Geocode Address on Form Submit

There was a post regarding this topic here: http://www.gravityhelp.com/forums/topic/saving-latlong-data-from-a-form, but it has been closed.

Any idea what's wrong with this code? The values are being pulled from two custom fields, not a Gravity Forms address field. The fields are ' input_10' and 'input_11'. I've tried using just the numbers as well as the preceding 'input_' to no avail.

The custom fields are 'latitude' and 'longitude'

Any help is appreciated.

// Geocode New Development Additions
add_action("gform_after_submission_2", "pre_submission_handler");
function pre_submission_handler($entry){

    // update the "1.x" to the ID of your address field
    $query_string = $entry['10'] . "+" . $entry['11'];
    $coords = getLatLong($query_string);

    update_post_meta($entry['post_id'], 'lat', $coords['latitude']);
    update_post_meta($entry['post_id'], 'long', $coords['longitude']);

}

// function to take address and turn it into coordinates lat and long
function getLatLong($code){

    $mapsApiKey = '<removed>';
    $query = "http://maps.google.com/maps/geo?q=".urlencode($code)."&output=json&key=".$mapsApiKey;

    // This takes your full street address to create the lat/long
    $data = file_get_contents($query);

    // if data returned
    if($data){
        // convert into readable format
        $data = json_decode($data);
        $long = $data->Placemark[0]->Point->coordinates[0];
        $lat = $data->Placemark[0]->Point->coordinates[1];
        return array('Latitude'=>$lat,'Longitude'=>$long);
    } else {
        return false;
    }
}

For whatever the reason, the filter/action is being ignored by GF. I ended up doing the geocoding directly to the database after the records are added.