upto 2.9

app/controllers/beers_controller.rb

@@ -13,6 +13,7 @@ class BeersController < ApplicationController
   # GET /beers/new
   def new
     @beer = Beer.new
+    @breweries = Brewery.all
   end
 
   # GET /beers/1/edit
@@ -25,7 +26,7 @@ class BeersController < ApplicationController
 
     respond_to do |format|
       if @beer.save
-        format.html { redirect_to beer_url(@beer), notice: "Beer was successfully created." }
+        format.html { redirect_to beers_path, notice: "Beer was successfully created." }
         format.json { render :show, status: :created, location: @beer }
       else
         format.html { render :new, status: :unprocessable_entity }

app/models/beer.rb

@@ -9,4 +9,8 @@ class Beer < ApplicationRecord
     end
     return average
   end
+
+  def to_s
+    "#{self.name}, #{(Brewery.find_by_id self.brewery_id).name}"
+  end
 end

app/views/beers/_form.html.erb

@@ -23,7 +23,7 @@
 
   <div>
     <%= form.label :brewery_id, style: "display: block" %>
-    <%= form.number_field :brewery_id %>
+    <%= form.select :brewery_id, options_from_collection_for_select(@breweries, :id, :name) %>
   </div>
 
   <div>

app/views/ratings/new.html.erb

@@ -1,7 +1,7 @@
 <h2>Create new rating</h2>
 
 <%= form_for(@rating) do |f| %>
-  <%= f.select :beer_id, options_from_collection_for_select(@beers, :id, :name) %>
+  <%= f.select :beer_id, options_from_collection_for_select(@beers, :id, :to_s) %>
   score: <%= f.number_field :score %>
   <%= f.submit %>
 <% end %>