在repeater字段中发布对象（WordPress ACF）

Question

我在WordPress与ACF合作。

我有一个自定义的帖子类型称为Projects。在那里，用户可以选择通过ACF中继器字段上传2张特色图像。

现在，在主页上，我已经给用户提供了从项目帖子类型中选择8个帖子对象的选项。

我需要能够循环通过这个主页转发器字段，并从每个“项目”帖子对象中提取特征图像和项目标题。

ACF最近贬低了repeater_field函数，我认为它把我扔在这里。

但是，到目前为止，我一直在努力解决以下问题：

<!-- check for repeater field -->
<?php if(get_field('featured-projects')): ?>

    <?php while(has_sub_field('featured-projects')): ?>

        <!-- get project post objects -->
        <?php $projects = get_sub_field('project'); ?>

        <!-- without the loop below, this echo's all 8 projects ID's -->
        <?php echo($projects->ID); ?><br />

        <!-- when added, only pulls the first project. And limits the echo above to the first ID -->
        <?php $loop = new WP_Query( array( 
            'post_type' => 'projects',
            'p' => $projects->ID
        ) ); ?>

        <?php while ( $loop->have_posts() ) : $loop->the_post(); ?>

            <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>


        <?php endwhile; ?>


    <?php endwhile; ?>

<?php endif; ?>

我试图对代码进行注释，但如果有任何不合理的地方，请告诉我。

Answer 1

我是这样做的，尽管我意识到这与你的方法不同。我在代码注释中包含了解释：

<?php $featured_projects = get_field('featured-projects'); //Set $featured_projects to equal the array of projects from the home page repeater. ?>

<!-- check for repeater field -->
<?php if($featured_projects): ?>

      <?php foreach($featured_projects as $featured_project) : //Loop through each featured project ?>

          <?php  $project_id = $featured_project['project']->ID; //Get the id for the current featured project ?>

          <?php $project_title = get_the_title($project_id); //set $title to be the title of the project ?> 
          <?php project_featured_images = get_field('name-of-featured-repeater-field-here', $project_id); //get the repeater field of the featured images from the project post ?>



          <h1 class='title'><?php echo $project_title; //print the title ?></h1>

          <?php if($project_featured_images[0]): //check if you have a 1st image (size large) ?> 
              <img class='featured-image-one' src="<?php echo $project_featured_images[0]['name-of-the-featured-image-sub-field-here']['sizes']['large']; //print the url to the 1st image; ?>"/>
          <?php endif; ?>

          <?php if($project_featured_images[1]): //check if you have a 2nd image ?> 
              <img class='featured-image-two' src="<?php echo $project_featured_images[1]['name-of-the-featured-image-sub-field-here']['sizes']['large']; //print the url to the 2nd image (size large); ?>"/>
          <?php endif; ?>

      <?php endforeach; ?>

<?php endif; ?>

确保填写项目特色图像转发器字段的名称，以及该转发器中图像子字段的名称。这显然是一个比API版本更标准的基于PHP的解决方案。我通常根据Elliot Candon（ACF开发者）的建议使用此方法。

您还可以通过将“大”更改为另一个标准尺寸或添加自定义尺寸来获得功能图像的不同图像尺寸。