El 01/06/12 16:59, Michael Bayer escribió:
@appender needs to be a method that just accepts a mapped object to be added to
the collection. then, @internally_instrumented is needed to prevent the
collections system from placing additional insturmentation on standard methods
like __setitem__. Also building custom dictionary collections is very
difficult in any case (for me as well) so you were close, and that's pretty
good !
Only one more question.. Querying for example the ULine object, always
give me the permissions for all objects.. Exists any way to filter that
permissions by the User object I filter in the query, i.e. something like:
objs =
session.query(ULine).join(PermissionAssoc).join(Permission).join(User).filter(User.username
== u'kratos').all()
print objs[0].permissions
----
MyMappedCollection({u'read': [<__main__.Permission object at
0xa04442c>, <__main__.Permission object at 0xa04454c>]})
----
One of this objects is for the user john, and other for the user
kratos, and I only want the Permission for the user kratos.
P.D: Other options is create the mapping using the user_id key and get
something like:
print objs[0].permissions[user1.id]
[<__main__.Permission object at 0xa04442c>]
print objs[0].permissions[user2.id]
[<__main__.Permission object at 0xa04454c>]
But this always loads all the Permissions too.
Thanks.
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