PrestaShop AdminController override

PS_AdminControllerOverride.php

<?php
class AdminXXXController extends AdminXXXControllerCore
{
    	public function renderForm()
	{
		$this->multiple_fieldsets = true;
		
		$this->fields_form = array(
			array(
				'form' => array(
						'tinymce' => true,
						'legend' => array(
							'title' => $this->l('Some fieldset legend'),
							'image' => '../path/to/icon.gif'
						),
						'input' => array(
							array(
								'type' => 'text',
								'label' => $this->l('Name:'),
								'name' => 'name',
								'lang' => true,
								'size' => 48,
								'required' => true,
								'class' => 'copy2friendlyUrl',
								'hint' => $this->l('Invalid characters:').' <>;=#{}',
							),
							array(
								'type' => 'radio',
								'label' => $this->l('Displayed:'),
								'name' => 'active',
								'required' => false,
								'class' => 't',
								'is_bool' => true,
								'values' => array(
									array(
										'id' => 'active_on',
										'value' => 1,
										'label' => $this->l('Enabled')
									),
									array(
										'id' => 'active_off',
										'value' => 0,
										'label' => $this->l('Disabled')
									)
								)
							)
						),
						'submit' => array(
							'title' => $this->l('Save'),
							'class' => 'button'
						),
				),
			),
			array(
				'form' => array(
					'legend' => array(
						'title' => $this->l('Other fieldset')
					),
					'input' => array(
						array(
							'type' => 'text',
							'label' => $this->l('Domain:'),
							'name' => 'domain',
							'size' => 50,
						),
						array(
							'type' => 'text',
							'label' => $this->l('Domain SSL:'),
							'name' => 'domain_ssl',
							'size' => 50,
						),
						array(
							'type' => 'text',
							'label' => $this->l('Physical URI:'),
							'name' => 'physical_uri',
							'desc' => $this->l('Physical folder of your store on your server. Leave this field empty if your store is installed on the root path (e.g. if your store is available at www.my-prestashop.com/my-store/, you would set my-store/ in this field).'),
							'size' => 50,
						),
						array(
							'type' => 'text',
							'label' => $this->l('Virtual URI:'),
							'name' => 'virtual_uri',
							'desc' => $desc_virtual_uri,
							'size' => 50,
							'hint' => (!$update_htaccess) ? $this->l('Warning: URL rewriting (e.g. mod_rewrite for Apache) seems to be disabled. If your URL don\'t work, please check with your host provider how to activate URL rewriting.') : '',
						),
						array(
							'type' => 'text',
							'label' => $this->l('Your final URL will be:'),
							'name' => 'final_url',
							'size' => 76,
							'readonly' => true
						),
					),
				),
			),
		);
	}