Elastic Search config

Rails
1

I have a model and inserted some data for that in database already. Now
I
want to configure elasticsearch with that model. When I try to search I
could not find any record. I expect 2 records to be returned. I am
using
tire gem. Following the code sample:

class MyModel < ActiveRecord::Base
attr_accessible :name

include Tire::Model::Search
include Tire::Model::Callbacks

def self.search(params)

#tried update_index but shows undefined variable

#to map with name which is already in database.
tire.mapping do
  indexes :name, :type => 'string', :index => :not_analyzed
end

tire.search(load: true) do
  query {string params[:query]} if params[:query].present?
end

end
end

I am calling in controller like this:
MyModel.search(params) # where params[:query] = “Anand Soni”

I want to know that Would tire load the datas which are already inserted
in
database?
What I am missing in MyModel? I have seen railscast first and find that
it
will index that data when it would create.

Thanks,
Anand Soni