Blocks

blocks.rb

class Page
  has_many :blocks, -> { ordered }, dependent: :destroy
  attr_accessors :title
  
  def visible_blocks
    @visible_block ||= blocks.current_locale.map(&:blockable)
  end
end

class Block
  belongs_to :page
  belongs_to :blockable, polymorphic: true, dependent: :destroy
  attr_accessor :locale
  
  scope :ordered, -> { order position: :desc }
  scope :current_locale, -> { where('(locale = ? OR locale IS NULL)') }
end

module Blockable
  extend ActiveSupport::Concern
  included do
    has_one :block, as: :blockable, dependent: :destroy
  end
end

class TextBlock
  include Blockable
  attr_accessor :body
end

class DownloadBlock
  include Blockable
  has_many :attachments
end

class ImageBlock
  include Blockable
  has_many :images
end

class MapBlock
  include Blockable
  attr_accessor :latitude, :longitude, :zoom
end