luxxi

class ApplicationController < ActionController::Base
  protect_from_forgery with: :null_session, if: Proc.new { |c| c.request.format == 'application/json' }
end

luxxi

#Using in single model
def self.update_or_create(attributes)
  obj = first || new
  obj.assign_attributes(attributes)
  obj
end
	
#User.where(email: "a@b.com").update_or_create(email: "d@e.com")