Thanks, I did it using synonym
class TestModel(Base) __tablename__='testtable' _field1=Column('field1',Unicode(255)) def _set_field1(self, field1): self._field1 = self.field1.upper() def _get_field1(self): return self._fiedl1 field1 = synonym('_field1', descriptor=property (_get_field1,_set_field1)) thanks drakkan On 15 Giu, 17:52, Laurent Rahuel <laurent.rah...@gmail.com> wrote: > 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 -~----------~----~----~----~------~----~------~--~---