function display($tpl = null)
{
global $mainframe;
require_once JPATH_COMPONENT_ADMINISTRATOR . DS . 'helpers' . DS . 'jucene.php';
// Initialize some variables
$pathway =& $mainframe->getPathway();
$uri =& JFactory::getURI();
$error = '';
$rows = null;
$total = 0;
$comParams =& JComponentHelper::getParams('com_jucene');
$displayServiceLink = $comParams->get('service_link', 1);
if ($displayServiceLink) {
$service_link = 'Powered by Zend Lucene, created by <a href="http://www.drupaler.cz">drupaler.cz</a>, Lukáš Beránek';
}
// Get some data from the model
$state =& $this->get('state');
$query = $state->get('query');
$params =& $mainframe->getParams();
$menus =& JSite::getMenu();
$menu = $menus->getActive();
// because the application sets a default page title, we need to get it
// right from the menu item itself
if (is_object($menu)) {
$menu_params = new JParameter($menu->params);
if (!$menu_params->get('page_title')) {
$params->set('page_title', JText::_('Jucene Search'));
}
} else {
$params->set('page_title', JText::_('Jucene Search'));
}
$document =& JFactory::getDocument();
$document->setTitle($params->get('page_title'));
//add search stylesheet and autocomplete jquery library, jquery_lib_min (dependency)
$document->addScript('components/com_jucene/js/jquery-1.4.4.min.js');
$document->addScript('components/com_jucene/js/jquery-ui-1.8.10.custom.min.js');
$document->addStyleSheet('components/com_jucene/css/jquery-ui-1.8.10.custom.css');
$document->addStyleSheet('components/com_jucene/css/search.css');
// built select lists
//TODO find a solution how to implement query builder or ordering and search areas e.g. search fields
$sorting = array();
$sorting[] = JHTML::_('select.option', 'Default', JText::_('SORT_REGULAR '));
$sorting[] = JHTML::_('select.option', 'Numeric', JText::_('SORT_NUMERIC '));
$sorting[] = JHTML::_('select.option', 'String', JText::_('SORT_STRING '));
$ordering = array();
$ordering[] = JHTML::_('select.option', 'Ascending', JText::_('SORT_ASC '));
$ordering[] = JHTML::_('select.option', 'Descending', JText::_('SORT_DESC '));
$lists = array();
//TODO fix sorting problem
$lists['sorting'] = JHTML::_('select.genericlist', $sorting, 'sorting', 'class="inputbox"', 'value', 'text', $state->get('sorting'));
$lists['ordering'] = JHTML::_('select.genericlist', $ordering, 'ordering', 'class="inputbox"', 'value', 'text', $state->get('ordering'));
$searchphrases = array();
$searchphrases[] = JHTML::_('select.option', 'all', JText::_('All words'));
$searchphrases[] = JHTML::_('select.option', 'any', JText::_('Any words'));
$searchphrases[] = JHTML::_('select.option', 'exact', JText::_('Exact phrase'));
$lists['searchphrase'] = JHTML::_('select.radiolist', $searchphrases, 'searchphrase', '', 'value', 'text', $state->get('match'));
$fields =& $this->get('fields');
sort($fields);
$field_list = "";
foreach ($fields as $field) {
$field_list .= '"' . $field . '",';
}
$document->addScriptDeclaration('
jQuery.noConflict();
$(function() {
var availableTags = [' . $field_list . '];
function split( val ) {
return val.split( /:\\s*/ );
}
function extractLast( term ) {
return split( term ).pop();
}
$( "#search_searchword" )// don\'t navigate away from the field on tab when selecting an item
.bind( "keydown", function( event ) {
if ( event.keyCode === $.ui.keyCode.TAB &&
$( this ).data( "autocomplete" ).menu.active ) {
event.preventDefault();
}
})
.autocomplete({
minLength: 0,
source: function( request, response ) {
// delegate back to autocomplete, but extract the last term
response( $.ui.autocomplete.filter(
availableTags, extractLast( request.term ) ) );
},
focus: function() {
// prevent value inserted on focus
return false;
},
select: function( event, ui ) {
var terms = split( this.value );
// remove the current input
terms.pop();
// add the selected item
terms.push( ui.item.value );
// add placeholder to get the comma-and-space at the end
terms.push( "" );
this.value = terms.join( ": " );
return false;
}
});
});
');
//TODO refactor this and move into the model and add some security measures - maybe they arent necessary, cause the search is used
// by trusted users and Lucene sanitazes the query via the query parser
$state->set('query', $query);
//prepare query
if (JuceneHelper::preprocessQuery($query)) {
$error = JText::_('SHORTSTRING');
}
if (!$error) {
$results =& $this->get('data');
$total =& $this->get('total');
$pagination =& $this->get('pagination');
$count = 0;
for ($i = 0; $i < count($results); $i++) {
//TODO add Jucene Highlighting here
$row =& $results[$i]->title;
//TODO add content preparation here - security checks or prepare content for displaying
//$row = SearchHelper::prepareSearchContent( $row, 200, $needle );
$result =& $results[$i];
$result->count = $i + 1;
}
}
$this->result = JText::sprintf('JUCENETOTALRESULTSFOUND', $total);
$this->assignRef('pagination', $pagination);
$this->assignRef('results', $results);
$this->assignRef('lists', $lists);
$this->assignRef('params', $params);
$this->assign('service_link', $service_link);
$this->assign('ordering', $state->get('ordering'));
$this->assign('sorting', $state->get('sorting'));
$this->assign('query', $state->get('query'));
$this->assign('field_list', $field_list);
$this->assign('total', $total);
$this->assign('error', $error);
$this->assign('action', $uri->toString());
parent::display($tpl);
}
