polylang / include / base.php

base.php in Polylang 1.7.3, at include/base.php

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1	<?php
2
3	/*
4	* base class for both admin and frontend
5	*
6	* @since 1.2
7	*/
8	abstract class PLL_Base {
9	public $links_model, $model, $options;
10
11	/*
12	* constructor
13	*
14	* @since 1.2
15	*
16	* @param object $links_model
17	*/
18	public function __construct(&$links_model) {
19	$this->links_model = &$links_model;
20	$this->model = &$links_model->model;
21	$this->options = &$this->model->options;
22
23	add_action('widgets_init', array(&$this, 'widgets_init'));
24
25	// user defined strings translations
26	add_action('pll_language_defined', array(&$this, 'load_strings_translations'), 5);
27
28	// switch_to_blog
29	add_action('switch_blog', array(&$this, 'switch_blog'), 10, 2);
30	}
31
32	/*
33	* registers our widgets
34	*
35	* @since 0.1
36	*/
37	public function widgets_init() {
38	register_widget('PLL_Widget_Languages');
39
40	// overwrites the calendar widget to filter posts by language
41	if (!defined('PLL_WIDGET_CALENDAR') \|\| PLL_WIDGET_CALENDAR) {
42	unregister_widget('WP_Widget_Calendar');
43	register_widget('PLL_Widget_Calendar');
44	}
45
46	// overwrites the recent posts and recent comments widget to use a language dependant cache key
47	// useful only if using a cache plugin
48	if (defined('WP_CACHE') && WP_CACHE) {
49	if (!defined('PLL_WIDGET_RECENT_POSTS') \|\| PLL_WIDGET_RECENT_POSTS) {
50	unregister_widget('WP_Widget_Recent_Posts');
51	register_widget('PLL_Widget_Recent_Posts');
52	}
53
54	if (!defined('PLL_WIDGET_RECENT_COMMENTS') \|\| PLL_WIDGET_RECENT_COMMENTS) {
55	unregister_widget('WP_Widget_Recent_Comments');
56	register_widget('PLL_Widget_Recent_Comments');
57	}
58	}
59	}
60
61	/*
62	* loads user defined strings translations
63	*
64	* @since 1.2
65	*/
66	public function load_strings_translations() {
67	$mo = new PLL_MO();
68	$mo->import_from_db($this->model->get_language(get_locale()));
69	$GLOBALS['l10n']['pll_string'] = &$mo;
70	}
71
72	/*
73	* resets some variables when switching blog
74	* applies only if Polylang is active on the new blog
75	*
76	* @since 1.5.1
77	*
78	* @return bool not used by WP but by child class
79	*/
80	public function switch_blog($new_blog, $old_blog) {
81	$plugins = ($sitewide_plugins = get_site_option('active_sitewide_plugins')) && is_array($sitewide_plugins) ? array_keys($sitewide_plugins) : array();
82	$plugins = array_merge($plugins, get_option('active_plugins', array()));
83
84	// 2nd test needed when Polylang is not networked activated
85	// 3rd test needed when Polylang is networked activated and a new site is created
86	if ($new_blog != $old_blog && in_array(POLYLANG_BASENAME, $plugins) && get_option('polylang')) {
87	$this->options = get_option('polylang'); // needed for menus
88	$this->links_model = $this->model->get_links_model();
89	return true;
90	}
91	return false;
92	}
93
94	/*
95	* some backward compatibility with Polylang < 1.2
96	* allows for example to call $polylang->get_languages_list() instead of $polylang->model->get_languages_list()
97	* this works but should be slower than the direct call, thus an error is triggered in debug mode
98	*
99	* @since 1.2
100	*
101	* @param string $func function name
102	* @param array $args function arguments
103	*/
104	public function __call($func, $args) {
105	foreach ($this as $prop => &$obj)
106	if (is_object($obj) && method_exists($obj, $func)) {
107	if (WP_DEBUG) {
108	$debug = debug_backtrace();
109	trigger_error(sprintf(
110	'%1$s was called incorrectly in %3$s on line %4$s: the call to $polylang->%1$s() has been deprecated in Polylang 1.2, use $polylang->%2$s->%1$s() instead.' . "\nError handler",
111	$func, $prop, $debug[1]['file'], $debug[1]['line']
112	));
113	}
114	return call_user_func_array(array($obj, $func), $args);
115	}
116
117	$debug = debug_backtrace();
118	trigger_error(sprintf('Call to undefined function $polylang->%1$s() in %2$s on line %3$s' . "\nError handler", $func, $debug[0]['file'], $debug[0]['line']), E_USER_ERROR);
119	}
120	}
121