diff options
| -rw-r--r-- | activesupport/lib/active_support/json/encoding.rb | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/json/encoding.rb b/activesupport/lib/active_support/json/encoding.rb index 42a217cedc..e8e9308495 100644 --- a/activesupport/lib/active_support/json/encoding.rb +++ b/activesupport/lib/active_support/json/encoding.rb @@ -6,8 +6,8 @@ module ActiveSupport # Converts a Ruby object into a JSON string. def self.encode(value, options = {}) seen = (options[:seen] ||= []) - raise CircularReferenceError, 'object references itself' if seen.include?(value) - seen << value + raise CircularReferenceError, 'object references itself' if seen.include?(value.object_id) + seen << value.object_id value.send(:rails_to_json, options) ensure seen.pop |