minor: better error message for DB#command

2010-07-12 14:33:52 -04:00 · 2010-07-12 14:33:52 -04:00 · a00fb21d37
parent 86c50a0555
commit a00fb21d37
1 changed files with 3 additions and 1 deletions
--- a/lib/mongo/db.rb
+++ b/lib/mongo/db.rb
@ -466,7 +466,9 @@ module Mongo
      result = Cursor.new(system_command_collection,
        :limit => -1, :selector => selector, :socket => sock).next_document

-      if result.nil? || (check_response && !ok?(result))
+      if result.nil?
+        raise OperationFailure, "Database command '#{selector.keys.first}' failed: returned null."
+      elsif (check_response && !ok?(result))
        raise OperationFailure, "Database command '#{selector.keys.first}' failed: #{result.inspect}"
      else
        result