0

正如标题所说，我试图仅显示媒体库中特定类别下的项目。无论他们是否依附于任何事物。

目前我可以获得所有图像，但我不确定如何将其缩小到某些类别。

这是我到目前为止所拥有的：

<select name="event-dropdown" onchange="document.location.href=this.options[this.selectedIndex].value;"> 
 <option value=""><?php echo esc_attr(__('Select Event')); ?></option> 
 <?php 
    $args = array(
        'hide_empty' => 0,
    );

  $categories = get_categories($args); 
  foreach ($categories as $category) {
    $option = '<option value="?cat='.get_cat_ID($category->cat_name).'">';
    $option .= $category->cat_name;
    $option .= ' ('.$category->category_count.')';
    $option .= '</option>';
    echo $option;
  }
 ?>
</select>
<?php
    $query_images_args = array(
        'post_type'         => 'attachment',
        'post_mime_type'    =>'image',
        'post_status'       => 'inherit',
        'posts_per_page'    => -1,
    );

    $query_images = new WP_Query($query_images_args);

    if($_GET['cat']){

        // not sure what to do here yet

    }else{
        // this part works fine
        foreach ( $query_images->posts as $image) {
            echo wp_get_attachment_image($image->ID);
        }
    }

?>

有人可以告诉我如何/如果可以做到这一点。我所能找到的只是与附加图像或发布图像有关的东西。我只想直接从图书馆中提取它们。

编辑标签也可以。它不必是类别。

4

1 回答 1

0

除非您为媒体库中的每个图像添加自定义元标记，否则您的查询将不起作用。

一个可能的解决方案，例如创建一个帖子，将其命名为相关的名称，标记您希望此帖子关联的所有类别，现在将您要显示的所有图像转储到此帖子中。

您可以使用此查询来弹出您想要显示的帖子和类别术语，以及附加到帖子的图像。

<?php
$args = array (
        'post_type' => 'post',
            'tax_query' => array(
            array(
            'taxonomy' => 'category',
            'field' => 'slug',
            'terms' => 'your-cat-name-here'
        )
    )
);
$custom_query = new WP_Query( $args );
if ( $custom_query->have_posts() ):
    while ( $custom_query->have_posts() ) :
        $custom_query->the_post();
         // Do stuff with the post content.
        $attachments = get_posts( array(
            'post_type' => 'attachment',
            'posts_per_page' => -1,
            'post_parent' => $post->ID,
            'exclude'     => get_post_thumbnail_id()
        ) );
        if ( $attachments ) {
            foreach ( $attachments as $attachment ) {
                $class = "post-attachment mime-" . sanitize_title( $attachment->post_mime_type );
                $thumbimg = wp_get_attachment_link( $attachment->ID, 'thumbnail-size', true );
                $image_title = $attachment->post_title;
                $caption = $attachment->post_excerpt;
                $description = $image->post_content;
                //print_r($attachment);
            echo '<div class="thumbnail"><a href="'.wp_get_attachment_url($attachment->ID).'" title="'.$attachment->post_excerpt.'"><figure><img src="'.wp_get_attachment_url($attachment->ID).'" /></figure></a></div>';
            }
            //End
            echo '</div>';  
        }

endwhile;

else:
     // we can insert something if Nothing found.
    echo "<h2>Sorry, but there's nothing here.</h2>";
endif;
wp_reset_query();

?>
于 2015-05-21T00:19:55.223 回答