Can't edit categories

Support Version 1.x
1

I wanted to edit the descriptions of some of my categories, but ClassicPress breaks when I click on ‘Edit’ - I get a blank screen in my CP admin. Is this a known bug, or something related to my setup? I tried with different themes enabled, so that shouldn’t really be the issue.

2

Could be a plugin conflict. Try disabling each plugin and rechecking to find the culprit, better with error logging enabled.

EDITED TO ADD: just confirmed (My CP is on PHP8, and I have some WP plugins installed and a theme that the dash marks as installable from the WP repo). I need to investigate further because it is not likely we have the same environment and setup. So it might be a problem with CP.

@viktor and @MattyRob I will post here my results as soon as I understand what is going on so that you can check.

3

hmmm… same here

CP 1.5.0

all http status codes are 200 when the page loads - - i’ll try more troubleshooting later

1 Like
4

it doesn’t seem to be a plugin, I disabled all of them and the same thing happens. No errors in the console apart from a shield plugin same site cookie and I have the 2015 CP version on for the theme, just to test if it was the theme. Going to enable logging to see if there is something wrong there.

5

And bingo, we do have a fatal.

Fatal error: Uncaught Error: Call to undefined function is_taxonomy_viewable() in ***/wp-includes/admin-bar.php:731 Stack trace: #0 ***/wp-includes/class-wp-hook.php(287): wp_admin_bar_edit_menu() #1 ***/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters() #2 ***/wp-includes/plugin.php(524): WP_Hook->do_action() #3 ***/wp-includes/admin-bar.php(86): do_action_ref_array() #4 ***httpdocs/wp-includes/class-wp-hook.php(287): wp_admin_bar_render() #5 ***/httpdocs/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters() #6 ***/wp-includes/plugin.php(458): WP_Hook->do_action() #7 ***/wp-admin/admin-header.php(230): do_action() #8 ***/wp-admin/term.php(68): require_once('...') #9 {main} thrown in ***/wp-includes/admin-bar.php on line 731

The culprit seems to be the admin-bar.php and admin-header.php but being not so confident I leave the interpretation to the experienced devs.

6

@adastra @classyMan

I’m sorry about that. It’s a known issue that was reported, and we already have a fix scheduled for 1.5.1 coming soon:

A temporary fix to make the edit page work is to add the following code to your theme’s functions.php:

if ( ! function_exists( 'is_taxonomy_viewable' ) ) :
function is_taxonomy_viewable( $taxonomy ) {
	if ( is_scalar( $taxonomy ) ) {
		$taxonomy = get_taxonomy( $taxonomy );
		if ( ! $taxonomy ) {
			return false;
		}
	}
	return $taxonomy->publicly_queryable;
}
endif;

Please let me know if you run into any issues.

2 Likes
7

Same here, was gonna ask if it was me or the code, i had assumed it was me because my code is normally quite drunk and disorderly.

2 Likes
8

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