polylang / install / install.php

install.php in Polylang 2.7.3, at install/install.php

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