Add currency tag where currency can be passed in

Needed when your site starts supporting multicurrency things

oscar/templatetags/currency_tags.py

@@ -0,0 +1,19 @@
+from django import template
+from django.conf import settings
+from babel.numbers import format_currency
+
+register = template.Library()
+
+
+@register.simple_tag()
+def currency(value, currency=''):
+    """
+    Render a price in currency notation
+    """
+    if not currency:
+        currency = settings.OSCAR_DEFAULT_CURRENCY
+    kwargs = {'currency': currency}
+    locale = getattr(settings, 'OSCAR_CURRENCY_LOCALE', None)
+    if locale:
+        kwargs['locale'] = locale
+    return format_currency(value, **kwargs)

tests/integration/templatetags/test_currency_filters.py

@@ -5,6 +5,11 @@ from django.test import TestCase
 from django import template
 
 
+def render(template_string, ctx):
+    tpl = template.Template(template_string)
+    return tpl.render(template.Context(ctx))
+
+
 class TestCurrencyFilter(TestCase):
 
     def setUp(self):
@@ -28,3 +33,26 @@ class TestCurrencyFilter(TestCase):
         self.template.render(template.Context({
             'price': ''
         }))
+
+
+class TestCurrencyTag(TestCase):
+
+    def test_renders_uk_price_correctly(self):
+        ctx = {'price': D('10.23')}
+        out = render("{% load currency_tags %}{% currency price 'GBP' %}", ctx)
+        self.assertTrue(u'£10.23' in out)
+
+    def test_renders_us_price_correctly(self):
+        ctx = {
+            'price': D('10.23'),
+            'currency': 'USD'
+        }
+        out = render(
+            "{% load currency_tags %}{% currency price currency %}", ctx)
+        self.assertTrue(u'$10.23' in out)
+
+    def test_uses_default_currency(self):
+        ctx = {'price': D('10.23')}
+        out = render(
+            "{% load currency_tags %}{% currency price currency %}", ctx)
+        self.assertTrue(u'£10.23' in out)