Hello everyone!
I'm trying to migrate from SqlAlchemy 0.6.8 to 0.7.4.
I have a class that is the base for all the bases in my system. In
that class is where I define the id (numeric primary key) for the rest
of my classes. That class is not mapped to any table.
I want to have getter/setter for
After setting expire_on_commit to False, I hit inconsistency after
commits in DB relations.
For example, I've two tables Host and HostPort, where Host have a
relation to Ports:
class HostPort(Base):
__tablename__ = 'hostport'
db_id = Column('id', Integer, primary_key=True) # the port's id
2011/12/11 Michael Bayer mike...@zzzcomputing.com
My impression was Postgresql handles this much more nicely which is
confirmed by this post:
http://beerpla.net/2009/02/17/swapping-column-values-in-mysql/
the usual way this kind of thing is done is via declaring local variables
in the SQL
On Dec 11, 2011, at 5:56 AM, Hector Blanco wrote:
but if then i try to use the id in filters (such as
Product.manufacturer.any(id=parameterId), where Product is a really
mapped class, with a relationship towards Manufacturer, another
really mapped class, ) I get a key error id,
so it looks
On Dec 11, 2011, at 8:35 AM, Amir Sasson wrote:
After setting expire_on_commit to False, I hit inconsistency after
commits in DB relations.
For example, I've two tables Host and HostPort, where Host have a
relation to Ports:
class HostPort(Base):
__tablename__ = 'hostport'
db_id =
/sqlalchemy/sql/expression.py:1869: SAWarning: The IN-predicate on
comment.reply_id was invoked with an empty sequence. This results in
a contradiction, which nonetheless can be expensive to evaluate.
Consider alternative strategies for improved performance.
return self._in_impl(operators.in_op,
On Dec 11, 2011, at 11:55 AM, lestat wrote:
/sqlalchemy/sql/expression.py:1869: SAWarning: The IN-predicate on
comment.reply_id was invoked with an empty sequence. This results in
a contradiction, which nonetheless can be expensive to evaluate.
Consider alternative strategies for improved
On Dec 11, 2011, at 1:06 PM, Michael Bayer wrote:
In the above case, you'd just say comments_replies = [].
correction, as you're attempting to return a Query; you'd factor the calling
code to expect that an empty list of user_ids as input should result in an
empty result that can't be
I need EmptyQuery because query that returns from my function used for
different cases,
and if I return [], it will raise error, because [] not has query methods
like order_by.
e.g.
query1 = getComments(user_id).order_by('comment.time_create desc')
query2 = getComments(user_id).order_by('id')
The workaround is very simple, just say A.id==5 instead of id=5. The
bug itself is fixed in r99564ce1414c.
Ah, yeah! That works! I find using the double == for comparison
clearer (just a personal opinion)
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Oh, it wasn't exactly an error with the Synonyms itself. They are
working fine for what I've been doing with them (just using them for
getters/setters... nothing fancy) It was more that when I migrated the
Synonyms I have in the 0.6.8 to hybrid_properties in 0.7.4, I was
getting trouble (which I'm
Hello everyone!
I am continuing with the migration from SqlAlchemy 0.6.8 to 0.7.4, and
I've seen a little difference in behavior.
I have a class Product (more or less) like:
class Product(declarativeBase):
_id = Column(id, Integer, primary_key=True)
_model = Column(model,
On Dec 11, 2011, at 3:54 PM, Hector Blanco wrote:
Hello everyone!
I am continuing with the migration from SqlAlchemy 0.6.8 to 0.7.4, and
I've seen a little difference in behavior.
I have a class Product (more or less) like:
class Product(declarativeBase):
_id = Column(id,
hi,
I would like to build a reusabe forum application. For the sake of
simplicity we need two tables Owner and Thread. There is a ForeignKey from
Thread to Owner. As reusability goes, the Owner table is given in a
configuration argument, thus it's unknown when the code is written.
Using pyramid,
Kinda lame I could not find that I should have known
Thanks!
On Dec 9, 2011, at 16:01 , Michael Bayer wrote:
On Dec 9, 2011, at 5:28 AM, Martijn Moeling wrote:
Hi,
I'm puzzled on how to get this working:
class User(base):
Id = Column (Integer,
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