polylang / install / install.php

install.php in Polylang 3.3, at install/install.php

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1	<?php
2	/**
3	* @package Polylang
4	*/
5
6	/**
7	* Polylang activation / de-activation class
8	*
9	* @since 1.7
10	*/
11	class PLL_Install extends PLL_Install_Base {
12
13	/**
14	* Checks min PHP and WP version, displays a notice if a requirement is not met.
15	*
16	* @since 2.6.7
17	*
18	* @return bool
19	*/
20	public function can_activate() {
21	global $wp_version;
22
23	if ( version_compare( PHP_VERSION, PLL_MIN_PHP_VERSION, '<' ) ) {
24	add_action( 'admin_notices', array( $this, 'php_version_notice' ) );
25	return false;
26	}
27
28	if ( version_compare( $wp_version, PLL_MIN_WP_VERSION, '<' ) ) {
29	add_action( 'admin_notices', array( $this, 'wp_version_notice' ) );
30	return false;
31	}
32
33	return true;
34	}
35
36	/**
37	* Displays a notice if PHP min version is not met.
38	*
39	* @since 2.6.7
40	*
41	* @return void
42	*/
43	public function php_version_notice() {
44	load_plugin_textdomain( 'polylang' ); // Plugin i18n.
45
46	printf(
47	'<div class="error"><p>%s</p></div>',
48	sprintf(
49	/* translators: 1: Plugin name 2: Current PHP version 3: Required PHP version */
50	esc_html__( '%1$s has deactivated itself because you are using an old version of PHP. You are using using PHP %2$s. %1$s requires PHP %3$s.', 'polylang' ),
51	esc_html( POLYLANG ),
52	PHP_VERSION,
53	esc_html( PLL_MIN_PHP_VERSION )
54	)
55	);
56	}
57
58	/**
59	* Displays a notice if WP min version is not met.
60	*
61	* @since 2.6.7
62	*
63	* @return void
64	*/
65	public function wp_version_notice() {
66	global $wp_version;
67
68	load_plugin_textdomain( 'polylang' ); // Plugin i18n.
69
70	printf(
71	'<div class="error"><p>%s</p></div>',
72	sprintf(
73	/* translators: 1: Plugin name 2: Current WordPress version 3: Required WordPress version */
74	esc_html__( '%1$s has deactivated itself because you are using an old version of WordPress. You are using using WordPress %2$s. %1$s requires at least WordPress %3$s.', 'polylang' ),
75	esc_html( POLYLANG ),
76	esc_html( $wp_version ),
77	esc_html( PLL_MIN_WP_VERSION )
78	)
79	);
80	}
81
82	/**
83	* Get default Polylang options.
84	*
85	* @since 1.8
86	*
87	* @return array
88	*/
89	public static function get_default_options() {
90	return array(
91	'browser' => 0, // Default language for the front page is not set by browser preference (was the opposite before 3.1).
92	'rewrite' => 1, // Remove /language/ in permalinks (was the opposite before 0.7.2).
93	'hide_default' => 1, // Remove URL language information for default language (was the opposite before 2.1.5).
94	'force_lang' => 1, // Add URL language information (was 0 before 1.7).
95	'redirect_lang' => 0, // Do not redirect the language page to the homepage.
96	'media_support' => 0, // Do not support languages and translation for media by default (was the opposite before 3.1).
97	'uninstall' => 0, // Do not remove data when uninstalling Polylang.
98	'sync' => array(), // Synchronisation is disabled by default (was the opposite before 1.2).
99	'post_types' => array(),
100	'taxonomies' => array(),
101	'domains' => array(),
102	'version' => POLYLANG_VERSION,
103	'first_activation' => time(),
104	);
105	}
106
107	/**
108	* Plugin activation
109	*
110	* @since 0.5
111	*
112	* @return void
113	*/
114	protected function _activate() {
115	if ( $options = get_option( 'polylang' ) ) {
116	// Check if we will be able to upgrade
117	if ( version_compare( $options['version'], POLYLANG_VERSION, '<' ) ) {
118	$upgrade = new PLL_Upgrade( $options );
119	$upgrade->can_activate();
120	}
121	}
122	// Defines default values for options in case this is the first installation
123	else {
124	update_option( 'polylang', self::get_default_options() );
125	}
126
127	// Avoid 1 query on every pages if no wpml strings is registered
128	if ( ! get_option( 'polylang_wpml_strings' ) ) {
129	update_option( 'polylang_wpml_strings', array() );
130	}
131
132	// Don't use flush_rewrite_rules at network activation. See #32471
133	// Thanks to RavanH for the trick. See https://polylang.wordpress.com/2015/06/10/polylang-1-7-6-and-multisite/
134	// Rewrite rules are created at next page load :)
135	delete_option( 'rewrite_rules' );
136	}
137
138	/**
139	* Plugin deactivation
140	*
141	* @since 0.5
142	*
143	* @return void
144	*/
145	protected function _deactivate() {
146	delete_option( 'rewrite_rules' ); // Don't use flush_rewrite_rules at network activation. See #32471
147	}
148	}
149