unicode: Implemented comparisons between *_lazy() objects. comparing

ugettext_lazy() instances to each other now works, for example.


git-svn-id: http://code.djangoproject.com/svn/django/branches/unicode@5489 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 12 insertions, 0 deletions

diff --git a/django/utils/functional.py b/django/utils/functional.py
index cd34809837..574f433fd5 100644
--- a/django/utils/functional.py
+++ b/django/utils/functional.py
@@ -64,6 +64,18 @@ def lazy(func, *resultclasses):
             else:
                 return Promise.__str__(self)
 
+        def __cmp__(self, rhs):
+            if self._delegate_str:
+                s = str(self.__func(*self.__args, **self.__kw))
+            elif self._delegate_unicode:
+                s = unicode(self.__func(*self.__args, **self.__kw))
+            else:
+                s = self.__func(*self.__args, **self.__kw)
+            if isinstance(rhs, Promise):
+                return -cmp(rhs, s)
+            else:
+                return cmp(s, rhs)
+
         def __mod__(self, rhs):
             if self._delegate_str:
                 return str(self) % rhs