One way I could think of is, you can render partials in the controller itself.
def view if params[:switchOn] == 'maincategory' Bbq.find(:all) @switchOn = 'main' render :partial => 'viewmain' end if params[:switchOn] == 'subcategory' Bbq.find(:all, :condtion .. something) @switchOn = 'sub' render :partial => 'viewsub' end end
