ok scratch using 0.2.8 - try revision 2059, since the eager query
was getting a little too eager.
On Oct 24, 2006, at 4:04 AM, Maciej Szumocki wrote:
>
>
> Michael Bayer wrote:
>> use backref=backref(somename, lazy=False, <otherargs>).
>
> I tried changing backrefs to "backref=backref('middle',
> lazy=False)" in
> the above test script, but
> hit another issue then:
>
> Traceback (most recent call last):
> File "C:\svn\devel\utils\eagerload.py", line 66, in ?
> test(False) # will work fine
> File "C:\svn\devel\utils\eagerload.py", line 57, in test
> obj = session.query(Left).get_by(tag='tag1')
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\query.py", line 95, in
> get_by
> x = self.select_whereclause(self.join_by(*args, **params),
> limit=1)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\query.py", line 256, in
> select_whereclause
> return self._select_statement(statement, params=params)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\query.py", line 372, in
> _select_statement
> return self.execute(statement, params=params, **kwargs)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\query.py", line 304, in
> execute
> return self.instances(result, **kwargs)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\query.py", line 323, in
> instances
> self.mapper._instance(context, row, result)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1177, in
> _instance
> self.populate_instance(context, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1212, in
> populate_instance
> prop.execute(selectcontext, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\interfaces.py", line 77,
> in execute
>
> self._get_context_strategy(selectcontext).process_row(selectcontext,
> instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\strategies.py", line 489,
> in process_row
> instance.__dict__[self.key] = self.mapper._instance(selectcontext,
> decorated_row, None)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1177, in
> _instance
> self.populate_instance(context, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1212, in
> populate_instance
> prop.execute(selectcontext, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\interfaces.py", line 77,
> in execute
>
> self._get_context_strategy(selectcontext).process_row(selectcontext,
> instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\strategies.py", line 511,
> in process_row
> self.mapper._instance(selectcontext, decorated_row, result_list)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1177, in
> _instance
> self.populate_instance(context, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1212, in
> populate_instance
> prop.execute(selectcontext, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\interfaces.py", line 77,
> in execute
>
> self._get_context_strategy(selectcontext).process_row(selectcontext,
> instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\strategies.py", line 489,
> in process_row
> instance.__dict__[self.key] = self.mapper._instance(selectcontext,
> decorated_row, None)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1177, in
> _instance
> self.populate_instance(context, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\mapper.py", line 1212, in
> populate_instance
> prop.execute(selectcontext, instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\interfaces.py", line 77,
> in execute
>
> self._get_context_strategy(selectcontext).process_row(selectcontext,
> instance, row, identitykey, isnew)
> File "c:\svn\sqlalchemy\lib\sqlalchemy\orm\strategies.py", line 505,
> in process_row
> result_list = selectcontext.attributes[(instance, self.key)]
> KeyError: (<__main__.Middle object at 0x00D7A910>, 'left')
>
>
> >
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