给出更多结果时如何获得随机项目?这有可能代替 osc_count_item_resources():
$max = osc_category_total_items();
$rand = rand(1,$max);
$item = $rand;
if (osc_get_item_resources($item)) {
然后显示项目详细信息?
这是我根据我在下面发布的函数使用的代码:
<?php // osc_query_item("category=".osc_category_id()); < working basic one
// display category-icon if no items present
if (osc_category_total_items() == 0) { ?>
<div class="icon">
<a href="<?php echo osc_search_category_url();?>">
<img src="<?php echo osc_current_web_theme_url('images/') . osc_category_name() .'.png' ?>" alt="" title=""/></a>
</div>
<?php
} else {
// then if category has items present, do query
osc_query_item(array('category' => osc_category_id(), 'page' => 0, 'results_per_page' => 3)) ;
// check WHILE custom-items-present AND images-enabled is TRUE
if ((osc_has_custom_items()) && (osc_images_enabled_at_items())) {
// if resources present get them
if (osc_count_item_resources()) {
**// show image from item**
?>
<div class="icon">
<a href="<?php echo osc_item_url() ; ?>">
<img src="<?php echo osc_resource_thumbnail_url() ; ?>" title="<?php echo osc_item_title(); ?>" alt="<?php echo osc_item_title() ; ?>" /></a>
</div>
<?php
} else {
// show icon from category with link from item
?>
<div class="icon">
<a href="<?php echo osc_item_url() ; ?>">
<img src="<?php echo osc_current_web_theme_url('images/nophoto.png') ; ?>" alt="" title=""/></a>
</div>
<?php
}}
// reset query for this category
osc_reset_custom_items () ;
}
// end of random items
?>
这是在查询本身之后给我所有结果的函数:
function osc_has_custom_items() {
if ( View::newInstance()->_exists('resources') ) {
View::newInstance()->_erase('resources') ;
}
if ( View::newInstance()->_exists('item_category') ) {
View::newInstance()->_erase('item_category') ;
}
if ( View::newInstance()->_exists('metafields') ) {
View::newInstance()->_erase('metafields') ;
}
if(View::newInstance()->_get('itemLoop')!='custom') {
View::newInstance()->_exportVariableToView('oldItem', View::newInstance()->_get('item'));
View::newInstance()->_exportVariableToView('itemLoop', 'custom');
}
$item = View::newInstance()->_next('customItems') ;
if(!$item) {
View::newInstance()->_exportVariableToView('item', View::newInstance()->_get('oldItem'));
View::newInstance()->_exportVariableToView('itemLoop', '');
} else {
View::newInstance()->_exportVariableToView('item', View::newInstance()->_current('customItems'));
}
return $item;
}
这是查询的功能:
function osc_query_item($params = null) {
// $mSearch = Search::newInstance();
$mSearch = new Search();
if($params==null) {
$params = array();
} else if(is_string($params)){
$keyvalue = explode("=", $params);
$params = array($keyvalue[0] => $keyvalue[1]);
}
foreach($params as $key => $value) {
switch($key) {
case 'author':
$tmp = explode(",", $value);
foreach($tmp as $t) {
$mSearch->fromUser($t);
}
break;
case 'category':
case 'category_name':
$tmp = explode(",", $value);
foreach($tmp as $t) {
$mSearch->addCategory($t);
}
break;
case 'country':
case 'country_name':
$tmp = explode(",", $value);
foreach($tmp as $t) {
$mSearch->addCountry($t);
}
break;
case 'region':
case 'region_name':
$tmp = explode(",", $value);
foreach($tmp as $t) {
$mSearch->addRegion($t);
}
break;
case 'city':
case 'city_name':
$tmp = explode(",", $value);
foreach($tmp as $t) {
$mSearch->addCity($t);
}
break;
case 'city_area':
case 'city_area_name':
$tmp = explode(",", $value);
foreach($tmp as $t) {
$mSearch->addCityArea($t);
}
case 'results_per_page':
$mSearch->set_rpp($value);
break;
case 'page':
$mSearch->page($value);
break;
case 'offset':
$mSearch->limit($value);
break;
default:
osc_run_hook('custom_query', $key, $value);
break;
}
}
View::newInstance()->_exportVariableToView("customItems", $mSearch->doSearch());
}
我也有这两个功能,我不确定哪个更好用。函数GET项目资源:
function osc_get_item_resources() {
if ( !View::newInstance()->_exists('resources') ) {
View::newInstance()->_exportVariableToView('resources', ItemResource::newInstance()->getAllResourcesFromItem( osc_item_id() ) ) ;
}
return View::newInstance()->_get('resources') ;
}
函数 COUNT 项资源:
function osc_count_item_resources() {
if ( !View::newInstance()->_exists('resources') ) {
View::newInstance()->_exportVariableToView('resources', ItemResource::newInstance()->getAllResourcesFromItem( osc_item_id() ) ) ;
}
return (int) View::newInstance()->_count('resources') ;
}