使用瞬態API WordPress的中

Question

我想用瞬態API以做出更加快速的網站loading.i使用此代碼的組件，但是在所有的部件只顯示最新帖子沒有特定類別的職位

 <?php 
// Creating the widget 
class wpb_box extends WP_Widget { 
function __construct() { 
parent::__construct(
// Base ID of your widget 
'wpb_box', 
// Widget name will appear in UI 
__('ابزارک اختصاصی باکس مطالب خبرخوان', 'bigtheme'), 
// Widget description 
array('description' => __('ابزارک نمایش باکس مطالب از سایت های مختلف توسط آدرس خوراک یا فید سایت', 'bigtheme'),) 
); 
add_action('save_post', array($this, 'delete_query_caches')); 
} 
// Creating widget front-end 
// This is where the action happens 
/** 
    * Delete transients 
    */ 
    function delete_query_caches($post_id){ 
     if(!isset($_POST['post_type']) || $_POST['post_type'] !== 'post') return; 

     $categories = wp_get_post_terms($post_id, 'category'); 

     if($categories && ! is_WP_Error($categories)) { 
      foreach($categories as $cat) { 
       delete_transient('foo_featured_posts_' . $category); 
      } 
     } 
    } 
public function widget($args, $instance) { 
     $name = apply_filters('widget_title', $instance['name']); 
     $category = apply_filters('widget_title', $instance['category']); 
     $id = apply_filters('widget_title', $instance['id']); 
$link = apply_filters('widget_title', $instance['link']); 
     $display = apply_filters('widget_title', $instance['display']); 
     $color = apply_filters('widget_title', $instance['color']); 
// This is where you run the code and display the output 
?> 
<div class="col-sm-6 col-xs-12 padding5"> 
       <div class="article"> 
         <div class="title">  
          <h3><a href="<?php echo $link ?>" target="_blank"><?php echo $name ?></a></h3> 
          <div class="clear"></div> 
          <div class="line"></div> 
        </div> 

           <?php 
if (false === ($slider = get_transient('foo_featured_posts_' . $category))) { 

    $slider = new WP_Query(array(
      'post_status' =>'publish', 
      'post_type' =>'post', 
      'cat' =>''.$category.'', 
      'posts_per_page' =>'9'  
     )); 

    // Make a new query cache for 1 week 
    set_transient('foo_featured_posts_' . $category, $slider, 10 * MINUTE_IN_SECONDS); 

} 
if(!$slider->have_posts()) return; ?> 
<ul> 
<?php while($slider->have_posts()) : $slider->the_post(); ?> 
<li> 
<a href="<?php the_permalink() ?>" target="_blank"><?php the_title(); ?></a> 
<div style="display:<?php echo $display;?>" class="tooltiptext hidden-xs"><?php the_excerpt(); ?></div> 
</li> 
<?php endwhile; $slider->rewind_posts(); ?> 
</ul> 
<?php wp_reset_postdata(); ?> 
<div class="list"><a href="<?php echo $link ?>" target="_blank">مشاهده آرشیو کامل</a><a href="<?php echo $link ?>/feed" target="_blank"><img src="<?php bloginfo('template_url'); ?>/images/rss.png" width="18" height="18" alt="خوراک سایت" ></a></div> 
      </div> 
       </div> 
<?php 
echo $args['after_widget']; 
} 
public function form($instance) { 
     $name = (isset($instance[ 'name' ])) ? $instance[ 'name' ] : ''; 
     $category = (isset($instance[ 'category' ])) ? $instance[ 'category' ] : ''; 
$link = (isset($instance[ 'link' ])) ? $instance[ 'link' ] : ''; 
     $color = (isset($instance[ 'color' ])) ? $instance[ 'color' ] : ''; 
     $id  = (isset($instance[ 'id' ])) ? $instance[ 'id' ] : ''; 
     $display = (isset($instance[ 'display' ])) ? $instance[ 'display' ] : ''; 
?> 
      <p> 
       <label for="<?php echo $this->get_field_id('color'); ?>"><?php _e('رنگ باکس مطالب:'); ?></label> 
       <input class="widefat" id="<?php echo $this->get_field_id('color'); ?>" name="<?php echo $this->get_field_name('color'); ?>" type="text" value="<?php echo esc_attr($color); ?>" placeholder="مثال : #CCC , #dd3333 , black , blue" /> 
      </p> 
      <p> 
       <label for="<?php echo $this->get_field_id('name'); ?>"><?php _e('عنوان باکس:'); ?></label> 
       <input class="widefat" id="<?php echo $this->get_field_id('name'); ?>" name="<?php echo $this->get_field_name('name'); ?>" type="text" value="<?php echo esc_attr($name); ?>" /> 
      </p> 
      <p> 
       <label for="<?php echo $this->get_field_id('id'); ?>"><?php _e('آی دی دسته بندی'); ?></label> 
       <input class="widefat" id="<?php echo $this->get_field_id('id'); ?>" name="<?php echo $this->get_field_name('id'); ?>" type="text" value="<?php echo esc_attr($id); ?>" /> 
      </p> 
      <select id="<?php echo $this->get_field_id('category'); ?>" name="<?php echo $this->get_field_name('category'); ?>" class="widefat" style="width:100%;"> 
      <?php foreach(get_terms('category','parent=0&hide_empty=0') as $term) { ?> 
      <option <?php selected($instance['category'], $term->term_id); ?> value="<?php echo $term->term_id; ?>"><?php echo $term->name; ?></option> 
      <?php } ?>  
     </select> 
<p> 
       <label for="<?php echo $this->get_field_id('link'); ?>"><?php _e('لینک آرشیو'); ?></label> 
       <input class="widefat" id="<?php echo $this->get_field_id('link'); ?>" name="<?php echo $this->get_field_name('link'); ?>" type="text" value="<?php echo esc_attr($link); ?>" /> 
      </p> 

      <p> 
       <label><?php _e('نمایش توضیحات مطالب'); ?></label> 
       <select class="widefat" id="<?php echo $this->get_field_id('display'); ?>" name="<?php echo $this->get_field_name('display'); ?>"> 
        <option <?php selected($instance['display'], 'block'); ?> value="block">بله</option> 
        <option <?php selected($instance['display'], 'none'); ?> value="none">خیر</option> 
       </select> 
      </p> 

<?php 
} 
// Updating widget replacing old instances with new 
public function update($new_instance, $old_instance) { 
     $instance = array(); 
     $instance['name'] = (! empty($new_instance['name'])) ? strip_tags($new_instance['name']) : ''; 
     $instance['category'] = (! empty($new_instance['category'])) ? strip_tags($new_instance['category']) : ''; 
$instance['link'] = (! empty($new_instance['link'])) ? strip_tags($new_instance['link']) : ''; 
     $instance['link2'] = (! empty($new_instance['link2'])) ? strip_tags($new_instance['link2']) : ''; 
     $instance['id'] = (! empty($new_instance['id'])) ? strip_tags($new_instance['id']) : ''; 
     $instance['link3'] = (! empty($new_instance['link3'])) ? strip_tags($new_instance['link3']) : ''; 
     $instance['link4'] = (! empty($new_instance['link4'])) ? strip_tags($new_instance['link4']) : ''; 
     $instance['link5'] = (! empty($new_instance['link5'])) ? strip_tags($new_instance['link5']) : ''; 
     $instance['color'] = (! empty($new_instance['color'])) ? strip_tags($new_instance['color']) : ''; 
     $instance['display'] = (! empty($new_instance['display'])) ? strip_tags($new_instance['display']) : ''; 
     $instance['source'] = (! empty($new_instance['source'])) ? strip_tags($new_instance['source']) : ''; 
     $instance['time'] = (! empty($new_instance['time'])) ? strip_tags($new_instance['time']) : ''; 
     return $instance; 
    } 
} // Class wpb_box ends here 
// Register and load the widget 
function wpb_box() { 
register_widget('wpb_box'); 
} 
add_action('widgets_init', 'wpb_box'); 
?> 

相距不過是這個代碼正確使用瞬態API或不？

Answer 1

您正在創建一個瞬態：foo_featured_posts。

set_transient('foo_featured_posts', $featured, 10 * MINUTE_IN_SECONDS); 

如果你想顯示不同類別不同的​​事情，你應該爲每個類別瞬態：foo_featured_posts_cat_1，foo_featured_posts_cat_2等

set_transient('foo_featured_posts_' . $category, $featured, 10 * MINUTE_IN_SECONDS);