修改

Question

我使用AJAX来显示更多＆＃34;。目前我的自定义帖子类型显示最初是12，当＆＃34;显示更多＆＃34;单击按钮，在页面上加载了12个post-types。

问题：首次点击后，会显示12。但每次点击都会继续，它会继续重复之前填充的12个项目。

问题：当用户点击＆＃34;显示更多＆＃34;。

时，如何正确使用AJAX来显示12秒的帖子？

Functions.php中的AJAX处理程序

function ajax_more_team($offset) {

  $offset = $offset + 12;
  header("Content-Type: text/html");

  $args = array(
      'suppress_filters' => true,
      'post_type'   =>  'team',
      'posts_per_page'  =>  12,
      'offset'  =>  $offset,
  );

  $the_query = new WP_Query($args);

     if ($the_query -> have_posts()) :  while ($the_query -> have_posts()) : $the_query -> the_post();

          //Loop content            

        endwhile;
     endif;
  wp_reset_postdata();
  die($out);
}

Jquery功能

var count = 0;

function load_more_team(count) {

    var count = count + 12

    var button = $('#more_posts'),
        data =  {
            'action': 'ajax_more_team',
            'offset': count
        }

    $.ajax({
        url: team_ajax.ajaxurl,
        data: data,
        type: 'POST',
        dataType: 'html',
        success: function(data){
            if(data.length){
                $("#ajax_posts").append(data);
                button.attr("disabled",false);

            } else{
                button.attr("disabled",true);
            }
        }
    });
    return false;
}

$('#more_posts').click(function() {
    $("#more_posts").attr("disabled",true); // Disable the button, temp.
    load_more_team();
});

修改

为了添加一些额外的上下文，我添加了初始页面模板循环。

page.php文件

<div id="ajax_posts" class="row">

        <?php
            $args = array(
                'post_type' =>  'team',
                'posts_per_page'    =>  12
            );
            $the_query = new WP_Query($args);
        ?>

        <?php if($the_query->have_posts()) : while($the_query->have_posts()) : $the_query->the_post(); ?>
            <?php $id = get_the_id(); ?>
            <div class="col-6 col-md-4 col-lg-3 col-xl-2 mb-4">
                <div class="team-member">
                    <a href="#" data-toggle="modal" data-target="#<?php echo $id ?>">
                        <img class="img-fluid" src="<?php the_field('employee_headshot'); ?>" alt="<?php the_field('employee_name'); ?>">
                    </a>
                    <div class="team-info">
                        <h6><?php the_field('employee_name'); ?></h6>
                    </div>
                    <a href="" data-toggle="modal" data-target="#myModal">
                        <div class="modal-icon">
                            <img class="img-fluid" src="<?php bloginfo('template_directory');?>/imgs/modal-icon.svg">
                        </div>
                    </a>
                </div>
                <!-- Modal -->
                <div class="modal fade" id="<?php echo $id ?>" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
                    <div class="modal-dialog" role="document">
                        <div class="modal-content">
                            <div class="team-close-btn">
                                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                                    <span aria-hidden="true">&times;</span>
                                </button>
                            </div>
                            <div class="modal-body">
                                <img class="img-fluid" src="<?php the_field('employee_headshot'); ?>" alt="Alice George">
                                <div class="team-info">
                                    <h6><?php the_field('employee_name'); ?></h6>
                                    <p><strong>Title:<br></strong> <?php the_field('employee_title'); ?></p>
                                    <p><strong>Company:<br></strong> <?php the_field('employee_company'); ?></p>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        <?php endwhile; endif; ?>
    </div>
    <?php 
        if( $the_query->max_num_pages > 1)
        echo '<div id="more_posts" class="btn-primary mt-4">View More</div>'
    ?>
    <?php wp_reset_postdata(); ?>
</div>

Answer 1

已更新为您的代码，这应该适合您。我认为计数有点令人困惑，因为对我来说，如果它是一个总金额或当前页面，它是不是很清楚。

不确定你如何在PHP函数中收到$ offset值，但这里的$ offset应该只是POST值＆＃39; offset＆＃39;，no + 12或者其他任何内容。这种方式在第一次调用时你的偏移量为0，从第1行开始获得前12条记录，下次你有12的偏移并获得接下来的12条记录（从第13行开始）。您的post_per_page保持为12，而偏移量则相乘。偏移量表示应该从哪些记录开始采用＆＃34; post_per_page＆＃34;量。

function ajax_more_team($offset) {

  $offset = $_POST['offset'];
  header("Content-Type: text/html");

  $args = array(
      'suppress_filters' => true,
      'post_type'   =>  'team',
      'posts_per_page'  =>  12,
      'offset'  =>  $offset,
  );

  $the_query = new WP_Query($args);

     if ($the_query -> have_posts()) :  while ($the_query -> have_posts()) : $the_query -> the_post();

          //Loop content            

        endwhile;
     endif;
  wp_reset_postdata();
  die($out);
}

-

var page = 1; // first page

function load_more_team() {


var button = $('#more_posts'),
    data =  {
        'action': 'ajax_more_team',
        'offset': page * 12 // first time 0 * 12 = offset 0
    }

$.ajax({
    url: team_ajax.ajaxurl,
    data: data,
    type: 'POST',
    dataType: 'html',
    success: function(data){
        if(data.length){
            $("#ajax_posts").append(data);
            button.attr("disabled",false);

        } else{
            button.attr("disabled",true);
        }
        page++; // increment page after first request
    }


});


return false;
}

Answer 2

var page = 2; // first page already loaded

function load_more_team() {
var button = $('#more_posts'),
    data =  {
        'action': 'ajax_more_team',
        'paged': page
    }

$.ajax({
    url: team_ajax.ajaxurl,
    data: data,
    type: 'POST',
    dataType: 'html',
    success: function(data){
        if(data.length){
            $("#ajax_posts").append(data);
            button.attr("disabled",false);

        } else{
            button.attr("disabled",true);
        }
        page++; // increment page after request
    }
});
return false;
}

function ajax_more_team() {
  $paged = $_POST['paged'];
  header("Content-Type: text/html");

  $args = array(
      'suppress_filters' => true,
      'post_type'   =>  'team',
      'post_status' => 'publish',
      'posts_per_page'  =>  12,
      'paged'  =>  $paged,
  );

  $the_query = new WP_Query($args);

     if ($the_query -> have_posts()) :  while ($the_query -> have_posts()) : $the_query -> the_post();

          //Loop content            

        endwhile;
     endif;
  wp_reset_postdata();
  die($out);
}

AJAX请求重复项

修改

2 个答案: