Hi all!
Why I get unbound method execute() must be called with Session
instance as first argument (got Select instance instead) with
following code?
from twisted.internet import reactor, task, threads
from twisted.application import service
from twisted.python import log
from sqlalchemy import
sector119 wrote:
Hi all!
Why I get unbound method execute() must be called with Session
instance as first argument (got Select instance instead) with
following code?
from twisted.internet import reactor, task, threads
from twisted.application import service
from twisted.python import
Hello,
my question is quite a basic one, but I couldn't find an answer, maybe
because it's too basic.
I have a table User and want to add a new Column('donated',
Boolean). Then I initialize the database with metadata.create_all
(self.database_engine) but in phpPgAdmin there are no changes.
gizli wrote:
Thanks a lot Michael.
The merge functionality is what I was looking for. This also exposed a
flaw in our model I think. We keep using the auto-increment primary
keys which would make merge() impossible to use in the scenario I was
describing. Right?
if you want to merge data
gizli wrote:
Thanks a lot Michael.
The merge functionality is what I was looking for. This also exposed a
flaw in our model I think. We keep using the auto-increment primary
keys which would make merge() impossible to use in the scenario I was
describing. Right?
autoincrement or not has
I don't know why but now exception is:
InvalidRequestError: Instance 'DBAccount at 0x134360d0' is not
persisted
On 11 Sie, 01:34, grassoalvaro grassoalv...@yahoo.com wrote:
Hi,
example from Pylons application, but i think that framework doesn't
matter here:
class
you can't do Session operations and commits inside of after_insert().
you're already in the session.flush() operation. I guess I have to make
this clearer for every individual method in the docs.
grassoalvaro wrote:
I don't know why but now exception is:
InvalidRequestError: Instance
Hmm, but after_insert() is the best place where i can put this king
logic (updating/inserting data in may places). So i can't use session
operations inside of after_insert() at all?
On 11 Sie, 18:35, Michael Bayer mike...@zzzcomputing.com wrote:
you can't do Session operations and commits
This is not exactly what i was looking for. I want to connect only one
model with some kind of operations, not all session...
On 11 Sie, 19:36, Michael Bayer mike...@zzzcomputing.com wrote:
grassoalvaro wrote:
Hmm, but after_insert() is the best place where i can put this king
logic
grassoalvaro wrote:
This is not exactly what i was looking for. I want to connect only one
model with some kind of operations, not all session...
scan through Session.dirty etc. for the objects you want. if a new
extension MapperExtension.before_flush() were added it would be working
more
Oh, that is a good idea and it's working.
Thanks ;-)
On 11 Sie, 20:12, Michael Bayer mike...@zzzcomputing.com wrote:
grassoalvaro wrote:
This is not exactly what i was looking for. I want to connect only one
model with some kind of operations, not all session...
scan through
From what I see, you forgot the self argument in the getRendered
function definition.
def getRendered(self):
return '%s\n%s' % (self.title, self.content)
On Aug 10, 5:00 am, Andreas andr...@flausch.at wrote:
Arghh... I got it.
The problem was that I wasn't querying through a session,
Hi sqlalchemy,
I'm a newbie to SA. I hope you could help me with the following problem.
Say that I have:
class Position(Base):
__tablename__ = 'Position'
id = Column('id', Integer, primary_key=True)
position = Column('name', String) #center, guard etc'
class Player(Base):
1. append_column() only raises that error if the Column() you're sticking
there was already associated with some other table or selectable object.
2. you need ALTER TABLE. you can of course just say engine.execute(ALTER
TABLE rest of statement). For more options, there is an FAQ entry
here:
I have a case(...) that looks right when I print it and am now trying
to use it in a filter, something like:
sess.query(User).select_from(join(...)).filter(case(...) == 1)
But I get an error. When dissecting the parts, the problem is coming
from the case(...) == 1 part. Can someone tell me
I have virtually the same question. To put it another way I have an
ORM mapped Table() in my Python code. There is a Column() in that
table that is not yet in my Postgres database. How do I get that Column
() into the database?
I have tried table.append_column(col) but it's telling me this
Not much detail to tell what is wrong. Here is a contrived but working
example based on one of my examples:
ut = Table('user',meta,
Column('uid',String,primary_key=True),
Column('name',String)
)
kt = Table('keywords',meta,
Column('keyword',String,primary_key=True)
)
ukt =
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