postgis - overlay my shapefiles stored in database to the web/browser

I am very much strrugling on how to display my shapefiles stored in postgis database to the browser or to the web.. is there anyone there knows how to do it.? I am using geodjango framework in python,. I already achieve the displaying of maps in admin interface but when I create my public page for displaying the maps, its make my head aching,.I did not konow how to overlay my shapefiles stored in database to the base map openlayers / openstreetmap.