On Wednesday 22 April 2015 14:17:02 Mike Bayer wrote:
On 4/22/15 12:45 AM, Oliver Palmer wrote:
We're using a Flask extension to work with sqlalchemy called
flask-sqlalchemy. The engine is usually not directly exposed but echo
can be enabled using a configuration var
On Monday 20 April 2015 13:24:49 Michael Bayer wrote:
On Apr 20, 2015, at 12:56 PM, Guido Winkelmann guido@ambient-
entertainment.de wrote:
On Monday 20 April 2015 11:23:06 Mike Bayer wrote:
On 4/20/15 8:09 AM, Guido Winkelmann wrote:
On MySQL/PostgreSQL, this line fails:
Apparently
On Tuesday 21 April 2015 09:43:51 Mike Bayer wrote:
On 4/21/15 6:45 AM, Guido Winkelmann wrote:
On Monday 20 April 2015 21:57:40 Oliver Palmer wrote:
[...]
So I got to thinking about what we're doing differently with sqlite and
this bit of code comes to mind:
# sqlite specific
On Monday 20 April 2015 19:22:36 Mike Bayer wrote:
On 4/20/15 12:56 PM, Guido Winkelmann wrote:
I just tested, the problem is still present in the current master
(bd61e7a3287079cf742f4df698bfe3628c090522 from github). Guido W.
can you please try current master at least
On Monday 20 April 2015 21:57:40 Oliver Palmer wrote:
[...]
So I got to thinking about what we're doing differently with sqlite and
this bit of code comes to mind:
# sqlite specific configuration for development
if db.engine.name == sqlite:
@event.listens_for(Engine, connect)
Hi,
Have there been any non-backwards-compatible changes in SQLAlchemy 1.0
compared to 0.9.9?
We are seeing a lot of sudden breakage in our unit tests when switching to
SQLAlchemy 1.0 from 0.9.9. Tests that worked fine before suddenly fail
across the board.
Here's a an example of a test
On Monday 20 April 2015 11:23:06 Mike Bayer wrote:
On 4/20/15 8:09 AM, Guido Winkelmann wrote:
[...]
On sqlite, drop_all() seems to fail to get the order of table drops
right, and consequently runs into a referential integrity error.
If you can post a reproducible issue, that's what I can work
([test]).where(test.c.finished_on + cast(‘1 sec’, INTERVAL) *
test.c.wait func.NOW())
Guido Winkelmann gu...@ambient-entertainment.de javascript: wrote:
Hi,
How can I add one column containing integer values (NULL allowed),
treating
them as seconds, to another column from
Hi,
How can I add one column containing integer values (NULL allowed), treating
them as seconds, to another column from the same table containing datetime
values and compare the result to the current time?
I have a table with a datetime column finished_on and in int column wait.
Once wait
On Friday 28 November 2014 16:38:47 Michael Bayer wrote:
On Nov 28, 2014, at 9:28 AM, Guido Winkelmann
gu...@ambient-entertainment.de wrote:
[...]
The problem is, in SQLAlchemy, at least with a PostgreSQL+psycopg2 backend,
the exception I get when that happens is InvalidRequestError
Hi,
What's the best strategy for retrying failed transactions when using
SQLAlchemy?
Sometimes, transactions fail on commit, through no fault of their own,
simply because another concurrent but conflicting transaction finished
slightly before them. The commonly accepted best practice seems
On Monday 17 November 2014 14:44:02 Michael Bayer wrote:
On Nov 17, 2014, at 1:55 PM, Guido Winkelmann
gu...@ambient-entertainment.de wrote:
Am Montag, 17. November 2014 16:25:54 UTC+1 schrieb Michael Bayer:
On Nov 17, 2014, at 7:37 AM, Guido Winkelmann
gu...@ambient-entertainment.de
Hi,
How can I go about having a cross-platform compatible compound unique
constraint over two columns where there can be only one record with NULL in
one column and a given value in the other?
I want something like this:
UniqueConstraint(parent_id, name)
except parent_id is nullable, and I
Am Montag, 17. November 2014 16:25:54 UTC+1 schrieb Michael Bayer:
On Nov 17, 2014, at 7:37 AM, Guido Winkelmann
gu...@ambient-entertainment.de javascript: wrote:
Hi,
How can I go about having a cross-platform compatible compound unique
constraint over two columns where there can
Hi,
How can I put a subquery that yields exactly one value inside the select part
of the query without joining the subquery like another table?
I have a table jobs and a table tasks. Every job has got any arbitrary number
(zero or more) of tasks. Tasks can be in one of four states: queued,
Hi,
Reading through the docs, I could not find out how to tell the cardinality
of an object of type sqlalchemy.orm.properties.RelationshipProperty, i.e.
whether it is one-to-many, many-to-one or many-to-many. Mostly, I just
need to know whether a relationship refers to just one object or a
Am Donnerstag, 13. Februar 2014 15:46:31 UTC+1 schrieb Michael Bayer:
On Feb 13, 2014, at 6:23 AM, Guido Winkelmann
gu...@ambient-entertainment.de javascript: wrote:
Hi,
Reading through the docs, I could not find out how to tell the
cardinality of an object of type
Am Donnerstag, 13. Februar 2014 18:01:27 UTC+1 schrieb Michael Bayer:
On Feb 13, 2014, at 11:46 AM, Guido Winkelmann
gu...@ambient-entertainment.de javascript: wrote:
Am Donnerstag, 13. Februar 2014 15:46:31 UTC+1 schrieb Michael Bayer:
On Feb 13, 2014, at 6:23 AM, Guido Winkelmann
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