Knut Aksel Røysland wrote:
[snip]
However, an instance of D also needs a reference to an instance of C.
If the appropriate instance of C exists in the database (or
is pending to go into it), I want to pick this one, or
otherwise create a new instance of C.
What I am looking for is
in most cases the DBAPI driver, not SA, is the one returning the
Python datetime objects to you. also like Rick said most DBs are not
going to store an invalid date. so if you arent storing an actual
date, you probably dont want to declare those columns as Date columns.
On Mar 4, 2007,
On Mar 4, 2007, at 9:58 PM, rgravina wrote:
I was wondering if it is possible to specify a primary key manually?
sure, just set whatever column-based attributes you like before
flushing...such as if your table's primary key column is named
some_id, you could say:
myobject.some_id = 7
ok, that solves some things, i won't need those ultra-explicit
selects() now.
The other problem remains:
union's mechanism for corresponding_column() takes ownership of all
columns mentioned in the WHERE, regardless if they are from a table
within the union/join, or in alias of that table.
I need to ping the Mysql database to keep it alive.
Is there a simple way to do this with SA?
-chris
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
sqlalchemy group.
To post to this group, send email to
I need to ping the Mysql database to keep it alive.
Is there a simple way to do this with SA?
Maybe you'd want to have a look at the pool_recycle argument of
create_engine. It'll make the connection pool beeing checked if active, and
potentially recycle the connections if they are too old.
On Mar 5, 2007, at 11:58 AM, svilen wrote:
The other problem remains:
union's mechanism for corresponding_column() takes ownership of all
columns mentioned in the WHERE, regardless if they are from a table
within the union/join, or in alias of that table.
i.e. all columns mentioned in the
in regard to post-2309 revisions and the foreignkey keyword deprecation...
I know this conversation seems to have terminated as of 2/21, but it's
the only thread that was tracing through a problem i'm having. I'm
certain my problem is just one of my own lack of understanding on how
to use
please forward an runnable example test case, preferably a single
file with 200 lines if possible.
you're also making usage of Column instances directly off the
selectable youre mapping, right ?
On Mar 5, 2007, at 1:55 PM, Pete Taylor wrote:
in regard to post-2309 revisions and the
Is there a tool for SA to copy from one database to another? I'm
looking for a simple way to propogate my testing database (sqlite)
from my production database (postgres), so that I can play with actual
data during testing without worrying about what I'm going to mess up.
Is there an automated
yessir, when using selectables i always just use selectobj.c.colname...
i've attached a quick test case, and it throws the same error that my
live code does, so it at least proves i can break things the same way
twice :D i wouldn't be surprised if it's something easy that i'm just
doing wrong,
no problem, that test uncovered a place I could ratchet things down
some more so everybody wins. you want rev 2383.
On Mar 5, 2007, at 3:09 PM, Pete Taylor wrote:
yessir, when using selectables i always just use
selectobj.c.colname...
i've attached a quick test case, and it throws the
I'm wondering if anyone can suggest the best tools or way to make python desktop
db apps using sqlalchemy, and in a manner that is as close to turbogears or
pylons as possible. I would like to be able to offer desktop internal apps that
playfair with TG based sites. I use wxWidgets already in
there is append_from()
joins know how to find their components that are already in the
selectable and replace them.
On Mar 5, 2007, at 4:38 PM, Dennis wrote:
I'm playing around with dynamically building a query. I can append
columns, where clauses, from objects etc... but what about the
Actually, I'm still having a problem because the primary object is
already a join and the next object that I append gets listed twice.
Example
sel=select([a,b], from_obj=[a.outerjoin(b)])
sel.append( a.outerjoin(c,somecriteriaforthejoin))
str(sel)
SELECT ,,, FROM a LEFT OUTER JOIN b ON , a
I did find a slight hack:
query.append_from (
query.froms._list[0].outerjoin( etc ... ) )
-Dennis
On Mar 5, 3:54 pm, Dennis [EMAIL PROTECTED] wrote:
Actually, I'm still having a problem because the primary object is
already a join and the next object that I append gets listed twice.
The fix for ticket #500 breaks a pattern I've been using.
It's most likely an anti-pattern, but I don't see a way to get what I want
in SA otherwise.
I've got a series of entities
class Person():
pass
class Manager(Person):
def __init__(self):
# do manager stuff
class
I'm trying to track down the syntax for using a 'like' clause with sql
soup. I'm trying to do something like
select book_sku from books where book_sku like 'abcd%';
best i can tell, my syntax should look something like:
skus = db.books.select(book_skus.like('abcd%'))
but I'm getting an
18 matches
Mail list logo
