wedding-planner/app/models/group.rb

# Copyright (C) 2024 Manuel Bustillo

class Group < ApplicationRecord
  validates :name, uniqueness: true
  validates :name, :order, presence: true

  has_many :children, class_name: 'Group', foreign_key: 'parent_id'
  belongs_to :parent, class_name: 'Group', optional: true

  before_create :set_color

  scope :roots, -> { where(parent_id: nil) }

  has_many :guests

  private

  def set_color
    new_color = "##{SecureRandom.hex(3)}".paint
    new_color = new_color.lighten(30) if new_color.dark?
    self.color = new_color
  end
end