# frozen_string_literal: true class ChangeUserEmailsPrimaryIndex < ActiveRecord::Migration[5.1] def up remove_index :user_emails, [:user_id, :primary] add_index :user_emails, [:user_id, :primary], unique: true, where: '"primary"' end def down remove_index :user_emails, [:user_id, :primary] add_index :user_emails, [:user_id, :primary], unique: true end end