On Apr 9, 2007, at 10:06 PM, Huy Do wrote:
>
> Michael Bayer wrote:
>> Particularly for your query you are doing an eager load between
>> "asset" and "location" yet a lot of your query criterion depends upon
>> "location", so in that sense yes you have to use custom SQL, since
>> query() will ne
Michael Bayer wrote:
> On Apr 7, 2007, at 8:11 AM, HD Mail wrote:
>
>
>> Hi,
>>
>> I was after some opinions on the following use of SA.
>>
>> 1. Is there any problems using SA in this way ?
>> 2. Is there better ways of achieving this ?
>>
>>
> ...
>
>> query = db.query(model.Asset
id very much prefer a test case that isnt using Twisted since Ive no
idea what twisted does with threads. it looks like the result proxy
is being shared between threads (which i believe is an effect of the
twisted reactor anyway?).
if youre playing with threads to that degree the "threadlo
Jonathan LaCour wrote:
> What would be the best way to approach using `SELECT ... FOR UPDATE`?
Answering my own question, it appears that there is a `lockmode`
kwarg you can pass when creating a query that supports 'update' and
'update_nowait' as values:
query = session.query(Queue, lockmo
Hi.
I have found some problems with threadlocal strategy and the ResultProxy.
Here is the code that reproduces the problem, Twisted and PostgreSQL are
required.
I'm using SQLAlchemy 0.3.6-1 from Debian Etch.
I don't know if this is a bug of SQLAlchemy.
Is the ResultProxy thread safe?
#! /us
So, at work, we have a particular use case where we need to be able
to do a `SELECT ... FOR UPDATE` in order to lock some rows. In this
particular project we will be using the ORM package and some advanced
data mapping (including multiple table polymorphic inheritance). What
would be the best wa
Suppose I have a table/object called Node that maps to Host by
relation field 'host' on foreign key host_id that may be null. Why
can't I do the following:
Query(Node).select_by(host=None)
When it seems obvious that I mean this:
Query(Node).select_by(Node.c.host_id==None)
I think the former w
Thanks thats brilliant.
Brendan
On 4/9/07, Michael Bayer <[EMAIL PROTECTED]> wrote:
>
>
> On Apr 9, 2007, at 2:38 PM, Brendan Arnold wrote:
>
> >
> > Hi there,
> >
> >> of course theres another view of this, which is why does your
> >> application prefer a "blank" Address entry to None? the lat
On Apr 9, 2007, at 2:38 PM, Brendan Arnold wrote:
>
> Hi there,
>
>> of course theres another view of this, which is why does your
>> application prefer a "blank" Address entry to None? the latter is
>> more semantically correct.
>
>
>
> Name:
> ${person.name}
> City:
> % if person.addre
Hi there,
> of course theres another view of this, which is why does your
> application prefer a "blank" Address entry to None? the latter is
> more semantically correct.
I'm exporting the Person object to a web-template and I prefer the following,
Name:
${person.name}
City:
${person.
On Apr 9, 2007, at 11:25 AM, Brendan Arnold wrote:
> Is there a way I can ensure that an empty instance of my Address
> object is grafted onto the Person object even when corresponding data
> is not found in the people table?
you can either create a layer of abstraction between the actual
map
On Apr 9, 2007, at 11:54 AM, David Anderson wrote:
>
> On 4/9/07, Michael Bayer <[EMAIL PROTECTED]> wrote:
>>> I tried to build this already but I cannot figure out how to assign
>>> the shared connection to a thread. I always get 'No connection
>>> defined'.
>>
>> if youre on py2.4 check out th
we dont have the capability to automatically update ordering columns
when the elements of a list are moved around. if you move the
elements around, you need to execute some step that will update the
index columns (or create a custom collection class that does this for
you).
On Apr 9, 200
Hello,
I'm looking for a feature but couldn't find it in the docs.
I have a tree like structure where the user can specify the order of
the children of a node. In DB lingo, I have a parentId and an index
column. When I load children, they should be ordered by the index.
This seems to be supporte
On 4/9/07, Michael Bayer <[EMAIL PROTECTED]> wrote:
> > I tried to build this already but I cannot figure out how to assign
> > the shared connection to a thread. I always get 'No connection
> > defined'.
>
> if youre on py2.4 check out threading.local().
Just to be clear here, as I'm also having
Hi there,
I have a table of, say, people and another table of addresses. the
people table refers to addresses through a foreign key. It is optional
for each entry in the people table to have an address.
When I construct an object using
assign_mapper(session_context, Person, people_table, propert
On Apr 9, 2007, at 5:18 AM, Koen Bok wrote:
>
> We are building a GUI app, and we were thinking about wrapping
> session.flush() in a thread with a timer that detects a timeout. That
> way we would have better performace and we can generate warnings if
> the connection goes down. Do you guys thi
may be a threadlocal strategy.
On 4/9/07, Koen Bok <[EMAIL PROTECTED]> wrote:
>
>
> We are building a GUI app, and we were thinking about wrapping
> session.flush() in a thread with a timer that detects a timeout. That
> way we would have better performace and we can generate warnings if
> the con
Thanks a lot!! Grin the Django query object actually allows for this
sort of ordering so i just figured SqlAlchemy should allow it as
well :/ But never mind now I know the trick it's super easy to adjust
for it ;)
--~--~-~--~~~---~--~~
You received this message b
We are building a GUI app, and we were thinking about wrapping
session.flush() in a thread with a timer that detects a timeout. That
way we would have better performace and we can generate warnings if
the connection goes down. Do you guys think this is smart, or are
there complications?
I tried t
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