The problem is that if you use CRUD you should not call process. There are
two more issues:
1) requires_IS_NOT_IN_DB() does already what myvalidation is supposed to do
and better (it allows to edit the file itself which contains the value of
name, while myvalidation cannot be used in editing because would generate
an error)
2) you should use SQLFORM instead of crud.
Try this:
table('stations', Field('name'))
db.stations.name.requires = IS_NOT_IN_DB(db,
'stations.name',error_message="station
name already exists!")
db.stations.name.writable = False
form = SQLFORM(db.stations).process(next=URL('index'))
if form.vars.errors.name: response.flash = T("station name already
exists!")
On Thursday, 25 July 2013 15:37:06 UTC-5, Antonis Konstantinos Tzorvas
wrote:
>
> hi,
>
> i'm having this model:
> table('stations', Field('name'))
> db.stations.name.requires = IS_NOT_IN_DB(db, 'stations.name')
>
> and i am creating a crud.create with this:
>
> if request.vars:
> db.stations.name.default = request.get_vars['_name']
> db.stations.name.writable = False
> form = crud.create(db.stations).process(next=URL('index'),
> onvalidation=myvalidation)
>
> def myvalidation(form):
> station = db(db.stations.name==form.vars.name)
> if station:
> form.errors.name = "station name already exists!"
> response.flash = T("station name already exists!") #gets ignored
>
> the thing is that i cannot show the form.errors.name message under the
> field or send a specialized response.flash message, any idea on how to add
> this behavior?
> thanks!
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