`select_entity_from` finally did the trick. I did
qry =
session.query(child_query).select_entity_from(parent_query).join(child_query,
child_query.c.parent_id==parent_query.c.id)
Thanks a lot for your help!
On Wednesday, September 4, 2013 2:19:32 PM UTC+10, Michael Bayer wrote:
On Sep 3,
I've still got a question...
# This is creating an identity map (parent id - children list), but how
do we
# know the `parent.id` at this point? The query hasn't been issued yet...
collections = dict((k, list(v)) for k, v in groupby(
child_q,
Never mind. I think I know how this works now. I didn't realise that
`child_q` gets executed as soon as it's iterated (despite your comment).
Also, the `child.parent_id` is used as key to fill the dict...
On Thursday, September 12, 2013 2:54:47 PM UTC+10, gbr wrote:
I've still got a
Thanks. That's quite an interesting piece of code. There's a bit of magic
happening in this code and it's not quite compatible for my use case (use
of queries instead of tables, no ORM mapping), so allow me to ask some
questions. I've annotated the code, so perhaps you can correct any of my
On Sep 3, 2013, at 11:03 PM, gbr doubl...@directbox.com wrote:
Thanks. That's quite an interesting piece of code. There's a bit of magic
happening in this code and it's not quite compatible for my use case (use of
queries instead of tables, no ORM mapping), so allow me to ask some
On Aug 31, 2013, at 7:33 PM, gbr doubl...@directbox.com wrote:
On Sunday, September 1, 2013 8:19:24 AM UTC+10, Michael Bayer wrote:
Let me add a bit of information. I assumed the behaviour would be the same in
ORM (actually, when looking at the docs again I saw it's actually called
On Sunday, September 1, 2013 8:19:24 AM UTC+10, Michael Bayer wrote:
On Aug 31, 2013, at 1:16 AM, gbr doub...@directbox.com javascript:
wrote:
Could anyone provide some suggestions on where to look in the SQLA code
(or even an example, or some general thoughts) for how to perform a
Could anyone provide some suggestions on where to look in the SQLA code (or
even an example, or some general thoughts) for how to perform a
`joinedload` as the ORM does it for Core tables (or actually an already
executed query which has unresolved references which I'd like to load in a
