Add util.pretty_quantity() convenience function

rattail/util.py

@@ -127,6 +127,18 @@ def prettify(text):
     return ' '.join([x.capitalize() for x in words])
 
 
+def pretty_quantity(value):
+    """
+    Return a "pretty" version of the given value, as string.  This is meant primarily
+    for use with things like order quantities, so that e.g. 1.0000 => 1
+    """
+    if value is None:
+        return ''
+    if int(value) == value:
+        return unicode(int(value))
+    return unicode(value)
+
+
 def progress_loop(func, items, factory, *args, **kwargs):
     """
     This will iterate over ``items`` and call ``func`` for each.  If a progress