falang / uninstall.php

uninstall.php in Falang multilanguage for WordPress trunk, at uninstall.php

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1	<?php
2
3	/**
4	* Fired when the plugin is uninstalled.
5	*
6	* When populating this file, consider the following flow
7	* of control:
8	*
9	* - This method should be static
10	* - Check if the $_REQUEST content actually is the plugin name
11	* - Run an admin referrer check to make sure it goes through authentication
12	* - Verify the output of $_GET makes sense
13	* - Repeat with other user roles. Best directly by using the links/query string parameters.
14	* - Repeat things for multisite. Once for a single site in the network, once sitewide.
15	*
16	* This file may be updated more in future version of the Boilerplate; however, this is the
17	* general skeleton and outline for how the file should work.
18	*
19	* For more information, see the following discussion:
20	* https://github.com/tommcfarlin/WordPress-Plugin-Boilerplate/pull/123#issuecomment-28541913
21	*
22	* @link www.faboba.com
23	* @since 1.0.0
24	*
25	* @package Falang
26	*/
27
28	// If uninstall not called from WordPress, then exit.
29	if (!defined('WP_UNINSTALL_PLUGIN')) {
30	exit;
31	}
32
33	/**
34	* Manages Falang uninstallation
35	* The goal is to remove ALL Falang related data in db if set to true
36	*
37	* @since 1.0
38	*/
39	class Falang_Uninstall
40	{
41
42	/**
43	* Constructor: manages uninstall for multisite
44	*
45	* @since 0.5
46	*/
47	public function __construct()
48	{
49	$this->uninstall();
50	}
51
52	/**
53	* Removes ALL plugin data
54	* only when the relevant option is active
55	*
56	* @since 0.5
57	*/
58	public function uninstall()
59	{
60	global $wpdb;
61
62	$delete_trans = $this->get_option('delete_trans_on_uninstall', false);
63
64	if (!$delete_trans) {
65	return;
66	}
67
68	// Need to register the taxonomies
69	$falang_taxonomies = array('language', 'term_language');
70	foreach ($falang_taxonomies as $taxonomy) {
71	register_taxonomy($taxonomy, null, array('label' => false,
72	'public' => false,
73	'query_var' => false,
74	'rewrite' => false
75	));
76	}
77
78	$languages = get_terms('language', array('hide_empty' => false));
79
80	// Delete the strings translations 1.2+
81	register_post_type('falang_mo', array('rewrite' => false, 'query_var' => false));
82	$ids = get_posts(
83	array(
84	'post_type' => 'falang_mo',
85	'post_status' => 'any',
86	'numberposts' => -1,
87	'nopaging' => true,
88	'fields' => 'ids',
89	)
90	);
91	foreach ($ids as $id) {
92	wp_delete_post($id, true);
93	}
94
95	foreach ($languages as $language) {
96	//local is in description
97	$description = maybe_unserialize($language->description);
98	foreach ($description as $prop => $value) {
99	$language->$prop = $value;
100	}
101
102	//check $prefix length can be only 2 caracteres
103	if (strlen($language->locale) < 2) {
104	continue;
105	}
106
107	//see create_prefix from Falang_Core
108	$prefix = '_' . $language->locale . '_';
109
110	//delete post meta
111	$wpdb->query("DELETE FROM {$wpdb->postmeta} WHERE meta_key like ( '" . $prefix . "%')"); // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
112
113	//delete post locale
114	$wpdb->query("DELETE FROM {$wpdb->postmeta} WHERE meta_key = '_locale' AND meta_value = '" . $prefix . "%'"); // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
115
116	//delete termmeta
117	// Do nothing if the termmeta table does not exists
118	if (count($wpdb->get_results("SHOW TABLES LIKE '$wpdb->termmeta'"))) {
119	$wpdb->query("DELETE FROM {$wpdb->termmeta} WHERE meta_key like ( '" . $prefix . "%')"); // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
120
121	}
122	}
123
124	// Delete all what is related to languages and translations
125	foreach (get_terms($falang_taxonomies, array('hide_empty' => false)) as $term) {
126	$term_ids[] = (int)$term->term_id;
127	$tt_ids[] = (int)$term->term_taxonomy_id;
128	}
129
130	if (!empty($term_ids)) {
131	$term_ids = array_unique($term_ids);
132	$wpdb->query("DELETE FROM {$wpdb->terms} WHERE term_id IN ( " . implode(',', $term_ids) . ' )'); // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
133	$wpdb->query("DELETE FROM {$wpdb->term_taxonomy} WHERE term_id IN ( " . implode(',', $term_ids) . ' )'); // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
134	}
135
136	if (!empty($tt_ids)) {
137	$tt_ids = array_unique($tt_ids);
138	$wpdb->query("DELETE FROM {$wpdb->term_relationships} WHERE term_taxonomy_id IN ( " . implode(',', $tt_ids) . ' )'); // PHPCS:ignore WordPress.DB.PreparedSQL.NotPrepared
139	}
140
141	// Delete options
142	delete_option('falang');
143	delete_option('widget_falang'); // Automatically created by WP
144	delete_option('falang_wpml_strings'); // Strings registered with icl_register_string
145	delete_option('falang_dismissed_notices');//delete dismissed notices options
146
147
148	}
149
150	/**
151	* Get option
152	*
153	* @param string $option_name . Option name
154	* @param mixed $default . Default value if option does not exist
155	* @return mixed
156	*
157	* @from 1.4.7
158	*/
159	public function get_option($option_name, $default = false)
160	{
161	$options = get_option('falang');
162	if (isset($options[$option_name])) {
163
164	return $options[$option_name];
165
166	}
167
168	return $default;
169	}
170
171	/**
172	* Get prefix for translation meta keys
173	*
174	* @from 1.0
175	*
176	* @param string $language_locale
177	* @return string
178	*/
179	public function get_prefix($locale)
180	{
181
182	return '_' . $locale . '_';
183
184	}
185	}
186
187	new Falang_Uninstall();
188