The right usage of append_whereclause() seems to be:
s = sometable.select()
s.append_whereclause(col==val)
etc.
I just had a kind of tough time recently when I actually assigned the
result instead:
s = sometable.select()
s = s.append_whereclause(col==val)
Granted, this was a mistake I
So far I've been having a great time with generative query-building
methods... build a query, filter it, order it, etc...
Is there a way to, uh, de-generate a query? E.g.,
q0 = session.query(someclass)
q1 = q.filter(col == value)
q2 = q.filter(othercol == othervalue)
# all of the above works
On May 30, 2:06 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On May 30, 2007, at 4:50 PM, Eric Ongerth wrote:
Is there a way to, uh, de-generate a query? E.g.,
...
As it stands now, this is not actually difficult to do: I just store a
set of filters that have been added so far, and when
I'm attempting to switch from sqlite to postgresql (i want to make use
of postgresql's enforcement of foreign key constraints, among other
features) and having a tough time getting anywhere with the psycopg2
adapter.
psycopg's website is down and was down the last two times I looked for
it over
Just to get this into the searchable domain in case anyone else runs
into the same errors...
sqlalchemy docs indicate that sqlite parses foreign key constraints,
but does not enforce them. So far, so good. But it doesn't mention
(nor could I find any reference to this in sqlite3's own docs)
On May 28, 12:03 am, I wrote:
I'm attempting to switch from sqlite to postgresql (i want to make use
of postgresql's enforcement of foreign key constraints, among other
features) and having a tough time getting anywhere with the psycopg2
adapter.
Federico the developer answered my email
On May 28, 1:45 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On May 28, 2007, at 3:28 AM, Eric Ongerth wrote:
Obviously a minor concern, and why am I even bothering? Because i'm
stuck in sqlite until I can get psycopg2 working in order to migrate
to postgresql so I can actually USE
I'm curious about the use_alter keyword argument for
ForeignKeyConstraint. It's there in the docs but with no explanation,
and I've been tracking it through the sources but (forgive me) not
quite figuring out exactly what it's doing.
--~--~-~--~~~---~--~~
You
I'm stumped on what sounds like a simple question, but haven't been
able to find an answer yet because the words class, table, and
various forms of mapper/mapped/mapping are so common.
If I've got a class, a table, and a mapper that connects the two...
and then somewhere later on, some function
To amplify/clarify, what I was hoping I'd find was something like the
following behavior:
m = class_mapper(cls)
t = m.local_table
t.mapper is m
True
t.mapper.class_ is cls
True
...But the table doesn't have that method mapper on it. I suppose
that's because a table can be mapped more than
On May 24, 9:06 am, Michael Bayer [EMAIL PROTECTED] wrote:
On May 24, 2007, at 11:34 AM, Eric Ongerth wrote:
I know how to get from a class to a table:
m = class_mapper(cls)
t = m.local_table
But I haven't been able to go in the other direction.
theres no registry of tables- mappers
On May 24, 10:39 am, Michael Bayer [EMAIL PROTECTED] wrote:
ill observe that
the requests for how do i find the X object given the Y object
correspond to applications that are dealing with tables/classes
anonymously, like people building generic GUIs for traversing a data
model.
That's
On Apr 3, 2:41 am, Disrupt07 [EMAIL PROTECTED] wrote:
It would be nice if SQLAlchemy has something to constrain distinct
values on save() or flush().
You might be interested in this:
http://www.sqlalchemy.org/trac/wiki/UsageRecipes/UniqueObject
On May 24, 1:31 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On May 24, 2007, at 2:11 PM, Eric Ongerth wrote:
Is there a shortcut to that longer way around?
not at the moment. the tables/columns arent optimized for traversal
right now.
Thanks -- I can certainly accept that.
So then, just
On May 24, 3:10 pm, Michael Bayer [EMAIL PROTECTED] wrote:
uh well lets look at the source code. Column.unique *is* assigned if
you send the unique keyword argument. it transforms the unique
keyword argument into a UniqueConstraint when the Column is assigned
to its Table via _set_parent.
Please note at the bottom of this doc section:
http://www.sqlalchemy.org/docs/plugins.html#plugins_associationproxy
... just before the end of the associationproxy section and before the
beginning of the orderinglist section, there's a chopped off sentence:
The association_proxy function is
Cool... thanks.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
sqlalchemy group.
To post to this group, send email to sqlalchemy@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For
and now both SPE and winpdb have no
trouble finding SQLAlchemy sources for me.
Thanks to all respondents.
On May 14, 7:31 am, Michael Bayer [EMAIL PROTECTED] wrote:
On May 13, 2007, at 11:52 PM, Eric Ongerth wrote:
Incidentally, the same problem is happening when using SPE as my
editor
the egg and get a SVN checkout of
SQLAlchemy. Then copy the lib/sqlalchemy directory into your
site-packages directory (as sqlalchemy; omit the lib/). This
bypasses the egg mechanisms, which /may/ help.
Paul
Eric Ongerth wrote:
I'm using winpdb 1.1.2 to debug my sqlalchemy/wxPython app
101 - 119 of 119 matches
Mail list logo
