Change 'com_calendar' and 'events' for your names...
You need those files:
MODEL :
(M1) - components/com_calendar/models/events.php
HELPER :
(H1) - administrator/components/com_calendar/helpers/helper.php
VIEW :
(V1) - components/com_calendar/views/events/tmpl/default_filters.php
(V2) - components/com_calendar/views/events/view.html.php
CONTROLLER :
(C1) - components/com_calendar/controllers/events.php
(M1)
class CalendarModelEvents extends CalendarModelList
{
...
function _buildQueryWhere()
{
$where = array();
$app = &JFactory::getApplication();
$db=& JFactory::getDBO();
$option = JRequest::getCmd('option');
$view = JRequest::getCmd('view');
$layout = JRequest::getCmd('layout', 'default');
$baseUserState = $option . '_' . $view . '.' . $layout . '.';
if ($this->_active['filter'])
{
$filter_type = $this->getState('filter_type');
if ($filter_type != '') $where[] = "a.type = " . $db->Quote($filter_type);
$filter_category = $this->getState('filter_category');
if ($filter_category != '') $where[] = "a.category = " . $db->Quote($filter_category);
>>> JUST ADD THOSE CODE ( CHANGE ANY DATE FOR YOUR FIELD NAME )
>>> $filter_date = $this->getState('filter_date');
>>> if ($filter_date != '') $where[] = "a.date = " . $db->Quote($filter_date);
>>> END
}
(H1)
class CalendarHelper
{
...
>>> ADD THOSE CODE ( CHANGE ANY DATE FOR YOUR FIELD NAME )
function dbList($ctrl, $fieldName)
{
$db =& JFactory::getDBO();
$query = 'SELECT *,'. $fieldName .' FROM #__' . 'calendar_'.$ctrl;
$db->setQuery( $query );
$list = $db->loadObjectList();
$lists[$ctrl][$fieldName] = array();
$id = 1;
foreach($list as $l ){
$lists[$ctrl][$fieldName][$id] = array("value" => $l->date, "text" => $l->date);
$id++;
}
return $lists[$ctrl][$fieldName];
}
>>> ....
(V1)
...
<script language="javascript" type="text/javascript">
<!--
function resetFilters()
{
if ($('filter_type') != null)
$('filter_type').value='';
if ($('filter_category') != null)
$('filter_category').value='';
>>>>>>>>>>>>>>>>>>>>
>>> if ($('filter_date') != null)
>>> $('filter_date').value='';
>>>>>>>>>>>>>>>>>>>>
....
window.addEvent('domready', function()
{
//Reset broken filter (if selected value is not anymore available)
if ( !checkFilter('filter_type', ("<?php echo($this->filters['type']->value); ?>" == ''))
|| !checkFilter('filter_category', ("<?php echo($this->filters['category']->value); ?>" == ''))
>>>>>
>>> || !checkFilter('filter_date', ("<?php echo($this->filters['date']->value); ?>" == '')))
>>>>>
....
<legend onclick="toggle_div('filters_wrapper');"><?php echo JText::_( "JSEARCH_FILTER_LABEL" ); ?></legend>
>>>>>
>>> <!-- SELECT : Datee -->
<div class='filter filter_date'>
<label for="filter_date"><?php echo(JText::_("CALENDAR_JSEARCH_DATE")); ?> :</label>
<?php echo JHTML::_('select.genericlist', $this->filters['date']->list, 'filter_date', " onchange = 'this.form.submit()'", 'value', 'text', $this->filters['date']->value);?>
</div>
>>>>>>>>
....
(V2)
class CalendarViewEvents extends JView
{
function display($tpl = null)
{
....
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>_________HERE......
$statesVars = array('limit', 'limitstart', 'filter_order', 'filter_order_Dir', 'filter_date', 'filter_type', 'filter_category');
....
function display_default($tpl = null)
{
.....
// table ordering
$lists['order'] = $model->getState('filter_order');
$lists['order_Dir'] = $model->getState('filter_order_Dir');
>>>> $lists['enum']['events.date'] = CalendarHelper::dbList('events', 'date');
.....
//Filters
//Date
$this->filters['date'] = new stdClass();
$this->filters['date']->list = $lists['enum']['events.date'];
array_unshift($this->filters['date']->list, array("value"=>"", "text" => JText::_("CALENDAR_FILTER_NULL_DATE")));
$this->filters['date']->value = $app->getUserState( $option . "_events.default.filter_date");
.....
(C1)
class CalendarControllerEvents extends CalendarController
{
var $ctrl = 'events';
var $singular = 'event';
function __construct($config = array())
{
parent::__construct($config);
$app = &JFactory::getApplication();
// Register the filtering request variables
$app->getUserStateFromRequest( $this->namespace . 'filter_type', 'filter_type', '', 'varchar' );
$app->getUserStateFromRequest( $this->namespace . 'filter_category', 'filter_category', '', 'varchar' );
>>>>> $app->getUserStateFromRequest( $this->namespace . 'filter_date', 'filter_date', '', 'date' );
....
//Predefine fields depending on filters values
$get = array();
$app = &JFactory::getApplication();
>>> //Date
>>> $filter_date = $app->getUserState( $this->namespace . "filter_date");
>>> if ($filter_date) $get[] = "filter_date=" . $filter_date;
//Type
$filter_type = $app->getUserState( $this->namespace . "filter_type");
if ($filter_type) $get[] = "filter_type=" . $filter_type;
