Hi, You should take a look at MapperExtension. Then you'll be able to add method which would be called depending on the orm actions. For example, you'll be able to add your own custom before_insert or after_insert or after_delete methods.
Regards, Laurent Le 15/06/2009 17:36, Didip Kerabat a écrit : > Quick note about __init__ method. SA select(..) or query(...) does not > call __init__(), so your to upper logic won't be executed then. If you > want it to be called every object construction you need to do this: > > from sqlalchemy import orm > > @orm.reconstructor > def some_function(): > self.field1=field1.upper() > > # Call that method inside __init__ as well > def __init__(self): > some_function() > > Sorry for not answering the problem. > > - Didip - > > On Mon, Jun 15, 2009 at 1:43 AM, drakkan <drakkan1...@gmail.com > <mailto:drakkan1...@gmail.com>> wrote: > > > Hi all, > > I'm migrating from django orm to sqlalchemy, in django was very simple > to override save method to do own stuff before save the value to > database, for example: > > class TestModel(models.Model): > field1=models.CharField(max_length=255) > > def save(): > self.field1=self.field1.upper() > super(TestModel,self).save() > > so when I add or modify an object it is ever converted to uppercase. > In sa this simple model become: > > class TestModel(Base) > __tablename__='testtable' > field1=Column(Unicode(255)) > > def __init__(field1): > self.field1=field1.upper() > > this way if I call the init method field1 is converted to upper but if > i modify the field I have to manually convert to upper. There is some > way to override save method as in django orm? > > regards > drakkan > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
