Re: Unable to add two Numbers

On Sun, Aug 29, 2010 at 11:22 PM, Harbhag Singh Sohal <harbhag.sohal@gmail.com> wrote:

On Sun, Aug 29, 2010 at 10:56 PM, Steve Holden <holdenweb@gmail.com> wrote:

On 8/29/2010 1:20 PM, Harbhag Singh Sohal wrote:
> i am the new user of Django, i try the tutorials of  django wesite
> http://docs.djangoproject.com/en/1.2/intro/tutorial01/
>
>
>
> Now i create a application in django to add two numbers, After filling form.
> and store the values of two inputs and output after add two numbers in
> databases.
>
> me able to create form and database using model.py file and using template,
> but me face problem to store the two input value in database after
> filling in form text box.
>
> me try use request.POST function to get the value, but me also fail to
> get the form values.
>
> Please suggest me how i get the value from form text fields and store
> in database.
>

Harbagh:

Your question is the approximate equivalent of:

 "I have a car, but when I try to drive it it doesn't work"

You don't show any code, you don't give us any error messages, you don't
describe the failure mode at all. You simply say that you fail tp get
the form values and you "face a problem" in storing the information in
the database.

Is it that you don't know how to write the code, or that the code you
have written isn't working.

I have written the code
model.py
from django.db import models

class Math(models.Model):
   input1 = models.IntegerField()
   input2 = models.IntegerField()
   output = models.IntegerField()

Views.py file

from django.template import RequestContext
from django.shortcuts import render_to_response
from mysite.maths.models import Math
from django.http import Http404
from django.shortcuts import render_to_response, get_object_or_404
from django.http import HttpResponseRedirect, HttpResponse
from django.template import RequestContext

def index(request):
   latest_math_list = Math.objects.all().order_by('

id')[:5]
   return render_to_response('maths/index.html', {'latest_math_list':
latest_math_list})

def detail(request, math_id):
   p = get_object_or_404(Math, pk=math_id)
   return render_to_response('maths/detail.html', {'math': p},
                              context_instance=RequestContext(request))
def results(request, math_id):
   p = get_object_or_404(Math, pk=math_id)
   return render_to_response('maths/results.html', {'math': p})

def vote(request, math_id):
   p = get_object_or_404(Math, pk=math_id)
   try:
       selected_input1 = p.math_set.get(pk=request.POST['input1'])
       selected_input2 = p.math_set.get(pk=request.POST['input2'])
   except (KeyError, Math.DoesNotExist):
  # Redisplay the poll voting form.
       return render_to_response('maths/detail.html', {
           'poll': p,
           'error_message': "You didn't fill a value.",
       }, context_instance=RequestContext(request))
   else:
       selected_output = selected_input1 + selected_input2
       selected_output.save()

       return HttpResponseRedirect(reverse('mysite.maths.views.results',
args=(p.id

 

,)))

problem is in def vote function.

 

for code:-
http://202.164.53.116/~jagdeep/mysite/maths/

 

http://202.164.53.116/~jagdeep/mytemplates/maths/

 

and also check site
http://202.164.53.116/django/maths/2/

 

 

--
Harbhag Singh Sohal
Website : http://harbhag.wordpress.com/

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