bloquer liste déroulante sur defaut

// department
 
	$label = $this->form->getLabel('department_id');
	$input = $this->form->getInput('department_id');
	$this->field->showField($label, $input);

<?php
 
/**
 
* @package RSTickets! Pro
 
* @copyright (C) 2010-2014 www.rsjoomla.com
 
* @license GPL, http://www.gnu.org/licenses/gpl-2.0.html
 
*/
 
defined('JPATH_PLATFORM') or die;
 
require_once JPATH_ADMINISTRATOR.'/components/com_rsticketspro/helpers/rsticketspro.php';
 
JFormHelper::loadFieldClass('list');
 
class JFormFieldDepartments extends JFormFieldList
 
{
 
	protected $type = 'Departments';
 
	protected function getOptions() {
 
		// Initialize variables.
 
		$options = array();
 
		if (isset($this->element['please']) && $this->element['please'] == 'true') {
 
			$options[] = JHtml::_('select.option', '', JText::_('RST_PLEASE_SELECT_DEPARTMENT'));
 
		}
 
		$db 	= JFactory::getDbo();
 
		$query 	= $db->getQuery(true);
 
		$query->select($db->qn('id'))
 
			  ->select($db->qn('name'))
 
			  ->from('#__rsticketspro_departments');
 
		if (isset($this->element['published']) && $this->element['published'] == 'true') {
 
			$query->where($db->qn('published').'='.$db->q(1));
 
		}
 
		$query->order($db->qn('ordering').' '.$db->escape('asc'));
 
		$db->setQuery($query);
 
		$results			= $db->loadObjectList();
 
		$is_staff			= RSTicketsProHelper::isStaff();
 
		$force_departments	= RSTicketsProHelper::getConfig('staff_force_departments');
 
		$departments		= RSTicketsProHelper::getCurrentDepartments();
 
		$view				= JFactory::getApplication()->input->get('view');
 
		foreach ($results as $result) {
 
			if ($is_staff && $force_departments && $view != 'staff' && !in_array($result->id, $departments))
 
				continue;
 
			$tmp = JHtml::_('select.option', $result->id, JText::_($result->name));
 
			// Add the option object to the result set.
 
			$options[] = $tmp;
 
		}
 
		reset($options);
 
		return $options;
 
	}
 
	protected function getInput() {
 
		$html = array();
 
		$attr = '';
 
		// Initialize some field attributes.
 
		$attr .= $this->element['class'] ? ' class="' . (string) $this->element['class'] . '"' : '';
 
		// To avoid user's confusion, readonly="true" should imply disabled="true".
 
		if ((string) $this->element['readonly'] == 'true' || (string) $this->element['disabled'] == 'true')
 
		{
 
			$attr .= ' disabled="disabled"';
 
		}
 
		$attr .= $this->element['size'] ? ' size="' . (int) $this->element['size'] . '"' : '';
 
		$attr .= $this->multiple ? ' multiple="multiple"' : '';
 
		$attr .= $this->required ? ' required="required" aria-required="true"' : '';
 
 
		// Initialize JavaScript field attributes.
 
		$attr .= $this->element['onchange'] ? ' onchange="' . (string) $this->element['onchange'] . '"' : '';
 
		// Get the field options.
 
		$options = (array) $this->getOptions();
 
		// Create a read-only list (no name) with a hidden input to store the value.
 
		if ((string) $this->element['readonly'] == 'true')
 
		{
 
			$html[] = JHtml::_('select.genericlist', $options, '', trim($attr), 'value', 'text', $this->value, $this->id);
 
			$html[] = '<input type="hidden" name="' . $this->name . '" value="' . $this->value . '"/>';
 
		}
 
		// Create a regular list.
 
		else
 
		{
 
			$value = is_array($this->value) ? $this->value : explode(',', $this->value);
 
			$html[] = JHtml::_('select.genericlist', $options, $this->name, trim($attr), 'value', 'text', $value, $this->id);
 
		}
 
		return implode($html);
 
	}
 
}