How to add new attribute to ActiveRecord

Question

After getting all values from model, I want to add another custom attribute to the ActiveRecord class (this attribute is not a column in db) so that I could use it in view, but

Answer 1

try this

class Test < ActiveRecord::Base
  attr_accessor :newattr
end

you can access it like

@test = Test.new
@test.newattr = "value"

As you may notice this a property, not a hash. so it uses . syntax. however, if you need it to behave like an hash you can do this without defining a new attribute

@test.all
@test.each do |elm|
    new_elm = {}
    new_elm[:newatt] = 'added string'
end

Lastly, I am not exactly sure what you are trying to do. if this doesn't make sense to you, kindly rephrase your question so we can understand the problem better.