ruby on rails - How to merge two instance of a Model like hashes -

i can merge 2 hashes this:

array = [{a: 1, b: 2, c: 3}, {a:3, b:1, d:5}] array[0].merge(array[1]) |k, v1, v2|   [v1, v2].compact.max end 

and want merge 2 activerecord::base instances , create new one. activerecord::base class doesn't have merge method.

how can merge 2 instances of rails model , create new instance?

activerecord::base#attributes returns hash. these hashes can merge values of rails model instances.