I want to set table, mapper arguments automatically.
The following is the only way I have found to do this.
Is this supported?
Am I wasting my time with Declarative and should rather use the non
declarative if I want this control?
class MyMeta(DeclarativeMeta):
def __new__(meta, classname, bases, classdict):
# Copy interesting arguments from base classes
for base in bases:
for arg in (a for a in ('__table_args__',
'__tablename__',
'__mapper_args__') if a in
base.__dict__):
classdict[arg] = base.__dict__[arg]
return DeclarativeMeta.__new__(meta, classname, bases,
classdict)
Base = declarative_base(bind=engine)
class MyDeclarativeStuff(object):
# Set some generic stuff up.
__table_args__ = {'autoload':True}
class Customer(Base, MyDeclarativeStuff):
__metaclass__ = MyMeta
__tablename__ = 'customer'
Many Thanks.
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