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Support for price/option drop-down on Buy Now button #13

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Added support for Buy Now button with product/price options. See:
https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_html_buynow_buttons#id08A2G0Y06X4

    fields = {'item_name': 'name',
              'item_options': (('10.00', 'Ten dollars'),
                               ('20.00', 'Twenty dollars')),
              ...
             }
mikery committed Dec 19, 2011
commit e047c9025ce02f661bdb5cb3c035fb32c241aea5
10 changes: 9 additions & 1 deletion paypal/standard/forms.py
Original file line number Diff line number Diff line change
@@ -4,7 +4,8 @@
from django.conf import settings
from django.utils.safestring import mark_safe
from paypal.standard.conf import *
from paypal.standard.widgets import ValueHiddenInput, ReservedValueHiddenInput
from paypal.standard.widgets import (ValueHiddenInput, ReservedValueHiddenInput,
ItemOptionsInput)
from paypal.standard.conf import (POSTBACK_ENDPOINT, SANDBOX_POSTBACK_ENDPOINT,
RECEIVER_EMAIL)

@@ -59,6 +60,7 @@ class PayPalPaymentsForm(forms.Form):
item_name = forms.CharField(widget=ValueHiddenInput())
item_number = forms.CharField(widget=ValueHiddenInput())
quantity = forms.CharField(widget=ValueHiddenInput())
item_options = forms.ChoiceField(widget=ItemOptionsInput())

# Subscription Related.
a1 = forms.CharField(widget=ValueHiddenInput()) # Trial 1 Price
@@ -99,6 +101,12 @@ def __init__(self, button_type="buy", *args, **kwargs):
super(PayPalPaymentsForm, self).__init__(*args, **kwargs)
self.button_type = button_type

# If item_options have been specified, populate the item_options select
# with the given choices.
item_options = kwargs['initial'].get('item_options', ())
if item_options:
self.fields['item_options'].choices = item_options

def render(self):
return mark_safe(u"""<form action="%s" method="post">
%s
42 changes: 41 additions & 1 deletion paypal/standard/widgets.py
Original file line number Diff line number Diff line change
@@ -28,4 +28,44 @@ def render(self, name, value, attrs=None):
final_attrs = self.build_attrs(attrs, type=self.input_type)
if value != '':
final_attrs['value'] = force_unicode(value)
return mark_safe(u'<input%s />' % flatatt(final_attrs))
return mark_safe(u'<input%s />' % flatatt(final_attrs))

class ItemOptionsInput(ValueHiddenInput):
""" Displays a list of options on the PayPal button. Each option has a
different price.
choices is a tuple of amount/name pairs:
(('10.00', 'Ten Dollars'),
('20.00', 'Twenty Dollars'))
"""
def render(self, name, value, attrs=None, choices=()):
if not self.choices:
return ''

hiddens = []
options = []
count = 0
hidden = """<input type="hidden" name="option_select%(count)s" value="%(name)s">
<input type="hidden" name="option_amount%(count)s" value="%(amount)s">
"""
option = '<option value="%(name)s">%(name)s</option>'

for amount, opt_name in self.choices:
vars = {'count': count, 'amount': amount, 'name': opt_name}
options.append(option % vars)
hiddens.append(hidden % vars)
count += 1

output = """<table><tr><td>
<input type="hidden" name="on0" value="%(name)s">%(name)s
</td></tr><tr><td>
<select name="os0">
%(options)s
</select></table>
<input type="hidden" name="option_index" value="0">
%(hiddens)s
""" % {'options': '\n'.join(options),
'hiddens': '\n'.join(hiddens),
'name': 'Amount'}

return mark_safe(output)