I've had a few situations recently when I've been optimizing some
queries that I have been making through the ORM (via Elixir),
and I've wanted to take advantage of deferred columns. However,
I've found that defining which columns get deferred is often more
appropriate to do at *query* time, not
On Sat, Mar 29, 2008 at 10:50 PM, Randall Smith [EMAIL PROTECTED] wrote:
Paul Johnston wrote:
Hi,
eng =
sqlalchemy.create_engine(mssql:///?dsn=mydsn,UID=myusername,PWD=mypass,module=pyodbc)
Try this:
eng =
So what you are saying here is that sqlalchemy will figure out what driver
to use? pyodbc or other?
Sort of. Attempts are made to import appropriate modules until one doesn't
fail. The order is: [pyodbc, mssql, adodbapi]
I have tried this with svn version and I get
traceback snipped:
I've
The continuing adventures of a newbie SA user...
Could anyone tell me if there is a simple way of setting up a query
which takes an object as an argument and checks for the existence of
an object in the database?
I know I can construct a query hard coding attributes to filter on,
but I'm sure
On Mon, Mar 31, 2008 at 9:53 AM, Rick Morrison [EMAIL PROTECTED] wrote:
So what you are saying here is that sqlalchemy will figure out what driver
to use? pyodbc or other?
Sort of. Attempts are made to import appropriate modules until one doesn't
fail. The order is: [pyodbc, mssql,
Lukasz Szybalski wrote:
On Mon, Mar 31, 2008 at 9:53 AM, Rick Morrison [EMAIL PROTECTED] wrote:
So what you are saying here is that sqlalchemy will figure out what driver
to use? pyodbc or other?
Sort of. Attempts are made to import appropriate modules until one doesn't
fail. The order is:
On Mar 31, 2008, at 12:02 PM, pyplexed wrote:
The continuing adventures of a newbie SA user...
Could anyone tell me if there is a simple way of setting up a query
which takes an object as an argument and checks for the existence of
an object in the database?
by primary key ? assuming
On Mar 31, 2008, at 12:40 AM, Nicholas Riley wrote:
Hi,
I just tried out SQLAlchemy 0.4.4 on a simple project - the front end
for a vending machine. It uses two MySQL database connections. I've
used the session/transaction facilities so I can use SQLAlchemy's two-
phase commit to
On Mar 31, 2008, at 9:41 AM, Jonathan LaCour wrote:
I've had a few situations recently when I've been optimizing some
queries that I have been making through the ORM (via Elixir),
and I've wanted to take advantage of deferred columns. However,
I've found that defining which columns get
On Mon, Mar 31, 2008 at 12:21 PM, Rick Morrison [EMAIL PROTECTED] wrote:
It looks to me as if you have unixodbc installed, but don't have a SQL
Server driver installed, or it's named differently.
Unixodbc drivers are here:
http://www.unixodbc.org/drivers.html
I'm not really up on my
Michael Bayer wrote:
I'll give you the private way to do it if you'd like to play with
it
Cool. This will be helpful to play with for now...
since the query already can do this, it seems harmless enough to
create a load_only() MapperOption. However, it seems in a way to
be fundamentally
You didn't say how am I supposed to use it in create engine?
http://www.sqlalchemy.org/docs/04/dbengine.html#dbengine_options
Anyway. I went into sqlalchemy/databases/mssql.py
changed the line 791 to:self.drivername = params.get('driver', 'TDS')
but I still get the:
OK,
I've first time tried so set up a Many To One relation in one table.
After flushing, the foreign key reference is set on the wrong side,
and I failed to tell the mapper what I want.
The example has a Man table where each son has a reference to its
father:
++
class
On Mar 31, 1:34 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On Mar 31, 2008, at 12:40 AM, Nicholas Riley wrote:
You shouldn't be doing anything with the SessionTransaction
explicitly, this is a backwards compatibility thing from 0.3. Use
only begin()/commit() on the Session itself. When
On Mar 31, 2008, at 3:54 PM, Nicholas Riley wrote:
I tried setting the isolation level explicitly, but it didn't help:
In [29]: self.session.close()
In [30]: self.db._acm.execute('SET SESSION TRANSACTION ISOLATION LEVEL
READ COMMITTED')
In [31]: self.db._sucrose.execute('SET SESSION
On Mar 31, 2008, at 3:33 PM, Nebur wrote:
I've first time tried so set up a Many To One relation in one table.
After flushing, the foreign key reference is set on the wrong side,
and I failed to tell the mapper what I want.
The example has a Man table where each son has a reference to its
I've been using
http://wiki.pylonshq.com/display/pylonsdocs/Using+SQLAlchemy+with+Pylons
to help with the migration because the migration tutorial on
SQLAlchemy (http://www.sqlalchemy.org/docs/04/
intro.html#overview_migration) only included a partial list of things
that I would need to change
On Mar 31, 2008, at 4:18 PM, johnnyice wrote:
I've been using
http://wiki.pylonshq.com/display/pylonsdocs/Using+SQLAlchemy+with+Pylons
to help with the migration because the migration tutorial on
SQLAlchemy (http://www.sqlalchemy.org/docs/04/
intro.html#overview_migration) only included
On Mar 31, 3:07 pm, Michael Bayer [EMAIL PROTECTED] wrote:
The other thing you're probably hitting here is that the Session is
going to cache everything it loads until you clear out its data
(session.clear()) , or expire the data that it has loaded
(session.expire_all()). This is why
Thank you for pointing me to the problem (that fast !!)
This was wrong indeed. It is clearified now, and working well.
Ruben
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On Mon, Mar 31, 2008 at 2:07 PM, Rick Morrison [EMAIL PROTECTED] wrote:
You didn't say how am I supposed to use it in create engine?
http://www.sqlalchemy.org/docs/04/dbengine.html#dbengine_options
Anyway. I went into sqlalchemy/databases/mssql.py
changed the line 791 to:
What do you recommend instead of scopedsession?
On Mar 31, 1:22 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On Mar 31, 2008, at 4:18 PM, johnnyice wrote:
I've been
usinghttp://wiki.pylonshq.com/display/pylonsdocs/Using+SQLAlchemy+with+Pylons
to help with the migration because the
I think I remember a Port= in the ODBC connection string.
...would you please try this format on line 816:
connectors.append('Server=%s;Port=%d' % (keys.get('host'), keys.get
('port')))
...I'll try it on Windows here.
Rick
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...I'll try it on Windows here.
Update: it seems to work fine on Windows.
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On Mon, Mar 31, 2008 at 3:50 PM, Rick Morrison [EMAIL PROTECTED] wrote:
I think I remember a Port= in the ODBC connection string.
...would you please try this format on line 816:
connectors.append('Server=%s;Port=%d' % (keys.get('host'),
keys.get('port')))
You are correct:
Port=
fixes it.
On Mar 31, 2008, at 4:49 PM, johnnyice wrote:
What do you recommend instead of scopedsession?
definitely use ScopedSession to manage your Sessions on a thread-local
basis.Im talking about a specific feature of SS called
ScopedSession.mapper, described here:
On Mar 29, 8:11 am, Lukasz Szybalski [EMAIL PROTECTED] wrote:
On Fri, Mar 28, 2008 at 10:54 PM, Graham Dumpleton
[EMAIL PROTECTED] wrote:
On Mar 29, 11:02 am, Michael Bayer [EMAIL PROTECTED] wrote:
On Mar 28, 2008, at 7:56 PM, john spurling wrote:
I added debugging to get
Hello everybody,
I'm wondering if there is a standard way of doing something like the
following:
masters = Table('masters', meta,
Column('id', Integer, primary_key=True),
Column('name', String, unique, nullable=False)
)
details = Table('details', meta,
Column('id', Integer,
On Mar 31, 2008, at 11:37 PM, askel wrote:
Hello everybody,
I'm wondering if there is a standard way of doing something like the
following:
masters = Table('masters', meta,
Column('id', Integer, primary_key=True),
Column('name', String, unique, nullable=False)
)
details =
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