I don't know all of function call of sqlalchemy, So i can't use completely,
i have a set of integer (id of my table), I should retrieve project_typpe
field according to list of my id, What do you suggesst code? my table :
(id: int, project_type: text)
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Hi All,
I have this simple model/table:
class Part(Common, Base):
__tablename__ = 'transaction'
id = Column(Integer(), primary_key=True) # one per transaction
part = Column(Integer(), primary_key=True) # one per part
timestamp = Column(DateTime(), nullable=False)
source =
On Nov 19, 2013, at 7:10 AM, Chris Withers ch...@simplistix.co.uk wrote:
Hi All,
I have this simple model/table:
class Part(Common, Base):
__tablename__ = 'transaction'
id = Column(Integer(), primary_key=True) # one per transaction
part = Column(Integer(),
On Monday, November 18, 2013 8:40:13 PM UTC-5, Michael Bayer wrote:
there’s a recipe for doing this with events:
http://www.sqlalchemy.org/trac/wiki/UsageRecipes/SessionModifiedSQL
Oh wow. This is great. Playing with it now.
I still like my idea for syntax though , it's simpler and
Greetings, once more!
I'm having some trouble with logging.
Before I call any sqlalchemy functions or bits (but after sqlalchemy
is imported), I use logging.config.fileConfig(...) to configure the
logging.
The file is set to configure sqlalchemy at NOTSET and
sqlalchemy.engine and
On Nov 19, 2013, at 12:39 PM, Jon Nelson jnel...@jamponi.net wrote:
Greetings, once more!
I'm having some trouble with logging.
Before I call any sqlalchemy functions or bits (but after sqlalchemy
is imported), I use logging.config.fileConfig(...) to configure the
logging.
The file is
Thats a great idea. I'll tackle that next.
I'm having a bit of trouble adapting the recipe to my existing [pyramid]
application.
I'm not seeing a .info property on my sessions in
`_connection_for_session`.
I am using scoped sessions, and the recipe does work fine on this machine /
On Nov 19, 2013, at 1:33 PM, Jonathan Vanasco jonat...@findmeon.com wrote:
Thats a great idea. I'll tackle that next.
I'm having a bit of trouble adapting the recipe to my existing [pyramid]
application.
I'm not seeing a .info property on my sessions in `_connection_for_session`.
On Tue, Nov 19, 2013 at 12:17 PM, Michael Bayer
mike...@zzzcomputing.com wrote:
SQLAlchemy will affect the config of logging only if any of the “echo” flags
are used - the effect of echo=True is that it calls logging.basicConfig().
This config will occur in addition to the config that you
how stable is 0.9 ? is it fairly safe to switch to now ?
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yeah 0.9.0 is imminent, more or less, I might want to put a few more things
into it, nobody’s really been reporting regressions so I suppose I’ll get them
when the library is actually on Pypi.
On Nov 19, 2013, at 2:28 PM, Jonathan Vanasco jonat...@findmeon.com wrote:
how stable is 0.9 ? is
screw it. updated to 0.9. everything works as-needed within 5 minutes.
happy.
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On 19/11/2013 14:49, Michael Bayer wrote:
This query (which seems simple enough to me):
session.query(Part.instrument, func.sum(Part.quantity))\
.filter((Part.account_id=='td') (Part.timestamp date(2013, 11, 1)))\
.group_by(Part.instrument)\
.all()
we don’t support
you want to label your func.sum() in the CTE:
positions = session.query(Instrument,
func.sum(Part.quantity).label(quantity))\
then refer to quantity and instrument_id using .c. since positions is now a
core CTE element:
session.query(Instrument, positions.c.quantity, Observation)\
Hello everybody,
I have a question I couldn't find answer on my own so I'll greatly
appreciate if someone could give me an answer.
Considering simple model https://gist.github.com/momyc/7554839, why would
query like the following work:
On Nov 19, 2013, at 7:11 PM, askel dummy...@mail.ru wrote:
Hello everybody,
I have a question I couldn't find answer on my own so I'll greatly appreciate
if someone could give me an answer.
Considering simple model https://gist.github.com/momyc/7554839, why would
query like the
Thank you Michael for quick response.
On Tuesday, November 19, 2013 8:36:55 PM UTC-4, Michael Bayer wrote:
On Nov 19, 2013, at 7:11 PM, askel dumm...@mail.ru javascript: wrote:
Hello everybody,
I have a question I couldn't find answer on my own so I'll greatly
appreciate if someone could
I have an issue where, I believe due to floating-point representation
issues, reassigning the same value to a floating-point field causes
SQLAlchemy to think the value has been modified, and therefore emits a
gratuitous UPDATE. (This is particularly problematic when using the
versioning mixin,
On Nov 19, 2013, at 8:10 PM, Seth P spadow...@gmail.com wrote:
I have an issue where, I believe due to floating-point representation issues,
reassigning the same value to a floating-point field causes SQLAlchemy to
think the value has been modified, and therefore emits a gratuitous UPDATE.
heh, this is actually some dumb numpy thing, check this out:
from numpy.ma.core import exp
x = exp(1.0)
a = x == x
a
True
a is True
False
there’s your problem, the recipe fixes if you just say this:
class InexactFloat(TypeDecorator):
impl = Float
def compare_values(self, x, y):
Huh. That is odd numpy behavior.
Thanks for the recipe.
On Tuesday, November 19, 2013 8:35:35 PM UTC-5, Michael Bayer wrote:
heh, this is actually some dumb numpy thing, check this out:
from numpy.ma.core import exp
x = exp(1.0)
a = x == x
a
True
a is True
False
there’s your
I can send an example later, but first I'll describe the general scenario
which may be causing the issue. I dug through the codebase and removed any
code that I thought could be potentially causing some weird object aliasing
problems. To provide some insight, I'm building an adhoc query tool
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