le 15.09.2007 23:36 [EMAIL PROTECTED] a écrit: > Regarding those Python classes that define your data model.... > > I'd like to remove an attribute I don't use anymore and don't care > about. > How do this without confusing the database and blowing away your > existing data? > > If I remove that attribute from a Python class and then do > I did that a few times during development with SA. > tg-admin sql create > This won't do anything with SA (won't suppress the corresponding column...) > again will I be happy? > If the attribute you removed was "nullable" everything will be ok because the DB will fill the column with NULL value when you create a new object. If the attribute was not nullable, you'll get an error each time you add a new object :-( Depending on the database you use, you can also alter the table and drop the column.
> Will my old data still be there? > yes. (if you don't drop the table) > > Chris > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" 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/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
