add expiration date to current price in products grid

rattail/pyramid/forms.py

@@ -29,7 +29,9 @@
 import formalchemy
 # from formalchemy.fields import SelectFieldRenderer
 
+import edbob
 from edbob.pyramid import Session
+from edbob.pyramid.forms import pretty_datetime
 
 import rattail
 
@@ -82,6 +84,20 @@ class PriceFieldRenderer(formalchemy.FieldRenderer):
         return ''
 
 
+class PriceWithExpirationFieldRenderer(PriceFieldRenderer):
+    """
+    Price field renderer which also displays the expiration date, if present.
+    """
+
+    def render_readonly(self, **kwargs):
+        res = super(PriceWithExpirationFieldRenderer, self).render_readonly(**kwargs)
+        if res:
+            price = self.field.raw_value
+            if price.ends:
+                res += '  (%s)' % pretty_datetime(price.ends, from_='utc')
+        return res
+
+
 class UpcFieldRenderer(formalchemy.TextFieldRenderer):
     """
     Handles rendering for the product UPC field.

rattail/pyramid/views/products.py

@@ -26,6 +26,7 @@
 ``rattail.pyramid.views.products`` -- Product Views
 """
 
+from webhelpers.html import literal
 from webhelpers.html.tags import link_to
 
 from sqlalchemy.orm import joinedload
@@ -40,7 +41,8 @@ from edbob.pyramid import Session
 
 import rattail
 import rattail.labels
-from rattail.pyramid.forms import UpcFieldRenderer, PriceFieldRenderer
+from rattail.pyramid.forms import (UpcFieldRenderer, PriceFieldRenderer,
+                                   PriceWithExpirationFieldRenderer)
 
 
 class ProductGrid(GridView):
@@ -120,7 +122,7 @@ class ProductGrid(GridView):
         g = self.make_grid(data, config)
         g.upc.set(renderer=UpcFieldRenderer)
         g.regular_price.set(renderer=PriceFieldRenderer)
-        g.current_price.set(renderer=PriceFieldRenderer)
+        g.current_price.set(renderer=PriceWithExpirationFieldRenderer)
         g.configure(
             include=[
                 g.upc.label("UPC"),
@@ -129,8 +131,8 @@ class ProductGrid(GridView):
                 g.size,
                 # g.department,
                 g.subdepartment,
-                g.regular_price.label("Reg Price"),
-                g.current_price.label("Cur Price"),
+                g.regular_price.label("Reg. Price"),
+                g.current_price.label(literal("Cur. Price  (Exp.)")),
                 ],
             readonly=True)