Ненавязчивая идея сохранения - Модификации расширений для Joomla

<form action="/joomlacms/administrator/index.php?option=com_region&amp;view=modal&amp;layout=modal_table&amp;tmpl=component" method="post" name="adminForm" id="adminForm">

<button id="ready" onclick="if (document.adminForm.boxchecked.value==0){alert('Пожалуйста, выбирите хотя бы один регион из списка');}else{ Joomla.submitbutton('modal_table.checkin')};window.parent.SqueezeBox.close();"><? echo JText::_('COM_REGION_INSERT');?></button>

DROP TABLE IF EXISTS `#__news`;
 
CREATE TABLE `#__news` (
    `id` int(11) NOT NULL,
    `id_region` TEXT NOT NULL,
     PRIMARY KEY  (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

public function getTable($type = 'Modal', $prefix = 'ModalTable', $config = array()) 
	{
		return JTable::getInstance($type, $prefix, $config);
	}
	/**
	 * Method to get the record form.
	 *
	 * @param	array	$data		Data for the form.
	 * @param	boolean	$loadData	True if the form is to load its own data (default case), false if not.
	 * @return	mixed	A JForm object on success, false on failure
	 * @since	2.5
	 */
	public function getForm($data = array(), $loadData = true) 
	{
		// Get the form.
		$form = $this->loadForm('com_region.modal', 'modal',
		                        array('control' => 'jform', 'load_data' => $loadData));
		if (empty($form)) 
		{
			return false;
		}
		return $form;
	}


	protected function loadFormData() 
	{
		// Check the session for previously entered form data.
		$data = JFactory::getApplication()->getUserState('com_region.edit.modal.data', array());
		if (empty($data)) 
		{
			$data = $this->getItem();
		}
		return $data;
	}

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
 
// import Joomla controllerform library
jimport('joomla.application.component.controllerform');
 
/**
 * modal Controller
 */
class RegionControllerModal extends JControllerForm
{
}

class ModalTableModal extends JTable
{
	/**
	 * Constructor
	 *
	 * @param object Database connector object
	 */
	function __construct(&$db) 
	{
            parent::__construct('#__news', 'id', $db);
	}

<?php
// No direct access
defined('_JEXEC') or die('Restricted access');
JHtml::_('behavior.tooltip');
JHtml::_('behavior.formvalidation');
$params = $this->form->getFieldsets('params');
?>
<form action="<?php echo JRoute::_('index.php?option=com_region&view=modal&layout=edit&id='.(int) $this->item->id); ?>" method="post" name="adminForm" id="region-form" class="form-validate">
 
	<div class="width-100 fltlft">
		<fieldset class="adminform">
			<legend><?php echo JText::_( 'COM_REGION_REGION_DETAILS' ); ?></legend>
			<ul class="adminformlist">
                            <li><?php echo $this->form->getLabel('id'); ?>
                            <?php echo $this->form->getInput('id'); ?></li>
                            <li><?php echo $this->form->getLabel('id_region'); ?>
                            <?php echo $this->form->getInput('id_region'); ?></li>
			</ul>
		</fieldset>
	</div>
	<!-- begin ACL definition-->
 
   <div class="clr"></div> 
   <!-- end ACL definition-->
 
  <div>
		<input type="hidden" name="task" value="modal.edit" />
		<?php echo JHtml::_('form.token'); ?>
	</div>
</form>

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
 
// import Joomla view library
jimport('joomla.application.component.view');
 
/**
 * Region View
 */
class RegionViewModal extends JView
{
	/**
	 * display method of Hello view
	 * @return void
	 */
	public function display($tpl = null) 
	{
		// get the Data
		$form = $this->get('Form');
		$item = $this->get('Item');
		$script = $this->get('Script');
 
		// Check for errors.
		if (count($errors = $this->get('Errors'))) 
		{
			JError::raiseError(500, implode('<br />', $errors));
			return false;
		}
		// Assign the Data
		$this->form = $form;
		$this->item = $item;
		$this->script = $script;
		// Set the toolbar
		$this->addToolBar();
 
		// Display the template
		parent::display($tpl);
 
		// Set the document
		$this->setDocument();
	}
 
	/**
	 * Setting the toolbar
	 */
	protected function addToolBar() 
	{
		JRequest::setVar('hidemainmenu', true);
		$isNew = $this->item->id == 0;
		JToolBarHelper::title($isNew ? JText::_('COM_REGION_MANAGER_REGION_NEW') : JText::_('COM_REGION_MANAGER_REGION_EDIT'), 'modal');
		// Built the actions for new and existing records.
		if ($isNew) 
		{
			// For new records, check the create permission.
                        JToolBarHelper::apply('modal.apply', 'JTOOLBAR_APPLY');
			JToolBarHelper::cancel('modal.cancel', 'JTOOLBAR_CANCEL');
		}
		else
		{
				// We can save the new record
                        JToolBarHelper::apply('modal.apply', 'JTOOLBAR_APPLY');
			JToolBarHelper::cancel('modal.cancel', 'JTOOLBAR_CLOSE');
		}
	}
	/**
	 * Method to set up the document properties
	 *
	 * @return void
	 */
	protected function setDocument() 
	{
		$isNew = $this->item->id == 0;
		$document = JFactory::getDocument();
		$document->setTitle($isNew ? JText::_('COM_REGION_REGION_CREATING') : JText::_('COM_REGION_REGION_EDITING'));
	}
}

Сохранить не удалось из-за ошибки: ModalTableModal: :store failed
Duplicate entry '0' for key 'PRIMARY' SQL=INSERT INTO `jommlacms_news` (`id`,`id_region`) VALUES ('0','435345')

<?xml version="1.0" encoding="utf-8"?>
<form
	addfieldpath="/administrator/components/com_xbaner/models/fields"
>
	<fieldset name="details">
		<field
                    name="id"
                    type="hidden"
		/>
                <field 
                    name="id_region" 
                    label="COM_XBANER_REGION_LABEL" 
                    description="COM_XBANER_REGION_DESC"  
                    type="multicheckbox"
                />
        </fieldset>
</form>

function __construct(&$db) 
	{
            parent::__construct('#__news', 'id_region', $db);
	}