Basic working invoice system. Need to add a way to create invoices.

RIGS/finance.py

@@ -0,0 +1,60 @@
+from django.core.urlresolvers import reverse_lazy
+from django.http import Http404, HttpResponseRedirect
+from django.views import generic
+from django.shortcuts import get_object_or_404
+from django.contrib import messages
+
+from RIGS import models
+
+
+class InvoiceIndex(generic.ListView):
+    model = models.Invoice
+    template_name = 'RIGS/invoice_list.html'
+
+    def get_queryset(self):
+        active = self.model.objects.filter(void=False).select_related('payment_set')
+        set = []
+        for invoice in active:
+            if invoice.balance != 0:
+                set.append(invoice)
+        return set
+
+
+class InvoiceDetail(generic.DetailView):
+    model = models.Invoice
+
+
+class InvoiceVoid(generic.View):
+    def get(self, request, *args, **kwargs):
+        pk = kwargs.get('pk')
+        object = get_object_or_404(models.Invoice, pk=pk)
+        object.void = not object.void
+        object.save()
+
+        if object.void:
+            return HttpResponseRedirect(reverse_lazy('invoice_list'))
+        return HttpResponseRedirect(reverse_lazy('invoice_detail', kwargs={'pk': object.pk}))
+
+
+class PaymentCreate(generic.CreateView):
+    model = models.Payment
+
+    def get_initial(self):
+        initial = super(generic.CreateView, self).get_initial()
+        invoicepk = self.request.GET.get('invoice', self.request.POST.get('invoice', None))
+        if invoicepk == None:
+            raise Http404()
+        invoice = get_object_or_404(models.Invoice, pk=invoicepk)
+        initial.update({'invoice': invoice})
+        return initial
+
+    def get_success_url(self):
+        messages.info(self.request, "location.reload()")
+        return reverse_lazy('closemodal')
+
+
+class PaymentDelete(generic.DeleteView):
+    model = models.Payment
+
+    def get_success_url(self):
+        return self.request.POST.get('next')