[Forminator] - Fix Custom Fields From Post Data Field Not Working

forminator-fix-custom-fields-not-working.php

<?php
/**
 * Plugin Name: [Forminator] - Fix Custom Fields From Post Data Field Not Working
 * Description: [Forminator] - Fix Custom Fields From Post Data Field Not Working - 1134362988714714
 * Author: Thobk @ WPMUDEV
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

add_action( 'plugins_loaded', 'wpmudev_forminator_fix_custom_field_not_working_func', 100 );

function wpmudev_forminator_fix_custom_field_not_working_func() {
	if ( defined('FORMINATOR_PRO') && class_exists( 'Forminator' ) ) {
		// fix custom field not display on front-end
		add_filter('get_post_metadata', 'wpmudev_forminator_custom_meta_value_forminator_form_meta', 10, 3);
		function wpmudev_forminator_custom_meta_value_forminator_form_meta( $check, $object_id, $meta_key ){
			if( 'forminator_form_meta' !== $meta_key ){
				return $check;
			}

			$meta_type = 'post';

			$meta_cache = wp_cache_get( $object_id, $meta_type . '_meta' );

			if ( ! $meta_cache ) {
				$meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
				$meta_cache = $meta_cache[ $object_id ];
			}

			if ( ! $meta_key ) {
				return $meta_cache;
			}

			if ( isset( $meta_cache[ $meta_key ] ) ) {
				$meta_value = maybe_unserialize( $meta_cache[ $meta_key ][0] );

				if( ! empty( $meta_value['fields'] ) ){
					foreach( $meta_value['fields'] as $k => $field ){
						if( isset( $field['type'] ) && 'postdata' === $field['type'] ){
							if( ! empty( $field['options'] ) && ! empty( $field['post_custom_fields'] ) ){
								$field['post_custom'] = $field['post_custom_fields'];
								$field['custom_vars'] = $field['options'];

								$meta_value['fields'][ $k ] = $field;
							}
						}
					}
				}

				return [$meta_value];
			}

			return '';
		}


		// fix the custom form not update custom fields
		add_action( 'forminator_post_data_field_post_saved', 'wpmudev_formiinator_save_custom_fields_data', 10, 3 );

		function wpmudev_formiinator_save_custom_fields_data( $post_id, $field, $data ){
			if( isset( $field['custom_vars'], $data['post-custom'] ) ){
				$values1 = wp_list_pluck( $field['custom_vars'], 'value' );
				$values2 = wp_list_pluck( $data['post-custom'], 'value' );

				if( $values1 && $values2 ){
					if(  $values1 !== $values2 ){
						$values1 = array_map('trim', $values1);
					}

					if( $values1 === $values2 ){
						$field_id     = Forminator_Field::get_property( 'element_id', $field );
						// support advanced custom field
						$using_acf = function_exists('get_field_object');
						foreach( $data['post-custom'] as $key => $meta_field ){
							if( empty( $meta_field['value'] ) ){
								$meta_field['value'] = sanitize_title( $meta_field['key'] );
							}
							$mod_field_id = $field_id .'-post_meta-'. $meta_field['value'];
							if( isset( $_POST[ $mod_field_id ] ) ){
								if( $meta_field['key'] ){
									delete_post_meta( $post_id, $meta_field['key'], $data['post-custom'][ $key ]['value'] );
								}

								// check advanced custom field first
								if( $using_acf && $field_obj = get_field_object( $meta_field['value'], $post_id ) && $field_obj->ID ){
									update_field($meta_field['value'], $_POST[ $mod_field_id ], $post_id);
								}else{
									update_post_meta( $post_id, $meta_field['value'], $_POST[ $mod_field_id ] );
								}
							}
						}
					}
				}
			}
		}
	}
}