Exception newtonsoft. JSON. jsonserializationexception: self referencing loop occurs when the activerecord object is serialized in JSON.

This is mainly because lazy = true is set in the default attribute of the activerecord object, so session is used in the query. the load output is a proxy object. Obviously, the jsonhelper of monorail has not solved this problem.
Someone proposed a solution at the JSON. Net (http://www.codeplex.com/Json) Forum,
Http://www.codeplex.com/Json/Thread/View.aspx? Threadid = 18188

However, using the slicedfindall method provided by Ar can directly return a real object for serialization. Among them, findfirst and findone are all queried using this method. Therefore, it can be serialized normally.