class TemplateOverlay < ApplicationRecord
  belongs_to :server_template
  belongs_to :overlay

  validates :server_template_id, :overlay_id, :position, presence: true
  validates :overlay_id, uniqueness: { scope: :server_template_id }
  validates :position, uniqueness: { scope: :server_template_id }

  scope :ordered, -> { order(position: :asc) }
end