# frozen_string_literal: true class DropPostsUploads < ActiveRecord::Migration[4.2] def up drop_table :posts_uploads end def down create_table :posts_uploads, id: false do |t| t.integer :post_id t.integer :upload_id end add_index :posts_uploads, :post_id add_index :posts_uploads, :upload_id add_index :posts_uploads, %i[post_id upload_id], unique: true end end