Hi all, I am worried about how to model the next scene (this is an example, but an appropriated one): In the model we have People, and there are different kind of people, let's say: Professors, Students and Other. Each People object has a 'type' attribute. Type can be P, S or O.
So far, all right. Each people has an identifier that looks like: {LETTER}{NUMBER}. P1, P2, P3 and S1 are examples of valid identifiers. When you instance a People object you know its type but not its number: p = People(type="S") The question is, how can I handle this numbers in my model? The count should be dependent of the type. I am thinking about creating PostgreSQL sequences and use them to retrieve the propitiated number each time a People is instanced: ... if type == "S": self.number = seq_wrapper_s.next() elif typ == "P": self.number = seq_wrapper_p.next() else: self.number = seq_wrapper_o.next() ... But this will tie me to an specific data base engine. Is there a way of doing this task in Django in a independent-db-engine way? Thanks in advance, Juanjo -- mi blog: http://www.juanjoconti.com.ar --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---