ng the end-user statement as I illustrated is already
available now.
as
On 01/13/2016 01:46 PM, Richard Gerd Kuesters wrote:
yup! i already was going this way. it would be impossible to
"automagically" do this without the performance sacrifice ... lol. well,
if this looks reasonable in
ls, though you'd need to step through things
to see the full chain. A tool like RunSnakeRun can provide a graphical
display instead.
On 01/13/2016 11:58 AM, Richard Gerd Kuesters wrote:
hi all!
i'm wondering if there's a way to determinate if a query was "launch" by
my code (ex.
ython statement.
You could do this inside the before_execute() event, for example.
On 01/13/2016 01:31 PM, Richard Gerd Kuesters wrote:
Mike, thanks for your attention and i'm sorry, i was not clear enough in
my question.
i would like to know if there's a way to tell if a query was fired by
hi all!
i'm wondering if there's a way to determinate if a query was "launch" by
my code (ex. session.query(Entity)...) or by the internals of sqlalchemy
(backref, relationship, etc). i think it's better to use a example,
based on *adjacency_list.py*:
http://pastebin.com/q3yx36vn
in the
Hello! I was working with a JSONB column in postgres and I noticed that
no updates were issued when changing some inside value, so I have to
issue "*flag_modified*" everytime I change my JSONB attribute. Here's a
sample code that shows this:
# -*- coding: utf-8 -*-
from __future__
thanks Mike! I'm glad I used a "?" in the subject :) I was thinking that
something may be missing, so there it is ...
cheers,
richard.
On 10/09/2015 10:11 AM, Mike Bayer wrote:
I see no usage of Mutable, which is required if you want to detect
updates within a JSON value.
--
You received
ok, just for the record, my "lazyness" lead me to use `lazy='joined'` in
a backref and now things works fine :)
richard.
On 10/01/2015 09:03 AM, Richard Gerd Kuesters wrote:
hey all!
i think i got lost on track about relationships, specially one-to-one.
i'll not go into (cod
hey all!
i think i got lost on track about relationships, specially one-to-one.
i'll not go into (code) details because all my one-to-one are failing
with the following exception:
*
*
*python2.7/site-packages/sqlalchemy/orm/query.pyc in
_no_criterion_assertion(self, meth, order_by,
is your "A" class abstract and/or are you using them with polymorphism?
regards,
richard.
On 09/08/2015 07:00 AM, Piotr Dobrogost wrote:
Hi!
In the FAQ there's entry titled "I’m getting a warning or error about
“Implicitly combining column X under attribute Y”" with the following
example:
well, i'm sorry if i'm pouring could water on you but continuum never
worked as expected (at least for me) and i always used history_meta for
audit, which comes packaged with sqlalchemy as an example and is much
more friendly if you need to add functionalities on your own :)
cheers,
richard.
IMHO, it is better to use ints for masks because they can be indexed by
the database. AFAIK, bits can't be indexed and any bit operator in a
query (let's say, WHERE mybit MYMASK) would probably result in a
full table scan.
well, it's just my two cents from an info I got a long time ago. I
hello!
is it possible to set the polymorphic_identity mapper param as an
expression?
example:
__mapper_args__ = {
polymorphic_identity: in_('employee', 'recruit')
}
thanks a lot,
richard.
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Gerd Kuesters wrote:
hello!
is it possible to set the polymorphic_identity mapper param as an
expression?
example:
__mapper_args__ = {
polymorphic_identity: in_('employee', 'recruit')
}
thanks a lot,
richard.
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You received this message because you are subscribed
defer anywhere).
can some of that cause any interference that can cause this behaviour?
On 08/06/2015 03:29 PM, Mike Bayer wrote:
On 8/6/15 1:50 PM, Richard Gerd Kuesters wrote:
well, i ran today into an issue i never seen before.
considering this simple example:
session = get_session
well, i ran today into an issue i never seen before.
considering this simple example:
session = get_session()
objs = []
for ign in xrange(10):
o = NewObject()
objs.append(o)
session.add_all(objs)
session.commit()
for obj in objs:
print obj in session
/6/15 3:03 PM, Richard Gerd Kuesters wrote:
thanks Mike!
ok, going further then:
1. i'm using postgres (isolation_level=REPEATABLE READ);
2. it's inside a twisted app, into a defer, _but_ the session
lifecycle starts and ends in that defer;
3. in that same (python) process, there's a txpostgres
will this answer my second question?
obj._sa_instance_state.committed_state
{'batch_status': STARTED(db=1),
'updated_by': 24769797950537744L,
'updated_on': Arrow [2015-07-24T14:02:03.360479-03:00]}
cheers,
richard.
On 07/24/2015 11:13 AM, Richard Gerd Kuesters wrote:
hi!
first, /yes/, set
On 07/24/2015 12:59 PM, Mike Bayer wrote:
On 7/24/15 10:13 AM, Richard Gerd Kuesters wrote:
hi!
first, /yes/, set and after_flush are quite different events :) but
here's what i'm trying to accomplish:
one object have an attribute, like 'state', and i would like to
monitor and trigger
obj._sa_instance_state.committed_state.get('key') ==
obj._sa_instance_state.dict.get('key')
False
is this all that's necessary to track down what's modified and the past
state (i believe to be sa_instance_state.dict) ?
cheers,
richard.
On 07/24/2015 11:34 AM, Richard Gerd Kuesters wrote
well, as a general non-specific view yes, it can be another approach.
but, for the piece of code that drove me to this question, i really need
to use after_flush :)
cheers,
richard.
On 07/24/2015 02:15 PM, Jonathan Vanasco wrote:
Couldn't you handle much of this with the Descriptors/Hybrids
well, application-wise it is really to run other procedures, not from
the database or python side, but from a message broker that's expecting
anything to happen to that value -- even if it's just a touch :)
err ... it's quite a specific architecture for dumb clients, so i'm just
taking some
yes, a public api would be awesome, perhaps for a future version? :)
for now, i'll stick to that -- since it works, heh.
cheers,
richard.
On 07/24/2015 12:59 PM, Mike Bayer wrote:
On 7/24/15 10:45 AM, Richard Gerd Kuesters wrote:
obj._sa_instance_state.committed_state.get('key') ==
obj
hi!
first, /yes/, set and after_flush are quite different events :) but
here's what i'm trying to accomplish:
one object have an attribute, like 'state', and i would like to monitor
and trigger some other methods if (given scenarios):
1. the program sets a new value to a state that is
yeah, that's basically what i'm doing: gathering information about
what's happening and sending a response as quick as i can, since most of
the clients are step machines (they still exists), so ... :)
On 07/24/2015 04:01 PM, Jonathan Vanasco wrote:
On Friday, July 24, 2015 at 2:06:15 PM
not quite sqlalchemy related, but one of the best readings i've had
about sql was SQL Anti-Patterns:
https://pragprog.com/book/bksqla/sql-antipatterns
it is not about how to do sql right, it's about not to do certain types
of sql, lol.
On 07/23/2015 01:35 PM, Rich Shepard wrote:
On Thu,
of 2, .all()
gives you one object.
On 7/15/15 3:58 PM, Richard Gerd Kuesters wrote:
right! sorry, now here we go (again):
(Pdb) import logging
(Pdb) logging.basicConfig()
(Pdb) logging.getLogger('sqlalchemy.engine').setLevel(logging.DEBUG)
(Pdb) session.query(MachineUnit
hello!
i'm encountering a weird behaviur with session.count() when using a
custom mapper that implements a where condition to every session.
first, what is happening:
len(session.query(Entity).all()) == 1
session.query(Entity).count() == 2
Entity is a base polymorphic entity, inherited by
oh, forgot to mention:
* this occurs even with a filter that's supposed to bring one register
only (at the database level it works);
* in the database level, a count *without* the where clause brings the
result i mentioned earlier.
thanks,
richard.
On 07/15/2015 03:11 PM, Richard Gerd
=# select count(*) from entity where id_ = 24769797950537768;
count
---
1
(1 row)
is this really right?
On 07/15/2015 04:02 PM, Mike Bayer wrote:
On 7/15/15 2:11 PM, Richard Gerd Kuesters wrote:
hello!
i'm encountering a weird behaviur with session.count() when using a
custom mapper
to the faq entry you mentioned earlier? :)
cheers,
richard.
On 07/15/2015 04:22 PM, Mike Bayer wrote:
On 7/15/15 3:13 PM, Richard Gerd Kuesters wrote:
does this happen even with a filter for a PK?
the problem is:
session.query(Entity).filter(Entity.id_ ==
24769797950537768).count() == 2
len
oh, the pk 24769797950537768 is a postgres biginteger.
On 07/15/2015 04:46 PM, Richard Gerd Kuesters wrote:
thanks Mike!
here we go:
(Pdb) session.query(MachineUnit).filter(MachineUnit.id_ ==
24769797950537768).count()
2015-07-15 16:43:53,114 INFO sqlalchemy.engine.base.Engine
:
On 7/15/15 3:46 PM, Richard Gerd Kuesters wrote:
thanks Mike!
here we go:
(Pdb) session.query(MachineUnit).filter(MachineUnit.id_ ==
24769797950537768).count()
2015-07-15 16:43:53,114 INFO sqlalchemy.engine.base.Engine SELECT
count(*) AS count_1
FROM system_unit, (SELECT
pollux(# FROM system_unit JOIN machine_unit ON
system_unit.pk_system_unit_id = machine_unit.pk_fk_system_unit_id
pollux(# WHERE machine_unit.pk_fk_system_unit_id =
24769797950537768) AS anon_1;
count_1
-
2
(1 row)
faq? :)
On 07/15/2015 04:58 PM, Richard Gerd
hi all,
i was wondering if there's a way to create more than one level of
polymorphic entities in sa. quick example:
class Foo(Base):
...
__mapper_args__ = { ... }
class Bar(Foo):
...
__mapper_args__ = { ??? } # --- polymorphic_identity for ... two?
/15/15 9:09 AM, Richard Gerd Kuesters wrote:
hi all,
i was wondering if there's a way to create more than one level of
polymorphic entities in sa. quick example:
class Foo(Base):
...
__mapper_args__ = { ... }
class Bar(Foo):
...
__mapper_args__
have you taken a look at this approach?
https://bitbucket.org/zzzeek/sqlalchemy/src/4a25c10e27147917e93e6893df13b2b55673e0a7/examples/versioned_history/?at=master
chers,
richard.
On 06/18/2015 08:44 AM, Adrian wrote:
I hadn't seen that part of the documentation - doing it that way works
fine
hello all! i think this is a quick question: is there a way to get the
referencing table and column from a given foreign key column, rather
then list(col.impl.parent_token.expression.foreign_keys)[0] ?
best regards,
richard.
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You received this message because you are subscribed to the
thanks a lot, Mike!
good catch of yours. the answer was in front of me all the time and i
couldn't see it ... my mistake, thanks for pointing the right direction ;)
best regards,
richard.
On 06/02/2015 03:17 PM, Mike Bayer wrote:
On 6/2/15 12:59 PM, Richard Gerd Kuesters wrote:
thanks
hi all, again :)
how can I create an index in fields inherited by other classes?
example:
class TimestampMixin(object):
updated_on = Column(DateTime) # i wanted to create three indexes
in this field, updated_on, updated_on.asc() and updated_on.desc()
class SomeOtherClass(Base,
Bayer wrote:
On 6/2/15 10:16 AM, Richard Gerd Kuesters wrote:
hi all, again :)
how can I create an index in fields inherited by other classes?
example:
class TimestampMixin(object):
updated_on = Column(DateTime) # i wanted to create three indexes
in this field, updated_on, updated_on.asc
be associated with table 'http_adapter'.
in the example above, http_error inherits from adapter.
best regards,
richard.
On 06/02/2015 01:45 PM, Mike Bayer wrote:
On 6/2/15 12:05 PM, Richard Gerd Kuesters wrote:
oh, sorry Mike, I forgot to mention that I use TimestampMixin in
other classes
hello all!
probably this was asked before, as I already grabbed some answers
already from here and stackoverflow, but I don't really feel happy about it.
problem: i have a query that it's result must go directly as a json (web
/ rpc usage), and I wonder if I must go from the cycle .
class
straight, performance-wize optimization :)
best regards,
richard.
On 06/01/2015 10:00 AM, Simon King wrote:
On Mon, Jun 1, 2015 at 1:51 PM, Richard Gerd Kuesters
rich...@pollux.com.br wrote:
hello all!
probably this was asked before, as I already grabbed some answers already
from here
Thanks Jonathan,
I agree with you, 100%. I have methods for that also, when I have to
deal with the real objects and queries and stuff.
The point, in my question, is that I have some services that are not
vital to my application, but are used constantly -- and it just spits
out data. I'm
argh!
results = map(lambda r: dict(r.items()),
session.execute(my_select).fetchall())
much simplier :) but, the question persists: is this the best approach
for a raw data dictionary result query?
best regards,
richard.
On 06/01/2015 10:22 AM, Richard Gerd Kuesters wrote:
well, i can
thoughts? :)
On 06/01/2015 10:08 AM, Richard Gerd Kuesters wrote:
thanks Simon!
yes, i'm already using hooks so I can pass datetime, decimal, enums
and so on; of course, it can help if I have to go with the result
proxy. i just wonder if there's another way of doing this without
having
not a problem -- i'll have to managed something by myself :)
ps: sorry for my bad english, sometimes i can't make understandable
questions :)
best regards,
richard.
On 05/19/2015 11:16 AM, Mike Bayer wrote:
On 5/19/15 8:57 AM, Richard Gerd Kuesters wrote:
hi!
this may be a weird question
Gerd Kuesters wrote:
thanks Mike!
when i stated about the limit, it was because it must not be taken as a
parameter for any query, which select * from blah and select * from bla
limit N should be return the same exactly number of rows, including where
filters and so on. it is something like
hi!
this may be a weird question, but is there a way i can restrict the
number of children in a relationship? not by limit ...
scenario: i have a one to many rel, where the parent have 3 values (row,
column, depth) that creates a max child count of row * column * depth
(yes, like the 3d
i know, i'm sorry for that. i first posted it here since my whole
application is managed by sqlalchemy, so that's why i asked for
something. i mentioned postgresql because it's the database that i use
and there's a lot of database specific solutions bundled with sa. but,
even if no rdbms
://pypi.python.org/pypi/sqla-hierarchy)). when it comes to
polymorphism, i forgot that i had to use select instead of query to
retrieve my objects :)
best regards,
richard.
On 04/27/2015 07:41 PM, Mike Bayer wrote:
On 4/27/15 4:31 PM, Richard Gerd Kuesters wrote:
well, i'm having trouble dealing
well, i'm having trouble dealing with polymorphic objects. i mean, the
functionality is fine, i just don't know how to obtain the main object.
let me be clear: i have A, which is my main object, and is inherited by
B and C. I would like to work with the A object, even though it's
polymorphic
perhaps this could help you?
http://sqlalchemy-utils.readthedocs.org/en/latest/range_data_types.html#datetimerangetype
richard.
On 04/24/2015 10:09 AM, Dimitris Theodorou wrote:
Hi,
I am using psycopg2 and trying to put together a new daterange type
that combines the following:
1. A
well, i know that repeating (query) is somehow strange, i believe the
main reason is that *compile()**.process*are not bound to the query
anymore (*i might be wrong*). well, for me it was a one time solution,
perhaps a little digging can bring you a better approach :)
cheers,
richard.
On
yeah, well, that's much simpler. in my scenario, where i had to use this
piece of code, literal_binds are necessary since the query is somehow
huge, with lots of alias and parameters :)
On 04/22/2015 11:07 AM, Mike Bayer wrote:
On 4/22/15 8:27 AM, Richard Gerd Kuesters wrote:
hi,
you
hi,
you must use a specific dialect so sqlalchemy can create it for you. not
the best usage, imho, but here it goes:
*stmt = query.compile().process(query, literal_binds=True)*
i don't know if you want it formated or what, if so, *sqlparse*provides
a good way to do it.
but, again, this
expression). of course, the
approach does require an extra table, but with events I can easily make
it work in sqlalchemy.
cheers,
richard.
On 04/14/2015 08:40 AM, Richard Gerd Kuesters | Pollux Automation wrote:
here, a better illustration with my actual code:
http://pastebin.com/RxS8Lzft
nevermind. i'm again victim of rtfm :)
http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html#postgresql-table-options
great work on this, btw. it'll simplify my life *A LOT* :)
best regards,
richard.
On 04/15/2015 10:10 AM, Richard Gerd Kuesters wrote:
hello Mike!
so ... ok, based
),
right?
On 04/15/2015 02:55 PM, Richard Gerd Kuesters wrote:
the table definitions are listed here: http://pastebin.com/RxS8Lzft
i'm using polymorphic associations, but with inheritance (INHERITS)
there's no need to do it (imho), so the fk column to the parent table
(which is also the pk) can
*, exception.
ps: using ConcreteBase, the error is: AttributeError: type object
'ContainerInstance' has no attribute '__mapper__'
On 04/15/2015 03:13 PM, Richard Gerd Kuesters wrote:
oh, right, concrete! abstract concrete can also do the trick?
On 04/15/2015 03:10 PM, Mike Bayer wrote:
On 4
oh, right, concrete! abstract concrete can also do the trick?
On 04/15/2015 03:10 PM, Mike Bayer wrote:
On 4/15/15 1:59 PM, Richard Gerd Kuesters wrote:
oops, i forgot to comment out the fk to the parent table and now it
doesn't work: sqlalchemy.exc.NoForeignKeysError: Can't find any
didn't know of such a
feature ... thanks for bring it on :) although, is there a way to use it
in declarative, intead of:
MyModel.__table__.add_is_dependent_on(MyParentModel.__table__) ?
cheers,
richard.
On 04/15/2015 02:44 PM, Mike Bayer wrote:
On 4/15/15 1:07 PM, Richard Gerd Kuesters
yup, i know (this pattern) it is not ideal; i was just testing the new
features of sa 1.0 regarding postgres (since i'm actually hands-on). i
should rewrite a whole part of my model (and listeners and extensions
and so on), which are already working with polymorphism.
i will change this
sorry, i mean i couldn't test it earlier, when i first asked the
question :) it was not another co-worker, lol.
cheers,
richard.
On 04/13/2015 06:30 PM, Mike Bayer wrote:
On 4/13/15 4:59 PM, Richard Gerd Kuesters | Pollux Automation wrote:
well, this didn't work with upstream 1.0 - sorry, I
.
Richard Gerd Kuesters | Pollux rich...@pollux.com.br wrote:
well, understanding better the docs for column conflicts, can i use a
declared_attr in a unique constraint? if yes, my problem is solved :)
On 03/24/2015 10:33 AM, Michael Bayer wrote:
Richard Gerd Kuesters | Pollux
rich
Mike, I remember an article of yours where you described much of the
process of creating a new dialect for SA, for a Java database if I'm not
mistaken. I wasn't able to find it, though.
:)
On 04/08/2015 01:19 AM, Mike Bayer wrote:
On 4/7/15 1:59 PM, Ralph Heinkel wrote:
Hello dialect
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You received this message because you
you can use a select as a mapped object if you want, but i don't know if
that's what you're looking for.
On 03/26/2015 01:54 PM, Philip Martin wrote:
am trying to setup schemas particularly related to financial reference
data. The data doesn't change very often, but I want to setup a good
.
Richard Gerd Kuesters | Pollux rich...@pollux.com.br wrote:
well, understanding better the docs for column conflicts, can i use a
declared_attr in a unique constraint? if yes, my problem is solved :)
On 03/24/2015 10:33 AM, Michael Bayer wrote:
Richard Gerd Kuesters | Pollux
rich
hi all!
i'm dealing with a little problem here. i have a parent table and its
two inheritances. there is a value that both children have and must be
unique along either types. is there a way to move this column to the
parent and use a constraint in the child? my implementation is postgres
thanks again, Mike!
just a question: to make the constraint in the parent, shouldn't i move
other columns that composes the constraint to the parent too?
cheers,
richard.
On 03/24/2015 10:33 AM, Michael Bayer wrote:
Richard Gerd Kuesters | Pollux rich...@pollux.com.br wrote:
hi all
hi all!
i remember bumping into this somewhere, but now that i need it, i can't
find. Murphy ... well, here's the question:
* the company i work have a certain convention on naming columns in
the database level, like dt_ for datetime, u_ for unicode, ut_ for
unicodetext, and so on.
the
this, sure. Might be a little tricky:
http://docs.sqlalchemy.org/en/rel_0_9/core/events.html?highlight=before_parent_attach#sqlalchemy.events.DDLEvents.before_parent_attach
Richard Gerd Kuesters | Pollux rich...@pollux.com.br wrote:
hi all!
i remember bumping into this somewhere, but now
hello all :)
from the past years, i've been working on solutions to the problem
described by Jean (we are co-workers, and we use twisted and sqlalchemy,
A LOT), and as everybody may already know, it's a very complicated
combination, since we have to do a lot of code around to have a
with the ORM, any attribute can trigger
a SQL query.
On Sep 8, 2014, at 9:08 AM, Richard Gerd Kuesters
rich...@humantech.com.br mailto:rich...@humantech.com.br wrote:
hello all :)
from the past years, i've been working on solutions to the problem
described by Jean (we are co-workers
in the
operation could be...somehow...*automated*.
or to put it another way: why are you comfortable with the ORM's
implicit SQL on attribute access, but not with gevent's implicit
defer on IO ?
On Sep 8, 2014, at 10:47 AM, Richard Gerd Kuesters
rich...@humantech.com.br mailto:rich
thanks again Mike! i'll work this here :)
my best regards,
richard.
On 06/10/2014 07:14 PM, Mike Bayer wrote:
On Tue Jun 10 15:36:09 2014, Richard Gerd Kuesters wrote:
so, here i am again with another weird question, but it may be
interesting for what it may come (i dunno yet).
the problem
so, here i am again with another weird question, but it may be
interesting for what it may come (i dunno yet).
the problem: i have a collection of abstract classes that, when
requested, the function (that does the request) checks in a internal
dictionary if that class was already created or
,
session.using_bind(some_bind).query(...)
http://techspot.zzzeek.org/2012/01/11/django-style-database-routers-in-sqlalchemy/
On May 18, 2014, at 3:28 PM, Richard Gerd Kuesters
rich...@humantech.com.br wrote:
yeah, well, i was using implicit for little things and explicit for
the bigger ones
Hi Massimo!
In the past, I have used SQLAlchemy to connect to Informix (using the
db2 driver), but it was for pure lazyness -- I had to write everything
by hand, and my application already was using SQLAlchemy, so ... But
that was back in 2007. Those codes are long dead and not in my
Massimo, git it a try to the dialect that Mike passed you. I think it
should give you a better start then using the ibm_db_sa module.
On 05/19/2014 10:40 AM, Massimo Valle wrote:
Thank you Richard,
about the 2nd question, sorry but I'm new to SQLAlchemy and trying to
find a way, so using
intensely to figure out how to make them work.
On May 17, 2014, at 8:47 PM, Richard Gerd Kuesters rich...@humantech.com.br
wrote:
in fact, i map classes against different metadata for different schemas,
since i like to have specialized parts of my app distributed in the database
(the postgres
the key to make things work). if I have a metadata bind to some
engine, is there a quick (and performatic) way to know it?
Em 2014-05-18 16:21, Michael Bayer escreveu:
On May 18, 2014, at 12:10 PM, Richard Gerd Kuesters
rich...@humantech.com.br wrote:
well, this part is still working
in fact, i map classes against different metadata for different schemas,
since i like to have specialized parts of my app distributed in the
database (the postgres part). another part of my app generated sqlite
databases on the fly, based on the same structures conceived earlier.
kinda strange
i'm asking too much of everything? :)
best regards,
richard.
Em 2014-05-11 00:01, Michael Bayer escreveu:
On May 10, 2014, at 7:13 PM, Richard Gerd Kuesters rich...@humantech.com.br
wrote:
hi all!
situation: i'm mapping a select as a class, using mapper. so far so good.
problem
thanks Mike, that worked fine. my code, though, didn't went further
(i'll have to debug a little bit more) :)
best regards,
richard.
Em 2014-05-11 14:43, Michael Bayer escreveu:
On May 11, 2014, at 10:38 AM, Richard Gerd Kuesters
rich...@humantech.com.br wrote:
thanks Mike
hi all!
situation: i'm mapping a select as a class, using mapper. so far so
good.
problem: some of my selected columns *are* foreign keys in their
respective tables, but i would like to say to sqla that they're foreign
keys to another mapped class, which have the pks from which those fks
.
On Apr 26, 2014, at 2:10 PM, Richard Gerd Kuesters rich...@humantech.com.br
wrote:
hi all!
as some already know, sqlite3 version 3.8.x (i'm not quite sure if it's
3.8.x, i might be wrong), but it has now support for recursivity using the
with operator: https://sqlite.org/lang_with.html [1
hi all,
i have a class that have a self reference through *_parent*. this class
is mapped against an selectable, not a class (this information is
useful, lol)
ok, so, using @hybrid_property, i can easily get the amount of children
of this class:
*@hybrid_property**
**def
hi all!
as some already know, sqlite3 version 3.8.x (i'm not quite sure if it's
3.8.x, i might be wrong), but it has now support for recursivity using
the with operator: https://sqlite.org/lang_with.html [1]
well - probably mike can answear this better - will sqla provide basic
support for
about sqlalchemy list
Date: Thu, 17 Apr 2014 14:58:15 -0400
From: Michael Bayer mike...@zzzcomputing.com
To: Richard Gerd Kuesters rich...@humantech.com.br
hi Richard -
feel free to forward it on, it's fine.
- mike
--
You received this message because you are subscribed to the Google
interesting, i didn't knew that :D
i was using shomething like (for softwares such as st2, which has pep8
checking):
## variables
NULL = None # f**k pep-8
TRUE = True # f**k pep-8
FALSE = False # f**k pep-8
so, somecol != NULL is not acused as violating pep8, lol.
well, just for fun :)
yeah, that's why I shared this :) good to know, i'll use that from now on ;)
my best regards,
richard.
On 04/15/2014 09:32 AM, Wichert Akkerman wrote:
On 15 Apr 2014, at 13:25, Richard Gerd Kuesters
rich...@humantech.com.br mailto:rich...@humantech.com.br wrote:
interesting, i didn't
yeah, that's the pain i'm trying to avoid :) i'll probably end up
managing multiple connections, but that's a particular design of my app
(plugin based, multiple subprocesses, and so on) ... :)
On 04/08/2014 06:48 PM, Jonathan Vanasco wrote:
I had a similar situation years ago. We had
perhaps this would help?
http://techspot.zzzeek.org/2012/01/11/django-style-database-routers-in-sqlalchemy/
i'm willing to use different schemas to my question. if anyone have a
better idea, let me know :)
best regards,
richard.
On 04/04/2014 01:58 PM, Richard Gerd Kuesters wrote:
hi all
a
different database, why not?
On Apr 4, 2014, at 12:58 PM, Richard Gerd Kuesters
rich...@humantech.com.br mailto:rich...@humantech.com.br wrote:
hi all!
i have a question about sqlalchemy and database design.
i'm developing an app, where each client may receive an alert about
the total
:
On Apr 8, 2014, at 11:01 AM, Richard Gerd Kuesters
rich...@humantech.com.br mailto:rich...@humantech.com.br wrote:
thanks mike. i know it's a vague question, but that just the point: i
don't know the answer because it can be both :)
let me clarify: assuming the application can be self hosted
hi all!
another question: i'm mapping some classes dinamically, using the
mapper() function. i would like to create relationships, but not in the
properties kwarg of mapper, but after:
*mapper(cls, my_select)**
**...**
**# detects any relationship**
**...**
**setattr(cls, 'my_attr'**,
stupid me.
*mp = **mapper(cls, my_select)**
**...**
**# detects any relationship**
**...
mp.add_property(my_attr, relationship(othercls, ...))
***
sorry for thinking out loud (into the group) ...
best regards,
richard.
On 04/08/2014 04:31 PM, Richard Gerd Kuesters wrote:
hi all!
another
hi all!
i have a question about sqlalchemy and database design.
i'm developing an app, where each client may receive an alert about the
total space usage of their data (files and database), so, using
postgresql, i can get them (data usage size) using a different
tablespace, database or
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