Single Post 404s

I’m still working on this (albeit at an intermittent pace) and I’ve just discovered that changing the common permalink settings to default (e.g. https://www.site.com/?p=123) gets everything working.

So, it seems to be a problem with the postname being called.
I’ve checked and I don’t have any categories or pages named the same as the two post types I created.

Anybody have any ideas at all?

Should not use same slug of post type and taxonomy.

If use same slug.

/work/foo-title/
/work/foo-term/

can not determine whether foo-title or foo-term is post-name or term-slug.

So, should set slug work-category to such as work/category.

Thanks for your response!

I think I understand what you are saying… the same word cannot be used in both the post type and taxonomy, right?

If so, I tried creating a new taxonomy that doesn’t use the word “work” but I still get a 404 on single posts. Here’s my new taxonomy in functions.php:

register_taxonomy(
        'category-one',
        'work', // apply to 'work' post type
        array(
            'label' => __( 'Work Categories (1)' ),
            'rewrite' => array( 'slug' => 'work' ),
            'hierarchical' => true,
            'show_ui' => true,
            'show_admin_column' => true
        )
    );

And my custom permalink now looks like: /work/%category-one%/%postname%/

Do you know why it still wouldn’t be working?

Thanks for your help.

Same word cannot be used in slug.
So, Should change $argument[“rewrite”][“slug”].

register_taxonomy(
        'work-category',
        'work',
        array(
            'label' => __( 'Work Categories' ),
            'rewrite' => array( 'slug' => 'work/category' ),
            'hierarchical' => true,
            'show_ui' => true,
            'show_admin_column' => true
        )
    );

Thanks for the quick reply.

My apologies if I’m missing something obvious, but by changing my slug to what you have suggested, I end up with following structure:

/work/ <–post type
/work/category/acting/ <–category
/work/acting/something/ <–single post 404

This isn’t working for me at all, so I’m guessing I have misunderstood you?

Please tell me default permalink setting.

Common Settings is set to Post Name.

But I was under the impression that the default settings are disregarded as soon as custom settings are put in place?

OK.

Please Regenerate rewrite rules. Click Save in wp-admin/options-permalink.php.

After Regenerate rewrite rules,
if /work/category/acting/ 404, register_taxonomy before _register_post_type.

Okay, I’ve saved wp-admin/options-permalink.php, so the rewrite rules have been flushed.
But I’m sorry, I don’t quite understand what you meant by:

After Regenerate rewrite rules,
if /work/category/acting/ 404, register_taxonomy before _register_post_type.

Can you elaborate please?
Thanks again for your patience and help.

For now, please install debug bar. And please visit the category page or single page.

And, please tell me the value of the “Matched Rewrite Rule”, “Matched Rewrite Query”.

Sure, thanks.

The value of “Matches Rewrite Rule” on a single post page is:

work/[^/]+/([^/]+)/?$

The “Matches Rewrite Query” value is:

attachment=something

Maybe you do not have commented out the flush_rewrite_rules()?
Should not use flush_rewrite_rules() in your code.

flush_rewrite_rules is used only when Regenerate rules.
flush_rewrite_rules should be used only when RewriteRule is regenerated.

When I delete a comment, the problem was reproduced.

Ah yes! I forgot to comment out the flush rewrite lines.

I just did so, resaved options-permalink.php and went back into my Permalink Settings and resaved and I’m no longer getting 404s on my single posts!

Thanks so much for your patience.

The only snag now is that my permalinks are set up as follows:

/work/
/work/category/faffing/ <– here is the problem: I don’t want “category” in there
/work/faffing/dirt-devil/

Is there any way to remove “category” from the taxonomy page urls?

Thanks so much again – at least the single posts are working now.

register_post_type and register_taxonomy add rewrite rule at last.

And, the priority of the rule, is determined by the order of registration.

If register_post_type has been executed before the register_taxonomy, post type rule has priority.
So, post that post_name is faffing and parent post_name is category will be searched.

Means that you can avoid this problem by running the register_taxonomy ahead register_post_type !

Okay, thanks for your response.

The thing is I am running register_taxonomy ahead of register_post_type.
Here’s the entire block of code from my functions.php file:

// custom categories
add_action( 'init', 'create_category' );
function create_category() {
    register_taxonomy(
        'work-category',
        'work',
        array(
            'label' => __( 'Work Categories' ),
            'hierarchical' => true,
            'show_ui' => true,
            'show_admin_column' => true,
            'rewrite' => array( 'slug' => 'work/category' )
        )
    );
    register_taxonomy(
        'blog-category',
        'blog',
        array(
            'label' => __( 'Blog Categories' ),
            'hierarchical' => true,
            'show_ui' => true,
            'show_admin_column' => true,
            'rewrite' => array( 'slug' => 'blog/category' ),
        )
    );
    //flush_rewrite_rules(); // dev purposes only
}

// custom post types
add_action( 'init', 'create_post_type' );
function create_post_type() {
    // create work post type
    register_post_type( 'work',
        array(
            'labels' => array(
                'name' => __( 'Work' ),
                'singular_name' => __( 'Work' ),
                'add_new' => __('Add New Work')
            ),
            'public' => true,
            'has_archive' => true,
            'menu_position' => 5
        )
    );
    // create blog post type
    register_post_type( 'blog',
        array(
            'labels' => array(
                'name' => __( 'Blog' ),
                'singular_name' => __( 'Post' ),
                'add_new' => __('Add New Blog Post')
            ),
            'public' => true,
            'has_archive' => true,
            'menu_position' => 5
        )
    );
    //flush_rewrite_rules(); // dev purposes only
}