django.view

class SupplierListView(TemplateView):

    template_name   = 'supplier/list.html'

    def get(self, request, *args, **kwargs):
        suppliers = Supplier.objects.all()
        return self.render_to_response({
            'suppliers':suppliers
        })

class DeleteSupplierView(TemplateView):

    def post(self, request, *args, **kwargs):
        try:
            sup = Supplier.objects.filter(id=kwargs.get('sup_id', None)).first()
            if sup:
                return HttpResponse(True)
        except ValidationError:
            pass
        raise Http404('Supplier not exist !')


class EditSupplierView(TemplateView):

    template_name   = 'supplier/edit.html'

    def get(self, request, *args, **kwargs):
        try:
            sup = Supplier.objects.filter(id=kwargs.get('sup_id', None)).first()
            if sup:
                return self.render_to_response({
                    'supplier':sup
                })
        except ValidationError:
            pass
        return redirect('supplier.add')

class AddSupplierView(TemplateView):

    template_name   = 'supplier/add.html'

    def get(self, request, *args, **kwargs):
        return self.render_to_response({})

    def post(self, request, *args, **kwargs):
        return redirect('supplier.edit',kwargs={'sup_id':0})