On 31 January 2013 13:55, Jim Ruther Nill <[email protected]> wrote: > > > > On Thu, Jan 31, 2013 at 9:52 PM, Fabian Peter <[email protected]> wrote: >> >> 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. > > > @test contains an array of products. to get the prices, try > > @test.each do |product| > product.prices.each do |price| > p price.price > end > end
But you don't need .includes, @test = Product.all will work fine (though I would prefer @products =Product.all since that is what they are). If you inspect @test you will not see the prices, but as soon as you ask for the prices it will fetch them. Such is the magic or Rails. I am sure readers here are bored with me suggesting to beginners that they work right through a good tutorial such as railstutorial.org, which is free to use online, but it is definitely a good idea as it would give you a good introduction to the basics of rails. Also look through the Rails Guides. For some reason I am rarely thanked for offering this advice. :( Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
