On Mar 19, 2009, at 7:50 PM, loctones wrote:
>
> I'm moving the database which drives a program from MySQL to Oracle.
> The original implementation of the database columns was in CamelCase.
> My company dictates that all caps be used for column names.
>
> In the sqlalchemy documentation, I found
I'm moving the database which drives a program from MySQL to Oracle.
The original implementation of the database columns was in CamelCase.
My company dictates that all caps be used for column names.
In the sqlalchemy documentation, I found this quote:
Names which contain no upper case characters
On Mar 19, 2009, at 12:34 PM, jo wrote:
>
> Michael Bayer wrote:
>> why dont you just stick with None instead of "nn" ? then you just
>> write:
>>
>> if v is None:
>>clause.append(self.c.field != v)
>> else:
>> clause.append(self.c.field == v)
> It could be an idea but not intuitive and
Michael Bayer wrote:
> why dont you just stick with None instead of "nn" ? then you just
> write:
>
> if v is None:
> clause.append(self.c.field != v)
> else:
>clause.append(self.c.field == v)
It could be an idea but not intuitive and unnatural
because None = IS NOT NULL (very ugly
a...@svilendobrev.com wrote:
>> def search( self, **kw ):
>> by_where_clause = {}
>> for k,v in kw.items():
>> by_where_clause[ k ] = v
>>
> i guess u want to do query.filter_by(**by_where_clause) after that?
>
This is the final result, and I'm not problems abo
why dont you just stick with None instead of "nn" ? then you just
write:
if v is None:
clause.append(self.c.field != v)
else:
clause.append(self.c.field == v)
On Mar 19, 2009, at 11:43 AM, jo wrote:
>
> Well, MIchael, in my case a notnull() function could be very
> interesting be
> def search( self, **kw ):
> by_where_clause = {}
> for k,v in kw.items():
> by_where_clause[ k ] = v
i guess u want to do query.filter_by(**by_where_clause) after that?
it's just a syntax sugar over .filter(). so
by_where_clause = []
for k,v in kw.items(
Well, MIchael, in my case a notnull() function could be very interesting because
I'm using it in a function, and would like pass values as parameters in such
way:
def search( self, **kw ):
by_where_clause = []
for k,v in kw.items():
if k == 'myfield1':
i
Thanks for the answers, actually this thread-head-post had been
deleted,
sorry for the duplicate threads and now dangling replies in this one,
Martin
On Mar 19, 3:11 pm, a...@svilendobrev.com wrote:
> this clone stuff comes over and over and over...
> i have similar .copy() in dbcook unfini
gotcha,
thanks :)
btw, love SA, one of the reasons i use pylons when I can and not
Django,
Martin
On Mar 19, 4:00 pm, Michael Bayer wrote:
> On Mar 19, 2009, at 10:39 AM, Martin wrote:
>
>
>
> > I dont see it, especially since from the docs:
>
> > When given an instance, it follows these st
On Mar 19, 2009, at 10:39 AM, Martin wrote:
>
> I dont see it, especially since from the docs:
>
> When given an instance, it follows these steps:
>* It examines the primary key of the instance. If it’s
> present, it attempts to load an instance with that primary key (or
> pulls from the
On 19 Mar, 15:09, Martin wrote:
> I guess
>
> q = session.query(A).join('b').order_by(B.code).all()
>
> should do the trick, at least it did under 0.4.8
It works in 0.5.2 too, thanks :)
I was wondering though, maybe 0.5.x has a way to do it without the
join? I mean, SQLA should have all the info
I dont see it, especially since from the docs:
When given an instance, it follows these steps:
* It examines the primary key of the instance. If it’s
present, it attempts to load an instance with that primary key (or
pulls from the local identity map).
the instances are in the session an
this clone stuff comes over and over and over...
i have similar .copy() in dbcook unfinished..
1) see prop.direction as one of (ONETOMANY, MANYTOONE, MANYTOMANY) to
figure the "direction" of the relation. why does it matter which
side you're on? as long as u copy one side only..
as of 2) .. d
On Mar 19, 2009, at 10:13 AM, Martin wrote:
>
> there surely must be an easier way to do a deep clone of everything
> except session/SA data and manually specified properties (like ID's,
> or ViewOnly references)
a session.merge() actually performs a deep clone.
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On Mar 19, 2009, at 9:44 AM, Martin wrote:
>
> I've written my own deep_clone for SA Object Trees, which is
> exploiting quite some lowlevel calls inside SA
>
> This has brought me to reimplement the cloning for every major version
> change, I started in 0.3, updated to 0.4 with some major rewor
I've written my own deep_clone for SA Object Trees, which is
exploiting quite some lowlevel calls inside SA
This has brought me to reimplement the cloning for every major version
change, I started in 0.3, updated to 0.4 with some major rework, but I
simply cant get it to work with 0.5.2, and I wo
I guess
q = session.query(A).join('b').order_by(B.code).all()
should do the trick, at least it did under 0.4.8
Martin
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not a stupid question at all, i wasn't being sarcastic if that's what
came across. I honestly didnt have time to look at the source myself
to see what it was called (it could have been "extensions" and
"add()", for example).
On Mar 19, 2009, at 5:16 AM, jarrod.ches...@gmail.com wrote:
>
>
well usually null() and not_(null()) aren't needed as explicit
constructs.comparisons like somecol == None and somecol != None
will generate the appropriate NULL/NOT NULL expression.
On Mar 19, 2009, at 4:48 AM, jo wrote:
>
> Hi all,
>
> I would like to know if there's a notnull() funct
Hi everyone!
I have a simple many-to-one relation between class A and class B, and
I'd like to use a Query to get the "A" instances sorted by a B
attribute (e.g. "code").. I tried with something like this:
q = session.query(A)
q.order_by(A.list_of_b.code)
but obviously "list_of_b" doesn't know a
I've written my own deep_clone for SA Object Trees, which is
exploiting quite some lowlevel calls inside SA
This has brought me to reimplement the cloning for every major version
change, I started in 0.3, updated to 0.4 with some major rework, but I
simply cant get it to work with 0.5.2, and I wo
Thanks, Michael
i end with the following:
#
from sqlalchemy.sql.expression import _Function
class year( _Function):
__visit_name__ = 'year'
def __init__(self, value):
self.value = value
_Function.__init__( self, self.__visit_name__)
def _compiler_dispatch(se
The actual reason why I need "XML RPC" is not because I need RPC.
Actaully I need XML.
I need to represent SA objects in text format so systems using
programming language other than python could decode them.
On Mar 19, 1:27 pm, Andreas Jung wrote:
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DB is utf-8 encoded/collated etc.
On Mar 19, 1:22 pm, Noah Gift wrote:
> On Thu, Mar 19, 2009 at 11:20 PM, Andreas Jung wrote:
> > -BEGIN PGP SIGNED MESSAGE-
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>
> > On 19.03.2009 11:14 Uhr, Alex K wrote:
> > > Well, it does not affect the performance and I still get:
>
> >
On Thu, Mar 19, 2009 at 11:20 PM, Andreas Jung wrote:
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>
> On 19.03.2009 11:14 Uhr, Alex K wrote:
> > Well, it does not affect the performance and I still get:
>
> The Python profiler will tell you exactly about bottlenecks.
> So go and profile you
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On 19.03.2009 11:14 Uhr, Alex K wrote:
> Well, it does not affect the performance and I still get:
The Python profiler will tell you exactly about bottlenecks.
So go and profile your code.
- -aj
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Well, it does not affect the performance and I still get:
Server Software:Apache/2.2.8
Server Hostname:localhost
Server Port:80
Document Path: /l
Document Length:87305 bytes
Concurrency Level: 100
Time taken for tests: 17.146102 seconds
Comple
I believe #1 will iterate on the cursor retrieving one object from cursor
on each iteration, while #2 retrieves all objects then processes the
entire result set in Python.
Try changing #1 to use
for o in session.query(Object).all()
to retrieve all objects before doing the iteration, same as
When i look at the variables in debug mode, It looks like a dict as it
has { } which is why i didn't think it was a collection.
I looked again and it is an instance of ExtensionCarrier and that has
a method called append()
I do search the mail list and the documents before asking stupid
questions
Hi all,
I would like to know if there's a notnull() function in sqlalchemy
similar to null()
to avoid things like not_(null()) ?
thank you
j
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Hi All,
I need an advice, take a look at this code sample:
engine = create_engine(url,encoding = 'utf-8',echo = False,pool_size =
100)
metadata = MetaData()
object_table = Table('_object', metadata,
Column('id', Integer, primary_key=True),
Column('_owner_id
On Thu, Mar 19, 2009 at 2:34 AM, Andreas Jung wrote:
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> On 19.03.2009 8:32 Uhr, Arthur Pemberton wrote:
>> 2009/3/19 Andreas Jung :
>>> -BEGIN PGP SIGNED MESSAGE-
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>>>
>>> On 19.03.2009 6:49 Uhr, Arthur Pemberton wrote:
>>>
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On 19.03.2009 8:32 Uhr, Arthur Pemberton wrote:
> 2009/3/19 Andreas Jung :
>> -BEGIN PGP SIGNED MESSAGE-
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>>
>> On 19.03.2009 6:49 Uhr, Arthur Pemberton wrote:
>>
>>> SQLAlchemy needs a concept of Data Transfer Objects so that it c
2009/3/19 Andreas Jung :
> -BEGIN PGP SIGNED MESSAGE-
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>
> On 19.03.2009 6:49 Uhr, Arthur Pemberton wrote:
>
>>
>> SQLAlchemy needs a concept of Data Transfer Objects so that it can be
>> easily transmitted and reconstituted as necessary and everyone doesn't
>> have to reimplem
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