public function getAllowedFileTypes()
	{
		$arrFileTypesOfParents = array();
		
		if ($this->fileTypesInherit && !$this->isRootCategory() && $this->hasParentCategory())
		{
			$arrFileTypesOfParents = $this->parentCategory->getAllowedFileTypes();
		}
		
		$arrFileTypes = DmsUtils::getUniqueFileTypes($this->fileTypes, $arrFileTypesOfParents);
		
		return $arrFileTypes;
	}