/**
* True if page can be appended
* @param Page $page The page before
* @return bool
*/
protected function CanCreateAfter()
{
$parent = $this->tree->ParentOf($this->page);
if ($parent) {
return BackendModule::Guard()->Allow(BackendAction::Create(), $parent);
}
return BackendModule::Guard()->GrantAddPageToSite($this->page->GetSite())->ToBool();
}
/**
* Adds a page and all of its children
* @param Page $page The current page
*/
private function AddPageBranch(Page $page)
{
$this->AddPage($page);
$child = $this->pageTree->FirstChildOf($page);
while ($child) {
$this->AddPageBranch($child);
$child = $this->pageTree->NextOf($child);
}
}
protected function ParentID()
{
$parent = $this->tree->ParentOf($this->page);
return $parent ? $parent->GetID() : '0';
}
/**
*
* @return Page Returns the next page after the current page
*/
protected function NextPage()
{
$page = $this->page;
$this->page = $this->tree->NextOf($this->page);
return $page;
}