Hi,
Try to replace
.join(Prosjekt,Sak.prosjektid) with the .join(Prosjekt,Sak.prosjekt)
in your first query and write back,
Alex
On 23 сент, 12:38, olavgg [EMAIL PROTECTED] wrote:
I've recently started using SQLAlchemy and is a newb. I have good SQL
knowledge though. My first project with
Hello,
Actually, you can join on any condition, not only on the relation
condition,
In this case your query needs to evolve from:
.outerjoin((ATranslation,Book.translations))\
to:
.outerjoin((ATranslation,
and_(ATranslation.book_id == Book.isbn,
Thank you for your answer,
I did as you said but still returns the same error:
InvalidRequestError: Mapper 'Mapper|Sak|sak' has no property 'class
'Products.TikkTakk.model.Prosjekt.Prosjekt''
--~--~-~--~~~---~--~~
You received this message because you are
thanx alot
it works
On Sep 21, 2:05 am, Michael Bayer [EMAIL PROTECTED] wrote:
On Sep 20, 2008, at 7:59 AM, m.talaee wrote:
hi all
i need to sort users by number of theirfriends.
there is many to many relation table between user table and itself.
order_by don't support ordering (or i
hi
i have cascade= option of relation switched automaticaly between all
and other values, and nothing. so i used cascade=None as nothing,
hoping it will get the default behaviour. the result was some query
got 6x slower (actualy thats why i went hunting it)...
nope, it happens that
Morning Guys,
I hope this'll be a fairly simple question. I have a query which looks
something like this:
the_objects = session.query(myobject.myobject).filter(myobject.created
:lastrecord).params(lastrecord=time.strftime(%Y-%m-%d %H:%M:%S,
from_date)).all()
This grabs all the records
first u get your query sorted in proper order (by timestamp or even
dbid, or hierarchicaly via subselect + groupby + order, whatever)
then yourquery[:1000]
On Wednesday 24 September 2008 14:11:24 Heston James - Cold Beans
wrote:
Morning Guys,
I hope this'll be a fairly simple question.
K, seems that I've found the root cause:
When you are making the join from query, the syntax is:
app.session.query(Sak).join(Sak.prosjektid).filter(
where Sak.prosjektid is the relation property of the Sak class
or you can specify the target in the tuples form:
Thank you again for a good answer. I still can't figure this out
though, Im getting the same error message all the time when I
use .join()
Could it be an issue with Elixir which I'm using? Or with Plone/Five?
What about just using a from_statement?
On Sep 24, 3:16 pm, Alex K [EMAIL PROTECTED]
Hi,
Thanks for the response, that gave me a good foot in the door to this.
I've now appened my existing query with.
.order_by('myobject.created')[:1000]
Which appears to give the desired result set, however, when looking
through the SQL debug output it seems that the limit their is applied
Heston,
Heston James wrote:
Hi,
Thanks for the response, that gave me a good foot in the door to this.
I've now appened my existing query with.
.order_by('myobject.created')[:1000]
Just tried this on a simple example:
query = query.limit(500)
Quote from doc for 0.5rc1:
*def
Emmett Lazich wrote:
Thank you Jason. orderinglist looks like what I am after!
Is your orderinglist plugin fully functional in 0.4.7p1?
Yep.
Before I attempt it, pls advise if there any technical reason preventing
the integration of orderinglist into the basic_tree.py (adjacency list)
Werner,
Thank you for your response, very kind of you. This looks to be more
what I'm looking for, after a quick test it seems that it is now
applying the limit at the SQL level which is definitly a good thing.
Where abouts in the documentation did you find that? Look here:
Thank you - i think it is a solution
SA's Constraint types have support for generating a deferrable key at
CREATE TABLE table:
http://www.sqlalchemy.org/docs/05/sqlalchemy_schema.html#docstrings_s...
I believe you can either define the cyclic constraints as initially
deferred for this
Awesome! Thank you very much indeed for the follow-up.
After turning of expire_on_commit, saving a newly created object takes
less than 1/3 of a second even with 100K objects in memory.
It's always nice to find the fast = True switch. :-)
On Sep 23, 6:00 pm, Michael Bayer [EMAIL PROTECTED]
Heston,
Heston James wrote:
Werner,
Thank you for your response, very kind of you. This looks to be more
what I'm looking for, after a quick test it seems that it is now
applying the limit at the SQL level which is definitly a good thing.
Where abouts in the documentation did you find
There is a case in my application where setting the attribute
'version' which is the name of a relationship to a look up table. When
I avoid setting this attribute, saving the record takes 0.15s, however
when I set the value of this relationship, saving the record takes
upwards of 30 seconds.
Replying to my own post:
It appears that I've resolved this problem by removing the reciprocal
relationship (backref) from this particular relation. Though it is a
bit of a head-scratcher as to why the removal of the backref resolves
the circular dependency problem given that this table has many
I have a setup like this:
class Entity(object): pass
class Persoon(Entity): pass
entity_tabel = Table('contact', metadata,
Column('contactid', Integer, primary_key=True),
Column('voornaam', String(75)),
I've never used Elixir/Plone, I'll try you example with Elixir tomorow
and will let you know.
On 24 сент, 18:27, olavgg [EMAIL PROTECTED] wrote:
Thank you again for a good answer. I still can't figure this out
though, Im getting the same error message all the time when I
use .join()
Could it
Hi all,
I'm trying to set up a many-to-many system using the Declarative syntax
against an existing MySQL set of tables. We're using a 'link' table
between two other tables we want to relate many-to-many. Here's the
simplified layout of those tables:
mysql desc press_routing_press;
On Sep 24, 2008, at 6:23 AM, [EMAIL PROTECTED] wrote:
hi
i have cascade= option of relation switched automaticaly between all
and other values, and nothing. so i used cascade=None as nothing,
hoping it will get the default behaviour. the result was some query
got 6x slower (actualy thats
On Sep 24, 2008, at 11:02 AM, Heston James wrote:
Hi,
Thanks for the response, that gave me a good foot in the door to this.
I've now appened my existing query with.
.order_by('myobject.created')[:1000]
Which appears to give the desired result set, however, when looking
through the
On Sep 24, 2008, at 12:11 PM, jason kirtland wrote:
SA's Constraint types have support for generating a deferrable key at
CREATE TABLE table:
http://www.sqlalchemy.org/docs/05/sqlalchemy_schema.html#docstrings_sqlalchemy.schema_Constraint
I believe you can either define the cyclic
On Sep 24, 2008, at 2:16 PM, Randallabra wrote:
Replying to my own post:
It appears that I've resolved this problem by removing the reciprocal
relationship (backref) from this particular relation. Though it is a
bit of a head-scratcher as to why the removal of the backref resolves
the
On Sep 24, 2008, at 5:19 PM, Doug Farrell wrote:
class PressRoutingPress(Base):
'''This class defines the many-to-many join table between press
and press_routing.
'''
__tablename__ = press_routing_press
__table_args__ = {'autoload' : True}
press_id = Column(Integer,
I am trying to construct a select query in mysql (version
5.0.51a-3ubuntu5.3-log) using SQL functions. Once I set the convert_unicode
flag = True on my engine some function results are returned as type str and
some results are returned as type unicode (I want, and expected, all
unicode).
On Sep 24, 2008, at 10:13 PM, Shawn Church wrote:
I am trying to construct a select query in mysql (version
5.0.51a-3ubuntu5.3-log) using SQL functions. Once I set the
convert_unicode flag = True on my engine some function results are
returned as type str and some results are
On Wed, Sep 24, 2008 at 7:37 PM, Michael Bayer [EMAIL PROTECTED]wrote:
we can of course add more functions to the list of known functions
such as ifnull() (it would be best if ifnull() is a SQL standard
function, I'm not sure if it is).
Not sure this will work for IFNULL since it's type
Shawn Church wrote:
On Wed, Sep 24, 2008 at 7:37 PM, Michael Bayer [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
we can of course add more functions to the list of known functions
such as ifnull() (it would be best if ifnull() is a SQL standard
function, I'm not sure
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