lingo: return to basket cell page if no item to pay selected (#9992)

combo/apps/lingo/views.py

@@ -26,6 +26,8 @@ from django.utils import timezone
 from django.views.decorators.csrf import csrf_exempt
 from django.views.generic import View, ListView, TemplateView
 from django.conf import settings
+from django.contrib import messages
+from django.utils.translation import ugettext_lazy as _
 
 import eopayment
 
@@ -129,6 +131,9 @@ class PayView(View):
     def post(self, request, *args, **kwargs):
         regie_id = request.POST.get('regie')
         next_url = request.POST.get('next_url')
+        if not request.POST.getlist('item'):
+            messages.warning(request, _('You have to choose at least one item to pay'))
+            return HttpResponseRedirect(next_url)
         if regie_id:
             regie = Regie.objects.get(pk=regie_id)
             if regie.is_remote():