categories on attachment page

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I am using this function to display categories specified to a post having gallery on the image attachment page. 

<p>CATEGORY: <?php the_category(', '); ?></p>

The problem is that this function doesn’t return anything. I have also used this way to display categories but no success:

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    <?php $categories = get_the_category();
          $separator = ', ';
          $output = ''; 
          if($categories){ ?>
          <span>CATERGORY:</span>
    <?php foreach($categories as $category) {
    $output .= '<a href="'.get_category_link($category->term_id ).'" title="' . esc_attr( sprintf( __( "View all posts in %s" ), $category->name ) ) . '">'.$category->cat_name.'</a>'.$separator;
        }
    echo trim($output, $separator);
        }
        ?>

Can anyone tell where problem lies???

Thanks

Post Views: 1

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2 comments

  1. If you have WordPress 3.5 this will work.

    http://make.wordpress.org/core/2012/12/12/attachment-editing-now-with-full-post-edit-ui/

    First you need to enable this in your theme, Put this in your functions.php file in your theme root.

    add_action('init', 'wpse_77390_enable_media_categories' , 1);
function wpse_77390_enable_media_categories() {
   register_taxonomy_for_object_type('category', 'attachment');
}

    In your image.php or attachments.php file add:

    $tax = get_the_term_list( $post->ID, 'category' );
echo $tax;

    Then go and add some categories to a attachment.

  2. See the question / answer on this link.
    The answer have 2 different solutions, easy with default categories and taxonomies and also a solution with custom taxonomies only for media.