New answers tagged geodjango
admin.site.register(Poly, admin.GeoModelAdmin) or admin.site.register(Poly, admin.OSMGeoAdmin) # for openstreet map
I would add the constraint in a migration. Or, in something more pretty: a custom field. https://docs.djangoproject.com/en/1.6/howto/custom-model-fields/#writing-a-field-subclass Good luck.
Take a look at this tutorial using Leaflet instead of OpenLayers. It worked for me and the docs and plugins are great. The GeoDjango tutorial does fall short for displaying maps.
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