GravityView: Update ACF Google Maps fields on Edit Entry

gv-update-acf-google-maps.php

<?php
/**
 * Update ACF Google Maps field when editing entries via GravityView
 * 
 * This snippet complements the GP Address Autocomplete ACF snippet:
 * https://gravitywiz.com/snippet-library/gpaa-acf-google-maps/
 * 
 * PROBLEM: The original GP snippet only runs when Advanced Post Creation initially
 * creates a post. When you edit an entry through GravityView's Edit Entry feature,
 * the ACF Google Maps field becomes empty because the snippet doesn't run again.
 * 
 * SOLUTION: This code hooks into GravityView's entry update process and re-populates
 * the ACF Google Maps field with the updated address data and coordinates.
 * 
 * Requirements:
 * - GravityView (with Edit Entry enabled)
 * - GP Address Autocomplete
 * - Advanced Custom Fields (ACF)
 * - Gravity Forms Advanced Post Creation Add-on
 * 
 * Installation:
 * Add this code to your theme's functions.php or a custom plugin.
 * 
 * @author GravityKit
 * @link https://gravitykit.com/support
 */
add_action( 'gravityview/edit_entry/after_update', 'gv_update_acf_google_maps_on_edit', 10, 3 );

/**
 * Update ACF Google Maps fields when entry is updated via GravityView
 *
 * @param array $form      The Gravity Forms form object.
 * @param int   $entry_id  The entry ID being updated.
 * @param int   $view_id   The GravityView View ID.
 *
 * @return void
 */
function gv_update_acf_google_maps_on_edit( $form, $entry_id, $view_id ) {
	// Validate all required dependencies
	if ( ! is_callable( 'acf_get_field' ) || 
	     ! is_callable( 'gp_address_autocomplete' ) ||
	     ! function_exists( 'get_field_objects' ) ) {
		return;
	}

	// Get the updated entry
	$entry = GFAPI::get_entry( $entry_id );
	
	if ( is_wp_error( $entry ) ) {
		return;
	}

	// Get the post ID
	$post_id = rgar( $entry, 'post_id' );
	
	if ( ! $post_id ) {
		return;
	}

	// Get Address Autocomplete fields from form
	$autocomplete_fields = gp_address_autocomplete()->get_autocomplete_fields( $form );
	
	if ( empty( $autocomplete_fields ) ) {
		return;
	}

	// Get all ACF fields for this post
	$acf_fields = get_field_objects( $post_id );
	
	if ( ! $acf_fields ) {
		return;
	}

	// Filter to only Google Map fields
	$google_map_fields = array_filter( $acf_fields, function( $field ) {
		return isset( $field['type'] ) && $field['type'] === 'google_map';
	} );

	if ( empty( $google_map_fields ) ) {
		return;
	}

	// Update each Address Autocomplete field → ACF Google Map field
	foreach ( $autocomplete_fields as $gf_field ) {
		$gf_field_id = $gf_field->id;
		
		// Get coordinates from entry
		$lat = rgar( $entry, "gpaa_lat_{$gf_field_id}" );
		$lng = rgar( $entry, "gpaa_lng_{$gf_field_id}" );

		// Validate coordinates (0,0 is valid, so check for numeric and not empty string)
		if ( ! is_numeric( $lat ) || ! is_numeric( $lng ) || $lat === '' || $lng === '' ) {
			continue;
		}

		// Build formatted address from Address field components
		$street  = rgar( $entry, "{$gf_field_id}.1" );
		$street2 = rgar( $entry, "{$gf_field_id}.2" );
		$city    = rgar( $entry, "{$gf_field_id}.3" );
		$state   = rgar( $entry, "{$gf_field_id}.4" );
		$zip     = rgar( $entry, "{$gf_field_id}.5" );
		$country = rgar( $entry, "{$gf_field_id}.6" );
		
		$address_parts = array_filter( [ $street, $street2, $city, $state, $zip, $country ] );
		$address = implode( ', ', $address_parts );

		if ( empty( $address ) ) {
			continue;
		}

		// Prepare ACF Google Map value with proper type casting
		$acf_value = [
			'address' => $address,
			'lat'     => (float) $lat,
			'lng'     => (float) $lng,
		];

		// Update all ACF Google Map fields with this address
		// (Usually there's only one, but this handles multiple map fields if needed)
		foreach ( $google_map_fields as $acf_field ) {
			update_field( $acf_field['key'], $acf_value, $post_id );
		}
	}
}