class CreateAccountMigrations < ActiveRecord::Migration[5.2] def change create_table :account_migrations do |t| t.belongs_to :account, foreign_key: { on_delete: :cascade } t.string :acct, null: false, default: '' t.bigint :followers_count, null: false, default: 0 t.belongs_to :target_account, foreign_key: { to_table: :accounts, on_delete: :nullify } t.timestamps end end end