the first one works for insertion. let us know how you do updates. On 18 Temmuz, 22:16, Timuçin Kızılay <[email protected]> wrote: > Mengu yazmış: > > > > > > > doesn't this help?: > > > def __init__(self, a, b, c): > > self.a = a > > self.b = b > > self.c = a + b > > > On 18 Temmuz, 18:00, Timuçin Kızılay <[email protected]> wrote: > >> I've read the documentation but could not find it so I'm asking here. > > >> I have a table in models and there is a column in that model that it's > >> value shuld be changed when there is an insert or update on that table. > > >> here is an example: > >> ----------- > >> class Sometable(DeclarativeBase): > >> __tablename__ = 'sometable' > >> id = Column(Integer, autoincrement=True, primary_key=True) > >> a = Column(Unicode(50)) > >> b = Column(Unicode(50)) > >> c = Column(Unicode(100)) > >> ------- > > >> in that table, I want only set the values of a and b and value of c > >> should be c = a + b > >> I think I should write a function but where should I put that function? > > it helps only when creating a new record but not updating or setting the > fields like this. > > ------------------------------- > somerecord = model.SomeTable() > somerecord.a = 'something' > somerecord.b = 'otherthing' > > model.DBSession.add(somerecord) > ------------------------------- > > I need to write some function that should run when a record updated or > inserted to set other fields depending of some fields.
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