Access class variables in functions - Django

Question

I have the following code:

class MyView(View):
    var2 = Choices.objects.get(id=1)
    my_strings = ['0','1','2','3']

    @login_required
    def myfunction(self,request):

        return render(request,
              'app/submit.html',{'my_strings':my_strings, 'var2':var2})

I want to access "var2" and "my_string" variables and display them in the template submit.html. If I use only the function without putting it in a class, everything works fine. But inside the class it shows errors.

Can anybody tell me how to access "var2" and "my_string" class variables in "myfunction" ?

Have you done all the django tutorials? docs.djangoproject.com/en/1.9/intro/tutorial03 — Paul Collingwood
– Paul Collingwood, Commented Jul 25, 2016 at 8:08
Someone posted an answer but now is deleted ? why? that's correct right ? — Raja Simon
– Raja Simon, Commented Jul 25, 2016 at 8:13

Eska · Accepted Answer · 2016-07-25 08:45:22Z

1

You have to use self. In front of class variables.

Your function names in class based views should correspond to what http method you try to use(get, post etc...)

@login_required
def get(self,request):

    return render(request,
          'app/submit.html',{'my_strings':self.my_strings, 'var2':self.var2})

Please also read: https://docs.djangoproject.com/en/1.9/topics/class-based-views/intro/

edited Jul 25, 2016 at 8:45

answered Jul 25, 2016 at 8:13

Eska

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2 Comments

Tim Over a year ago

I did this but it shows an error: __init__() takes 1 positional argument but 2 were given

Eska Over a year ago

stacktrace? need some more info.

Raja Simon · Accepted Answer · 2016-07-25 08:51:26Z

0

You don't have to write custom function to dispatch request...Django internally have the GET and POST method to do that... And also preferred way to handle login required is method_decorator

from django.utils.decorators import method_decorator 

@method_decorator(login_required, name='dispatch')
class MyView(View):

    string = "your string"

    def dispatch(self, *args, **kwargs):
        return super(MyView, self).dispatch(*args, **kwargs)

    def get(self, request):
        return render(request, 'template', {'string': self.string})

edited Jul 25, 2016 at 8:51

answered Jul 25, 2016 at 8:45

Raja Simon

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