thanks. I tried this approach and it is working much better now.
On Tuesday, March 6, 2012 9:55:11 PM UTC, Michael Bayer wrote:
On Mar 6, 2012, at 4:02 PM, Darren wrote:
Also, is this the preferred way to scale values?
I'd probably use @hybrid_property for this, that way you can
Hi,
In my class definition I use a column_property:
clp_price = column_property(Column(clp_price, BigInteger) / scale)
The basic idea is that I wanted to apply a scale when the column is
retrieved from the database.
However, I noticed that the underlying SQL does not prefix this column name
= cond2_clause
Because the and_ and or_ methods special case the single argument case (just
passing them through), the simplest thing I've found to work is the
and_(True, True) construct. But that's exceedingly hacky imo.
Thanks in advance!
--Darren
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The MySQL documentation has the
followinghttp://dev.mysql.com/doc/refman/5.1/en/update.htmlexample
syntax for multi-table UPDATES:
UPDATE items, month SET items.price=month.price
WHERE items.id=month.id;
Is there a way to generate that via SQLAlchemy? The closest thing to it I
could find in the
, especially for replication at the
object layer.
So is it true that this cannot currently be done with sqlalchemy? I have
been reading the docs, but no clues yet.
On Fri, 2009-01-16 at 16:53 -0500, Darren Govoni wrote:
Hi,
I have an object (with references) I get from a session on database
the hierarchy-copying yourself - even if
moving one object (alone) from session to session succeeds somehow.
On Saturday 17 January 2009 14:47:41 Darren Govoni wrote:
After some further experimenting with this, it seems I cannot take
a mapped object I retrieved from one session and save
u'll have to do the hierarchy-copying yourself - even if
moving one object (alone) from session to session succeeds somehow.
On Saturday 17 January 2009 14:47:41 Darren Govoni wrote:
After some further experimenting with this, it seems I cannot take
a mapped object I retrieved from one
Hi,
I have an object (with references) I get from a session on database A
and I want to copy it (deep copy) to database B. I tried expunging it
from the first session and adding it to the second. What's the best
practice to do this?
thanks!
Darren
query only perform the update on the limited results
of the query?
Darren
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AM, Darren Govoni wrote:
Hi,
I have 2 records in the database. I made an expression to update only
1 record, but all are getting updated.
works=session.query(Work).filter(tnow-
Work.takentimedelta(minutes=15))
.filter
(Work
.completed==None).limit(1).with_lockmode(mode
.
B finds 1 row where FOO=NULL and sets FOO=B.
B exits.
Does that help clarify?
thank you.
On Sun, 2009-01-11 at 11:33 -0500, Michael Bayer wrote:
On Jan 11, 2009, at 11:18 AM, Darren Govoni wrote:
Thank you,
So I changed my query to a select/for update. then re-added the
updated
, Michael Bayer wrote:
On Jan 11, 2009, at 11:40 AM, Darren Govoni wrote:
Sorry for the haze. I'm using PostgreSQL and am checking their docs on
isolation to see that it is consistent with SA.
but here is a simplified example.
I have 2 rows in the database with 1 column FOO. Both rows
Hi MikeCo,
I tried your example, and got this error from SA 0.5.
ValueError: need more than 0 values to unpack
Darren
On Fri, 2009-01-09 at 20:33 -0800, MikeCo wrote:
from sqlalchemy import *
from sqlalchemy.orm import *
from sqlalchemy.ext.declarative import declarative_base
dbname
Ahhh, looks like I'm on rc4. Let me try final and see.
On Sun, 2009-01-11 at 13:10 -0500, Michael Bayer wrote:
0.5.0 final ?
On Jan 11, 2009, at 12:21 PM, Darren Govoni wrote:
Hi MikeCo,
I tried your example, and got this error from SA 0.5.
ValueError: need more than 0 values
()
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On Jan 9, 10:03 pm, Darren Govoni dar...@ontrenet.com wrote:
Hi,
Thanks for the response. I'm still fairly new to SA but am very
impressed with this package!
I tried a variety of combinations of mappings. If I use just the
parent_id,parent it would seem to make sense
Hi,
Thanks for the response. I'm still fairly new to SA but am very
impressed with this package!
I tried a variety of combinations of mappings. If I use just the
parent_id,parent it would seem to make sense logically if my children
only have one parent.
The tables generate fine. But when I
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