lpr-partynest/app/models/user_omniauth.rb

# frozen_string_literal: true

class UserOmniauth < ApplicationRecord
  ################
  # Associations #
  ################

  belongs_to :user

  belongs_to :assumed_user,
             class_name: 'User',
             primary_key: :email,
             foreign_key: :email,
             inverse_of: false,
             autosave: false

  ###############
  # Validations #
  ###############

  validates :provider, presence: true, uniqueness: { scope: :remote_id }

  validates :remote_id, presence: true

  validates :email, presence: true

  validates :assumed_user, inclusion: { in: :expected_users }

private

  def expected_users
    [nil, user]
  end
end