The theme registers four music-focused custom taxonomies with REST API support for block editor integration.

Taxonomy Overview

Location Taxonomy

Hierarchical taxonomy for geographical organization.

Registration: inc/core/custom-taxonomies.php
Function: extra_chill_register_custom_taxonomies()

Features:

• Parent/child hierarchy support
• Custom rewrite slug
• Quick edit support
• Admin column display

URL Structure:

/location/parent-location/
/location/parent-location/child-location/

Festival Taxonomy

Non-hierarchical taxonomy for festival tags.

Applies To: post, festival_wire

URL Structure:

/festival/festival-name/

Artist Taxonomy

Non-hierarchical taxonomy for music artist tags.

URL Structure:

/artist/artist-name/

Venue Taxonomy

Non-hierarchical taxonomy for music venue tags.

URL Structure:

/venue/venue-name/

Common Features

All taxonomies include:

• REST API Support: 'show_in_rest' => true
• Block Editor: Full Gutenberg integration
• Admin UI: Complete management interface
• Quick Edit: Inline editing support
• Admin Columns: Taxonomy display in post lists
• Query Variables: URL parameter support

Using Taxonomies

Assign Terms:

// In block editor or classic editor
wp_set_object_terms( $post_id, 'denver', 'location' );
wp_set_object_terms( $post_id, 'electric-forest', 'festival' );

Query Posts by Taxonomy:

$query = new WP_Query( array(
    'tax_query' => array(
        array(
            'taxonomy' => 'artist',
            'field'    => 'slug',
            'terms'    => 'artist-slug',
        ),
    ),
) );

Get Terms:

$artists = get_the_terms( $post_id, 'artist' );
$festivals = get_the_terms( $post_id, 'festival' );

Archive Pages

Each taxonomy generates archive pages automatically:

• /location/ – All locations
• /festival/ – All festivals
• /artist/ – All artists
• /venue/ – All venues

Archive Template: Uses theme’s archive template (extrachill_template_archive filter)

Taxonomy Badge Display

All taxonomies automatically display as badges via extrachill_display_taxonomy_badges() (hooked on extrachill_above_post_title by inc/core/actions.php).

Styling: assets/css/taxonomy-badges.css

REST API Endpoints

All taxonomies available via WordPress REST API:

GET /wp-json/wp/v2/location
GET /wp-json/wp/v2/festival
GET /wp-json/wp/v2/artist
GET /wp-json/wp/v2/venue

Why These Taxonomies

Location: Geographic content organization for regional festival coverage
Festival: Tag posts by music festival events
Artist: Organize content by musical artists (enables archive filtering)
Venue: Tag content by music venues and concert halls