MODX change author plugin

createdBy.plugin.php

<?php
/**
 * Plugin to add a "created by" field on a resource form and moves "published on" to document tab
 *
 * @var modX $modx
 * @var array $scriptProperties
 *
 * @event OnDocFormPrerender
 */
$dateFormat = $modx->getOption('manager_date_format',null,'d.m.Y');
$timeFormat = $modx->getOption('manager_time_format',null,'H:i');
$modx->controller->addHtml("
<script>
    // We are targeting the right column in the settings tab
    Ext.ComponentMgr.onAvailable('modx-page-settings-right', function(right) {
        right.on('beforerender', function() {
            // page is a reference to the whole form panel
            var page = Ext.getCmp('modx-panel-resource')
                // record is a reference to our resource fields
                ,record = page.record
                ,publishedon = Ext.getCmp('modx-resource-publishedon');
            ;
            // Remove old published on 
            publishedon.destroy();
            
            // Add created by
            right.insert(0,{
                xtype: 'modx-combo-user'
                ,name: 'createdby'
                ,hiddenName: 'createdby'
                ,value: record.createdby
                ,anchor: '100%'
                ,layout: 'anchor'
                ,fieldLabel: _('resource_createdby')
            });
        })
    });
    
    // We are targeting the right column in the resource tab
    Ext.ComponentMgr.onAvailable('modx-resource-main-right', function(right) {
        right.on('beforerender', function() {
            // page is a reference to the whole form panel
            var page = Ext.getCmp('modx-panel-resource')
                // record is a reference to our resource fields
                ,record = page.record
            ;
            
            // Add new published on
            right.insert(4,{
                xtype: 'xdatetime'
                ,dateFormat:'".$dateFormat."'
                ,timeFormat:'".$timeFormat."'
                ,name: 'publishedon'
                ,hiddenName: 'publishedon'
                ,value: record.publishedon
                ,anchor: '100%'
                ,layout: 'anchor'
                ,fieldLabel: _('resource_publishedon')
            });
        })
    });
    
</script>");