[Sqlalchemy-tickets] [sqlalchemy] #2069: eagerload fails if not the whole table is queried

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

#2069: eagerload fails if not the whole table is queried
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 Reporter:  guest   |          Owner:  zzzeek                
     Type:  defect  |         Status:  new                   
 Priority:  medium  |      Milestone:  0.6.7                 
Component:  orm     |       Severity:  no triage selected yet
 Keywords:          |   Status_field:  awaiting triage       
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 My Sa version is 0.6.6. Error:
 {{{
 Traceback (most recent call last):
   File "test.py", line 31, in <module>
     session().query(Forum.id,
 Forum.last_post).options(eagerload('last_post')).all()
   File "/home/florian/.virtualenvs/testing/lib/python2.6/site-
 packages/sqlalchemy/orm/query.py", line 853, in options
     return self._options(False, *args)
   File "<string>", line 1, in <lambda>
   File "/home/florian/.virtualenvs/testing/lib/python2.6/site-
 packages/sqlalchemy/orm/query.py", line 52, in generate
     fn(self, *args[1:], **kw)
   File "/home/florian/.virtualenvs/testing/lib/python2.6/site-
 packages/sqlalchemy/orm/query.py", line 870, in _options
     opt.process_query(self)
   File "/home/florian/.virtualenvs/testing/lib/python2.6/site-
 packages/sqlalchemy/orm/interfaces.py", line 760, in process_query
     self._process(query, True)
   File "/home/florian/.virtualenvs/testing/lib/python2.6/site-
 packages/sqlalchemy/orm/interfaces.py", line 766, in _process
     paths, mappers = self._get_paths(query, raiseerr)
   File "/home/florian/.virtualenvs/testing/lib/python2.6/site-
 packages/sqlalchemy/orm/interfaces.py", line 839, in _get_paths
     path_element = entity.path_entity
 AttributeError: '_ColumnEntity' object has no attribute 'path_entity'
 }}}

 See attached test.

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Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2069>
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