slides_controller.rb

class SlidesController < ApplicationController
  respond_to :html, :json, :pdf

  def index
    @slides = Slide.order("position")
    respond_with(@slides)
  end

  def show
    @slide = Slide.find(params[:id])
    respond_with(@slide)
  end

  def new
    @slide = Slide.new
    respond_with(@slide)
  end

  def edit
    @slide = Slide.find(params[:id])
  end

  def create
    @slide = Slide.new(params[:slide])
    @slide.save
    respond_with(@slide)
  end

  def update
    @slide = Slide.find(params[:id])
    @slide.update_attributes(params[:slide])
    respond_with(@slide)
  end

  def destroy
    @slide = Slide.find(params[:id])
    @slide.destroy
    respond_with(@slide)
  end

  def sort
    params[:slide].each_with_index do |id, index|
      Slide.update_all({position: index+1}, {id: id})
    end
  end
end