Add pasting type logic

db/migrate/1_create_acts_as_pasting_pastings.rb

@@ -4,7 +4,6 @@ class CreateActsAsPastingPastings < ActiveRecord::Migration[5.2]
       t.references :pasteable, polymorphic: true, index: { name: 'acts_as_pasting_pasteable' }
       t.references :pasted, polymorphic: true, index: { name: 'acts_as_pasting_pasted' }
       t.string :type, index: true
-      t.string :pasting_type
 
       t.timestamps
     end

lib/acts_as_pasting/pasting.rb

@@ -20,6 +20,8 @@
 #
 module ActsAsPasting
   class Pasting < ApplicationRecord
+    self.inheritance_column = :_type_disabled
+
     belongs_to :pasteable, polymorphic: true
     belongs_to :pasted, polymorphic: true
   end