Awesome! This is exactly what I needed, thanks Mike.
On Thu, Apr 10, 2014 at 10:17 PM, Michael Bayer wrote:
> we do UPDATE..FROM but getting the VALUES thing in there requires some
> extra recipes as we don't have that structure built in right now. also
> the alias part of it where it names o
we do UPDATE..FROM but getting the VALUES thing in there requires some extra
recipes as we don't have that structure built in right now. also the alias
part of it where it names out the columns in the AS portion is not natively
built in either. The recipe is here:
https://bitbucket.org/zzze
I want to write a query like so with SQLAlchemy:
UPDATE mytable
SET
mytext = myvalues.mytext,
myint = myvalues.myint
FROM (
VALUES
(1, 'textA', 99),
(2, 'textB', 88),
...) AS myvalues (mykey, mytext, myint)
WHERE mytable.mykey = myvalues.mykey
Is this kind of thing supported
Not sure what the appropriate answer is, obviously the warning is there because
people were mis-configuring their relationships and getting the wrong results.
What exactly is the use case for restating the same relationship several times
under the same name? If these relationships extend fr
On Apr 10, 2014, at 3:00 PM, Mauricio de Abreu Antunes
wrote:
>
> I am not understanding the docs because they only talk about a subselect
> inside the WHERE. What I am doing here is retrieving a MAX(field) from a
> SELECT.
>
> Can someone guide me to the right direction? Thanks!
the query
Well the problem is this functionality will be part of SQLAlchemy-Continuum
(versions relationships for entities using join table inheritance). It
would be ugly if an extension for SQLAlchemy would throw warnings for
certain mapper scenarios.
Also I'm using warnings.simplefilter('error', sa.exc
On Apr 10, 2014, at 1:12 PM, Nguyễn Hồng Quân wrote:
>
> Before, I had gender_type declared inline in model A (gender =
> Column(Enum('male', 'female', name='gender_type'))).
> Now I add model B and also want to reuse the gender_type in model A. So, I
> bring gender_type out and link to it f
what happens if you just ignore the warning? i think it might work anyway:
from sqlalchemy import *
from sqlalchemy.orm import *
from sqlalchemy.ext.declarative import declarative_base
Base = declarative_base()
class A(Base):
__tablename__ = 'a'
id = Column(Integer, primary_key=True)
Hello list,
I am refactoring some RAW SQL to use SQL Alchemy ORM Query object
(session.query).
What I have so far is a SQL to reproduce using SQL Alchemy:
My SQL is this:
1. SELECT DATE_FORMAT(DATE, '%Y%m%d') AS `date`,
2. `Hour` AS `hour`,
3. `Minute` AS `minute`, (MAX(TotalMBs)*8/5/
Hi Michael,
On Mon, Dec 16, 2013 at 12:37 AM, Michael Bayer wrote:
>
> On Dec 15, 2013, at 4:16 AM, Hồng Quân Nguyễn
> wrote:
>
> Hi all,
>
> Assume that I have this model
>
> class ModelA:
> gender = Column(Enum('male', 'female', name='gender_type'))
>
> and in another ModelB, I want to
Hi,
I have a situation where I have three classes A, B and C with B and C
inheriting class A.
Now each of these classes also has a version class, lets call them
AVersion, BVersion and CVersion. The inheritance tree is the same: BVersion
and CVersion inherit AVersion. What I want to achieve is
That's perfect. Thanks!
On Thursday, 10 April 2014 11:38:24 UTC+1, Simon King wrote:
>
> You can also use sqlalchemy.literal, which returns an object that you
> can treat like a column:
>
> sqlalchemy.literal('string').like('whatever')
>
> You may also be interested in the 'startswith' shortc
You can also use sqlalchemy.literal, which returns an object that you
can treat like a column:
sqlalchemy.literal('string').like('whatever')
You may also be interested in the 'startswith' shortcut, which calls
.like under the hood
sqlalchemy.literal('string').startswith(yourcolumn)
Simon
O
I'm sorry, forget my last response, I see what you mean now.
Thanks a lot!
On Thursday, 10 April 2014 11:31:23 UTC+1, Gunnlaugur Briem wrote:
>
> Hi,
>
> See ColumnElement docs:
>
>
> http://docs.sqlalchemy.org/en/rel_0_9/core/sqlelement.html#sqlalchemy.sql.expression.ColumnElement
>
> ... for yo
Hi, thanks but I'm not talking about calling like on a column - I need to
call like on a string literal. I tried doing text('string').like() but that
doesn't work either.
On Thursday, 10 April 2014 11:31:23 UTC+1, Gunnlaugur Briem wrote:
>
> Hi,
>
> See ColumnElement docs:
>
>
> http://docs.sq
Hi,
See ColumnElement docs:
http://docs.sqlalchemy.org/en/rel_0_9/core/sqlelement.html#sqlalchemy.sql.expression.ColumnElement
... for your specific example you can call .like(...) on column clauses:
>>> print Column('foo', Text).like('bar%baz')
foo LIKE :foo_1
More generally, if you wanted so
I can't seem to find a way to do this without passing raw SQL to .filter()
I could just do:
.filter(column == func.substring('string', 1, func.char_length(column)))
but is it possible to do it with LIKE?
I.e. I need to return all rows that match the beginning of a string, so for
'string' I cou
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