greenlight/db/migrate/20190314152108_rolify_create_roles.rb

# frozen_string_literal: true

class RolifyCreateRoles < ActiveRecord::Migration[5.0]
  def change
    create_table(:roles) do |t|
      t.string :name
      t.references :resource, polymorphic: true

      t.timestamps
    end

    create_table(:users_roles, id: false) do |t|
      t.references :user
      t.references :role
    end

    add_index(:roles, :name)
    add_index(:roles, [:name, :resource_type, :resource_id])
    add_index(:users_roles, [:user_id, :role_id])

    User.all.each do |user|
      user.add_role(:user) if user.roles.blank?
    end
  end
end