[Sqlalchemy-tickets] [sqlalchemy] #2592: allow loading of unhashable types with query

[sqlalchemy <mi...@zz...>]

#2592: allow loading of unhashable types with query
-------------------------+---------------------------------------
 Reporter:  zzzeek       |           Owner:  zzzeek
     Type:  enhancement  |          Status:  new
 Priority:  medium       |       Milestone:  0.8.0
Component:  orm          |        Severity:  minor - half an hour
 Keywords:               |  Progress State:  in progress
-------------------------+---------------------------------------
 {{{
 #!python
     def test_unhashable_type(self):
         from sqlalchemy.types import TypeDecorator, Integer
         from sqlalchemy.sql import type_coerce


         class MyType(TypeDecorator):
             impl = Integer

             def process_result_value(self, value, dialect):
                 return [value]

         User, users = self.classes.User, self.tables.users

         mapper(User, users)

         s = Session()
         row = s.\
                     query(User.id, type_coerce(users.c.id,
 MyType).label('foo')).\
                     filter(User.id == 7).first()
         eq_(
             row, (7, [7])
         )
 }}}

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2592>
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