[Forminator] - Auto populate fields with usermeta.

forminator-populate-usermeta.php

<?php
/**
 * Plugin Name: [Forminator] - Auto populate fields with usermeta.
 * Plugin URI: https://premium.wpmudev.org/
 * Description: Autopopulate Forminator fields with usermeta.
 * Author: Panos Lyrakis, Prashant Singh @ WPMUDEV
 * Author URI: https://premium.wpmudev.org/
 * License: GPLv2 or later
 */

if ( ! defined( 'ABSPATH' ) || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
	return;
}

if ( ! class_exists( 'WPMUDEV_Forminator_AutoPopulate_Usermeta' ) ) {

	class WPMUDEV_Forminator_AutoPopulate_Usermeta {

		private static $_instance = null;
		private $current_user = null;

		public static function get_instance() {
			if ( is_null( self::$_instance ) ) {
				self::$_instance = new WPMUDEV_Forminator_AutoPopulate_Usermeta();
			}

			return self::$_instance;
		}

		private function __construct() {
			if ( is_user_logged_in() ) {
				$this->current_user = get_current_user_id();
				add_action( 'forminator_before_field_render', array( $this, 'prepare_prefill' ) );
				add_filter( 'forminator_custom_form_submit_errors', array( $this, 'update_user_meta' ), 10, 3 );
			}
		}

		public function update_user_meta( $submit_errors, $form_id, $field_data_array ) {
			if ( empty( $submit_errors ) && ! is_null( $this->current_user ) ) {

				$form = Forminator_Form_Model::model()->load( $form_id );

				foreach ( $field_data_array as $field_data ) {
					if ( ! isset( $field_data['name'] ) || ! isset( $field_data['value'] ) ) {
						continue;
					}

					$field       = $form->get_field( $field_data['name'] );
					$prefill_key = sanitize_text_field( Forminator_Field::get_property( 'prefill', $field ) );

					if ( ! empty( $prefill_key ) ) {
						update_user_meta( (int) $this->current_user, $prefill_key, sanitize_text_field( $field_data['value'] ) );
					}
				}
			}

			return $submit_errors;
		}

		public function prepare_prefill( $field ) {

			$prefill_key = sanitize_text_field( Forminator_Field::get_property( 'prefill', $field ) );

			if ( ! empty( $prefill_key ) && ! is_null( $this->current_user ) && ! isset( $_REQUEST[ $prefill_key ] ) ) {
				$meta_value = get_user_meta( (int) $this->current_user, $prefill_key, true );
				if ( ! empty( $meta_value ) ) {
					$_REQUEST[ $prefill_key ] = $meta_value;
				}
			}
		}
	}

	if ( ! function_exists( 'wpmudev_forminator_autopopulate_usermate' ) ) {
		function wpmudev_forminator_autopopulate_usermate() {
			return WPMUDEV_Forminator_AutoPopulate_Usermeta::get_instance();
		}

		add_action( 'plugins_loaded', 'wpmudev_forminator_autopopulate_usermate', 10 );
	}
}