I have looked around noth in StackOverflow and WP.SE.
Like many before me, I just want this structure
mysite.com/custom-post-type/custom-taxonomy-term/post-name
Or, in other words,
mysite.com/publication/book/post-name (single post)
mysite.com/publication/book/ (all posts in the term 'book')
mysite.com/publication/ (all posts in this publication CPT)
I followed this instruction by TheDeadMedic for making custom post type with custom taxonomy permalink, and another one by Matthew Boynes to fix the pagination issue.
All works well, except... everytime I open the single post, it returns the 404 page.
I have tried opening the Permalink page and setting flush_rewrite_rules() to no avail. I still can't open the single page.
The only fix that works is if I change the slug in my custom taxonomy to its original form.
So instead of publication (the rewrite slug for this tax, in accordance to my custom post type name), I would have the default type (the default slug for this tax). Which would defeat the purpose.
Here is my code.
Taxonomy.
function cptui_register_my_taxes_type() {
/**
* Taxonomy: Types.
*/
$labels = array(
"name" => __( 'Types', 'mysite' ),
"singular_name" => __( 'Type', 'mysite' ),
"menu_name" => __( 'Types', 'mysite' ),
"all_items" => __( 'All Types', 'mysite' ),
"edit_item" => __( 'Edit Types', 'mysite' ),
"view_item" => __( 'View Type', 'mysite' ),
"update_item" => __( 'Update Type Name', 'mysite' ),
"add_new_item" => __( 'Add New Type', 'mysite' ),
"new_item_name" => __( 'New Type Name', 'mysite' ),
"parent_item" => __( 'Parent Type', 'mysite' ),
"parent_item_colon" => __( 'Parent Type:', 'mysite' ),
"search_items" => __( 'Search Types', 'mysite' ),
"popular_items" => __( 'Popular Types', 'mysite' ),
"separate_items_with_commas" => __( 'Separate Types with commas', 'mysite' ),
"add_or_remove_items" => __( 'Add or remove Types', 'mysite' ),
"choose_from_most_used" => __( 'Choose from the most used Types', 'mysite' ),
"not_found" => __( 'No Types found', 'mysite' ),
"no_terms" => __( 'No types', 'mysite' ),
"items_list_navigation" => __( 'Types list navigation', 'mysite' ),
"items_list" => __( 'Types list', 'mysite' ),
);
$args = array(
"label" => __( 'Types', 'mysite' ),
"labels" => $labels,
"public" => true,
"hierarchical" => true,
"label" => "Types",
"show_ui" => true,
"show_in_menu" => true,
"show_in_nav_menus" => true,
"query_var" => true,
"rewrite" => array( 'slug' => 'publication', 'with_front' => true, 'hierarchical' => true, ),
"show_admin_column" => true,
"show_in_rest" => false,
"rest_base" => "",
"show_in_quick_edit" => true,
);
register_taxonomy( "tyoe", array( "publication" ), $args );
}
add_action( 'init', 'cptui_register_my_taxes_type' );
Custom Post Type
function cptui_register_my_cpts_publication() {
/**
* Post Type: Publication.
*/
$labels = array(
"name" => __( 'Publication', 'mysite' ),
"singular_name" => __( 'Publication', 'mysite' ),
"menu_name" => __( 'Publication', 'mysite' ),
"all_items" => __( 'All Publication', 'mysite' ),
"add_new" => __( 'Add New', 'mysite' ),
"add_new_item" => __( 'Add New Publication', 'mysite' ),
"edit_item" => __( 'Edit Publication', 'mysite' ),
"new_item" => __( 'New Publication', 'mysite' ),
"view_item" => __( 'View Publication', 'mysite' ),
"view_items" => __( 'View Publications', 'mysite' ),
"search_items" => __( 'Search Publications', 'mysite' ),
"not_found" => __( 'No publication found', 'mysite' ),
"not_found_in_trash" => __( 'No trashed publications', 'mysite' ),
"parent_item_colon" => __( 'Parent Publication:', 'mysite' ),
"featured_image" => __( 'Cover or illustration', 'mysite' ),
"set_featured_image" => __( 'Set cover or illustration for this publication', 'mysite' ),
"remove_featured_image" => __( 'Remove cover or illustration for this publication', 'mysite' ),
"use_featured_image" => __( 'Use as cover or illustration for this publication', 'mysite' ),
"archives" => __( 'Publication archives', 'mysite' ),
"insert_into_item" => __( 'Insert into publication info', 'mysite' ),
"uploaded_to_this_item" => __( 'Uploaded to publication info', 'mysite' ),
"filter_items_list" => __( 'Filter publication', 'mysite' ),
"items_list_navigation" => __( 'Publication list navigation', 'mysite' ),
"items_list" => __( 'Publication list', 'mysite' ),
"attributes" => __( 'Publication Attributes', 'mysite' ),
"parent_item_colon" => __( 'Parent Publication:', 'mysite' ),
);
$args = array(
"label" => __( 'Publication', 'mysite' ),
"labels" => $labels,
"description" => "",
"public" => true,
"publicly_queryable" => true,
"show_ui" => true,
"show_in_rest" => false,
"rest_base" => "",
"has_archive" => true,
"show_in_menu" => true,
"exclude_from_search" => false,
"capability_type" => "post",
"map_meta_cap" => true,
"hierarchical" => false,
"rewrite" => array( "slug" => "publication", "with_front" => false ),
"query_var" => true,
"menu_position" => 6,
"menu_icon" => "dashicons-format-aside",
"supports" => array( "title", "editor", "thumbnail", "comments", "revisions" ),
"taxonomies" => array( "type" ),
);
register_post_type( "publication", $args );
}
add_action( 'init', 'cptui_register_my_cpts_publication' );
Setting up the permalink
function change_permalink_publication( $link, $post ) {
if ( $post->post_type === 'publication' ) {
if ( $terms = get_the_terms( $post->ID, 'type' ) )
$link = str_replace( '%type%', current( $terms )->slug, $link );
}
return $link;
}
add_filter( 'post_type_link', 'change_permalink_publication', 10, 2 );
add_action( 'generate_rewrite_rules', 'change_permalink_publication_pagination' );
function change_permalink_publication_pagination( $wp_rewrite ) {
unset($wp_rewrite->rules['publication/([^/]+)/page/?([0-9]{1,})/?$']);
$wp_rewrite->rules = array(
'publication/?$' => $wp_rewrite->index . '?post_type=publication',
'publication/page/?([0-9]{1,})/?$' => $wp_rewrite->index . '?post_type=publication&paged=' . $wp_rewrite->preg_index( 1 ),
'publication/([^/]+)/page/?([0-9]{1,})/?$' => $wp_rewrite->index . '?type=' . $wp_rewrite->preg_index( 1 ) . '&paged=' . $wp_rewrite->preg_index( 2 ),
) + $wp_rewrite->rules;
}
Is there a way to fix this?