我正在使用最近发布的插件的修改版本以及WP Total Cache。我正在使用post\\uu not\\u in，因为我不想再次显示当前帖子。它工作得很好，但如果对象缓存被激活，在某些帖子上，post\\u not\\u in不起作用。
这是我的代码：
<?php function nothing_recent_posts_init() {
register_widget(\'nothing_recent_posts\');
}
add_action(\'widgets_init\', \'nothing_recent_posts_init\');
class nothing_recent_posts extends WP_Widget {
function __construct() {
$widget_ops = array(\'classname\' => \'nothing_recent_posts\', \'description\' => __( "Customized version of Recent Posts. You can choose what to display and add custom classes.") );
parent::__construct(\'nothing-recent-posts\', __(\'Customized Recent Posts\'), $widget_ops);
$this->alt_option_name = \'nothing_recent_entries\';
add_action( \'save_post\', array($this, \'flush_widget_cache\') );
add_action( \'deleted_post\', array($this, \'flush_widget_cache\') );
add_action( \'switch_theme\', array($this, \'flush_widget_cache\') );
}
function widget($args, $instance) {
$cache = wp_cache_get(\'nothing_recent_posts\', \'widget\');
if ( !is_array($cache) )
$cache = array();
if ( ! isset( $args[\'widget_id\'] ) )
$args[\'widget_id\'] = $this->id;
if ( isset( $cache[ $args[\'widget_id\'] ] ) ) {
echo $cache[ $args[\'widget_id\'] ];
return;
}
ob_start();
extract($args);
$title = ( ! empty( $instance[\'title\'] ) ) ? $instance[\'title\'] : __( \'Recent Posts\' );
$title = apply_filters( \'widget_title\', $title, $instance, $this->id_base );
$number = ( ! empty( $instance[\'number\'] ) ) ? absint( $instance[\'number\'] ) : 10;
if ( ! $number )
$number = 10;
$show_title = isset( $instance[\'show_title\'] ) ? $instance[\'show_title\'] : false;
$show_date = isset( $instance[\'show_date\'] ) ? $instance[\'show_date\'] : false;
$show_img = isset( $instance[\'show_img\'] ) ? $instance[\'show_img\'] : false;
$custom_class = ( ! empty( $instance[\'custom_class\'] ) ) ? $instance[\'custom_class\'] : \' \';
$query_by_cat = isset( $instance[\'query_by_cat\'] ) ? $instance[\'query_by_cat\'] : false;
if( $query_by_cat ){
$current_category = wp_get_post_categories( get_the_id() );
$r = new WP_Query( apply_filters( \'widget_posts_args\', array(
\'category__in\' => $current_category,
\'posts_per_page\' => $number,
\'no_found_rows\' => true,
\'post_status\' => \'publish\',
\'ignore_sticky_posts\' => true,
\'post__not_in\' => array(get_the_id())
) ) );
}else{
$r = new WP_Query( apply_filters( \'widget_posts_args\', array(
\'posts_per_page\' => $number,
\'no_found_rows\' => true,
\'post_status\' => \'publish\',
\'ignore_sticky_posts\' => true,
\'post__not_in\' => array(get_the_id())
) ) );
}
if ($r->have_posts()) : ?>
<?php echo $before_widget; ?>
<?php if ( $title ) echo $before_title . $title . $after_title; ?>
<?php while ( $r->have_posts() ) : $r->the_post(); ?>
<article class="hentry <?php echo $custom_class; ?>">
<a href="<?php the_permalink(); ?>" rel="bookmark" title=\'Den Beitrag "<?php the_title(); ?>" ansehen\'>
<?php if ( $show_img ) : ?>
<div class="entry-thumbnail">
<?php the_post_thumbnail( \'thumbnail\' ); ?>
</div><!-- .entry-thumbnail -->
<?php endif; ?>
<?php if ( $show_title ) : ?>
<header class="widget-entry-header">
<div class="inner">
<h2><?php the_title(); ?></h2>
</div>
</header><!-- .entry-header -->
<?php endif; ?>
<?php if ( $show_date ) : ?>
<span class="post-date"><?php echo get_the_date(); ?></span>
<?php endif; ?>
</a>
</article>
<?php endwhile; ?>
<?php echo $after_widget; ?>
<?php wp_reset_postdata();
endif;
$cache[$args[\'widget_id\']] = ob_get_flush();
wp_cache_set(\'nothing_recent_posts\', $cache, \'widget\');
}
function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance[\'title\'] = strip_tags($new_instance[\'title\']);
$instance[\'number\'] = (int) $new_instance[\'number\'];
$instance[\'show_date\'] = isset( $new_instance[\'show_date\'] ) ? (bool) $new_instance[\'show_date\'] : false;
$instance[\'show_title\'] = isset( $new_instance[\'show_title\'] ) ? (bool) $new_instance[\'show_title\'] : false;
$instance[\'show_img\'] = isset( $new_instance[\'show_img\'] ) ? (bool) $new_instance[\'show_img\'] : false;
$instance[\'custom_class\'] = strip_tags($new_instance[\'custom_class\']);
$instance[\'query_by_cat\'] = isset( $new_instance[\'query_by_cat\'] ) ? (bool) $new_instance[\'query_by_cat\'] : false;
$this->flush_widget_cache();
$alloptions = wp_cache_get( \'alloptions\', \'options\' );
if ( isset($alloptions[\'nothing_recent_entries\']) )
delete_option(\'nothing_recent_entries\');
return $instance;
}
function flush_widget_cache() {
wp_cache_delete(\'nothing_recent_posts\', \'widget\');
}
function form( $instance ) {
$title = isset( $instance[\'title\'] ) ? esc_attr( $instance[\'title\'] ) : \'\';
$number = isset( $instance[\'number\'] ) ? absint( $instance[\'number\'] ) : 5;
$show_title = isset( $instance[\'show_title\'] ) ? (bool) $instance[\'show_title\'] : true;
$show_date = isset( $instance[\'show_date\'] ) ? (bool) $instance[\'show_date\'] : false;
$show_img = isset( $instance[\'show_img\'] ) ? (bool) $instance[\'show_img\'] : false;
$custom_class = isset( $instance[\'custom_class\'] ) ? esc_attr( $instance[\'custom_class\'] ) : \'\';
$query_by_cat = isset( $instance[\'query_by_cat\'] ) ? (bool) $instance[\'query_by_cat\'] : false;
?>
<p><label for="<?php echo $this->get_field_id( \'title\' ); ?>"><?php _e( \'Title:\' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( \'title\' ); ?>" name="<?php echo $this->get_field_name( \'title\' ); ?>" type="text" value="<?php echo $title; ?>" /></p>
<p><label for="<?php echo $this->get_field_id( \'number\' ); ?>"><?php _e( \'Number of posts to show:\' ); ?></label>
<input id="<?php echo $this->get_field_id( \'number\' ); ?>" name="<?php echo $this->get_field_name( \'number\' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
<p><input class="checkbox" type="checkbox" <?php checked( $show_title ); ?> id="<?php echo $this->get_field_id( \'show_title\' ); ?>" name="<?php echo $this->get_field_name( \'show_title\' ); ?>" />
<label for="<?php echo $this->get_field_id( \'show_title\' ); ?>"><?php _e( \'Display post title?\' ); ?></label></p>
<p><input class="checkbox" type="checkbox" <?php checked( $show_date ); ?> id="<?php echo $this->get_field_id( \'show_date\' ); ?>" name="<?php echo $this->get_field_name( \'show_date\' ); ?>" />
<label for="<?php echo $this->get_field_id( \'show_date\' ); ?>"><?php _e( \'Display post date?\' ); ?></label></p>
<p><input class="checkbox" type="checkbox" <?php checked( $show_img ); ?> id="<?php echo $this->get_field_id( \'show_img\' ); ?>" name="<?php echo $this->get_field_name( \'show_img\' ); ?>" />
<label for="<?php echo $this->get_field_id( \'show_img\' ); ?>"><?php _e( \'Display post image?\' ); ?></label></p>
<p><label for="<?php echo $this->get_field_id( \'custom_class\' ); ?>"><?php _e( \'Custom class:\' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( \'custom_class\' ); ?>" name="<?php echo $this->get_field_name( \'custom_class\' ); ?>" type="text" value="<?php echo $custom_class; ?>" /></p>
<p><input class="checkbox" type="checkbox" <?php checked( $query_by_cat ); ?> id="<?php echo $this->get_field_id( \'query_by_cat\' ); ?>" name="<?php echo $this->get_field_name( \'query_by_cat\' ); ?>" />
<label for="<?php echo $this->get_field_id( \'query_by_cat\' ); ?>"><?php _e( \'Filter by current category?\' ); ?></label></p>
<?php
}
}
