When a Geodir cpt has no featured image, try to add the og:image meta tag if the cpt has a default image
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add_filter( 'geodir_details_facebook_og', function( $fcb_og, $post ) {
if (
! empty( $fcb_og ) ||
! isset( $post->post_type ) ||
! is_singular( geodir_get_posttypes() )
) {
return $fcb_og;
}
$post_type_obj = geodir_post_type_object( $post->post_type );
if ( empty( $post_type_obj->default_image ) ) return $fcb_og;
$url = wp_get_attachment_url( $post_type_obj->default_image );
return $url ? '<meta property="og:image" content="' . esc_url_raw( $url ) . '"/>' : $fcb_og;
}, 99, 2 );PHP