解决ruby2.3执行sql出错的bug

config/initializers/10-patches.rb

@@ -1,5 +1,15 @@
+#coding=utf-8
+#
 require 'active_record'
 
+## ruby2.3在这个rails版本的activerecord有bug, 直接用respond_to?(:to_proc)作判断
+#而ruby2.3中hash可以返回 to_proc
+if RUBY_VERSION > '2.3' && Rails.version < '3.2.22.3'
+  Hash.class_eval do
+    remove_method :to_proc
+  end
+end
+
 module ActiveRecord
   class Base
     include Redmine::I18n