Add hyperlinks to product UPC and description, within main grid

These won't honor the indexing scheme yet, still need to think about
that.

tailbone/views/products.py

@@ -70,6 +70,21 @@ from tailbone.progress import SessionProgress
 #         return query
 
 
+class DescriptionFieldRenderer(fa.TextFieldRenderer):
+    """
+    Renderer for product descriptions within the grid; adds hyperlink.
+    """
+
+    def render_readonly(self, **kwargs):
+        description = self.raw_value
+        if description is None:
+            return ''
+        if kwargs.get('link'):
+            product = self.field.parent.model
+            description = tags.link_to(description, kwargs['link'](product))
+        return description
+
+
 class ProductsView(MasterView):
     """
     Master view for the Product class.
@@ -166,9 +181,16 @@ class ProductsView(MasterView):
         g.filters['vendor_any'] = g.make_filter('vendor_any', self.VendorAny.name, label="Vendor (any)")
                                                 # factory=VendorAnyFilter, joiner=join_vendor_any)
 
-        g.default_sortkey = 'description'
+        g.default_sortkey = 'upc'
+
+        product_link = lambda p: self.get_action_url('view', p)
 
         g.upc.set(renderer=forms.renderers.GPCFieldRenderer)
+        g.upc.attrs(link=product_link)
+
+        g.description.set(renderer=DescriptionFieldRenderer)
+        g.description.attrs(link=product_link)
+
         g.regular_price.set(renderer=forms.renderers.PriceFieldRenderer)
         g.current_price.set(renderer=forms.renderers.PriceFieldRenderer)
         g.configure(