add working model relationships and destroy methods

T2/models.rb

@@ -4,13 +4,14 @@ ActiveRecord::Base.establish_connection :adapter => "sqlite3",
                                         :database => "steamdb.sqlite3" 
 
 class Game < ActiveRecord::Base; 
-	has_one :price
+	has_one :price, dependent: :destroy
 	belongs_to :developer
-	has_and_belongs_to_many :categories
+	has_many :category_games
+	has_many :categories, through: :category_games, dependent: :destroy
 end
 
 class Developer < ActiveRecord::Base; 
-	has_many :games
+	has_many :games, dependent: :destroy
 end
 
 class Price < ActiveRecord::Base;
@@ -18,5 +19,11 @@ class Price < ActiveRecord::Base;
 end
 
 class Category < ActiveRecord::Base;
-	has_and_belongs_to_many :games
+	has_many :category_games
+	has_many :games, through: :category_games, dependent: :destroy
+end
+
+class CategoryGame < ActiveRecord::Base;
+	belongs_to :category 
+	belongs_to :game
 end
\ No newline at end of file

T2/schema.rb

@@ -28,7 +28,7 @@ ActiveRecord::Base.connection.create_table :categories do |t|
   t.text :description
 end
 
-ActiveRecord::Base.connection.create_table :categories_games, id: false do |t|
+ActiveRecord::Base.connection.create_table :category_games, id: false do |t|
   t.references :category
   t.references :game
-end
\ No newline at end of file
+end