From e79531fda868245c4514a27c5f2b35938f242cec Mon Sep 17 00:00:00 2001
From: Lance Edgar <ledgar@sacfoodcoop.com>
Date: Fri, 14 Aug 2015 15:27:52 -0500
Subject: [PATCH] Add `CurrencyFieldRenderer`.

Also clean up the subpackage root a little bit.
---
 tailbone/forms/renderers/__init__.py | 25 +++++++++++--------------
 tailbone/forms/renderers/common.py   | 15 +++++++++++++++
 tailbone/forms/renderers/products.py |  5 -----
 3 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/tailbone/forms/renderers/__init__.py b/tailbone/forms/renderers/__init__.py
index e7b081b6..7c57f425 100644
--- a/tailbone/forms/renderers/__init__.py
+++ b/tailbone/forms/renderers/__init__.py
@@ -24,22 +24,19 @@
 FormAlchemy Field Renderers
 """
 
-from tailbone.forms.renderers.common import (
-    AutocompleteFieldRenderer,
-    DateTimeFieldRenderer,
-    DecimalFieldRenderer,
-    EnumFieldRenderer,
-    YesNoFieldRenderer,
-    )
+from .common import (AutocompleteFieldRenderer,
+                     DecimalFieldRenderer, CurrencyFieldRenderer,
+                     DateTimeFieldRenderer,
+                     EnumFieldRenderer, YesNoFieldRenderer)
 
-from .people import (
-    PersonFieldRenderer, PersonFieldLinkRenderer,
-    CustomerFieldRenderer, CustomerFieldLinkRenderer,
-    UserFieldRenderer)
+from .people import (PersonFieldRenderer, PersonFieldLinkRenderer,
+                     CustomerFieldRenderer, CustomerFieldLinkRenderer,
+                     UserFieldRenderer)
 
 from .employees import EmployeeFieldRenderer
 
-from tailbone.forms.renderers.products import GPCFieldRenderer
-from tailbone.forms.renderers.products import *
+from .products import (ProductFieldRenderer, GPCFieldRenderer,
+                       BrandFieldRenderer, VendorFieldRenderer,
+                       PriceFieldRenderer, PriceWithExpirationFieldRenderer)
 
-from tailbone.forms.renderers.stores import StoreFieldRenderer
+from .stores import StoreFieldRenderer
diff --git a/tailbone/forms/renderers/common.py b/tailbone/forms/renderers/common.py
index 1638ece1..1769080e 100644
--- a/tailbone/forms/renderers/common.py
+++ b/tailbone/forms/renderers/common.py
@@ -147,6 +147,21 @@ class DecimalFieldRenderer(formalchemy.FieldRenderer):
         return fmt.format(value)
 
 
+class CurrencyFieldRenderer(formalchemy.FieldRenderer):
+    """
+    Sort of generic field renderer for currency values.
+    """
+
+    def __init__(self, field):
+        super(CurrencyFieldRenderer, self).__init__(field)
+
+    def render_readonly(self, **kwargs):
+        value = self.raw_value
+        if value is None:
+            return ''
+        return '$ {0:0,.2f}'.format(value)
+
+
 class YesNoFieldRenderer(CheckBoxFieldRenderer):
 
     def render_readonly(self, **kwargs):
diff --git a/tailbone/forms/renderers/products.py b/tailbone/forms/renderers/products.py
index 145659c9..1857d791 100644
--- a/tailbone/forms/renderers/products.py
+++ b/tailbone/forms/renderers/products.py
@@ -34,11 +34,6 @@ from webhelpers.html import literal
 from tailbone.util import pretty_datetime
 
 
-__all__ = ['ProductFieldRenderer', 'GPCFieldRenderer',
-           'BrandFieldRenderer', 'VendorFieldRenderer',
-           'PriceFieldRenderer', 'PriceWithExpirationFieldRenderer']
-
-
 class ProductFieldRenderer(AutocompleteFieldRenderer):
     """
     Renderer for :class:`rattail.db.model.Product` instance fields.