Making New Variables

Hello Matthew,

Thank you for your query.

You can register a new variable. Please check this ticket for more information:

https://support.rankmath.com/ticket/register-a-custom-template-variable/

If you need help with anything specific in there, please let us know so we can help.

Hi there,

Thanks for the follow up.

I do not quite follow the logic in your custom callback.
Would you mind letting me know what you would like the function to return so that I can advise further?

I am looking forward to helping you. Thank you.

Hi there,

Thanks for the follow up.

Please try the following code:

add_action( 'rank_math/vars/register_extra_replacements', function() {
   RankMath\Helper::register_var_replacement( 'FeaturedImgCap',array('GetFeaturedImageCaption'),$args = array(
	    'name'    => esc_html__( 'Featured Image Caption', 'rank-math' ),
			'desc'    => esc_html__( 'Caption of the Pages Featured Image', 'rank-math' ),
			'example' => esc_html__(GetFeaturedImageCaption())));
	
	
} );

function GetFeaturedImageCaption(){
	
	$post_id = $_GET['post'];
	$thumbnail_id    = get_post_thumbnail_id($post->ID);
	if($thumbnail_id){
    $attachment_meta = wp_get_attachment($thumbnail_id);
    return $attachment_meta['caption'];
    }

}

I hope this info helps. Thank you.

Hello,

Thank you for the follow up.

I have made a few changes to the code, the below should do the trick:

add_action( 'rank_math/vars/register_extra_replacements', 'register_my_replacements' );
function register_my_replacements() {
		RankMath\Helper::register_var_replacement(
			'FeaturedImgCap','get_featured_image_cap',
			array(
				'name'    => esc_html__( 'Featured Image Caption.', 'rank-math' ),
				'desc'    => esc_html__( 'Caption of the Pages Featured Image', 'rank-math' ),
				'example' => get_featured_image_cap(),
			)
		);}
	function get_featured_image_cap() {
    global $post;
    $post_id = $post->ID;
		if($post_id==''){
			$post_id = $_GET['post'];
		}
	$thumbnail_id = get_post_thumbnail_id($post_id);
	$attachment = get_post($thumbnail_id);
	
    $replacements = $attachment->post_excerpt;
	
    return $replacements;
	}

I hope this helps. Thank you.

​​​​​​​

HI Matthew,

Thanks for the follow up.

I am glad that the first solution works as for the second question, this will depend on how you are adding the image attachment, is it through a gallery block or perhaps a custom field?

Here is some example code that you can use to get all attachments except the featured image from a post:

if ( $post->post_type == 'data-design' && $post->post_status == 'publish' ) {
        $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 ) {
                
                //do something to $attachment
            }
             
        }
    }

I hope this info helps. Thank you.

Hi Matthew,

Thanks for the clarification.

No this filter is designed for use on the Rank Math metabox, to be able to use the replacements on other areas I would suggest that you get in touch with your theme author so that they can advise further on this.

I hope this info helps. Thank you.