Creating a RSS feed for several selected categories - osclass

Question

If I do this http://www.website.com/index.php?page=search&sCategory=123&sFeed=rss
I can create a RSS feed for a particular category. But what if I want to create a RSS feed for several selected categories? is it possible? OSClass version is 3.3.2

Answer 1

I didnt find a short or integrated way to do it, so I coded it.
<?php
define('ABS_PATH', str_replace('\\', '/', dirname($_SERVER['SCRIPT_FILENAME']) . '/'));
if(PHP_SAPI==='cli') {
define('CLI', true);
}
require_once ABS_PATH . 'oc-load.php';
$mSearch = Search::newInstance();
$array_categorias = array("16","22","23","24","31","33","43","102","119","121","122","123","124");
$aItems = $mSearch->doCustomSearch($array_categorias);
View::newInstance()->_exportVariableToView('items', $aItems);
// FEED REQUESTED!
header('Content-type: text/xml; charset=utf-8');
$feed = new RSSFeed;
$feed->setTitle(__('Latest listings added') . ' - ' . osc_page_title());
$feed->setLink(osc_base_url());
$feed->setDescription(__('Latest listings added in') . ' ' . osc_page_title());
$contador_items = osc_count_items();
if(osc_count_items()>0) {
while(osc_has_items()) {
if(osc_count_item_resources() > 0){
osc_has_item_resources();
$feed->addItem(array(
'title' => osc_item_title(),
'link' => htmlentities( osc_item_url(), ENT_COMPAT, "UTF-8" ),
'description' => osc_item_description(),
'dt_pub_date' => osc_item_pub_date(),
'image' => array( 'url' => htmlentities(osc_resource_thumbnail_url(), ENT_COMPAT, "UTF-8"),
'title' => osc_item_title(),
'link' => htmlentities( osc_item_url() , ENT_COMPAT, "UTF-8") )
));
} else {
$feed->addItem(array(
'title' => osc_item_title(),
'link' => htmlentities( osc_item_url() , ENT_COMPAT, "UTF-8"),
'description' => osc_item_description(),
'dt_pub_date' => osc_item_pub_date()
));
}
}
}
$feed->dumpXML();
?>
I also had to add a couple of custom methods to the search model
public function _makeSQLCustomCategories($categories)
{
$cadena_select = DB_TABLE_PREFIX."t_item.*, ".DB_TABLE_PREFIX."t_item.s_contact_name as s_user_name,";
$cadena_select = $cadena_select . DB_TABLE_PREFIX. "t_item_description.s_title, ";
$cadena_select = $cadena_select . DB_TABLE_PREFIX. "t_item_description.s_description";
$this->dao->select($cadena_select);
$this->dao->from( DB_TABLE_PREFIX.'t_item' );
$this->dao->from( DB_TABLE_PREFIX. 't_item_description');
$this->dao->where(DB_TABLE_PREFIX. 't_item_description.fk_i_item_id = '. DB_TABLE_PREFIX. 't_item.pk_i_id');
//$this->dao->where(DB_TABLE_PREFIX. 't_item.b_premium = 1');
$this->dao->where(DB_TABLE_PREFIX. 't_item.b_enabled = 1');
$this->dao->where(DB_TABLE_PREFIX. 't_item.b_active = 1');
$this->dao->where(DB_TABLE_PREFIX. 't_item.b_spam = 0');
$where_categorias = "(";
$contador_categorias = 0;
$tamano_categories = sizeof($categories);
foreach ($categories as $categoria)
{
$contador = $contador + 1;
$where_categorias = $where_categorias. DB_TABLE_PREFIX. 't_item.fk_i_category_id = ' . $categoria ;
if ($contador == $tamano_categories)
break;
$where_categorias = $where_categorias . " OR ";
}
$where_categorias = $where_categorias . ")";
$this->dao->where($where_categorias );
$this->dao->groupBy(DB_TABLE_PREFIX.'t_item.pk_i_id');
$this->dao->orderBy(DB_TABLE_PREFIX. 't_item.pk_i_id', 'DESC');
$sql = $this->dao->_getSelect();
// reset dao attributes
$this->dao->_resetSelect();
return $sql;
}
public function doCustomSearch($categories, $extended = true, $count = true)
{
$sql = $this->_makeSQLCustomCategories($categories);
$result = $this->dao->query($sql);
if($count) {
$sql = $this->_makeSQLCustomCategories($categories);
$datatmp = $this->dao->query( $sql );
if( $datatmp == false ) {
$this->total_results = 0;
} else {
$this->total_results = $datatmp->numRows();
}
} else {
$this->total_results = 0;
}
if( $result == false ) {
return array();
}
if($result) {
$items = $result->result();
} else {
$items = array();
}
if($extended) {
return Item::newInstance()->extendData($items);
} else {
return $items;
}
}