gistfile1.rb

def index
      includes = [:content_view, :environments, :composite_content_views, :history => :task]
      sort = "#{ContentViewVersion.table_name}.major desc, #{ContentViewVersion.table_name}.minor desc"
      respond(:collection => scoped_search(index_relation.uniq, sort, '', :includes => includes))
    end

    def index_relation
      version_number = params.permit(:version)[:version]
      versions = ContentViewVersion.readable
      versions = versions.where(:content_view_id => @view.id) if @view
      versions = versions.for_version(version_number) if version_number
      versions = versions.in_environment(@environment) if @environment
      versions = versions.component_of(params[:composite_version_id]) if params[:composite_version_id]
      versions
    end