            $this->set('publishErrors', $this->checkForPublishing());
        }
    }
 
    protected function checkForPublishing()
    {
        $c = $this->page;
        // verify this page type has all the items necessary to be approved.
        $e = Loader::helper('validation/error');
        if ($c->isPageDraft()) {
            if (!$c->getPageDraftTargetParentPageID()) {
                $e->add(t('You haven\'t chosen where to publish this page.'));
            }
        }
        $pagetype = $c->getPageTypeObject();
//        if (is_object($pagetype)) {
//            $validator = $pagetype->getPageTypeValidatorObject();
//            $e->add($validator->validatePublishDraftRequest($c));
//        }
 
        if ($c->isPageDraft() && !$e->has()) {
            $targetParentID = $c->getPageDraftTargetParentPageID();
            if ($targetParentID) {
                $tp = Page::getByID($targetParentID, 'ACTIVE');
                $pp = new Permissions($tp);
                if (!is_object($tp) || $tp->isError()) {
                    $e->add(t('Invalid target page.'));
                } else {
                    if (!$pp->canAddSubCollection($pagetype)) {
                        $e->add(
                            t(
                                'You do not have permissions to add a page of this type in the selected location.'
                            )
                        );
                    }
                }
            }
        }
 
        return $e;
    }