[Forminator Pro] - Custom submission lookup

wpmudev-forminator-custom-submission-lookup.php

<?php
/**
* Plugin Name: [Forminator Pro] - Custom submission lookup
* Plugin URI: https://premium.wpmudev.org/
* Description: Generate a unique code and access form submission using it (as of 1.12.1)
* Author: Alessandro Kaounas @ WPMUDEV
* Author URI: https://premium.wpmudev.org/
* Task: 0/11289012348292/1168805940889796
* License: GPLv2 or later
*/

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

// No need to do anything if the request is via WP-CLI.
if ( defined( 'WP_CLI' ) && WP_CLI ) {
	return;
}

if ( ! class_exists( 'WPMUDEV_Forminator_Custom_Submission_Lookup' ) ) {
    
    class WPMUDEV_Forminator_Custom_Submission_Lookup {

        // Unique code length
        private $length = 6;

        // Source Form
        private $s_form_id = 492;
        private $s_form_field = 'hidden-1';
        
        // Target Form
        private $t_form_id = 494;
        private $t_form_field = 'text-1';

        private $generations = 0;
        private static $_instance = null;

        public static function get_instance() {

            if( is_null( self::$_instance ) ){
                self::$_instance = new WPMUDEV_Forminator_Custom_Submission_Lookup();
            }

            return self::$_instance;
            
        }

        private function __construct() {
            
            $this->init();

        }

        public function init(){
        
            add_filter( 'forminator_custom_form_submit_field_data', array( $this, 'wpmudev_randomize_hidden_input' ), 10, 2 );
            add_filter( 'forminator_custom_form_submit_errors', array( $this, 'wpmudev_forminator_custom_form_submit_errors' ), 10, 3 );
            add_action( 'forminator_custom_form_after_save_entry', array( $this, 'wpmudev_forminator_custom_form_after_save_entry' ) );

        }

        public function wpmudev_forminator_custom_form_after_save_entry( $form_id ){
            
            if( $this->s_form_id != $form_id ){
                return;
            }
            
            $entries = Forminator_API::get_entries( $form_id );

            if( is_array( $entries ) ){
                $entry = $entries[0];
                if( $entry instanceof Forminator_Form_Entry_Model ){
                    $code = $entry->get_meta( $this->s_form_field );
                }
            }

            if( ! isset( $code ) ){
                return;
            }
        
            wp_send_json_success( 
                array(
                    'success' => true,
                    'message' => sprintf( __( "Form submitted with unique code: <strong>%s</strong>", Forminator::DOMAIN ), $code ),
                    'behav'   => 'behaviour-thankyou'
                )
            );

        }

        public function wpmudev_forminator_custom_form_submit_errors( $errors, $form_id, $field_data_array ){
    
            if( $form_id != $this->t_form_id ){
                return;
            }
            
            global $wpdb;

            foreach( $field_data_array as $key => $field ){
                if( $field['name'] === $this->t_form_field ){
                    $code = trim( $field['value'] );
                }
            }

            if( ! isset( $code ) ){
                return;
            }

            $query = "SELECT entry_id FROM {$wpdb->prefix}frmt_form_entry_meta
            WHERE meta_key LIKE '{$this->s_form_field}' AND `meta_value` LIKE '{$code}';";

            $entry_id = $wpdb->get_var( $query );
            $entry = Forminator_API::get_entry( $form_id, $entry_id );

            $form = Forminator_API::get_form( $this->s_form_id );
            
            $html = '';

            foreach( $form->get_fields() as $key => $field ){
                
                if( $field->slug == $this->s_form_field ){
                    continue;
                }

                $html .= '<label for="forminator-field-text-' . $key . '" class="forminator-label">' . $field->field_label. '</label>';
                $html .= '<p>' . $entry->get_meta( (string) $field->slug ) . '</p>';

            }

            wp_send_json_success( array(
                'success' => true,
                'message' => $html,
                'behav'   => 'behaviour-thankyou'
            ));
        
        }

        public function wpmudev_randomize_hidden_input( $field_data_array, $form_id ) {

            if( (int) $form_id !== (int) $this->s_form_id ) {
                return $field_data_array;
            }

            foreach( $field_data_array as $key => $field ){
                if( $field['name'] === $this->s_form_field ){
                    unset( $field_data_array[$key] );
                }
            }

            $field_data_array[] = array(
                'name'     => $this->s_form_field,
                'value'    => $this->wpmudev_randomizer()
            );

            return $field_data_array;

        }

        public function wpmudev_is_unique( $num = '' ) {

            global $wpdb;

            $query = "SELECT COUNT(*) FROM {$wpdb->prefix}frmt_form_entry_meta
            WHERE meta_key LIKE '{$this->s_form_field}' 
            AND   meta_value LIKE '{$num}'
            AND   entry_id IN( SELECT entry_id 
            FROM  {$wpdb->prefix}frmt_form_entry WHERE form_id = {$this->s_form_id} );";
            
            if( 0 === (int) $wpdb->get_var( $query ) ){
                return true;
            }else{
                $this->$generations++;
                return false;
            }

        }
        
        public function wpmudev_randomizer() {
            
            $num = '';
        
            $characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';

            for ($i = 0; $i < $this->length; $i++) {	
                $num .= $characters[rand(0, strlen( $characters ) - 1)]; 
            }
            
            if( $this->$generations > pow( strlen( $characters ), $this->length ) ){
                return null;
            }

            if( (int) $num === 0 ){
                return $this->wpmudev_randomizer();
            }
            
            if( $this->wpmudev_is_unique( $num ) ) {
                return $num;
            } else {
                return $this->wpmudev_randomizer();
            }
        }

    }

    add_action( 'plugins_loaded', function(){
        return WPMUDEV_Forminator_Custom_Submission_Lookup::get_instance();
    });

}