Why not just do:
useage = capital * tax_rate
Instead of your projfin function. In the projfin function, the request
you are passing is also redundant.
As for the error, I don't know how you refactored your models code but
obviously from the error message, you are not passing in ints. You can
try to debug the code by printing capital and tax_rate so you can see
what values are being passed into the function.
On 3/19/12, Tim Ney <tm...@columbus.rr.com> wrote:
> Rajeesh,
>
> Following your advice, Im think I've about solved the problem.
> I've got one last exception, I hope.
>
> Here is the new iteration of views.py, all other files remain the same.
> In short the page renders to the screen, the problem arises when values are
> submitted
> to the view.
>
> I get an exception "can't multiply sequence by non-int of type 'tuple".
> I've created a new
> function that describes the multiplication operation, that is used within
> the render function, this
> is where the error occcrs. I'm not referencing the variables properly, I
> guess.
>
> def calculation(request):
> """function that computes submission"""
> if request.method == 'POST':
> form = FinanceTable(request.POST)
> if form.is_valid():
> cd =form.cleaned_data
> capital = cd['capital'],
> tax_rate = cd['tax_rate'],
> useage = projfin(request, capital, tax_rate)
> response_dict = {'capital' : capital, 'tax_rate' : tax_rate,
> 'useage' : useage}
> return render_to_response('textplusnumbers.html' , response_dict)
> else:
> form = FinanceTable(
> initial={'capital' : 1000, 'tax_rate' : .07}
> )
>
> return render_to_response('textplusnumbers.html' , {'form' : form})
>
> def projfin(request, capital, tax_rate):
> useage = capital * tax_rate
> return useage
>
>
>
>
>
>
>
>
>
> On Mon, Mar 19, 2012 at 1:10 PM, Rajeesh Nair <rajeeshrn...@gmail.com>wrote:
>
>>
>> Your FormClass expects all 3 fields to be optional (*required=False*).
>> But your code in view always expects them to have integer values. And you
>> end up multiplying values from two blank fields! Either you provide some
>> default value to the fields or rewrite view to use
>> *form.cleaned_data.get*with a default value as 2nd argument to it.
>>
>>
>> On Monday, March 19, 2012 9:11:27 PM UTC+5:30, bolivar4 wrote:
>>
>>>
>>>
>>> "unsupported operand type(s) for *: 'NoneType' and 'NoneType'"
>>>
>>>
>>> class FinanceTable(forms.Form):
>>> capital = forms.IntegerField(required=**False)
>>> tax_rate = forms.DecimalField(required=**False)
>>> useage = forms.IntegerField(required=**False)
>>>
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