/**
* Public function that creates a single instance
*/
public static function getInstance()
{
if (!isset(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Handle drawing item list
*
* @param array $tag_params
* @param array $chilren
*/
public function tag_ItemList($tag_params, $children)
{
global $language;
$manager = ShopItemManager::getInstance();
$conditions = array();
$page_switch = null;
$order_by = array('id');
$order_asc = true;
$limit = null;
// create conditions
if (isset($tag_params['category'])) {
if (is_numeric($tag_params['category'])) {
$category_id = fix_id($tag_params['category']);
} else {
// specified id is actually text_id, get real one
$category_manager = ShopCategoryManager::getInstance();
$category = $category_manager->getSingleItem(array('id'), array('text_id' => fix_chars($tag_params['category'])));
if (!is_object($category)) {
return;
}
$category_id = $category->id;
}
$membership_manager = ShopItemMembershipManager::getInstance();
$membership_items = $membership_manager->getItems(array('item'), array('category' => $category_id));
$item_ids = array();
if (count($membership_items) > 0) {
foreach ($membership_items as $membership) {
$item_ids[] = $membership->item;
}
}
if (count($item_ids) > 0) {
$conditions['id'] = $item_ids;
} else {
$conditions['id'] = -1;
}
// make sure nothing is returned if category is empty
}
if (isset($tag_params['related'])) {
$relation_manager = ShopRelatedItemsManager::getInstance();
$item_id = fix_id($tag_params['related']);
$related_items = $relation_manager->getItems(array('related'), array('item' => $item_id));
$related_item_ids = array();
if (count($related_items) > 0) {
foreach ($related_items as $relationship) {
$related_item_ids[] = $relationship->related;
}
}
if (count($related_item_ids) > 0) {
$conditions['id'] = $related_item_ids;
} else {
$conditions['id'] = -1;
}
}
if (!(isset($tag_params['show_deleted']) && $tag_params['show_deleted'] == 1)) {
// force hiding deleted items
$conditions['deleted'] = 0;
}
if (isset($tag_params['filter']) && !empty($tag_params['filter'])) {
// filter items with name matching
$conditions['name_' . $language] = array('operator' => 'LIKE', 'value' => '%' . fix_chars($tag_params['filter']) . '%');
}
if (isset($tag_params['paginate'])) {
$per_page = is_numeric($tag_params['paginate']) ? $tag_params['paginate'] : 10;
$param = isset($tag_params['page_param']) ? fix_chars($tag_params['page_param']) : null;
$item_count = $manager->getItemValue('COUNT(id)', $conditions);
$page_switch = new PageSwitch($param);
$page_switch->setCurrentAsBaseURL();
$page_switch->setItemsPerPage($per_page);
$page_switch->setTotalItems($item_count);
// get filter params
$limit = $page_switch->getFilterParams();
}
if (isset($tag_params['order_by'])) {
$order_by = array(fix_chars($tag_params['order_by']));
}
// get items
$items = $manager->getItems($manager->getFieldNames(), $conditions, $order_by, $order_asc, $limit);
// create template
$template = $this->_parent->loadTemplate($tag_params, 'item_list_item.xml');
$template->registerTagHandler('_color_list', $this, 'tag_ColorList');
if (count($items) > 0) {
$gallery = null;
if (class_exists('gallery')) {
$gallery = gallery::getInstance();
}
$manufacturer_manager = ShopManufacturerManager::getInstance();
foreach ($items as $item) {
if (!is_null($gallery)) {
// get manufacturer logo
$manufacturer_logo_url = '';
if ($item->manufacturer != 0) {
$manufacturer = $manufacturer_manager->getSingleItem($manufacturer_manager->getFieldNames(), array('id' => $item->manufacturer));
if (is_object($manufacturer)) {
$manufacturer_logo_url = $gallery->getImageURL($manufacturer->logo);
}
}
// get urls for image and thumbnail
$image_url = $gallery->getGroupThumbnailURL($item->gallery, true);
$thumbnail_url = $gallery->getGroupThumbnailURL($item->gallery);
} else {
// default values if gallery is not enabled
$image_url = '';
$thumbnail_url = '';
$manufacturer_logo_url = '';
}
$rating = 0;
$params = array('id' => $item->id, 'uid' => $item->uid, 'name' => $item->name, 'description' => $item->description, 'gallery' => $item->gallery, 'size_definition' => $item->size_definition, 'colors' => $item->colors, 'image' => $image_url, 'thumbnail' => $thumbnail_url, 'manufacturer_logo_url' => $manufacturer_logo_url, 'author' => $item->author, 'views' => $item->views, 'price' => $item->price, 'tax' => $item->tax, 'currency' => $this->_parent->settings['default_currency'], 'weight' => $item->weight, 'votes_up' => $item->votes_up, 'votes_down' => $item->votes_down, 'rating' => $rating, 'priority' => $item->priority, 'timestamp' => $item->timestamp, 'visible' => $item->visible, 'deleted' => $item->deleted, 'item_change' => url_MakeHyperlink($this->_parent->getLanguageConstant('change'), window_Open('shop_item_change', 505, $this->_parent->getLanguageConstant('title_item_change'), true, true, url_Make('transfer_control', 'backend_module', array('module', $this->name), array('backend_action', 'items'), array('sub_action', 'change'), array('id', $item->id)))), 'item_delete' => url_MakeHyperlink($this->_parent->getLanguageConstant('delete'), window_Open('shop_item_delete', 400, $this->_parent->getLanguageConstant('title_item_delete'), false, false, url_Make('transfer_control', 'backend_module', array('module', $this->name), array('backend_action', 'items'), array('sub_action', 'delete'), array('id', $item->id)))));
$template->restoreXML();
$template->setLocalParams($params);
$template->parse();
}
}
// draw page switch if needed
if (!is_null($page_switch)) {
$params = array();
$children = array();
// pick up parameters from original array
foreach ($tag_params as $key => $value) {
if (substr($key, 0, 12) == 'page_switch_') {
$params[substr($key, 12)] = $value;
}
}
$page_switch->tag_PageSwitch($params, $children);
}
}