Contents

require "redcarpet"

module BitPlayer
  # A page of "static" or presentational content (as opposed to data capture).
  class Slide < ActiveRecord::Base
    belongs_to :slideshow,
               class_name: "BitPlayer::Slideshow",
               foreign_key: :bit_player_slideshow_id,
               inverse_of: :slides

    validates :title, :body, :position, presence: true
    validates :position, numericality: { greater_than_or_equal_to: 1 }
    validates :position, uniqueness: { scope: :bit_player_slideshow_id }

    def self.update_positions(ids)
      transaction do
        connection.execute "SET CONSTRAINTS bit_player_slide_position DEFERRED"
        ids.each_with_index do |id, index|
          where(id: id).update_all(position: index + 1)
        end
      end
    end

    def render_body
      return "" if body.nil?

      Redcarpet::Markdown.new(
        Redcarpet::Render::HTML.new(
          filter_html: true,
          safe_links_only: true
        ),
        space_after_headers: true
      ).render(body).html_safe
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
bit_player-0.2.3	app/models/bit_player/slide.rb
bit_player-0.2.2	app/models/bit_player/slide.rb
bit_player-0.2.1	app/models/bit_player/slide.rb
bit_player-0.2.0	app/models/bit_player/slide.rb
bit_player-0.1.4	app/models/bit_player/slide.rb