polylang / install / install.php

install.php in Polylang 2.8, 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	public function can_activate() {
19	global $wp_version;
20
21	if ( version_compare( PHP_VERSION, PLL_MIN_PHP_VERSION, '<' ) ) {
22	add_action( 'admin_notices', array( $this, 'php_version_notice' ) );
23	return false;
24	}
25
26	if ( version_compare( $wp_version, PLL_MIN_WP_VERSION, '<' ) ) {
27	add_action( 'admin_notices', array( $this, 'wp_version_notice' ) );
28	return false;
29	}
30
31	return true;
32	}
33
34	/**
35	* Displays a notice if PHP min version is not met.
36	*
37	* @since 2.6.7
38	*/
39	public function php_version_notice() {
40	load_plugin_textdomain( 'polylang' ); // Plugin i18n.
41
42	printf(
43	'<div class="error"><p>%s</p></div>',
44	sprintf(
45	/* translators: 1: Plugin name 2: Current PHP version 3: Required PHP version */
46	esc_html__( '%1$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' ),
47	esc_html( POLYLANG ),
48	PHP_VERSION,
49	esc_html( PLL_MIN_PHP_VERSION )
50	)
51	);
52	}
53
54	/**
55	* Displays a notice if WP min version is not met.
56	*
57	* @since 2.6.7
58	*/
59	public function wp_version_notice() {
60	global $wp_version;
61
62	load_plugin_textdomain( 'polylang' ); // Plugin i18n.
63
64	printf(
65	'<div class="error"><p>%s</p></div>',
66	sprintf(
67	/* translators: 1: Plugin name 2: Current WordPress version 3: Required WordPress version */
68	esc_html__( '%1$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' ),
69	esc_html( POLYLANG ),
70	esc_html( $wp_version ),
71	esc_html( PLL_MIN_WP_VERSION )
72	)
73	);
74	}
75
76	/**
77	* Get default Polylang options
78	*
79	* @since 1.8
80	*
81	* return array
82	*/
83	public static function get_default_options() {
84	return array(
85	'browser' => 1, // Default language for the front page is set by browser preference
86	'rewrite' => 1, // Remove /language/ in permalinks ( was the opposite before 0.7.2 )
87	'hide_default' => 1, // Remove URL language information for default language ( was the opposite before 2.1.5 )
88	'force_lang' => 1, // Add URL language information ( was 0 before 1.7 )
89	'redirect_lang' => 0, // Do not redirect the language page to the homepage
90	'media_support' => 1, // Support languages and translation for media by default
91	'uninstall' => 0, // Do not remove data when uninstalling Polylang
92	'sync' => array(), // Synchronisation is disabled by default ( was the opposite before 1.2 )
93	'post_types' => array(),
94	'taxonomies' => array(),
95	'domains' => array(),
96	'version' => POLYLANG_VERSION,
97	'first_activation' => time(),
98	);
99	}
100
101	/**
102	* Plugin activation
103	*
104	* @since 0.5
105	*/
106	protected function _activate() {
107	if ( $options = get_option( 'polylang' ) ) {
108	// Check if we will be able to upgrade
109	if ( version_compare( $options['version'], POLYLANG_VERSION, '<' ) ) {
110	$upgrade = new PLL_Upgrade( $options );
111	$upgrade->can_activate();
112	}
113	}
114	// Defines default values for options in case this is the first installation
115	else {
116	update_option( 'polylang', self::get_default_options() );
117	}
118
119	// Avoid 1 query on every pages if no wpml strings is registered
120	if ( ! get_option( 'polylang_wpml_strings' ) ) {
121	update_option( 'polylang_wpml_strings', array() );
122	}
123
124	// Don't use flush_rewrite_rules at network activation. See #32471
125	// Thanks to RavanH for the trick. See https://polylang.wordpress.com/2015/06/10/polylang-1-7-6-and-multisite/
126	// Rewrite rules are created at next page load :)
127	delete_option( 'rewrite_rules' );
128	}
129
130	/**
131	* Plugin deactivation
132	*
133	* @since 0.5
134	*/
135	protected function _deactivate() {
136	delete_option( 'rewrite_rules' ); // Don't use flush_rewrite_rules at network activation. See #32471
137	}
138	}
139