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-rw-r--r--app/controllers/watchers_controller.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/app/controllers/watchers_controller.rb b/app/controllers/watchers_controller.rb
index f0692e31d..023f7e403 100644
--- a/app/controllers/watchers_controller.rb
+++ b/app/controllers/watchers_controller.rb
@@ -134,7 +134,9 @@ class WatchersController < ApplicationController
def find_objets_from_params
klass = Object.const_get(params[:object_type].camelcase) rescue nil
- return unless klass && klass.respond_to?('watched_by')
+ return unless klass && Class === klass # rubocop:disable Style/CaseEquality
+ return unless klass < ActiveRecord::Base
+ return unless klass < Redmine::Acts::Watchable::InstanceMethods
scope = klass.where(:id => Array.wrap(params[:object_id]))
if klass.reflect_on_association(:project)