src/funding/widgets.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 from decimal import Decimal, DecimalException
   6 from django import forms
   7 from django.template.loader import render_to_string
   8
   9
  10 class PerksAmountWidget(forms.Textarea):
  11     @staticmethod
  12     def perks_input_name(name):
  13         return "_%s_perk" % name
  14
  15     def render(self, name, value, attrs=None):
  16         try:
  17             value = Decimal(value)
  18         except DecimalException:
  19             pass
  20         perks = list(self.form_instance.offer.get_perks())
  21         perk_chosen = False
  22         for perk in perks:
  23             if perk.price == value:
  24                 perk.chosen = True
  25                 perk_chosen = True
  26                 break
  27
  28         return render_to_string("funding/widgets/amount.html", {
  29                 "perks": perks,
  30                 "name": name,
  31                 "perks_input_name": self.perks_input_name(name),
  32                 "perk_chosen": perk_chosen,
  33                 "value": value,
  34                 "attrs": attrs,
  35             })
  36
  37     def value_from_datadict(self, data, files, name):
  38         num_str = data.get(self.perks_input_name(name)) or data[name]
  39         return num_str.replace(',', '.')