tableberg / includes / DynamicData / RestController.php

RestController.php in Tableberg – Simple Gutenberg Table Block trunk, at includes/DynamicData/RestController.php

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1	<?php
2
3	namespace Tableberg\DynamicData;
4
5	use WP_REST_Server;
6	use WP_REST_Request;
7	use WP_REST_Response;
8	use WP_Error;
9
10	class RestController
11	{
12	private $namespace = 'tableberg/v1';
13
14	private static $post_field_keys = array(
15	'post_title',
16	'post_excerpt',
17	'post_content',
18	'post_date',
19	'post_modified',
20	'post_author',
21	'post_status',
22	'permalink',
23	'featured_image',
24	);
25
26	public function register_routes()
27	{
28	register_rest_route(
29	$this->namespace,
30	'/dynamic-data/preview',
31	[
32	'methods' => WP_REST_Server::READABLE,
33	'callback' => [$this, 'get_preview'],
34	'permission_callback' => [$this, 'check_edit_permission'],
35	'args' => [
36	'key' => [
37	'required' => true,
38	'type' => 'string',
39	'sanitize_callback' => 'sanitize_text_field',
40	],
41	'postId' => [
42	'required' => false,
43	'type' => 'integer',
44	'sanitize_callback' => 'absint',
45	],
46	],
47	]
48	);
49
50	register_rest_route(
51	$this->namespace,
52	'/dynamic-data/meta-keys',
53	[
54	'methods' => WP_REST_Server::READABLE,
55	'callback' => [$this, 'get_meta_keys'],
56	'permission_callback' => [$this, 'check_edit_permission'],
57	'args' => [
58	'postId' => [
59	'required' => false,
60	'type' => 'integer',
61	'sanitize_callback' => 'absint',
62	],
63	],
64	]
65	);
66	}
67
68	public function check_edit_permission()
69	{
70	if (!current_user_can('edit_posts')) {
71	return new WP_Error(
72	'rest_forbidden',
73	__('You do not have permission to access dynamic data.', 'tableberg'),
74	['status' => 403]
75	);
76	}
77	return true;
78	}
79
80	public function get_preview(WP_REST_Request $request)
81	{
82	$key = $request->get_param('key');
83	$post_id = $request->get_param('postId') ?: $this->get_current_post_id();
84
85	$value = null;
86
87	if ($post_id) {
88	$value = in_array($key, self::$post_field_keys, true)
89	? $this->get_post_field_value($key, $post_id)
90	: $this->get_post_meta_value($key, $post_id);
91	}
92
93	return new WP_REST_Response([
94	'success' => true,
95	'value' => $value !== null ? (string) $value : null,
96	]);
97	}
98
99	public function get_meta_keys(WP_REST_Request $request)
100	{
101	$post_id = $request->get_param('postId') ?: $this->get_current_post_id();
102
103	if (!$post_id) {
104	return new WP_REST_Response([
105	'keys' => [
106	['key' => '_thumbnail_id', 'label' => __('Featured Image ID', 'tableberg')],
107	],
108	]);
109	}
110
111	$meta = get_post_meta($post_id);
112	$keys = [];
113
114	$allowed_private = ['_thumbnail_id', '_wp_page_template'];
115
116	if (is_array($meta)) {
117	foreach (array_keys($meta) as $key) {
118	if (strpos($key, '_') === 0 && !in_array($key, $allowed_private, true)) {
119	continue;
120	}
121
122	$keys[] = ['key' => $key];
123	}
124	}
125
126	return new WP_REST_Response([
127	'keys' => $keys,
128	]);
129	}
130
131	private function get_post_field_value(string $key, int $post_id)
132	{
133	$post = get_post($post_id);
134
135	if (!$post) {
136	return null;
137	}
138
139	switch ($key) {
140	case 'post_title':
141	return get_the_title($post);
142
143	case 'post_excerpt':
144	return has_excerpt($post) ? get_the_excerpt($post) : null;
145
146	case 'post_content':
147	return apply_filters('the_content', $post->post_content);
148
149	case 'post_date':
150	return get_the_date('', $post);
151
152	case 'post_modified':
153	return get_the_modified_date('', $post);
154
155	case 'post_author':
156	return get_the_author_meta('display_name', $post->post_author);
157
158	case 'post_status':
159	return $post->post_status;
160
161	case 'permalink':
162	return get_permalink($post);
163
164	case 'featured_image':
165	$thumbnail_id = get_post_thumbnail_id($post);
166	if ($thumbnail_id) {
167	$image = wp_get_attachment_image_src($thumbnail_id, 'full');
168	return $image ? $image[0] : null;
169	}
170	return null;
171
172	default:
173	return apply_filters(
174	'tableberg/dynamic_data/post_field_value',
175	null,
176	$key,
177	$post_id,
178	$post
179	);
180	}
181	}
182
183	private function get_post_meta_value(string $key, int $post_id)
184	{
185	$value = get_post_meta($post_id, $key, true);
186
187	if ($value === '' \|\| $value === false) {
188	return null;
189	}
190
191	return $value;
192	}
193
194	private function get_current_post_id()
195	{
196	$post = get_post();
197	return $post ? $post->ID : null;
198	}
199	}
200