Adds checkout view, which generates an invoice, and then redirects to the invoice itself.

registrasion/controllers/invoice.py

@@ -59,20 +59,23 @@ class InvoiceController(object):
 
         # TODO: calculate line items.
         product_items = rego.ProductItem.objects.filter(cart=cart)
+        product_items = product_items.order_by(
+            "product__category__order", "product__order"
+        )
         discount_items = rego.DiscountItem.objects.filter(cart=cart)
         invoice_value = Decimal()
         for item in product_items:
+            product = item.product
             line_item = rego.LineItem.objects.create(
                 invoice=invoice,
-                description=item.product.name,
+                description="%s - %s" % (product.category.name, product.name),
                 quantity=item.quantity,
-                price=item.product.price,
+                price=product.price,
             )
             line_item.save()
             invoice_value += line_item.quantity * line_item.price
 
         for item in discount_items:
-
             line_item = rego.LineItem.objects.create(
                 invoice=invoice,
                 description=item.discount.description,

registrasion/templates/invoice.html

@@ -0,0 +1,37 @@
+<!--- Sample template. Move elsewhere once it's ready to go. -->
+
+{% extends "site_base.html" %}
+{% block body %}
+
+<h1>Invoice {{ invoice.id }}</h1>
+
+<ul>
+  <li>Void: {{ invoice.void }}</li>
+  <li>Paid: {{ invoice.paid }}</li>
+</ul>
+
+<table>
+  <tr>
+    <th>Description</th>
+    <th>Quantity</th>
+    <th>Price/Unit</th>
+    <th>Total</th>
+  </tr>
+  {% for line_item in invoice.lineitem_set.all %}
+    <tr>
+      <td>{{line_item.description}}</td>
+      <td>{{line_item.quantity}}</td>
+      <td>{{line_item.price}}</td>
+      <td><!-- multiply --> FIXME</td>
+    </tr>
+  {% endfor %}
+  <tr>
+    <th>TOTAL</th>
+    <td></td>
+    <td></td>
+    <td>{{ invoice.value }}</td>
+  </tr>
+</table>
+
+
+{% endblock %}

registrasion/urls.py

@@ -3,5 +3,6 @@ from django.conf.urls import url, patterns
 urlpatterns = patterns(
     "registrasion.views",
     url(r"^category/([0-9]+)$", "product_category", name="product_category"),
-    #    url(r"^category$", "product_category", name="product_category"),
+    url(r"^checkout$", "checkout", name="checkout"),
+    url(r"^invoice/([0-9]+)$", "invoice", name="invoice"),
 )

registrasion/views.py

@@ -1,11 +1,13 @@
 from registrasion import forms
 from registrasion import models as rego
 from registrasion.controllers.cart import CartController
+from registrasion.controllers.invoice import InvoiceController
 
 from django.contrib.auth.decorators import login_required
 from django.core.exceptions import ObjectDoesNotExist
 from django.db import transaction
 from django.forms import formset_factory
+from django.shortcuts import redirect
 from django.shortcuts import render
 from functools import partial, wraps
 
@@ -55,3 +57,28 @@ def product_category(request, category_id):
     }
 
     return render(request, "product_category.html", data)
+
+@login_required
+def checkout(request):
+    ''' Runs checkout for the current cart of items, ideally generating an
+    invoice. '''
+
+    current_cart = CartController.for_user(request.user)
+    current_invoice = InvoiceController.for_cart(current_cart.cart)
+
+    return redirect("invoice", current_invoice.invoice.id)
+
+
+@login_required
+def invoice(request, invoice_id):
+    ''' Displays an invoice for a given invoice id. '''
+
+    invoice_id = int(invoice_id)
+    inv = rego.Invoice.objects.get(pk=invoice_id)
+    current_invoice = InvoiceController(inv)
+
+    data = {
+        "invoice": current_invoice.invoice,
+    }
+
+    return render(request, "invoice.html", data)