old-zsterminator/app/models/reservation.rb

class Reservation < ApplicationRecord
  belongs_to :company
  belongs_to :customer,
             primary_key: %i[first_name surname original_phone],
             query_constraints: %i[customer_first_name customer_surname customer_original_phone]
  belongs_to :team

  validates :company_id, presence: true
  validates :team_id, presence: true

  # Remove customer_id validation since we're using composite key
  validates :customer_first_name, :customer_surname, :customer_original_phone, presence: true

  # Add validation to ensure customer exists
  validate :customer_must_exist

  private

  def customer_must_exist
    unless Customer.exists?(first_name: customer_first_name,
                            surname: customer_surname,
                            original_phone: customer_original_phone)
      errors.add(:base, "Selected customer does not exist")
    end
  end
end

# Moved to app/serializers/reservation_serializer.rb
# class ReservationSerializer < ActiveModel::Serializer
#   attributes :id, :company, :customer, :team, :start_time, :end_time
# end