first consult PG documentation to confirm that the copy expert function is
transactional.
Then all you need to do is run it with session execute:
session.execute(COPY ...)
session.commit()
subtransactions=True is not relevant here. The usage of an external
Transaction object is also not
you want to look at:
1. query.values(Class.foo, Class.bar)
as well as
2. Session.query(Class.foo, Class.bar).all()
#2 is in the ORM tutorial, and both are in the full Query API documentation.
On Jun 19, 2010, at 3:37 PM, Jonathan Vanasco wrote:
i know this is usually done with the select()
Hi there,
I'm trying to use the UniqueObject recipe for my project which does
not use declarative_base(). However, I'm having trouble getting this
to work and run into this error:
sqlalchemy.orm.exc.UnmappedInstanceError: Class '__main__.Widget' is
mapped, but this instance lacks
On Jun 20, 2010, at 7:54 AM, Nikolaj wrote:
Hi there,
I'm trying to use the UniqueObject recipe for my project which does
not use declarative_base(). However, I'm having trouble getting this
to work and run into this error:
sqlalchemy.orm.exc.UnmappedInstanceError: Class
I have the following code:
db = SqlSoup('sqlite:///c:\\tutorial.db3')
db_dynamic = 'tf_user'
DB = db.entity(db_dynamic)
print DB
ColHeader = DB.c.keys()
conn = db.connection()
#modify a field
DB.password = 'hello'
db.flush()
#get the table data
data = select([db.tf_user],)
listdata=[]
for row in
On Jun 20, 2010, at 5:33 PM, Aref wrote:
I tried that and still cannot seem to change the field.
is password an actual column in the database table ? create a SQLSoup using
an engine obtained via create_engine(), and specify echo=True on that engine to
see what SQL is actually emitted.
yes the field password is an actual column. Below is the table
definition:
from sqlalchemy import *
from datetime import datetime
metadata = MetaData('sqlite:///c:\\tutorial.db3')
user_table = Table(\
'tf_user', metadata,
Column('id', Integer,
Here is the echoed info when the code is run:
2010-06-20 16:00:02,546 INFO sqlalchemy.engine.base.Engine.0x...6c50
PRAGMA table_info(tf_user)
2010-06-20 16:00:02,546 INFO sqlalchemy.engine.base.Engine.0x...6c50
()
2010-06-20 16:00:02,546 INFO sqlalchemy.engine.base.Engine.0x...6c50
PRAGMA
On Jun 20, 2010, at 5:53 PM, Aref wrote:
db = SqlSoup('sqlite:///c:\\tutorial.db3')
db_dynamic = 'tf_user'
DB = db.entity(db_dynamic)
print DB
ColHeader = DB.c.keys()
conn = db.connection()
#modify a field
DB.password = 'hello'
db.flush()
It appears you're using a method called
you want to look at:
1. query.values(Class.foo, Class.bar)
ah, thank you very much.
i was struggling with that earlier from the API -- i thought i only
needed to do
query.values( foo , bar )
but that didn't work.
2. Session.query(Class.foo, Class.bar).all()
#2 is in the ORM tutorial,
On Jun 20, 2010, at 9:08 PM, Jonathan Vanasco wrote:
you want to look at:
1. query.values(Class.foo, Class.bar)
ah, thank you very much.
i was struggling with that earlier from the API -- i thought i only
needed to do
query.values( foo , bar )
but that didn't work.
2.
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