WordPress纯代码实现ajax评论无限加载教程_Infinite_loading

$cpage = get_query_var('cpage') ? get_query_var('cpage') : 1;
 
if( $cpage > 1 ) {
	echo '<div class="comment_loadmore">More comments</div>
	<script>
	var ajaxurl = \'' . site_url('wp-admin/admin-ajax.php') . '\',
	    parent_post_id = ' . get_the_ID() . ',
    	    cpage = ' . $cpage . '
	</script>';
}

jQuery(function($){
        //加载更多按钮点击事件 
	$('.comment_loadmore').click( function(){
		var button = $(this);
                //减少当前评论页面的值 
		cpage - ;
		$.ajax({
			url : ajaxurl, 
			data : {
				'action': 'cloadmore', 
				'post_id': parent_post_id,//当前文章
				'cpage' : cpage,//当前评论页
			},
			type : 'POST',
			beforeSend : function ( xhr ) {
				button.text('加载中...'); 
			},
			success : function( data ){
				if( data ) {
					$('ol.comment-list').append( data ); 
					button.text('加载更多');
                                       //如果最后一页，则删除按钮
					if ( barley.cpage == 1 ) 
						button.remove();
				} else {
					button.remove();
				}
			}
		});
		return false;
	});

});

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add_action('wp_ajax_cloadmore', 'comments_loadmore_handler'); // wp_ajax_{action}
add_action('wp_ajax_nopriv_cloadmore', 'comments_loadmore_handler'); // wp_ajax_nopriv_{action}
 
function comments_loadmore_handler(){
 
	global $post;
	$post = get_post( $_POST['post_id'] );
	setup_postdata( $post );

	wp_list_comments( array(
		'avatar_size' => 100,
		'page' => $_POST['cpage'], 
		'per_page' => get_option('comments_per_page'),
		'style' => 'ol', 
		'short_ping' => true,
		'reply_text' => '回复',
	) );
	die;
}