Topic Tag: Setting up custom fields

function media_info_func( $atts ) {
 
    // Attributes
    $atts = shortcode_atts(
        array(
            'field' => '',
            'info' => '',
        ),
        $atts
    );
 
    global $post, $wpdb;
     
    $field = $atts['field'];
    $info = $atts['info'];
   
    $image_url = get_post_meta( $post->ID, $field );
     
    $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE guid='%s';", $image_url )); 
    $attachment_id = $attachment[0]; 
     
    if ( $field && $info ) {
        switch($info) {
            case 'id':
                return $attachment_id;
                break;
            case 'title':
                // return return ("[wpv-post-title item='$attachment_id']"); 
                return wpv_do_shortcode("[wpv-post-title item='$attachment_id']");
                break;
            case 'alt':
                // return ("[wpv-post-field name='_wp_attachment_image_alt' item='$attachment_id']"); 
                return do_shortcode("[wpv-post-field name='_wp_attachment_image_alt' item='$attachment_id']");
                break;
            case 'caption':
                // return ("[wpv-post-excerpt output='raw' item='$attachment_id']"); 
                return do_shortcode("[wpv-post-excerpt output='raw' item='$attachment_id']");
                break;
            case 'description':
                // return ("[wpv-post-body view_template='None' item='$attachment_id']"); 
                return do_shortcode("[wpv-post-body view_template='None' item='$attachment_id' output='raw']");
                break;
        }
    }
}
add_shortcode( 'media-info', 'media_info_func' );

Image ID: [media-info field='wpcf-single-image' info='id']
Title: [media-info field='wpcf-single-image' info='title']
Alt text: [media-info field='wpcf-single-image' info='alt']
Caption: [media-info field='wpcf-single-image' info='caption']
Description: [media-info field='wpcf-single-image' info='description']