Thanks Massimo- I'm starting to understand the http flow better now...
but the code you sent returned the same error I was seeing in my code
when I clicked on the submit button on the form. Here are the snippets
from the traceback:
...
if form.accepts(request.vars,session):
...
File ".../web2py/gluon/validators.py", line 70, in __call__
match = self.regex.match(value)
TypeError: expected string or buffer
The URL I used was this:
http://127.0.0.1:8000/my_app/input_data/form2?admin=False&email=...@s.com&name=j&profile=something&sure=yes
And the controller code is this:
def form2():
hidden = dict([(k,v) for (k,v) in request.get_vars.items() if not
k in ['name','email','sure']])
form=FORM(TABLE(TR("Your name:",INPUT
(_type="text",_name="name",_value=request.vars.name or '',
requires=IS_NOT_EMPTY())),
TR("Your email:",INPUT
(_type="text",_name="email",_value=request.vars.email or '',
requires=IS_EMAIL())),
TR("Admin",INPUT(_type="checkbox",_name="admin")),
TR("Sure?",SELECT
('yes','no',_name="sure",requires=IS_IN_SET(['yes','no']))),
TR("Profile",TEXTAREA(_name="profile",value="write
something here")),
TR("",INPUT(_type="submit",_value="SUBMIT"))),
hidden=hidden, action='POST', method=URL(r=request))
if form.accepts(request.vars,session):
form.vars.update(hidden)
# response.flash="form accepted"
else:
pass
return dict
(form=form,form_vars=form.vars,request_vars=request.vars)
On May 29, 10:00 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
> You want:
> ## receive info using URL params, and show the form
> ## receive info using form when URL params present
> ## show empty form when no URL params present
> ## receive info using form when no URL params present
> Do not do it this way because your point 2 is outsite the http specs
> and different browsers will behave in different ways.
> Some will discard the variables in the URL, some will not, some may
> duplicate the values. This is not a web2py issue. This is a browser
> issue. There is no standard.
>
> You should do
>
> def form():
> hidden = dict([(k,v) for (k,v) in request.get_vars.items() if not
> k in ['name','email','sure']]
> form=FORM(TABLE(TR("Your name:",INPUT
> (_type="text",_name="name",_value=request.vars.name or '',
> requires=IS_NOT_EMPTY())),
> TR("Your email:",INPUT
> (_type="text",_name="email",_value=request.vars.email or
> '',requires=IS_EMAIL())),
> TR("Admin",INPUT(_type="checkbox",_name="admin")),
> TR("Sure?",SELECT
> ('yes','no',_name="sure",requires=IS_IN_SET(['yes','no']))),
> TR("Profile",TEXTAREA(_name="profile",value="write
> something here")),
> TR("",INPUT(_type="submit",_value="SUBMIT"))),
> hidden=hidden, action='POST', method=URL(r=request))
> if form.accepts(request.vars,session):
> form.vars.update(hidden)
> else:
> pass
>
> On May 29, 11:32 am, Dan <danbr...@gmail.com> wrote:
>
> > > 2) you are using
>
> > > form.accepts(request.vars,session):
>
> > > Which is desigend to prevent double submissions and various types of
> > > attacks by hiding hidden one time tokens in the form and preventing
> > > validation if the form if the token is not returned.
> > > You can disable this by using
>
> > > form.accepts(request.vars,formname=None):
>
> > > and the request.vars.name will be copied in form.vars.name
>
> > Thanks for that suggestion, it helped a bit.
>
> > Sorry, I wasn't clear in my earlier message: I sent my code, and in
> > addition to that I sent the URL to call one of the sample apps in the
> > web2py documentation which showed the same symptoms.
>
> > Here is a self-contained example, with 3 different options for calling
> > the "form.accepts()" method, each having slightly different problems/
> > symptoms - I need to get one of them working (or some other approach).
> > The controller needs to be able to acecpt information from 2 different
> > sources: either using parameters in the URL, or using a form on the
> > web page. If the user starts out sending information using URL
> > parameters, they should be able to use the form to send a subsequent
> > set of information.
> > That means the controller needs to do these 4 things:
> > ## receive info using URL params, and show the form
> > ## receive info using form when URL params present
> > ## show empty form when no URL params present
> > ## receive info using form when no URL params present
>
> > The URL with parameters that I'm using is this:
> > http://127.0.0.1:8000/my_app/input_data/form?admin=False&emai...@s.com&name=j&profile=something&sure=yes
> > and the URL without any parameters is of course
> > this:http://127.0.0.1:8000/my_app/input_data/form
>
> > here is the code in the controller called input_data.py, mostly
> > following the documentation's example 28 (http://www.web2py.com/
> > examples/default/examples):
>
> > def form():
> > form=FORM(TABLE(TR("Your name:",INPUT
> > (_type="text",_name="name",requires=IS_NOT_EMPTY())),
> > TR("Your email:",INPUT
> > (_type="text",_name="email",requires=IS_EMAIL())),
> > TR("Admin",INPUT(_type="checkbox",_name="admin")),
> > TR("Sure?",SELECT
> > ('yes','no',_name="sure",requires=IS_IN_SET(['yes','no']))),
> > TR("Profile",TEXTAREA(_name="profile",value="write
> > something here")),
> > TR("",INPUT(_type="submit",_value="SUBMIT"))))
>
> > ### VALIDATION 1 (disabled)
> > # if form.accepts(request.vars,session):
> > ## receive info using URL params and show form: PROBLEM.
> > information appears to be received but not processed. it says "please
> > fill in the form" and the request variables are displayed (but not
> > form variables).
> > ## receive info using form when URL params present: ERROR. ("if
> > form.accepts(request.vars,session):" leads to error "TypeError:
> > expected string or buffer" from validators.py)
> > ## show empty form when no URL params present: OK
> > ## receive info using form when no URL params present: OK
>
> > ### VALIDATION 2 (enabled)
> > if form.accepts(request.vars,formname=None):
> > ## receive info using URL params and show form: OK
> > ## receive info using form when URL params present: ERROR. ("if
> > form.accepts(request.vars,formname=None):" leads to error "TypeError:
> > expected string or buffer" from validators.py)
> > ## show empty form when no URL params present: PROBLEM. shows user
> > a "form is invalid" message
> > ## receive info using form when no URL params present: OK
>
> > ### VALIDATION 3 (disabled)
> > # if form.accepts(request.vars):
> > ## receive info using URL params and show form: PROBLEM.
> > information appears to be received but not processed. it says "please
> > fill in the form" and the request variables are displayed (but not
> > form variables).
> > ## receive info using form when URL params present: ERROR. ("if
> > form.accepts(request.vars):" leads to error "TypeError: expected
> > string or buffer" from validators.py)
> > ## show empty form when no URL params present: OK
> > ## receive info using form when no URL params present: OK
>
> > response.flash="form accepted"
> > elif form.errors:
> > response.flash="form is invalid"
> > else:
> > response.flash="please fill the form"
> > return dict
> > (form=form,form_vars=form.vars,request_vars=request.vars)
>
> > So the issues that I'm trying to understand and fix:
> > 1) when trying to receive info using form when URL params present,
> > what does the error involving "expected string or buffer" mean? How
> > can I fix that?
> > 2) using validation method #2, how can I avoid showing the error
> > message when the form is loaded without any parameters in the URL?
> > 3) using validation method #1 or #3, why does the controllerappear to
> > receive info from the URL but not act on it?
>
> > Thanks
>
> > Dan
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"web2py Web Framework" group.
To post to this group, send email to web2py@googlegroups.com
To unsubscribe from this group, send email to
web2py+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/web2py?hl=en
-~----------~----~----~----~------~----~------~--~---
