First Image in a Post as the Thumbnail, without double in Single?

Hi @kranzkrone,

Try replacing the code in the article with the following:

add_filter( 'get_post_metadata', function( $value, $object_id, $meta_key, $single ) {
	
	if ( $meta_key !== '_thumbnail_id' || $value ) {
		return $value;
	}

	preg_match( '~<img[^>]+wp-image-(\\d+)~', get_post_field( 'post_content', $object_id ), $matches );
	if ( $matches && ! is_single() ) {
		return $matches[1];
	}

	return $value;

}, 10, 4 );

This version amends the conditional with a ! is_single() function call, which makes sure that it’s only triggered on archive pages.

— Anders

Hey @anlino,

at first Glance your Code-Snippet works just fine but within the ?Single-View“ of an Article in the Post it doesn’t work within/for the ?Related Posts“ at the Bottom.

There at the Bottom for the ?Related Posts“, it still shows this BLANK-IMAGE kinda Placeholder. How can i fix this or can i even fix it?

Thank you for the Help so far. ??

Hey @anlino & @kranzkrone,

Is there anything we can do on this? I am trying to edit koji_get_fallback_image_url() but it’s not working.

– Nithin

Hi @kranzkrone,

Sorry for the late reply – I couldn’t find an obvious solution for getting this to work using the same filter structure. I did find a way to accomplish it by plugging the koji_get_fallback_image_url() function in your child theme as $nithinnn suggested, though.

Try the following code:

function koji_get_fallback_image_url() {

	$disable_fallback_image = get_theme_mod( 'koji_disable_fallback_image' );

	if ( $disable_fallback_image ) {
		return '';
	}

	global $post;

	preg_match( '~<img[^>]+wp-image-(\\d+)~', get_post_field( 'post_content', $post->ID ), $matches );

	if ( $matches ) {
		$image_url = wp_get_attachment_image_url( $matches[1], koji_get_preview_image_size() );
		return $image_url;
	}

	$fallback_image_id = get_theme_mod( 'koji_fallback_image' );

	if ( $fallback_image_id ) {
		$fallback_image = wp_get_attachment_image_src( $fallback_image_id, 'full' );
	}

	$fallback_image_url = isset( $fallback_image ) ? esc_url( $fallback_image[0] ) : get_template_directory_uri() . '/assets/images/default-fallback-image.png';

	return $fallback_image_url;

}

The koji_get_fallback_image_url() function is only used in previews, so it should work for your purposes. Note that this won’t tak effect if the fallback image setting in the Customizer is disabled.

— Anders

Thank you @anlino,

I was thinking to sit on it today and fix it, Your solution works.

Thanks a lot.

– Nithin

THANK you a lot @anlino for solving this Problem of mine. ??

IT works just fine.

I like, that you Answered after all. There are lots of Developers out there, that don’t even answer once but you Mr. are great!