pgrade to SQLAlchemy 1.3.23 first to make sure it hasn't been fixed.
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>
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> On Mon, Mar 8, 2021, at 1:09 PM, Gmoney wrote:
>
> On python 3.7 SQLAlchemy 1.3.13
> I'm running into an issue when doing a session.refresh(orm_object) where
> for certain objects it throws an exception
On python 3.7 SQLAlchemy 1.3.13
I'm running into an issue when doing a session.refresh(orm_object) where
for certain objects it throws an exception because in line 709 of
orm/loading.py, the 'state.load_path' is an empty tuple. Attached the
relevant snippet of the stack dump below.
This was
by
itself, it has the same issues.
Think I'm getting it... thanks so much for the explanation.
On Thursday, December 17, 2020 at 11:01:17 AM UTC-5 Gmoney wrote:
> I think I follow you... definitely about how it would be done in SQL and
> if constructing a query manually. I think I wasn't
ared to
> our pure SQL version that would use JOINs instead of correlated subqueries,
> however, I would suggest running a query plan on your target database to
> see if it is in fact an issue.
>
>
>
>
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>
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> On Thu, Dec 17, 2020, at 10:21 AM, Gmoney wrote:
>
Trying to understand the right way to define a hybridproperty.expression
that references an 'sub-attribute' of a relationship attribute. I have
done it in another case by using the class name of the relationship
attribute (Tire.weight vs. cls.tire.weight) and that's worked OK. But it
begs
ut I'm not sure this would make a good feature or not because it adds more
> layers of magic to a concept that is already proving to be confusing.
>
> let me know if that makes sense.
>
>
> On Mon, Jun 3, 2019, at 5:06 PM, Gmoney wrote:
>
> I thought I figured out another clever w
tely going to work. Any chance
I'm just missing a step that could make that method work? I see the
'.add_entity' option but that didn't seem to help and kind of defeats the
purpose of my simplicity goal anyway.
On Monday, June 3, 2019 at 3:57:18 PM UTC-4, Gmoney wrote:
>
> I think it's
hey are both listed at
> https://docs.sqlalchemy.org/en/13/orm/mapped_sql_expr.html.
> <https://docs.sqlalchemy.org/en/13/orm/mapped_sql_expr.html>
>
> let me know if that makes sense.
>
> On Mon, Jun 3, 2019, at 2:17 PM, Gmoney wrote:
>
> I should at least clarify that
I should at least clarify that I have @hybrid_test.expression in place for
that property and it works when I just do the base 'get me everything'
query.
On Monday, June 3, 2019 at 2:13:17 PM UTC-4, Gmoney wrote:
>
> I'm trying to use load_only and was able to get a really basic e
I'm trying to use load_only and was able to get a really basic example to
work. My problem is that once I try to load one of my hybrid properties,
it fails.
This code works for any number of basic Column properties but fails once I
add the hybrid property:
columns = (Task.msg_id,
Ah I'm sorry it does work how I expected... It was being changed after the
query elsewhere on my end.
--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
To post example code, please provide an MCVE: Minimal, Complete, and Verifiable
Example. See
I have some relationships setup that are based on outer joins. When the
result of the outer join is NULL (ie. it won't join), instead of having a
None for that field, I get an object with all None values for that field.
Is this as-designed? I can kind of understand why... but the way i"m
We have some elaborate logic in a a @hybrid_property and
@.expression that I'm keen on setting up some testing to
ensure that both cases return the same value. I'm having some difficulty
sorting out when each version is used at any given time though.
@hybrid_property
def
without flushing, so I can interrogate the
object and see that that FK id was changed (has a history).
On Wednesday, January 16, 2019 at 4:18:36 PM UTC-5, Gmoney wrote:
>
> I was having a heck of confusing time debugging some code where I was
> trying to determine what attrs on an OR
I was having a heck of confusing time debugging some code where I was
trying to determine what attrs on an ORM changed prior to committing it.
Every time in my debugger I'd be getting different results (w/r to
History). I finally realized that autoflush was enabled, and now that I
disabled
, Mike Bayer wrote:
>
> every case is now listed out for improved error reporting in:
>
> https://github.com/sqlalchemy/sqlalchemy/issues/4433
>
>
> On Wed, Jan 9, 2019 at 12:21 AM Mike Bayer > wrote:
> >
> > On Tue, Jan 8, 2019 at 4:16 PM Gmoney >
Unable to limit the columns returned from a query using .load_only or
.with_entities. I feel like I'm missing a key concept here, and could use
some guidance.
One column of interest is a relationship - which I'm guessing is my problem.
class Task(Base):
__tablename__ = 'TASK'
id =
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