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?
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