Hi,
It is me again with an interesting thing, I've searched the net, this group
etc. Not a lot of people seem interested in append_result, I AM!!
I am looking for a way to implement the following:
I have many tables, a lot with polymorphic inheritance and self and cross
references.
In order to control "available" data I have set up a system similar to ACL
(Access Control Lists)
Depending on "Who I am" I can get data from the database.
I want to do so within the MapperExtension I already have set up to do some
"before update" and "before insert"
def append_result(self, mapper, selectcontext, row, instance, result,
**flags):
if instance.__tablename__ == 'he':
return EXT_STOP
else:
return EXT_CONTINUE
would do such a thing, but I want (for the sake of the code behind that) to
continue with a heavily modified instance.
To avoid making this long code (a lot of different object types pass through
here, remember the polymorhic bit)
Does anyone have an interesting approach to this? basically I need to do
something like instance= instance_class_type(new, configuration, based, on,
the, ACL)
Any help would be wonderfull,
Martijn
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