openstamanager/modules/fatture/add_preventivo.php

<?php
/*
 * OpenSTAManager: il software gestionale open source per l'assistenza tecnica e la fatturazione
 * Copyright (C) DevCode s.n.c.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

include_once __DIR__.'/../../core.php';

use Modules\Fatture\Fattura;
use Modules\Preventivi\Preventivo;

$documento_finale = Fattura::find($id_record);
$dir = $documento_finale->direzione;

$id_documento = get('id_documento');
if (!empty($id_documento)) {
    $documento = Preventivo::find($id_documento);

    $options = [
        'op' => 'add_documento',
        'type' => 'preventivo',
        'button' => tr('Aggiungi'),
        'documento' => $documento,
        'documento_finale' => $documento_finale,
    ];

    echo App::load('importa.php', [], $options, true);

    return;
}

$id_anagrafica = $documento_finale->idanagrafica;

echo '
<div class="row">
    <div class="col-md-12">
        {[ "type": "select", "label": "'.tr('Preventivo').'", "name": "id_documento", "ajax-source": "preventivi", "select-options": {"idanagrafica": '.$id_anagrafica.', "stato": "is_fatturabile"} ]}
    </div>
</div>

<div id="righe_documento">

</div>

<div class="alert alert-info" id="box-loading">
    <i class="fa fa-spinner fa-spin"></i> '.tr('Caricamento in corso').'...
</div>';

$file = basename(__FILE__);
echo '
<script>$(document).ready(init)</script>

<script>
    var content = $("#righe_documento");
    var loader = $("#box-loading");

    $(document).ready(function() {
        loader.hide();
    });

    $("#id_documento").on("change", function() {
        loader.show();

        var id = $(this).selectData() ? $(this).selectData().id  : "";

        content.html("");
        content.load("'.$structure->fileurl($file).'?id_module='.$id_module.'&id_record='.$id_record.'&id_documento=" + id, function() {
            loader.hide();
        });
    });
</script>';