On Jan 23, 2008, at 8:01 AM, maxi wrote:
I create an instance of Convenio [ convenio = Convenio() ]
I do, convenio.prestaciones.delete(obj_instance) for delete a object
from prestaciones list.
Now, if I delete one object only, this work fine, but if I delete many
(i.e: two obj) that error
the error is specifically about a many to many table where it expects
to delete two rows but only one matches the criteria. If you are
using more than one session, or removing rows from a many to many
table using SQL statements, this error can occur.
Sorry, I'am a little confuse abut it. (I
On Jan 23, 2008, at 2:15 PM, maxi wrote:
Sorry, I'am a little confuse abut it. (I have only one session)
I've the next table schema:
convenio(conv_id) --- conv_pre(conv_pre_id, conv_id, pre_id) ---
prestacion(pre_id)(convenio many to many with prestacion across
conv_pre)
do you have anything else mapped to the conv_pre table ? it should
*only* be mentioned in one place in your mapping setup.
I only have something like this:
class ConvPre(DBObject):
pass
mapper(ConvPre, conv_pre)
--~--~-~--~~~---~--~~
You received this
On Jan 23, 2008, at 2:34 PM, maxi wrote:
do you have anything else mapped to the conv_pre table ? it should
*only* be mentioned in one place in your mapping setup.
I only have something like this:
class ConvPre(DBObject):
pass
mapper(ConvPre, conv_pre)
OK, then you *cannot* use
OK, then you *cannot* use conv_pre as the secondary argument in
another relation(). You need to use an association:
If I remove ConvPre class and conv_pre mapper too. This problem is
solved ?
I don't need this class and mapper really.
BTW, I will take a look to associationproxy, this look
