Added checkout error page.

ECOM-2516

lms/djangoapps/commerce/urls.py

@@ -9,5 +9,6 @@ from commerce import views
 urlpatterns = patterns(
     '',
     url(r'^checkout/cancel/$', views.checkout_cancel, name='checkout_cancel'),
+    url(r'^checkout/error/$', views.checkout_error, name='checkout_error'),
     url(r'^checkout/receipt/$', views.checkout_receipt, name='checkout_receipt'),
 )

lms/djangoapps/commerce/views.py

@@ -22,6 +22,13 @@ def checkout_cancel(_request):
     return render_to_response("commerce/checkout_cancel.html", context)
 
 
+@csrf_exempt
+def checkout_error(_request):
+    """ Checkout/payment error view. """
+    context = {'payment_support_email': microsite.get_value('payment_support_email', settings.PAYMENT_SUPPORT_EMAIL)}
+    return render_to_response("commerce/checkout_error.html", context)
+
+
 @csrf_exempt
 @login_required
 def checkout_receipt(request):

lms/templates/commerce/checkout_error.html

@@ -0,0 +1,12 @@
+<%! from django.utils.translation import ugettext as _ %>
+
+<%inherit file="../main.html" />
+
+<%block name="pagetitle">${_("Checkout Error")}</%block>
+
+
+<section class="container">
+    <h1>${_("Checkout Error")}</h1>
+    ${ _(u"An error has occurred with your payment. <b>You have not been charged.</b> Please try to submit your payment again. If this problem persists, contact {email}.").format(
+    email="<a href=\"mailto:{email}\">{email}</a>".format(email=payment_support_email)) }
+</section>