Replaced Quantity 'primary' attr with ColumnView model

lib/body_tracking/project_patch.rb

@@ -5,8 +5,13 @@ module BodyTracking
       has_many :ingredients, -> { order "name" }, dependent: :destroy
 
       has_many :sources, dependent: :destroy
+      has_many :column_views, dependent: :destroy
       has_many :quantities, -> { order "lft" }, dependent: :destroy
       has_many :units, dependent: :destroy
+
+      def nutrients_column_view
+        self.column_views.find_or_create_by(name: 'Nutrients', domain: :diet)
+      end
     end
   end
 end