Anybody knows about this?
-- Forwarded message --
From: Mitch [EMAIL PROTECTED]
Date: Dec 5, 2007 1:06 AM
Subject: [elixir] sqlite3.OperationalError: Could not decode to UTF-8 column
To: SQLElixir [EMAIL PROTECTED]
Apologies in advance if this should be sent to the SQLAlchemy
he needs to supply data to the DB as python unicode objects..the
strings from the file should be decoded first from ISO-8859.
if he wants to sqlite's text_factory feature, he can use a custom
connection function described in
Thank you Michael - I had completely missed the backref full load.
On Dec 5, 5:27 pm, Michael Bayer [EMAIL PROTECTED] wrote:
hi martin -
the issue is that each Tag object contains a collection of 1000
employees on it, and when you make an assignment in the forwards
direction (i.e.
On Dec 5, 8:00 am, Michael Bayer [EMAIL PROTECTED] wrote:
he needs to supply data to the DB as python unicode objects..the
strings from the file should be decoded first from ISO-8859.
Thanks for the help. After some experimentation I found that encoding
all string data to UTF-8, ignoring
Hi,
Sorry for this meaningless subject !
I am learning SQLAlchemy and I installed version 0.4.1 few days ago.
My problem is probably easy to solve. I swear I have read a good part
of the documentation, and searched this group ! But...
Short example. Two tables :
- languages having a sequence
I have three tables a(a query of a really), b, c
a has a 1-many relationship with b
c has a 1-many relationship with b
What I would like to do is in my mapper for table c, is sort the order
of rows from b by a.name.
I don't know how to do this or if it is possible. What I have looks like:
it appears to have broken since the session adjustments in 0.4.1. it
should work in 0.4.0 for now.
On Dec 5, 2:05 pm, paftek [EMAIL PROTECTED] wrote:
Using Python 2.5.1, I can not get this example to work
:http://svn.sqlalchemy.org/sqlalchemy/tags/rel_0_4_1/examples/vertical...
It crashes
Using Python 2.5.1, I can not get this example to work :
http://svn.sqlalchemy.org/sqlalchemy/tags/rel_0_4_1/examples/vertical/vertical.py
It crashes with :
Traceback (most recent call last):
File vertical.py, line 161, in module
session.save(entity3)
...
I believe what you need to do is get an instance of a language object
something like:
item.Language = session.query(Language).filter_by(name='en').first()
There maybe a better way to do this, but its how I currently do it (so
if there is a better way I would like to know).
paftek wrote:
Hi,
I am mapping 3 tables linearly. The first 2 have a many-to-many
relation and the last one is a one-to-one relation.
I would like to get all the distinct entries from the third table.
I was not able to figure how to do the mapping. So, I tried by doing
my own set of entries outside of SA but when
hi martin -
the issue is that each Tag object contains a collection of 1000
employees on it, and when you make an assignment in the forwards
direction (i.e. employee.tag.append(sometag)), the corresponding
reverse relation needs to be fully loaded and then updated according
to backref semantics.
On Dec 5, 2007, at 1:56 PM, David Gardner wrote:
I have three tables a(a query of a really), b, c
a has a 1-many relationship with b
c has a 1-many relationship with b
What I would like to do is in my mapper for table c, is sort the order
of rows from b by a.name.
I don't know how to
Hello again,
I have recently noticed that a particular assignment seems to be
taking a relatively long time.
Not being a database expert I am confused as to whether the last
assignment 'person.tags = tags' should be so slow when referencing
existing tags that are used by other entities - it
with sqlalchemy 0.4.1,
Is there an idiom for delete the children of the object
without actually deleting the object itself?
I tried
session.delete (obj)
session.flush()
# add new children
session.save (obj)
session.flush()
But it gave me the error
InvalidRequestError: Instance '[EMAIL
the example is repaired in rev 3856 of the SVN trunk. it just uses a
contextual session now.
On Dec 5, 2007, at 2:05 PM, paftek wrote:
Using Python 2.5.1, I can not get this example to work :
http://svn.sqlalchemy.org/sqlalchemy/tags/rel_0_4_1/examples/vertical/vertical.py
It crashes
Michael thanks for the help, this is how I was able to get it working.
Probably isn't the most efficient, but it works, I couldn't implement it
the way you proposed because I still need to be able to do a_row = b_row.A
-
sql_b = select([b_table, sql_a.c.name], b_table.c.a_id =
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