python/ovs/db/types: Fix English grammar for enums with one member.

Before this change, enums that have one member were formatted as, e.g.: "one of xyzzy, , or " This changes them to be formatted as: "must be xyzzy" which makes much more sense. (An enum with one member may make some sense if you are trying to leave the possibility for future expansion.) Signed-off-by: Ben Pfaff <[email protected]>
krjoshi · Feb 4, 2013 · 7c1c769 · 7c1c769
1 parent 8748ec7
commit 7c1c769
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/python/ovs/db/types.py b/python/ovs/db/types.py
@@ -287,7 +287,9 @@ def constraintsToEnglish(self, escapeLiteral=returnUnchanged,
         if self.enum:
             literals = [value.toEnglish(escapeLiteral)
                         for value in self.enum.values]
-            if len(literals) == 2:
+            if len(literals) == 1:
+                english = 'must be %s' % (literals[0])
+            elif len(literals) == 2:
                 english = 'either %s or %s' % (literals[0], literals[1])
             else:
                 english = 'one of %s, %s, or %s' % (literals[0],