Default image also showing on my nav bar

Hi yorgosgk

That’s unfortunate to hear. You have a theme which support featured images. How rare. The fix is easy enough:

Create a file wp-content/plugins/dfi-exclude-nav.php

and put the following code inside:

<?php
/**
 * Plugin Name:       Default Featured Image, exclude navigation items.
 * Plugin URI:        https://wordpress.org/support/topic/default-image-also-showing-on-my-nav-bar/
 * Version:           1.0
 */

function dfi_exclude_nav ( $dfi_id, $post_id ) {
	$post = get_post($post_id);
	if ( 'nav_menu_item' === $post->post_type ) {
		return 0; // Don't use DFI for this posttype
	}
	return $dfi_id; // the original featured image id
}
add_filter( 'dfi_thumbnail_id', 'dfi_exclude_nav', 10, 2 );

And activate this plugin in WordPress.

Let me know how it goes

Jan-Willem

• This reply was modified 3 years, 6 months ago by janw.oostendorp.

Sorry, I posted the wrong code. (of another question)
I’ve updated the code in the post above.
Can you try it?

Jan-Willem

Sorry I didn’t see your reply.

You can combine and mix them. But some might screw with others.
It probably should work if you give them the correct order.

But making 1 filter that handles all would probably be nicer.
implementing a category check would be:

<?php
/**
 * Plugin Name:       Default Featured Image, exclude navigation items.
 * Plugin URI:        https://wordpress.org/support/topic/default-image-also-showing-on-my-nav-bar/
 * Version:           1.0
 */

function dfi_exclude_nav( $dfi_id, $post_id ) {
	$post = get_post( $post_id );
	if ( 'nav_menu_item' === $post->post_type ) {
		return 0; // Don't use DFI for this posttype
	}

	// all which have 'animals' as a category
	if ( has_category( 'animals', $post_id ) ) {

		//sub category
		if ( has_category( 'cats', $post_id ) ) {
			return 7; // cats img
		} else if ( has_category( 'dogs', $post_id ) ) {
			return 8; // dogs img
		}

		return 6; // default animals picture
	}

	return $dfi_id; // the original featured image id
}

add_filter( 'dfi_thumbnail_id', 'dfi_exclude_nav', 10, 2 );

Let me know how it goes