Remove document in doctrines

app/models/doctrine.rb

@@ -1,6 +1,4 @@
 class Doctrine < ApplicationRecord
-  belongs_to :document, polymorphic: true, optional: false
-
   has_many :doctrine_jurisprudences, dependent: :destroy
   has_many :jurisprudences, through: :doctrine_jurisprudences
 

db/migrate/20220215025319_remove_document_type_and_document_id_in_doctrines.rb

@@ -0,0 +1,6 @@
+class RemoveDocumentTypeAndDocumentIdInDoctrines < ActiveRecord::Migration[6.1]
+  def up
+    remove_column :doctrines, :document_type, :string
+    remove_column :doctrines, :document_id, :integer
+  end
+end