Rails 4无法批量分配attr_accessor方法

Question

I have the following model:

class Something < ActiveRecord::Base
   attr_accessor :properties
   serialize :properties
end

When I call:

thing = Something.new({name:"foo",properties:{key_1:"val"}})

thing has name populated but not properties. I can manually assign properties as such:

thing.properties = {key_1:"val"}

and that works fine, but I cannot make it work through mass assignment.

Am I missing something?

Answer 1

Rails 4 uses strong parameters in the controller. So while having your attrs set in the model, you still have to permit params in the controller.

This is the line to look for/add into your controller:

def person_params
  params.require(:thing).permit(:parm1, :param2)
end