WordPress hook to geocode Gravity Forms fields for Geo Mashup

functions.php

<?php
/**
 * Example WordPress hook to geocode Gravity Forms fields for Geo Mashup.
 * 
 * This example uses a form ID of 2, replace _2 with your form ID,
 * 'address' and 'zip' with your Gravity Forms field names, and prefix
 * with your unique namespace prefix.
 */

add_action( 'gform_after_submission_2' 'prefix_gform_after_submission_2', 10, 2 );

function prefix_gform_after_submission_2( $lead, $form ) {
	// Require a post id
	if ( empty( $lead['post_id'] ) )
		return;

	// Require Geo Mashup
	if ( !class_exists( 'GeoMashupDB' ) )
		return;

	// Geocode address fields
	$postmeta_address_fields = array( 
		'address',
		'zip',
	);
	$geocode_address_parts = array();
	foreach( $postmeta_address_fields as $postmeta_address_field ) {
		$field_value = get_post_meta( $lead['post_id'], $postmeta_address_field, true );
		if ( !empty( $field_value ) ) {
			// Remove commas to avoid mixing them up with ours
			$geocode_address_parts[] = str_replace( ',', ' ', $field_value );
		}
	}

	if ( empty( $geocode_address_parts ) ) 
		return;

	$location = GeoMashupDB::blank_location();
	if ( GeoMashupDB::geocode( implode( ', ', $geocode_address_parts ), $location ) ) 
		GeoMashupDB::set_object_location( 'post', $lead['post_id'], $location );
}