polylang / include / base.php

base.php in Polylang 2.1.1, 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	$GLOBALS['l10n_unloaded']['pll_string'] = true; // Short-circuit _load_textdomain_just_in_time() for 'pll_string' domain in WP 4.6+
24
25	add_action( 'widgets_init', array( $this, 'widgets_init' ) );
26
27	// User defined strings translations
28	add_action( 'pll_language_defined', array( $this, 'load_strings_translations' ), 5 );
29
30	// Switch_to_blog
31	add_action( 'switch_blog', array( $this, 'switch_blog' ), 10, 2 );
32	}
33
34	/**
35	* Registers our widgets
36	*
37	* @since 0.1
38	*/
39	public function widgets_init() {
40	register_widget( 'PLL_Widget_Languages' );
41
42	// Overwrites the calendar widget to filter posts by language
43	if ( ! defined( 'PLL_WIDGET_CALENDAR' ) \|\| PLL_WIDGET_CALENDAR ) {
44	unregister_widget( 'WP_Widget_Calendar' );
45	register_widget( 'PLL_Widget_Calendar' );
46	}
47	}
48
49	/**
50	* Loads user defined strings translations
51	*
52	* @since 1.2
53	*/
54	public function load_strings_translations() {
55	$mo = new PLL_MO();
56	$mo->import_from_db( $this->model->get_language( get_locale() ) );
57	$GLOBALS['l10n']['pll_string'] = &$mo;
58	}
59
60	/**
61	* Resets some variables when switching blog
62	* Applies only if Polylang is active on the new blog
63	*
64	* @since 1.5.1
65	*
66	* @return bool not used by WP but by child class
67	*/
68	public function switch_blog( $new_blog, $old_blog ) {
69	$plugins = ( $sitewide_plugins = get_site_option( 'active_sitewide_plugins' ) ) && is_array( $sitewide_plugins ) ? array_keys( $sitewide_plugins ) : array();
70	$plugins = array_merge( $plugins, get_option( 'active_plugins', array() ) );
71
72	// 2nd test needed when Polylang is not networked activated
73	// 3rd test needed when Polylang is networked activated and a new site is created
74	if ( $new_blog != $old_blog && in_array( POLYLANG_BASENAME, $plugins ) && get_option( 'polylang' ) ) {
75	$this->options = get_option( 'polylang' ); // Needed for menus
76	$this->links_model = $this->model->get_links_model();
77	return true;
78	}
79	return false;
80	}
81
82	/**
83	* Some backward compatibility with Polylang < 1.2
84	* Allows for example to call $polylang->get_languages_list() instead of $polylang->model->get_languages_list()
85	* This works but should be slower than the direct call, thus an error is triggered in debug mode
86	*
87	* @since 1.2
88	*
89	* @param string $func function name
90	* @param array $args function arguments
91	*/
92	public function __call( $func, $args ) {
93	foreach ( $this as $prop => &$obj ) {
94	if ( is_object( $obj ) && method_exists( $obj, $func ) ) {
95	if ( WP_DEBUG ) {
96	$debug = debug_backtrace();
97	$i = 1 + empty( $debug[1]['line'] ); // The file and line are in $debug[2] if the function was called using call_user_func
98	trigger_error( sprintf(
99	'%1$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 PLL()->%2$s->%1$s() instead.' . "\nError handler",
100	$func, $prop, $debug[ $i ]['file'], $debug[ $i ]['line']
101	) );
102	}
103	return call_user_func_array( array( $obj, $func ), $args );
104	}
105	}
106
107	$debug = debug_backtrace();
108	trigger_error( sprintf( 'Call to undefined function PLL()->%1$s() in %2$s on line %3$s' . "\nError handler", $func, $debug[0]['file'], $debug[0]['line'] ), E_USER_ERROR );
109	}
110	}
111