Ruby on Rails

Hello,

I'm trying to join 2 tables with ruby on rails 3.2.

rails generate model product name:string
rails generate model price product_id:integer price:integer
date:datetime

product.rb:
class Product < ActiveRecord::Base
  has_many :prices
end

price.rb:
class Price < ActiveRecord::Base
  belongs_to :product
end

What is the most efficient way to get all products including the latest
price into the View.

Some tries didnt work for this:

@test = Product.includes(:prices).all
I didnt find anything about the prices in @test.

Thanks for help!

Fabian

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