40 lines
992 B
Ruby
40 lines
992 B
Ruby
# Copyright (C) 2024 Manuel Bustillo
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class Group < ApplicationRecord
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validates :name, uniqueness: true
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validates :name, :order, presence: true
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has_many :children, class_name: 'Group', foreign_key: 'parent_id'
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belongs_to :parent, class_name: 'Group', optional: true
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before_create :set_color
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scope :roots, -> { where(parent_id: nil) }
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has_many :guests
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def colorize_children(generation = 1)
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derived_colors = generation == 1 ? color.paint.palette.analogous(size: children.count) : color.paint.palette.decreasing_saturation
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children.zip(derived_colors) do |child, raw_color|
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final_color = raw_color.paint
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final_color.brighten(60) if final_color.dark?
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child.update!(color: final_color)
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child.colorize_children(generation + 1)
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end
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end
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private
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def set_color
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return if color.present?
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new_color = "##{SecureRandom.hex(3)}".paint
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new_color = new_color.lighten(30) if new_color.dark?
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self.color = new_color
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end
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end
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