ftw.geo.handlers.geocodeAddressHandler

        def geocodeAddressHandler(obj, event):
    """Handler to automatically do geocoding lookups for IGeoreferenceable
    objects that have an IGeocodableLocation adapter.
    """
    # When creating the obj, it has no request - we need to get it
    # from the site.
    request = getSite().REQUEST

    # When we run the gecode address handler it will fire an object modified
    # event - but we are subscribing to this event. This will result in a
    # recursion unless we prevent it.
    if IGeoCoding.providedBy(request):
        return
    alsoProvides(request, IGeoCoding)

    location_adapter = queryAdapter(obj, IGeocodableLocation)
    if not location_adapter:
        return

    location = location_adapter.getLocationString()

    if location:
        ann = queryAdapter(obj, IAnnotations)
        previous_location = ann.get(LOCATION_KEY)
        # Only do the geocoding lookup if the location changed
        if not location == previous_location:
            geocoding_result = geocode_location(location)
            if geocoding_result:
                _place, coords, msg = geocoding_result
                if msg:
                    display_status_message(msg)
                geo_manager = queryAdapter(obj, IGeoManager)
                geo_manager.setCoordinates('Point', (coords[1], coords[0]))
                # Update the stored location
                ann[LOCATION_KEY] = location

    noLongerProvides(request, IGeoCoding)