gistfile1.txt

add_shortcode( 'office_logo', function( $atts = [], $content = '' ) {

    // Allow optional overrides
    $atts = shortcode_atts(
        [
            'post_id' => 0,      // property post ID (optional override)
            'size'    => 'full', // image size: thumbnail, medium, large, full
        ],
        $atts,
        'office_logo'
    );

    // Resolve the property post ID
    $post_id = absint( $atts['post_id'] );
    if ( ! $post_id ) {
        // Try to get from global $post context or queried object
        $post_id = get_the_ID();
        if ( ! $post_id ) {
            $post_id = get_queried_object_id();
        }
    }

    if ( ! $post_id ) {
        return ''; // No context to work with
    }

    // 1) From the property post, get the linked Office ID
    $office_id = get_post_meta( $post_id, '_office_id', true );
    $office_id = $office_id ? absint( $office_id ) : 0;

    if ( ! $office_id ) {
        return '';
    }

    // 2) From the Office post, get the _logo meta (attachment ID)
    $logo_id = get_post_meta( $office_id, '_logo', true );
    $logo_id = $logo_id ? absint( $logo_id ) : 0;

    if ( ! $logo_id ) {
        return '';
    }

    // Prefer WordPress' helper to output a full <img> tag (with alt/srcset)
    $img_html = wp_get_attachment_image(
        $logo_id,
        $atts['size'],
        false,
        [
            'loading' => 'lazy',
            'decoding' => 'async',
        ]
    );

    // Fallback: build a plain <img> if helper didn't return anything
    if ( ! $img_html ) {
        $src = wp_get_attachment_image_url( $logo_id, $atts['size'] );
        if ( ! $src ) {
            return '';
        }
        $alt = get_post_meta( $logo_id, '_wp_attachment_image_alt', true );
        $img_html = sprintf(
            '<img src="%s" alt="%s" loading="lazy" decoding="async" />',
            esc_url( $src ),
            esc_attr( $alt )
        );
    }

    return $img_html;
} );