main
 1# frozen_string_literal: true
 2
 3class AlterUsersMakeEmailNotNull < ActiveRecord::Migration[5.2]
 4  def up
 5    change_column :users, :email, :string, null: false
 6    add_index :users, :email
 7  end
 8
 9  def down
10    change_column :users, :email, :string
11    remove_index :users, :email
12  end
13end