Ruby on Rails

I have created class using `Active Model`,it is working as expected ,but am having few requirements

1) I want to use `all` method for that `class`.

2) Same way i want to use some query methods like `where` method for that `class`.

3) I want to create `ActiveRecord::Relation` so that i can do method chaining.


See my class:

    require 'active_model'
    require 'active_record'


    class Message
     include ActiveModel::Validations
     include ActiveModel::Conversion
     extend ActiveModel::Naming
 
     attr_accessor :name, :email, :content
 
     validates_presence_of :name
     validates_length_of :content, :maximum => 500
 
     def initialize(attributes = {})
      attributes.each do |name, value|
       send("#{name}=", value)
      end
     end
 
     def persisted?
       false
     end
    end


     m = Message.new(:email => "test",:name => "test")
     puts m.name   #=> test
     puts m.class  #=> Message
     puts m.valid? #=> true

     Message.all
     Message.where(:name => "test")

some more methods:

     where
     limit
     having
     group
     select
     order
     uniq

Could you please help me to achieve this or give some guide lines.