chamilo-lms/public/main/admin/extra_fields.php

<?php
/* For licensing terms, see /license.txt */

/**
 *  @package chamilo.admin
 */
$cidReset = true;

require_once __DIR__.'/../inc/global.inc.php';

$extraFieldType = isset($_REQUEST['type']) ? $_REQUEST['type'] : null;

$this_section = SECTION_PLATFORM_ADMIN;

api_protect_admin_script();

//Add the JS needed to use the jqgrid
$htmlHeadXtra[] = api_get_jqgrid_js();

// setting breadcrumbs
$interbreadcrumb[] = ['url' => 'index.php', 'name' => get_lang('Administration')];

$tool_name = null;

$action = isset($_GET['action']) ? $_GET['action'] : null;
if (!in_array($extraFieldType, ExtraField::getValidExtraFieldTypes())) {
    api_not_allowed(true);
}

$check = Security::check_token('request');
$token = Security::get_token();

$obj = new ExtraField($extraFieldType);

$obj->setupBreadcrumb($interbreadcrumb, $action);

//jqgrid will use this URL to do the selects
$url = api_get_path(WEB_AJAX_PATH).'model.ajax.php?a=get_extra_fields&type='.$extraFieldType;

//The order is important you need to check the the $column variable in the model.ajax.php file
$columns = $obj->getJqgridColumnNames();

//Column config
$column_model = $obj->getJqgridColumnModel();

//Autowidth
$extra_params['autowidth'] = 'true';
//height auto
$extra_params['height'] = 'auto';
$extra_params['sortname'] = 'field_order';

$action_links = $obj->getJqgridActionLinks($token);

$htmlHeadXtra[] = '<script>
$(function() {
    // grid definition see the $obj->display() function
    '.Display::grid_js(
        $obj->type.'_fields',
        $url,
        $columns,
        $column_model,
        $extra_params,
        [],
        $action_links,
        true
    ).'

    $("#field_type").on("change", function() {
        id = $(this).val();
        switch(id) {
            case "1":
                $("#example").html("'.addslashes(Display::return_icon('userfield_text.png')).'");
                break;
            case "2":
                $("#example").html("'.addslashes(Display::return_icon('userfield_text_area.png')).'");
                break;
            case "3":
                $("#example").html("'.addslashes(Display::return_icon('add_user_field_howto.png')).'");
                break;
            case "4":
                $("#example").html("'.addslashes(Display::return_icon('userfield_drop_down.png')).'");
                break;
            case "5":
                $("#example").html("'.addslashes(Display::return_icon('userfield_multidropdown.png')).'");
                break;
            case "6":
                $("#example").html("'.addslashes(Display::return_icon('userfield_data.png')).'");
                break;
            case "7":
                $("#example").html("'.addslashes(Display::return_icon('userfield_date_time.png')).'");
                break;
            case "8":
                $("#example").html("'.addslashes(Display::return_icon('userfield_doubleselect.png')).'");
                break;
            case "9":
                $("#example").html("'.addslashes(Display::return_icon('userfield_divider.png')).'");
                break;
            case "10":
                $("#example").html("'.addslashes(Display::return_icon('userfield_user_tag.png')).'");
                break;
            case "11":
                $("#example").html("'.addslashes(Display::return_icon('userfield_data.png')).'");
                break;
        }
    });
});
</script>';

// The header.
Display::display_header($tool_name);

// Action handling: Add
switch ($action) {
    case 'add':
        if (api_get_session_id() != 0 &&
            !api_is_allowed_to_session_edit(false, true)
        ) {
            api_not_allowed();
        }
        $url = api_get_self().'?type='.$obj->type.'&action='.Security::remove_XSS($_GET['action']);
        $form = $obj->return_form($url, 'add');

        // The validation or display
        if ($form->validate()) {
            $values = $form->exportValues();
            unset($values['id']);
            $res = $obj->save($values);
            if ($res) {
                echo Display::return_message(get_lang('Item added'), 'confirmation');
            }
            $obj->display();
        } else {
            echo '<div class="actions">';
            echo '<a href="'.api_get_self().'?type='.$obj->type.'">'.
            Display::return_icon('back.png', get_lang('Back'), '', ICON_SIZE_MEDIUM).'</a>';
            echo '</div>';
            $form->addElement('hidden', 'sec_token');
            $form->setConstants(['sec_token' => $token]);
            $form->display();
        }
        break;
    case 'edit':
        // Action handling: Editing
        $url = api_get_self().'?type='.$obj->type.'&action='.Security::remove_XSS($_GET['action']).'&id='.intval($_GET['id']);
        $form = $obj->return_form($url, 'edit');

        // The validation or display
        if ($form->validate()) {
            $values = $form->exportValues();
            $res = $obj->update($values);
            echo Display::return_message(
                sprintf(get_lang('Item updated'), $values['variable']),
                'confirmation',
                false
            );
            $obj->display();
        } else {
            echo '<div class="actions">';
            echo '<a href="'.api_get_self().'?type='.$obj->type.'">'.
            Display::return_icon('back.png', get_lang('Back'), '', ICON_SIZE_MEDIUM).'</a>';
            echo '</div>';
            $form->addElement('hidden', 'sec_token');
            $form->setConstants(['sec_token' => $token]);
            $form->display();
        }
        break;
    case 'delete':
        // Action handling: delete
        $res = $obj->delete($_GET['id']);
        if ($res) {
            echo Display::return_message(get_lang('Item deleted'), 'confirmation');
        }
        $obj->display();
        break;
    default:
        $obj->display();
        break;
}
Display::display_footer();