Formit RedirectByValue Hook

gistfile1.txt

<?php
/**
 * RedirectByValue
 *
 * Copyright 2016 by Thomas Jakobi <thomas.jakobi@partout.info>
 *
 * Description:
 * This FormIt Hook redirects to different targets on base of the
 * formItRedirectByValue property. The property has to contain a json encoded
 * object of fieldnames, values, redirects and redirect parameters. Only a
 * third level
 *
 * Usage:
 * [[!FormIt? &preHooks=`redirectbyvalue` &redirectByValue=`{"send_back":"123","send_forward":"456","send_submit":{"1":"135","2":{"params":{"user":"123","success":"1"},"redirect":"246"}}}`]]
 *
 * Indented JSON value from above:
 * [
 *   {
 *     "send_back": "123",
 *     "send_forward": "456",
 *     "send_submit": {
 *       "1": "135",
 *       "2": {
 *         "params": {
 *           "user": "123",
 *           "success": "1"
 *         },
 *         "redirect": "246"
 *       }
 *     }
 *   }
 * ]
 *
 * @var modX $modx
 * @var FormIt $formit
 * @var fiHooks $hook
 */

$postValues = count($_POST) ? $_POST : array();
$redirectByValue = json_decode($modx->getOption('redirectByValue', $formit->config, ''), true);

$redirect = false;
$redirectParams = array();
if ($redirectByValue && $postValues) {
    foreach ($redirectByValue as $fieldname => $value) {
        if (isset($postValues[$fieldname])) {
            if (is_string($value)) {
                $redirect = $value;
            } elseif (is_array($value)) {
                foreach ($value as $fieldvalue => $fieldredirect) {
                    if ($postValues[$fieldname] == $fieldvalue) {
                        if (is_string($fieldredirect)) {
                            $redirect = $fieldredirect;
                        } elseif (is_array($fieldredirect)) {
                            $redirect = $fieldredirect['redirect'];
                            $redirectParams = array();
                            foreach ($fieldredirect['params'] as $param) {
                                if (isset($postValues[$param]) && $postValues[$param] != '') {
                                    $redirectParams[$param] = $postValues[$param];
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    if ($redirect) {
        $url = $modx->makeUrl($redirect, '', $redirectParams);
        $modx->sendRedirect($url);
    }
}

return true;

Usage:

[[!FormIt?
&preHooks=`redirectbyvalue`
&redirectByValue=`{"send_back":"123","send_forward":"456","send_submit":{"1":"135","2":{"params":{"user":"123","success":"1"},"redirect":"246"}}}`
]]

Indented JSON value from above:

[
    {
        "send_back": "123",
        "send_forward": "456",
        "send_submit": {
            "1": "135",
            "2": {
                "params": {
                    "user": "123",
                    "success": "1"
                },
                "redirect": "246"
            }
        }
    }
]