5.11-12 implemented migration

app/models/beer.rb

@@ -6,7 +6,7 @@ class Beer < ApplicationRecord
   has_many :users, through: :ratings
 
   validates :name, presence: true
-  validates :style, presence: true
+  validates :style_id, presence: true
 
   def to_s
     "#{name}, #{(Brewery.find_by_id brewery_id).name}"

app/models/style.rb

@@ -0,0 +1,2 @@
+class Style < ApplicationRecord
+end