隐藏加载更多按钮，如果没有需要加载的文章

Question

在我的首页我有一个加载更多按钮，每15个帖子后出现。它可以很好地工作，如果没有任何东西需要加载，那么加载更多按钮仍然会显示出来。当没有什么需要加载的时候，我只需按一下按钮，然后消失。但是，如果没有需要加载的帖子，我宁愿只加载更多的按钮。有没有人有任何想法，我怎么能解决这个问题。

我前page.php文件

<?php 
 

 
get_header(); 
 
get_template_part ('post-template/trendingg'); 
 
?> 
 

 

 

 
<script> 
 
    var now=2; // when click start in page 2 
 

 
    jQuery(document).on('click', '#load_more_btn', function() { 
 

 
     jQuery.ajax({ 
 
      type: "POST", 
 
      url: "<?php echo get_site_url(); ?>/wp-admin/admin-ajax.php", 
 
      data: { 
 
       action: 'my_load_more_function', // the name of the function in functions.php 
 
       paged: now, // set the page to get the ajax request 
 
       posts_per_page: 15 //number of post to get (use 1 for testing) 
 
      }, 
 
      success: function (data) { 
 

 
      if(data!=0){ 
 
       jQuery("#ajax").append(data); // put the content into ajax container 
 
       now=now+1; // add 1 to next page 
 
      }else{ 
 
       jQuery("#load_more_btn").hide(); 
 
      } 
 
      }, 
 
      error: function (errorThrown) { 
 
       alert(errorThrown); // only for debuggin 
 
      } 
 
     }); 
 
    }); 
 
</script> 
 

 
<section id="ajax"><!-- i have to change div to section, maybe a extra div declare --> 
 
<?php 
 

 
$the_query = new WP_Query([ 
 
    'posts_per_page' => 15, // i use 1 for testing 
 
     'orderby' => 'post_date', 
 
'order' => 'DESC', 
 
    'paged' => get_query_var('paged', 1) //page number 1 on load 
 
]); 
 

 
if ($the_query->have_posts()) { 
 

 
     $i = 0; 
 
     $j = 0; 
 
     while ($the_query->have_posts()) { 
 
      $the_query->the_post(); 
 

 
      if ($i % 5 === 0) { // Large post: on the first iteration and every 7th post after... ?> 
 
       <div class="row"> 
 
        <article <?php post_class('col-sm-12 col-md-12'); ?>> 
 
         <div class="large-front-container"> 
 
          <a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php the_post_thumbnail('full', array('class' => 'large-front-thumbnail')); ?></a> 
 
         </div> 
 
         <div class="front-page-date"><?php echo str_replace('mins', 'minutes', human_time_diff(get_the_time('U'), current_time('timestamp')) . ' ago'); ?></div> 
 
         <div class="front-page-post-title"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></div> 
 
         <p class="front-page-post-excerpt"><?php echo get_the_excerpt(); ?></p> 
 
         <div class="front-page-post-info"> 
 
          <a class="moretext" href="<?php the_permalink(); ?>">Read more</a> 
 
          <?php get_template_part('includes/front-shop-the-post'); ?> 
 
          <?php get_template_part('includes/share-buttons'); ?> 
 
          <div class="front-comments"><?php comments_popup_link ('0', '1', '%', 'comment-count', 'none'); ?></div> 
 
         </div> 
 
        </article> 
 
       </div> 
 
      <?php } else { // Small posts ?> 
 
       <?php if($j % 2 === 0){ echo '<div class="row">';} ?> 
 
       <article <?php post_class('col-sm-6 col-md-6'); ?>> 
 
        <div class="two-front-container"> 
 
         <a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php the_post_thumbnail('full', array('class' => 'medium-front-thumbnail')); ?></a> 
 
         <div> 
 
        <div class="front-page-date"><?php echo human_time_diff(get_the_time('U'), current_time('timestamp')) . ' ago'; ?></div> 
 
        <div class="front-page-post-title"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></div> 
 
        <p class="front-page-post-excerpt"><?php echo get_the_excerpt(); ?></p> 
 
        <div class="front-page-post-info"> 
 
         <a class="moretext" href="<?php the_permalink(); ?>">Read more</a> 
 
         <?php get_template_part('includes/front-shop-the-post'); ?> 
 
         <?php get_template_part('includes/share-buttons'); ?> 
 
         <div class="front-comments"><?php comments_popup_link ('0', '1', '%', 'comment-count', 'none'); ?></div> 
 
        </div> 
 
       </article> 
 
       <?php $j++; if($j % 2 === 0){ echo '</div>';}?> 
 
       <?php 
 
      } 
 
      $i++; 
 
     }?> 
 
    <?php 
 
}?> 
 
</section> 
 

 
<button id="load_more_btn">Load More Posts</button> <!-- button out of ajax container for load content and button displayed at the bottom --> 
 
<?php 
 
get_footer();

我的functions.php

//FRONT PAGE 
 
add_action('wp_ajax_my_load_more_function', 'my_load_more_function'); 
 
add_action('wp_ajax_nopriv_my_load_more_function', 'my_load_more_function'); 
 

 
function my_load_more_function() { 
 

 
    $query = new WP_Query([ 
 
     'posts_per_page' => $_POST["posts_per_page"], 
 
     'orderby' => 'post_date', 
 
'order' => 'DESC', 
 
     'paged' => get_query_var('paged', $_POST["paged"]) 
 
    ]); 
 

 

 
    if ($query->have_posts()) { 
 

 
     $i = 0; 
 
     $j = 0; 
 

 
     while ($query->have_posts()) { 
 
       $query->the_post(); 
 

 
      if ($i % 5 === 0) { // Large post: on the first iteration and every 7th post after... ?> 
 
<div class="row"> 
 
        <article <?php post_class('col-sm-12 col-md-12'); ?>> 
 
         <div class="large-front-container"> 
 
          <a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php the_post_thumbnail('full', array('class' => 'large-front-thumbnail')); ?></a> 
 
         </div> 
 
         <div class="front-page-date"><?php echo str_replace('mins', 'minutes', human_time_diff(get_the_time('U'), current_time('timestamp')) . ' ago'); ?></div> 
 
         <div class="front-page-post-title"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></div> 
 
         <p class="front-page-post-excerpt"><?php echo get_the_excerpt(); ?></p> 
 
         <div class="front-page-post-info"> 
 
          <a class="moretext" href="<?php the_permalink(); ?>">Read more</a> 
 
          <?php get_template_part('includes/front-shop-the-post'); ?> 
 
          <?php get_template_part('includes/share-buttons'); ?> 
 
          <div class="front-comments"><?php comments_popup_link ('0', '1', '%', 'comment-count', 'none'); ?></div> 
 
         </div> 
 
        </article> 
 
       </div> 
 
      <?php } else { // Small posts ?> 
 
       <?php if($j % 2 === 0) echo '<div class="row">'; ?> 
 
           <article <?php post_class('col-sm-6 col-md-6'); ?>> 
 
        <div class="two-front-container"> 
 
         <a title="<?php the_title_attribute(); ?>" href="<?php the_permalink(); ?>"><?php the_post_thumbnail('full', array('class' => 'medium-front-thumbnail')); ?></a> 
 
         <div> 
 
        <div class="front-page-date"><?php echo human_time_diff(get_the_time('U'), current_time('timestamp')) . ' ago'; ?></div> 
 
        <div class="front-page-post-title"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></div> 
 
        <p class="front-page-post-excerpt"><?php echo get_the_excerpt(); ?></p> 
 
        <div class="front-page-post-info"> 
 
         <a class="moretext" href="<?php the_permalink(); ?>">Read more</a> 
 
         <?php get_template_part('includes/front-shop-the-post'); ?> 
 
         <?php get_template_part('includes/share-buttons'); ?> 
 
         <div class="front-comments"><?php comments_popup_link ('0', '1', '%', 'comment-count', 'none'); ?></div> 
 
        </div> 
 
       </article> 
 
       <?php $j++; if($j % 2 === 0) echo '</div>'; ?> 
 
       <?php 
 
      } 
 
      $i++; 
 

 
     } 
 
     wp_reset_query(); 
 
    }else{ 
 
     return 0; 
 
    } 
 

 
    exit; 
 
}

Answer 1

你必须开始考虑一个总您正在循环的帖子数量。如果你已经达到帖子的总数，这意味着没有别的东西可以加载，尽管你不能渲染按钮。

你必须创建一个类型的分页系统，让你知道你在哪里的情况。您需要知道当前查询的帖子总数中每篇帖子的数量是多少，这样您就可以知道是否达到了最后一个。

检查这个帖子，他们利用POST_COUNT的查询： https://wordpress.stackexchange.com/questions/74920/post-count-only-shows-the-number-of-results-per-page