publication/app/controllers/admin/chapters_controller.rb

class Admin::ChaptersController < OrbitAdminController
  def initialize
    super
    @app_title = "publication"
  end

  def index
    @table_fields = [:title, :author, :page, :sort_number]
    @chapters = Chapter.order_by(sort).page(params[:page]).per(10)
    render partial: "index" if request.xhr?
  end

  def new
    @chapter = Chapter.new
    @publication = Publication.find(params[:publication_id])
    if can_edit_or_delete?(@publication)
      @tags = @module_app.tags || []
    else
      render_401
    end
  end

  def create
    chapter = Chapter.create(chapter_params)
    redirect_to params[:referer_url]
  end

  def edit
    @chapter = Chapter.find(params[:id])
    if can_edit_or_delete?(@publication)
      @publication = @chapter.publication
    else
      render_401
    end
  end

  def update
    chapter = Chapter.find(params[:id])
    chapter.update_attributes(chapter_params)
    redirect_to params[:referer_url]
  end

  def destroy
    chapter = Chapter.find(params[:id])
    publication = chapter.publication
    chapter.destroy
    redirect_to admin_publication_path(publication.id, page: params[:page])
  end

  private

  def chapter_params
    tmp = params.require(:chapter).permit!
    if tmp['chapter_files_attributes']['0']['file'].nil? && !tmp['chapter_files_attributes']['0']['_destroy']
       tmp.delete('chapter_files_attributes') 
    end
    tmp
  end

  def setup_vars
    @module_app = ModuleApp.where(key: "publication").first
  end
end