Hi,
I'm using scoped_session with PostgreSQL to run multiple threads, each
thread creating a table. However, I'm getting some pretty weird and
inconsistent errors (segfaults from Python with some very peculiar
errors), and I was wondering if my usage was at fault.
The program has a serial
I'm using SQLAlchemy 0.6.3 on Python 2.6 (win32)
I have a class, Efforts, which has many splits (time and distance and
some other fluff), so for each training effort, there can be one or
more splits. It has a few other relationships as well, but this is
the important one, or at least, the one
Addendum: the types of error I'm seeing includes SQLA trying to execute
notices from the PG server eg. one of the tracebacks I'm seeing is:
#0 PyObject_Malloc (nbytes=86) at ../Objects/obmalloc.c:756
#1 0x00455eb5 in PyString_FromString (str=0x2de0ece0 WARNING:
there is no
I've found a strange behaviour when using multiple sessions: A
committed change to an object in one session does not get reflected in
the other session, even after a session.expire_all() (or expire() or
refresh() on the object. In fact, even an explicit query does not
retrieve the changed data.
Carl,
the formatting got a bit messed up but if I read your definition
correctly you defined the relation as 'splits'. So you'd want to write
trainingEffor.splits (lower case 's' in splits).
-sas
On Aug 12, 9:20 am, Bleve carl.i.bre...@gmail.com wrote:
I'm using SQLAlchemy 0.6.3 on Python 2.6
Another reply to my own message, sorry.
Another thing I might be doing wrong is my usage of MetaData.
The code I have looks like
db = create_engine(self.dbstring)
meta = self.table_dict['metadata']
meta.bind = db
meta.create_all()
Session = scoped_session(sessionmaker())
On Aug 12, 2010, at 7:36 AM, Erich Eder wrote:
I've found a strange behaviour when using multiple sessions: A
committed change to an object in one session does not get reflected in
the other session, even after a session.expire_all() (or expire() or
refresh() on the object. In fact, even an
On 12/08/2010 10:03 PM, Sven A. Schmidt wrote:
Carl,
the formatting got a bit messed up but if I read your definition
correctly you defined the relation as 'splits'. So you'd want to write
trainingEffor.splits (lower case 's' in splits).
heh! Case sensitivity bites!
Thank you
Carl
--
On Aug 12, 2010, at 5:10 AM, Faheem Mitha wrote:
Hi,
I'm using scoped_session with PostgreSQL to run multiple threads, each thread
creating a table.
Its generally a poor application practice for an application to need new
permanent tables on the fly. I think reddit's application
On Thu, 12 Aug 2010 08:47:33 -0400, Michael Bayer mike...@zzzcomputing.com
wrote:
On Aug 12, 2010, at 5:10 AM, Faheem Mitha wrote:
Hi,
I'm using scoped_session with PostgreSQL to run multiple threads, each
thread creating a table.
Its generally a poor application practice for an
On Aug 12, 2010, at 9:25 AM, Faheem Mitha wrote:
Hi Mike,
Thanks for the response, but I don't follow.
When you say multiple threads are hitting the session you have
above, which session are you referring to? There is more than one
object above that could be called a session. Ie.
I
On Thu, 12 Aug 2010 09:44:04 -0400, Michael Bayer mike...@zzzcomputing.com
wrote:
On Aug 12, 2010, at 9:25 AM, Faheem Mitha wrote:
Hi Mike,
Thanks for the response, but I don't follow.
When you say multiple threads are hitting the session you have
above, which session are you
On Thu, 12 Aug 2010 09:44:04 -0400, Michael Bayer mike...@zzzcomputing.com
wrote:
On Aug 12, 2010, at 9:25 AM, Faheem Mitha wrote:
Hi Mike,
Thanks for the response, but I don't follow.
When you say multiple threads are hitting the session you have
above, which session are you
On Aug 12, 2010, at 11:47 AM, Faheem Mitha wrote:
On Thu, 12 Aug 2010 09:44:04 -0400, Michael Bayer mike...@zzzcomputing.com
wrote:
On Aug 12, 2010, at 9:25 AM, Faheem Mitha wrote:
Hi Mike,
Thanks for the response, but I don't follow.
When you say multiple threads are hitting
On Jul 30, 7:25 am, Kent k...@retailarchitects.com wrote:
Also, I'm afraid the CAST(NULL AS VARCHAR(255)) doesn't work with
Oracle 8, but I don't have access to Oracle 8 at the moment. I'm
afraid you need TO_NUMBER(NULL) or TO_CHAR(NULL), etc...
I'm wrong, CAST seems to work fine on Oracle
Hello,
I'm trying to link one table to itself. I have media groups which can
contain more media group. I created a relation many to many:
media_group_groups = Table(
media_group_groups,
metadata,
Column(groupA_id,
[This message has also been posted.]
On Thu, 12 Aug 2010 12:47:37 -0400, Michael Bayer mike...@zzzcomputing.com
wrote:
On Aug 12, 2010, at 11:47 AM, Faheem Mitha wrote:
On Thu, 12 Aug 2010 09:44:04 -0400, Michael Bayer mike...@zzzcomputing.com
wrote:
On Aug 12, 2010, at 9:25 AM, Faheem
On Aug 12, 2010, at 2:41 PM, Faheem Mitha wrote:
objects among threads, they reference their owning session in order
to load additional state. If you pass objects between threads you
should merge() them into the current thread's session first, then
use that result.
I see. That's very
I'm still working on the solution. I've found out some stuff in
internet. I guess I'm close to, but I haven't got it yet. I'm using
this for the relation:
mediaGroups = relationship(MediaGroup,
secondary=media_group_groups, order_by=MediaGroup.title,
backref='media_groups', foreign_keys =
On Aug 12, 2010, at 5:09 PM, Michael Bayer wrote:
On Aug 12, 2010, at 4:58 PM, Alvaro Reinoso wrote:
I'm still working on the solution. I've found out some stuff in
internet. I guess I'm close to, but I haven't got it yet. I'm using
this for the relation:
mediaGroups =
Hi all --
I am relatively new to sqlalchemy and am in the midst of building a
generic vertical dictionary collection base class that can be
subclassed and extended in different ways. I began by examining the
dictlike.py and dictlike-polymorphic SQLalchemy examples and
extended them into a class
I'm trying that, but I got different error:
Could not determine relationship direction for primaryjoin condition
'users.id = :id_1', on relationship User.mediaGroups. Specify the
'foreign_keys' argument to indicate which columns on the relationship
are foreign.
As I can see, the error is related
Hi there,
I'm exploring the bidirectional adjacency list pattern described in
the documentation (the scalar relationship is intentional):
Person.child = relationship(
Person,
uselist=False,
backref=backref('parent', remote_side=Person.id)
)
However, I'd like to add an additional
Thanks for pointing me there, Michael. Wasn't aware of that InnoDB
feature. Make all sense, now.
On Aug 13, 12:37 am, Michael Bayer mike...@zzzcomputing.com wrote:
On Aug 12, 2010, at 7:36 AM, Erich Eder wrote:
I've found a strange behaviour when using multiple sessions: A
committed change
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