Ok figured out what was causing that - I had one record with '0' for a
sire_id and no dog with id = 0. Fixing that up makes the representation
code below work. Yay! *But*... now the edit drop down list is showing
id's instead of names... scratches head I'm sure that *was* working
before
You could do:
def register_dog():
if request.args(0) == 'edit':
db.dog.sire_id.requires = IS_IN_DB(db(db.dog.id!
=request.args(2)), db.dog, db.dog._format)
form=SQLFORM.grid(db.dog, csv=False, paginate=5,
user_signature=False)
return dict(form=form)
On Feb 5, 4:23 am, Mark
A simpler fix for the edit/add functions is to specify a format in the
model:
db.dog.sire_id.requires = IS_EMPTY_OR(IS_IN_DB(db, 'dog.id', '%(name)s'))
(Hmm ... suspect I had that there before at some stage which, but edited
the format away when I was trying to pin down the other problems -
I see that this has been noted as an issue here:
http://code.google.com/p/web2py/issues/detail?id=382
I am using 1.99.4, anything I can try?
Regards
Mark
On 05/02/12 13:17, Mark Kirkwood wrote:
In order to generate a model with foreign references to itself you
need to use 'reference table'
It *almost* works using:
db.dog.sire_id.represent = lambda sire_id, row:
db(db.dog.id==sire_id).select(db.dog.name)
However that brings back a header 'dog.name' that mucks up the
appearance of the form. What I wanted to write was:
db.dog.sire_id.represent = lambda sire_id, row:
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