well,
i suppose it is not possible
except if
i make a special fetch, to a special module, in where i should include a class with my object, and find a method wich should delete it... it should be hard... :(
There are no function/operators manipulating the database currently. The main reason for this is that you don't really know when templates are run because of caching and most importantly because it encourages moving business logic into the templates.