On Feb 4, 2008 4:54 PM, Alexandre da Silva <[EMAIL PROTECTED]> wrote: > > Hello all, > > it would be useful (and more clear) if we could define a synonym on a > subclass. > > a little example: > > > we have a Person class identifying all persons on system > > > class Person(Entity): > name = Field(Unicode(30)) > nickname = Field(Unicode(30)) > primary_mail = Field(Unicode(200)) > > and we have a class identifying just the users... something like > > class User(Person): > user_name = Field(Unicode(30)) > real_name = Field(Unicode(30)) > email_address = Field(Unicode(30)) > password = Field(Unicode(12)) > > but in this class we could be use the name and nickname instead of > create two new columns > > > the class should look like > > class User(Person): > user_name = Synonym(Person.nickname) > real_name = Synonym(Person.name) > email_address = Synonym(Person.primary_address) > password = Field(Unicode(12)) > > > so we could put a synonym for any parent class in this class. > > than you can ask me why to create this behavior. > well, at moment I needed this feature because I am using turbogears, > and I have my own (complex) person structure, and I want to subclass > the Turbogears User class from my person class. but the framework expect > the field names that Turbogears User class have. > for now, I will put the synonym at my person class, but I think that > User class is the best place to put that synonyms.
It should be possible to do and it seems like a good idea, though we'd have to use either string column names or a function returning the column because, for example, "Person.nickname" doesn't exist until the Person entity is setup. And even if, in this case, you could call setup_all() after the Person class is defined and before the User class is defined, this would be limitative in other cases. Would you care to try to make a patch? -- Gaëtan de Menten http://openhex.org --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "SQLElixir" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlelixir?hl=en -~----------~----~----~----~------~----~------~--~---
