elasticpress / includes / classes / REST / Taxonomies.php

Taxonomies.php in ElasticPress 5.0.0, at includes/classes/REST/Taxonomies.php

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1	<?php
2	/**
3	* Taxonomies REST API Controller
4	*
5	* @since 5.0.0
6	* @package elasticpress
7	*/
8
9	namespace ElasticPress\REST;
10
11	use ElasticPress\Features;
12
13	/**
14	* Taxonomies API controller class.
15	*
16	* @since 5.0.0
17	* @package elasticpress
18	*/
19	class Taxonomies {
20
21	/**
22	* Register routes.
23	*
24	* Registers the route using its own endpoint and the previous facets
25	* endpoint, for backwards compatibility.
26	*
27	* @return void
28	*/
29	public function register_routes() {
30	$args = [
31	'callback' => [ $this, 'get_taxonomies' ],
32	'methods' => 'GET',
33	'permission_callback' => [ $this, 'check_permission' ],
34	];
35
36	register_rest_route( 'elasticpress/v1', 'taxonomies', $args );
37	register_rest_route( 'elasticpress/v1', 'facets/taxonomies', $args );
38	}
39
40	/**
41	* Check that the request has permission.
42	*
43	* @return boolean
44	*/
45	public function check_permission() {
46	return current_user_can( 'edit_theme_options' );
47	}
48
49	/**
50	* Get filterable taxonomies.
51	*
52	* @param \WP_REST_Request $request Full details about the request.
53	* @return array
54	*/
55	public function get_taxonomies( \WP_REST_Request $request ) {
56	$filterable_taxonomies = Features::factory()->get_registered_feature( 'facets' )->types['taxonomy']->get_facetable_taxonomies();
57
58	$taxonomies = [];
59
60	foreach ( $filterable_taxonomies as $slug => $taxonomy ) {
61	$terms_sample = get_terms(
62	[
63	'taxonomy' => $slug,
64	'number' => 20,
65	]
66	);
67	if ( is_array( $terms_sample ) ) {
68	// This way we make sure it will be an array in the outputted JSON.
69	$terms_sample = array_values( $terms_sample );
70	} else {
71	$terms_sample = [];
72	}
73
74	$taxonomies[ $slug ] = [
75	'label' => $taxonomy->labels->singular_name,
76	'plural' => $taxonomy->labels->name,
77	'terms' => $terms_sample,
78	];
79	}
80
81	return $taxonomies;
82	}
83	}
84