Reply To: ACF + Yoast XML Sitemap Image Inclusion

• Nicscott01

• March 30, 2022 at 5:59 pm

So I just wrote this routine which is more “hands off” when you’re adding blocks. You just register the block w/ this class and it should add images to the Yoast sitemap.

 class YoastSEOSitemapImages {

    public static $instance;
    private $registered_blocks;
    private $current_block;

    public function __construct() {
        
        $this->registered_blocks = [];
    

        add_filter( 'wpseo_sitemap_urlimages', [ $this, 'add_sitemap_images'], 10, 2 );

    }

    public function register_block_images( $block_name = '', $field_name = '', $field_type = 'image' ) {

        $this->registered_blocks[$block_name] = [
            'block_name' => $block_name,
            'field_name' => $field_name,
            'field_type' => $field_type,
        ];
        

    }

    public function is_registered_block( $block_name ) {

        $has_block = false;

        foreach ( $this->registered_blocks as $registered_block ) {

            if( $registered_block['block_name'] == $block_name ) {
               
               

               $this->current_block = $registered_block;

               $has_block = true;

            } 
                      

        }

        return $has_block;

    }

    
    public function add_sitemap_images( $images, $post_id ) {

      

        $post = get_post( $post_id );
        $images_to_add = [];
         
        if ( has_blocks( $post ) ) {
            
            $blocks = parse_blocks( $post->post_content );
                        

            foreach( $blocks as $block ) {

                if ( $this->is_registered_block( $block['blockName'] ) ) {

                    //var_dump( $block );

                    switch ( $this->current_block['field_type'] ) { 

                        case 'gallery' :
                        
                            $image_ids = $block['attrs']['data'][$this->current_block['field_name']];
                        
                            foreach( $image_ids as $imid ) {
                                $images_to_add[] = $imid;
                            }

                        break;

                        case 'repeater' :
                            
                            foreach( $block['attrs']['data'] as $key => $value ) {

                               

                                if ( strpos( $key, $this->current_block['field_name'] ) !== false ) {

                                    $images_to_add[] = $value;

                                }
                            }

                        case 'image' :
                        default :

                            

                            //Now grab the data from the attrs
                            $images_to_add[] = $block['attrs']['data'][$this->current_block['field_name']];

                        break;
                    }

                }
      
            }

        }

        foreach ( $images_to_add as $img_to_add ) {

            $images[] = [
                'src' => wp_get_attachment_image_url( $img_to_add, 'large', false),
                'title' => get_the_title( $img_to_add ),
                'alt' => get_post_meta( $img_to_add, '_wp_attachment_image_alt', true )
            ];

        }

 

        return $images;

    }

    public static function get_instance() {

        if ( self::$instance == null ) {
            self::$instance = new self;
        }

        return self::$instance;

    }

 }

 function BricSitemapImages() {

    return YoastSEOSitemapImages::get_instance();

 }

BricSitemapImages();

Then you could register the block that has an image field like this:

    BricSitemapImages()->register_block_images( 'acf/pretty-rows', 'image', 'repeater' );