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<?php |
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/* |
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Plugin Name: Polylang |
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Plugin URI: http://polylang.wordpress.com/ |
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Version: 1.1.6 |
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Author: Frédéric Demarle |
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Description: Adds multilingual capability to WordPress |
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Text Domain: polylang |
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Domain Path: /languages |
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*/ |
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|
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/* |
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* Copyright 2011-2013 F. Demarle |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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* MA 02110-1301, USA. |
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* |
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*/ |
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|
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define('POLYLANG_VERSION', '1.1.6'); |
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define('PLL_MIN_WP_VERSION', '3.1'); |
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|
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define('POLYLANG_DIR', dirname(__FILE__)); // our directory |
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define('PLL_INC', POLYLANG_DIR.'/include'); |
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|
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if (!defined('PLL_LOCAL_DIR')) |
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define('PLL_LOCAL_DIR', WP_CONTENT_DIR.'/polylang'); // default directory to store user data such as custom flags |
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|
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if (file_exists(PLL_LOCAL_DIR.'/pll-config.php')) |
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include_once(PLL_LOCAL_DIR.'/pll-config.php'); // includes local config file if exists |
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|
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define('POLYLANG_URL', plugins_url('/'.basename(POLYLANG_DIR))); // our url. Don't use WP_PLUGIN_URL http://wordpress.org/support/topic/ssl-doesnt-work-properly |
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|
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if (!defined('PLL_LOCAL_URL')) |
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define('PLL_LOCAL_URL', content_url('/polylang')); // default url to access user data such as custom flags |
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|
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if (!defined('PLL_COOKIE')) |
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define('PLL_COOKIE', 'pll_language'); // cookie name. no cookie will be used if set to false |
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|
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if (!defined('PLL_SEARCH_FORM_JS') && !version_compare($GLOBALS['wp_version'], '3.6', '<')) |
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define('PLL_SEARCH_FORM_JS', false); // the search form js is no more needed in WP 3.6+ except if the search form is hardcoded elsewhere than in searchform.php |
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|
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require_once(PLL_INC.'/base.php'); |
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|
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// controls the plugin, deals with activation, deactivation, upgrades, initialization as well as rewrite rules |
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class Polylang extends Polylang_Base { |
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|
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function __construct() { |
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parent::__construct(); |
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global $polylang; // globalize the variable to access it in the API |
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|
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// manages plugin activation and deactivation |
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register_activation_hook( __FILE__, array(&$this, 'activate')); |
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register_deactivation_hook( __FILE__, array(&$this, 'deactivate')); |
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|
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// stopping here if we upgraded from a too old version |
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if ($this->options && version_compare($this->options['version'], '0.8', '<')) { |
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add_action('all_admin_notices', array(&$this, 'admin_notices')); |
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return; |
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} |
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|
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// stopping here if we are going to deactivate the plugin (avoids breaking rewrite rules) |
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if (isset($_GET['action'], $_GET['plugin']) && $_GET['action'] == 'deactivate' && $_GET['plugin'] == 'polylang/polylang.php') |
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return; |
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|
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// blog creation on multisite |
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add_action('wpmu_new_blog', array(&$this, 'wpmu_new_blog')); |
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|
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// manages plugin upgrade |
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add_action('admin_init', array(&$this, 'admin_init')); |
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|
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// plugin and widget initialization |
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add_action('setup_theme', array(&$this, 'init'), 1); |
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add_action('widgets_init', array(&$this, 'widgets_init')); |
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add_action('wp_loaded', array(&$this, 'prepare_rewrite_rules'), 5); // after Polylang_base::add_post_types_taxonomies |
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|
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// separate admin and frontend |
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if (is_admin() && isset($_GET['page']) && $_GET['page'] == 'mlang') { |
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require_once(PLL_INC.'/admin-base.php'); |
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require_once(PLL_INC.'/admin.php'); |
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$polylang = new Polylang_Admin(); |
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} |
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|
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elseif ($this->is_admin) { |
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require_once(PLL_INC.'/admin-base.php'); |
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require_once(PLL_INC.'/admin-filters.php'); |
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$polylang = new Polylang_Admin_Filters(); |
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} |
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|
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else { |
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require_once(PLL_INC.'/core.php'); |
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$polylang = new Polylang_Core(); |
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|
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// auto translate posts and terms ids in term |
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if (!defined('PLL_AUTO_TRANSLATE') || PLL_AUTO_TRANSLATE) |
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require_once(PLL_INC.'/auto-translate.php'); |
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} |
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|
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// loads the API |
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require_once(PLL_INC.'/api.php'); |
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|
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// nav menus |
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require_once(PLL_INC.'/nav-menu.php'); |
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|
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// WPML API + wpml-config.xml |
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if (!defined('PLL_WPML_COMPAT') || PLL_WPML_COMPAT) |
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require_once(PLL_INC.'/wpml-compat.php'); |
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|
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// extra code for compatibility with some plugins |
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if (!defined('PLL_PLUGINS_COMPAT') || PLL_PLUGINS_COMPAT) |
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require_once(PLL_INC.'/plugins-compat.php'); |
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} |
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|
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// plugin activation for multisite |
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function activate() { |
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global $wp_version, $wpdb; |
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load_plugin_textdomain('polylang', false, basename(POLYLANG_DIR).'/languages'); // plugin i18n |
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|
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if (version_compare($wp_version, PLL_MIN_WP_VERSION , '<')) |
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die (sprintf('<p style = "font-family: sans-serif; font-size: 12px; color: #333; margin: -5px">%s</p>', |
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sprintf(__('You are using WordPress %s. Polylang requires at least WordPress %s.', 'polylang'), |
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esc_html($wp_version), |
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PLL_MIN_WP_VERSION |
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) |
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)); |
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|
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// check if it is a network activation - if so, run the activation function for each blog |
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if (is_multisite() && isset($_GET['networkwide']) && ($_GET['networkwide'] == 1)) { |
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foreach ($wpdb->get_col("SELECT blog_id FROM $wpdb->blogs") as $blog_id) { |
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switch_to_blog($blog_id); |
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$this->_activate(); |
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} |
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restore_current_blog(); |
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} |
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else |
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$this->_activate(); |
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} |
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|
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// plugin activation |
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function _activate() { |
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// create the termmeta table - not provided by WP by default - if it does not already exists |
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// uses exactly the same model as other meta tables to be able to use access functions provided by WP |
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global $wpdb; |
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$charset_collate = empty($wpdb->charset) ? '' : "DEFAULT CHARACTER SET $wpdb->charset"; |
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$charset_collate .= empty($wpdb->collate) ? '' : " COLLATE $wpdb->collate"; |
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$table = $wpdb->prefix . 'termmeta'; |
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|
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$r = $wpdb->query(" |
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CREATE TABLE IF NOT EXISTS $table ( |
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meta_id bigint(20) unsigned NOT NULL auto_increment, |
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term_id bigint(20) unsigned NOT NULL default '0', |
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meta_key varchar(255) default NULL, |
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meta_value longtext, |
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PRIMARY KEY (meta_id), |
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KEY term_id (term_id), |
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KEY meta_key (meta_key) |
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) $charset_collate;"); |
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|
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if ($r === false) |
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die (sprintf( |
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'<p style = "font-family: sans-serif; font-size: 12px; color: #333; margin: -5px">%s</p>', |
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__('For some reasons, Polylang could not create a table in your database.', 'polylang') |
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)); |
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|
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// codex tells to use the init action to call register_taxonomy but I need it now for my rewrite rules |
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register_taxonomy('language', null , array('label' => false, 'query_var'=>'lang')); |
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|
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// defines default values for options in case this is the first installation |
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if (!get_option('polylang')) { |
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$options['browser'] = 1; // default language for the front page is set by browser preference |
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$options['rewrite'] = 1; // remove /language/ in permalinks (was the opposite before 0.7.2) |
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$options['hide_default'] = 0; // do not remove URL language information for default language |
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$options['force_lang'] = 0; // do not add URL language information when useless |
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$options['redirect_lang'] = 0; // do not redirect the language page to the homepage |
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$options['media_support'] = 1; // support languages and translation for media by default |
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$options['sync'] = array_keys($this->list_metas_to_sync()); // synchronisation is enabled by default |
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$options['post_types'] = array_values(get_post_types(array('_builtin' => false, 'show_ui => true'))); |
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$options['taxonomies'] = array_values(get_taxonomies(array('_builtin' => false, 'show_ui => true'))); |
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$options['version'] = POLYLANG_VERSION; |
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|
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update_option('polylang', $options); |
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} |
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|
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// add our rewrite rules |
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$this->add_post_types_taxonomies(); |
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$this->prepare_rewrite_rules(); |
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flush_rewrite_rules(); |
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} |
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|
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// plugin deactivation for multisite |
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function deactivate() { |
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global $wpdb; |
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|
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// check if it is a network deactivation - if so, run the deactivation function for each blog |
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if (is_multisite() && isset($_GET['networkwide']) && ($_GET['networkwide'] == 1)) { |
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foreach ($wpdb->get_col("SELECT blog_id FROM $wpdb->blogs") as $blog_id) { |
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switch_to_blog($blog_id); |
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$this->_deactivate(); |
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} |
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restore_current_blog(); |
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} |
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else |
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$this->_deactivate(); |
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} |
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|
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// plugin deactivation |
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function _deactivate() { |
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flush_rewrite_rules(); |
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} |
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|
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// blog creation on multisite |
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function wpmu_new_blog($blog_id) { |
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switch_to_blog($blog_id); |
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$r = $this->_activate(); |
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restore_current_blog(); |
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} |
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|
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// displays a notice when ugrading from a too old version |
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function admin_notices() { |
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load_plugin_textdomain('polylang', false, basename(POLYLANG_DIR).'/languages'); |
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printf( |
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'<div class="error"><p>%s</p><p>%s</p></div>', |
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__('Polylang has been deactivated because you upgraded from a too old version.', 'polylang'), |
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sprintf( |
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__('Please upgrade first to %s before ugrading to %s.', 'polylang'), |
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'<strong>0.9.8</strong>', |
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POLYLANG_VERSION |
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) |
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); |
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} |
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|
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// manage upgrade even when it is done manually |
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function admin_init() { |
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|
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if (version_compare($this->options['version'], POLYLANG_VERSION, '<')) { |
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|
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if (version_compare($this->options['version'], '0.9', '<')) |
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$this->options['sync'] = defined('PLL_SYNC') && !PLL_SYNC ? 0 : 1; // the option replaces PLL_SYNC in 0.9 |
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|
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if (version_compare($this->options['version'], '1.0', '<')) { |
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// the option replaces PLL_MEDIA_SUPPORT in 1.0 |
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$this->options['media_support'] = defined('PLL_MEDIA_SUPPORT') && !PLL_MEDIA_SUPPORT ? 0 : 1; |
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|
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// split the synchronization options in 1.0 |
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$this->options['sync'] = empty($this->options['sync']) ? array() : array_keys($this->list_metas_to_sync()); |
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|
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// set default values for post types and taxonomies to translate |
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$this->options['post_types'] = array_values(get_post_types(array('_builtin' => false, 'show_ui => true'))); |
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$this->options['taxonomies'] = array_values(get_taxonomies(array('_builtin' => false, 'show_ui => true'))); |
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|
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flush_rewrite_rules(); // rewrite rules have been modified in 1.0 |
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} |
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|
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if (version_compare($this->options['version'], '1.0.2', '<')) |
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// set the option again in case it was not in 1.0 |
| 268 |
if (!isset($this->options['media_support'])) |
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$this->options['media_support'] = defined('PLL_MEDIA_SUPPORT') && !PLL_MEDIA_SUPPORT ? 0 : 1; |
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|
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if (version_compare($this->options['version'], '1.1', '<')) { |
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// update strings register with icl_register_string |
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$strings = get_option('polylang_wpml_strings'); |
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if ($strings) { |
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foreach ($strings as $key => $string) |
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$strings[$key]['icl'] = 1; |
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update_option('polylang_wpml_strings', $strings); |
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} |
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|
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// move polylang_widgets options |
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if ($widgets = get_option('polylang_widgets')) { |
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$this->options['widgets'] = $widgets; |
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delete_option('polylang_widgets'); |
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} |
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|
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// update nav menus |
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if ($menu_lang = get_option('polylang_nav_menus')) { |
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|
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foreach ($menu_lang as $location => $arr) { |
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if (!in_array($location, array_keys(get_registered_nav_menus()))) |
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continue; |
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|
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$switch_options = array_slice($arr, -5, 5); |
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$translations = array_diff_key($arr, $switch_options); |
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$has_switcher = array_shift($switch_options); |
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|
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foreach ($this->get_languages_list() as $lang) { |
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$menu_locations[$location.(pll_default_language() == $lang->slug ? '' : '#' . $lang->slug)] = empty($translations[$lang->slug]) ? 0 : $translations[$lang->slug]; |
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|
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// create the menu items |
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if (!empty($has_switcher)) { |
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$menu_item_db_id = wp_update_nav_menu_item($translations[$lang->slug], 0, array( |
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'menu-item-title' => __('Language switcher', 'polylang'), |
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'menu-item-url' => '#pll_switcher', |
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'menu-item-status' => 'publish' |
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)); |
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|
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update_post_meta($menu_item_db_id, '_pll_menu_item', $switch_options); |
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} |
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} |
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} |
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|
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if (!empty($menu_locations)) |
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set_theme_mod('nav_menu_locations', $menu_locations); |
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|
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delete_option('polylang_nav_menus'); |
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} |
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} |
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|
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$this->options['version'] = POLYLANG_VERSION; |
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update_option('polylang', $this->options); |
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} |
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} |
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|
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// some initialization |
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function init() { |
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global $wpdb; |
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$wpdb->termmeta = $wpdb->prefix . 'termmeta'; // registers the termmeta table in wpdb |
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|
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if ($this->is_admin) |
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load_plugin_textdomain('polylang', false, basename(POLYLANG_DIR).'/languages'); // plugin i18n, only needed for backend |
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|
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// registers the language taxonomy |
| 334 |
// codex: use the init action to call this function |
| 335 |
// object types will be set later once all custom post types are registered |
| 336 |
register_taxonomy('language', null, array( |
| 337 |
'labels' => array( |
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'name' => __('Languages', 'polylang'), |
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'singular_name' => __('Language', 'polylang'), |
| 340 |
'all_items' => __('All languages', 'polylang'), |
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), |
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'public' => false, // avoid displaying the 'like post tags text box' in the quick edit |
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'query_var' => 'lang', |
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'update_count_callback' => '_update_post_term_count' |
| 345 |
)); |
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|
| 347 |
// optionaly removes 'language' in permalinks so that we get http://www.myblog/en/ instead of http://www.myblog/language/en/ |
| 348 |
// language information always in front of the uri ('with_front' => false) |
| 349 |
// the 3rd parameter structure has been modified in WP 3.4 |
| 350 |
add_permastruct('language', $this->options['rewrite'] ? '%language%' : 'language/%language%', |
| 351 |
version_compare($GLOBALS['wp_version'], '3.4' , '<') ? false : array('with_front' => false)); |
| 352 |
} |
| 353 |
|
| 354 |
// registers our widgets |
| 355 |
function widgets_init() { |
| 356 |
require_once(PLL_INC.'/widget.php'); |
| 357 |
register_widget('Polylang_Widget'); |
| 358 |
|
| 359 |
// overwrites the calendar widget to filter posts by language |
| 360 |
if (!defined('PLL_WIDGET_CALENDAR') || PLL_WIDGET_CALENDAR) { |
| 361 |
require_once(PLL_INC.'/calendar.php'); // loads this only now otherwise it breaks widgets not registered in a widgets_init hook |
| 362 |
unregister_widget('WP_Widget_Calendar'); |
| 363 |
register_widget('Polylang_Widget_Calendar'); |
| 364 |
} |
| 365 |
} |
| 366 |
|
| 367 |
// complete our taxonomy and add rewrite rules filters once custom post types and taxonomies are registered (normally in init) |
| 368 |
function prepare_rewrite_rules() { |
| 369 |
foreach ($this->post_types as $post_type) |
| 370 |
register_taxonomy_for_object_type('language', $post_type); |
| 371 |
|
| 372 |
// don't modify the rules if there is no languages created yet |
| 373 |
if (!$this->get_languages_list()) |
| 374 |
return; |
| 375 |
|
| 376 |
$types = array_values(array_merge($this->post_types, $this->taxonomies)); // supported post types and taxonomies |
| 377 |
$types = array_merge(array('date', 'root', 'comments', 'search', 'author', 'language', 'post_format'), $types); |
| 378 |
$types = apply_filters('pll_rewrite_rules', $types); // allow plugins to add rewrite rules to the language filter |
| 379 |
|
| 380 |
foreach ($types as $type) |
| 381 |
add_filter($type . '_rewrite_rules', array(&$this, 'rewrite_rules')); |
| 382 |
|
| 383 |
add_filter('rewrite_rules_array', array(&$this, 'rewrite_rules')); // needed for post type archives |
| 384 |
} |
| 385 |
|
| 386 |
// the rewrite rules ! |
| 387 |
// always make sure the default language is at the end in case the language information is hidden for default language |
| 388 |
// thanks to brbrbr http://wordpress.org/support/topic/plugin-polylang-rewrite-rules-not-correct |
| 389 |
function rewrite_rules($rules) { |
| 390 |
$filter = str_replace('_rewrite_rules', '', current_filter()); |
| 391 |
|
| 392 |
// suppress the rules created by WordPress for our taxonomy |
| 393 |
if ($filter == 'language') |
| 394 |
return array(); |
| 395 |
|
| 396 |
global $wp_rewrite; |
| 397 |
$always_rewrite = in_array($filter, array('date', 'root', 'comments', 'author', 'post_format')); |
| 398 |
$newrules = array(); |
| 399 |
|
| 400 |
foreach ($this->get_languages_list() as $language) |
| 401 |
if (!$this->options['hide_default'] || $this->options['default_lang'] != $language->slug) |
| 402 |
$languages[] = $language->slug; |
| 403 |
|
| 404 |
if (isset($languages)) |
| 405 |
$slug = $wp_rewrite->root . ($this->options['rewrite'] ? '' : 'language/') . '('.implode('|', $languages).')/'; |
| 406 |
|
| 407 |
// for custom post type archives |
| 408 |
$cpts = array_intersect($this->post_types, get_post_types(array('_builtin' => false))); |
| 409 |
$cpts = $cpts ? '#post_type=('.implode('|', $cpts).')#' : ''; |
| 410 |
|
| 411 |
foreach ($rules as $key => $rule) { |
| 412 |
// we don't need the lang parameter for post types and taxonomies |
| 413 |
// moreover adding it would create issues for pages and taxonomies |
| 414 |
if ($this->options['force_lang'] && in_array($filter, array_merge($this->post_types, $this->taxonomies))) { |
| 415 |
if (isset($slug)) |
| 416 |
$newrules[$slug.str_replace($wp_rewrite->root, '', $key)] = str_replace( |
| 417 |
array('[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]'), |
| 418 |
array('[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]'), |
| 419 |
$rule |
| 420 |
); // hopefully it is sufficient! |
| 421 |
|
| 422 |
if ($this->options['hide_default']) { |
| 423 |
$newrules[$key] = $rules[$key]; |
| 424 |
// unset only if we hide the code for the default language as check_language_code_in_url will do its job in other cases |
| 425 |
unset($rules[$key]); |
| 426 |
} |
| 427 |
} |
| 428 |
|
| 429 |
// rewrite rules filtered by language |
| 430 |
elseif ($always_rewrite || ($cpts && preg_match($cpts, $rule) && !strpos($rule, 'name=')) || ($filter != 'rewrite_rules_array' && $this->options['force_lang'])) { |
| 431 |
if (isset($slug)) |
| 432 |
$newrules[$slug.str_replace($wp_rewrite->root, '', $key)] = str_replace( |
| 433 |
array('[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '[1]', '?'), |
| 434 |
array('[9]', '[8]', '[7]', '[6]', '[5]', '[4]', '[3]', '[2]', '?lang=$matches[1]&'), |
| 435 |
$rule |
| 436 |
); // should be enough! |
| 437 |
|
| 438 |
if ($this->options['hide_default']) |
| 439 |
$newrules[$key] = str_replace('?', '?lang='.$this->options['default_lang'].'&', $rule); |
| 440 |
|
| 441 |
unset($rules[$key]); // now useless |
| 442 |
} |
| 443 |
} |
| 444 |
|
| 445 |
// the home rewrite rule |
| 446 |
if ($filter == 'root' && isset($slug)) |
| 447 |
$newrules[$slug.'?$'] = $wp_rewrite->index.'?lang=$matches[1]'; |
| 448 |
|
| 449 |
return $newrules + $rules; |
| 450 |
} |
| 451 |
|
| 452 |
} // class Polylang |
| 453 |
|
| 454 |
new Polylang(); |
| 455 |
|
