dawarich/db/migrate/20251028130433_add_omniauth_to_users.rb

class AddOmniauthToUsers < ActiveRecord::Migration[8.0]
  def change
    add_column :users, :provider, :string unless column_exists? :users, :provider
    add_column :users, :uid, :string unless column_exists? :users, :uid
    add_index :users, [:provider, :uid], unique: true, algorithm: :concurrently
  end
end