| 1 |
<?php |
| 2 |
|
| 3 |
/* |
| 4 |
* setups the language and translations model based on WordPress taxonomies |
| 5 |
* |
| 6 |
* @since 1.2 |
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*/ |
| 8 |
class PLL_Model { |
| 9 |
public $options; |
| 10 |
private $languages; // used to cache the list of languages |
| 11 |
|
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/* |
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* constructor: registers custom taxonomies and setups filters and actions |
| 14 |
* |
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* @since 1.2 |
| 16 |
* |
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* @param array $options Polylang options |
| 18 |
*/ |
| 19 |
public function __construct(&$options) { |
| 20 |
$this->options = &$options; |
| 21 |
|
| 22 |
// register our taxonomies as soon as possible |
| 23 |
// this is early registration, not ready for rewrite rules as wp_rewrite will be setup later |
| 24 |
// FIXME should I supply an 'update_count_callback' for taxonomies other than 'language' (currently not needed by PLL)? |
| 25 |
foreach (array('language', 'term_language', 'post_translations', 'term_translations') as $tax) { |
| 26 |
register_taxonomy($tax, |
| 27 |
false !== strpos($tax, 'term_') ? 'term' : null , |
| 28 |
array('label' => false, 'public' => false, 'query_var' => false, 'rewrite' => false, '_pll' => true) |
| 29 |
); |
| 30 |
} |
| 31 |
|
| 32 |
add_filter('get_terms', array(&$this, '_prime_terms_cache'), 10, 2); |
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add_filter('wp_get_object_terms', array(&$this, 'wp_get_object_terms'), 10, 3); |
| 34 |
|
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// we need to clean languages cache when editing a language, |
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// when editing page of front or when modifying the permalink structure |
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add_action('edited_term_taxonomy', array(&$this, 'clean_languages_cache'), 10, 2); |
| 38 |
add_action('update_option_page_on_front', array(&$this, 'clean_languages_cache')); |
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add_action('update_option_permalink_structure', array(&$this, 'clean_languages_cache')); |
| 40 |
|
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// registers completely the language taxonomy |
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add_action('setup_theme', array(&$this, 'register_taxonomy'), 1); |
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|
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// setups post types to translate |
| 45 |
add_action('registered_post_type', array(&$this, 'registered_post_type')); |
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|
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// just in case someone would like to display the language description ;-) |
| 48 |
add_filter('language_description', create_function('$v', "return '';")); |
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|
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// adds cache domain when querying terms |
| 51 |
add_filter('get_terms_args', array(&$this, 'get_terms_args')); |
| 52 |
} |
| 53 |
|
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/* |
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* cache language and translations when terms are queried by get_terms |
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* |
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* @since 1.2 |
| 58 |
* |
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* @param array $terms queried terms |
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* @param array $taxonomies queried taxonomies |
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* @return array unmodified $terms |
| 62 |
*/ |
| 63 |
public function _prime_terms_cache($terms, $taxonomies) { |
| 64 |
if ($this->is_translated_taxonomy($taxonomies)) { |
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foreach ($terms as $term) { |
| 66 |
$term_ids[] = is_object($term) ? $term->term_id : $term; |
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} |
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} |
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|
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if (!empty($term_ids)) |
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update_object_term_cache(array_unique($term_ids), 'term'); // adds language and translation of terms to cache |
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return $terms; |
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} |
| 74 |
|
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/* |
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* when terms are found for posts, add their language and translations to cache |
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* |
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* @since 1.2 |
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* |
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* @param array $terms terms found |
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* @param array $object_ids not used |
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* @param array $taxonomies terms taxonomies |
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* @return array unmodified $terms |
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*/ |
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// FIXME is that useful? or even desirable? |
| 86 |
public function wp_get_object_terms($terms, $object_ids, $taxonomies) { |
| 87 |
$taxonomies = explode("', '", trim($taxonomies, "'")); |
| 88 |
if (!in_array('term_translations', $taxonomies)) |
| 89 |
$this->_prime_terms_cache($terms, $taxonomies); |
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return $terms; |
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} |
| 92 |
|
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/* |
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* wrap wp_get_object_terms to cache it and return only one object |
| 95 |
* inspired by the function get_the_terms |
| 96 |
* |
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* @since 1.2 |
| 98 |
* |
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* @param int $object_id post_id or term_id |
| 100 |
* @param string $taxonomy Polylang taxonomy depending if we are looking for a post (or term) language (or translation) |
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* @return bool|object the term associated to the object in the requested taxonomy if exists, false otherwise |
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*/ |
| 103 |
protected function get_object_term($object_id, $taxonomy) { |
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$term = get_object_term_cache($object_id, $taxonomy); |
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|
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if ( false === $term ) { |
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// query language and translations at the same time |
| 108 |
$taxonomies = (false !== strpos($taxonomy, 'term_')) ? |
| 109 |
array('term_language', 'term_translations') : |
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array('language', 'post_translations'); |
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|
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foreach (wp_get_object_terms($object_id, $taxonomies) as $t) { |
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wp_cache_add($object_id, array($t), $t->taxonomy . '_relationships'); // store it the way WP wants it |
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if ($t->taxonomy == $taxonomy) |
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$term = $t; |
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} |
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} |
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else { |
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$term = reset($term); |
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} |
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|
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return empty($term) ? false : $term; |
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} |
| 124 |
|
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/* |
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* returns the list of available languages |
| 127 |
* caches the list in a db transient (except flags) |
| 128 |
* caches the list (with flags) in the private property $languages |
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* |
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* list of parameters accepted in $args: |
| 131 |
* |
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* hide_empty => hides languages with no posts if set to true (defaults to false) |
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* fields => return only that field if set (see PLL_Language for a list of fields) |
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* |
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* @since 0.1 |
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* |
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* @param array $args |
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* @return array|string|int list of PLL_Language objects or PLL_Language object properties |
| 139 |
*/ |
| 140 |
public function get_languages_list($args = array()) { |
| 141 |
if (empty($this->languages)) { |
| 142 |
if (false === ($languages = get_transient('pll_languages_list'))) { |
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$languages = get_terms('language', array('hide_empty' => false, 'orderby'=> 'term_group')); |
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$languages = empty($languages) || is_wp_error($languages) ? array() : $languages; |
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|
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$term_languages = get_terms('term_language', array('hide_empty' => false)); |
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$term_languages = empty($term_languages) || is_wp_error($term_languages) ? |
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array() : array_combine(wp_list_pluck($term_languages, 'name'), $term_languages); |
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|
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if (!empty($languages) && !empty($term_languages)) { |
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array_walk($languages, create_function('&$v, $k, $term_languages', '$v = new PLL_Language($v, $term_languages[$v->name]);'), $term_languages); |
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} |
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else { |
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$languages = array(); // in case something went wrong |
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} |
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} |
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|
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$this->languages = $languages; |
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|
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// need to wait for $wp_rewrite availibility to set homepage urls |
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did_action('setup_theme') ? $this->_languages_list() : add_action('setup_theme', array(&$this, '_languages_list')); |
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} |
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|
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$args = wp_parse_args($args, array('hide_empty' => false)); |
| 165 |
extract($args); |
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|
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// remove empty languages if requested |
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$languages = array_filter($this->languages, create_function('$v', sprintf('return $v->count || !%d;', $hide_empty))); |
| 169 |
|
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return empty($fields) ? $languages : wp_list_pluck($languages, $fields); |
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} |
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|
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/* |
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* fills home urls and flags in language list and set transient in db |
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* delayed to be sure we have access to $wp_rewrite for home urls |
| 176 |
* home urls are not cached in db if PLL_CACHE_HOME_URL is set to false |
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* |
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* @since 1.4 |
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*/ |
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public function _languages_list() { |
| 181 |
if (false === get_transient('pll_languages_list')) { |
| 182 |
if (!defined('PLL_CACHE_HOME_URL') || PLL_CACHE_HOME_URL) { |
| 183 |
foreach ($this->languages as $language) |
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$language->set_home_url(); |
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} |
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set_transient('pll_languages_list', $this->languages); |
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} |
| 188 |
|
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foreach ($this->languages as $language) { |
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if (defined('PLL_CACHE_HOME_URL') && !PLL_CACHE_HOME_URL) |
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$language->set_home_url(); |
| 192 |
|
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// add flags (not in db cache as they may be different on frontend and admin) |
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$language->set_flag(); |
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} |
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} |
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|
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/* |
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* cleans language cache |
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* can be called directly with no parameter |
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* called by the 'edited_term_taxonomy' filter with 2 parameters when count needs to be updated |
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* |
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* @since 1.2 |
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* |
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* @param int $term not used |
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* @param string $taxonomy taxonomy name |
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*/ |
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public function clean_languages_cache($term = 0, $taxonomy = null) { |
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if (empty($taxonomy->name) || 'language' == $taxonomy->name) { |
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delete_transient('pll_languages_list'); |
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$this->languages = array(); |
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} |
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} |
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|
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/* |
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* returns the language by its term_id, tl_term_id, slug or locale |
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* |
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* @since 0.1 |
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* |
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* @param int|string term_id, tl_term_id, slug or locale of the queried language |
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* @return object|bool PLL_Language object, false if no language found |
| 222 |
*/ |
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public function get_language($value) { |
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static $language; |
| 225 |
|
| 226 |
if (is_object($value)) |
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return $this->get_language($value->term_id); // will force cast to PLL_Language |
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|
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if (empty($language[$value])) { |
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foreach ($this->get_languages_list() as $lang) |
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$language[$lang->term_id] = $language[$lang->tl_term_id] = $language[$lang->slug] = $language[$lang->locale] = $lang; |
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} |
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|
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return empty($language[$value]) ? false : $language[$value]; |
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} |
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|
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/* |
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* saves translations for posts or terms |
| 239 |
* |
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* @since 0.5 |
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|
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* @param string $type either 'post' or 'term' |
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* @param int $id post id or term id |
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* @param array $translations: an associative array of translations with language code as key and translation id as value |
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*/ |
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public function save_translations($type, $id, $translations) { |
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if (($lang = call_user_func(array(&$this, 'get_'.$type.'_language'), $id)) && isset($translations) && is_array($translations)) { |
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// first unlink this object |
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foreach ($this->get_translations($type, $id) as $object_id) |
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$this->delete_translation($type, $object_id); |
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|
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$translations = array_merge(array($lang->slug => $id), $translations); // make sure this object is in tranlations |
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$translations = array_diff($translations, array(0)); // don't keep non translated languages |
| 254 |
|
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// don't create a translation group for untranslated posts as it is useless |
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// but we need one for terms to allow relationships remap when importing from a WXR file |
| 257 |
if ('term' == $type || count($translations) > 1) { |
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$terms = wp_get_object_terms($translations, $type . '_translations'); |
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$term = array_pop($terms); |
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|
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// create a new term if necessary |
| 262 |
empty($term) ? |
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wp_insert_term($group = uniqid('pll_'), $type . '_translations', array('description' => serialize($translations))) : |
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wp_update_term($group = (int) $term->term_id, $type . '_translations', array('description' => serialize($translations))); |
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|
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// link all translations to the new term |
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foreach($translations as $p) |
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wp_set_object_terms($p, $group, $type . '_translations'); |
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} |
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} |
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} |
| 272 |
|
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/* |
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* deletes a translation of a post or term |
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* |
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* @since 0.5 |
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* |
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* @param string $type either 'post' or 'term' |
| 279 |
* @param int $id post id or term id |
| 280 |
*/ |
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public function delete_translation($type, $id) { |
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$term = $this->get_object_term($id, $type . '_translations'); |
| 283 |
|
| 284 |
if (!empty($term)) { |
| 285 |
$translations = unserialize($term->description); |
| 286 |
|
| 287 |
if (is_array($translations)) { |
| 288 |
$slug = array_search($id, $translations); |
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unset($translations[$slug]); |
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|
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empty($translations) || 1 == count($translations) ? |
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wp_delete_term((int) $term->term_id, $type . '_translations') : |
| 293 |
wp_update_term((int) $term->term_id, $type . '_translations', array('description' => serialize($translations))); |
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|
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wp_set_object_terms($id, null, $type . '_translations'); |
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} |
| 297 |
} |
| 298 |
} |
| 299 |
|
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/* |
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* returns the id of the translation of a post or term |
| 302 |
* |
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* @since 0.5 |
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* |
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* @param string $type either 'post' or 'term' |
| 306 |
* @param int $id post id or term id |
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* @param object|string $lang object or slug |
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* @return bool|int post id or term id of the translation, flase if there is none |
| 309 |
*/ |
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public function get_translation($type, $id, $lang) { |
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if (!$lang = $this->get_language($lang)) |
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return false; |
| 313 |
|
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$translations = $this->get_translations($type, $id); |
| 315 |
|
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return isset($translations[$lang->slug]) ? (int) $translations[$lang->slug] : false; |
| 317 |
} |
| 318 |
|
| 319 |
/* |
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* returns an array of translations of a post or term |
| 321 |
* |
| 322 |
* @since 0.5 |
| 323 |
* |
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* @param string $type either 'post' or 'term' |
| 325 |
* @param int $id post id or term id |
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* @return array an associative array of translations with language code as key and translation id as value |
| 327 |
*/ |
| 328 |
public function get_translations($type, $id) { |
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$type = ($type == 'post' || $this->is_translated_post_type($type)) ? 'post' : (($type == 'term' || $this->is_translated_taxonomy($type)) ? 'term' : false); |
| 330 |
return $type && ($term = $this->get_object_term($id, $type . '_translations')) && !empty($term) ? unserialize($term->description) : array(); |
| 331 |
} |
| 332 |
|
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/* |
| 334 |
* store the post language in the database |
| 335 |
* |
| 336 |
* @since 0.6 |
| 337 |
* |
| 338 |
* @param int $post_id post id |
| 339 |
* @param int|string|object language (term_id or slug or object) |
| 340 |
*/ |
| 341 |
public function set_post_language($post_id, $lang) { |
| 342 |
wp_set_post_terms($post_id, $lang ? $this->get_language($lang)->slug : '', 'language' ); |
| 343 |
} |
| 344 |
|
| 345 |
/* |
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* returns the language of a post |
| 347 |
* |
| 348 |
* @since 0.1 |
| 349 |
* |
| 350 |
* @param int $post_id post id |
| 351 |
* @return bool|object PLL_Language object, false if no language is associated to that post |
| 352 |
*/ |
| 353 |
public function get_post_language($post_id) { |
| 354 |
$lang = $this->get_object_term($post_id, 'language' ); |
| 355 |
return ($lang) ? $this->get_language($lang) : false; |
| 356 |
} |
| 357 |
|
| 358 |
/* |
| 359 |
* among the post and its translations, returns the id of the post which is in $lang |
| 360 |
* |
| 361 |
* @since 0.1 |
| 362 |
* |
| 363 |
* @param int $post_id post id |
| 364 |
* @param int|string|object language (term_id or slug or object) |
| 365 |
* @return bool|int the translation post id if exists, otherwise the post id, false if the post has no language |
| 366 |
*/ |
| 367 |
public function get_post($post_id, $lang) { |
| 368 |
$post_lang = $this->get_post_language($post_id); // FIXME is this necessary? |
| 369 |
if (!$lang || !$post_lang) |
| 370 |
return false; |
| 371 |
|
| 372 |
$lang = $this->get_language($lang); |
| 373 |
return $post_lang->term_id == $lang->term_id ? $post_id : $this->get_translation('post', $post_id, $lang); |
| 374 |
} |
| 375 |
|
| 376 |
/* |
| 377 |
* stores the term language in the database |
| 378 |
* |
| 379 |
* @since 0.6 |
| 380 |
* |
| 381 |
* @param int $term_id term id |
| 382 |
* @param int|string|object language (term_id or slug or object) |
| 383 |
*/ |
| 384 |
public function set_term_language($term_id, $lang) { |
| 385 |
wp_set_object_terms($term_id, $lang ? $this->get_language($lang)->tl_term_id : '', 'term_language'); |
| 386 |
} |
| 387 |
|
| 388 |
/* |
| 389 |
* removes the term language in database |
| 390 |
* |
| 391 |
* @since 0.5 |
| 392 |
* |
| 393 |
* @param int $term_id term id |
| 394 |
*/ |
| 395 |
public function delete_term_language($term_id) { |
| 396 |
wp_delete_object_term_relationships($term_id, 'term_language'); |
| 397 |
} |
| 398 |
|
| 399 |
/* |
| 400 |
* returns the language of a term |
| 401 |
* |
| 402 |
* @since 0.1 |
| 403 |
* |
| 404 |
* @param int|string $value term id or term slug |
| 405 |
* @param string $taxonomy optional taxonomy needed when the term slug is passed as first parameter |
| 406 |
* @return bool|object PLL_Language object, false if no language is associated to that term |
| 407 |
*/ |
| 408 |
public function get_term_language($value, $taxonomy = '') { |
| 409 |
if (is_numeric($value)) |
| 410 |
$term_id = $value; |
| 411 |
|
| 412 |
// get_term_by still not cached in WP 3.5.1 but internally, the function is always called by term_id |
| 413 |
elseif (is_string($value) && $taxonomy) |
| 414 |
$term_id = get_term_by('slug', $value , $taxonomy)->term_id; |
| 415 |
|
| 416 |
$lang = $this->get_object_term($term_id, 'term_language'); |
| 417 |
|
| 418 |
// switch to PLL_Language |
| 419 |
return ($lang) ? $this->get_language($lang->term_id) : false; |
| 420 |
} |
| 421 |
|
| 422 |
/* |
| 423 |
* among the term and its translations, returns the id of the term which is in $lang |
| 424 |
* |
| 425 |
* @since 0.1 |
| 426 |
* |
| 427 |
* @param int $term_id term id |
| 428 |
* @param int|string|object language (term_id or slug or object) |
| 429 |
* @return bool|int the translation term id if exists, otherwise the term id, false if the term has no language |
| 430 |
*/ |
| 431 |
public function get_term($term_id, $lang) { |
| 432 |
$lg = $this->get_term_language($term_id); // FIXME is this necessary? |
| 433 |
if (!$lang || !$lg) |
| 434 |
return false; |
| 435 |
|
| 436 |
$lang = $this->get_language($lang); |
| 437 |
return $lg->term_id == $lang->term_id ? $term_id : $this->get_translation('term', $term_id, $lang); |
| 438 |
} |
| 439 |
|
| 440 |
/* |
| 441 |
* a join clause to add to sql queries when filtering by language is needed directly in query |
| 442 |
* |
| 443 |
* @since 1.2 |
| 444 |
* |
| 445 |
* @param string $type either 'post' or 'term' |
| 446 |
* @return string join clause |
| 447 |
*/ |
| 448 |
public function join_clause($type) { |
| 449 |
global $wpdb; |
| 450 |
return " INNER JOIN $wpdb->term_relationships AS pll_tr ON pll_tr.object_id = " . ('term' == $type ? "t.term_id" : "ID"); |
| 451 |
} |
| 452 |
|
| 453 |
/* |
| 454 |
* a where clause to add to sql queries when filtering by language is needed directly in query |
| 455 |
* |
| 456 |
* @since 1.2 |
| 457 |
* |
| 458 |
* @param object|array|string $lang a PLL_Language object or a comma separated list of languag slug or an array of language slugs |
| 459 |
* @param string $type either 'post' or 'term' |
| 460 |
* @return string where clause |
| 461 |
*/ |
| 462 |
public function where_clause($lang, $type) { |
| 463 |
global $wpdb; |
| 464 |
$tt_id = 'term' == $type ? 'tl_term_taxonomy_id' : 'term_taxonomy_id'; |
| 465 |
|
| 466 |
// $lang is an object |
| 467 |
// generally the case if the query is coming from Polylang |
| 468 |
if (is_object($lang)) |
| 469 |
return $wpdb->prepare(" AND pll_tr.term_taxonomy_id = %d", $lang->$tt_id); |
| 470 |
|
| 471 |
// $lang is a comma separated list of slugs (or an array of slugs) |
| 472 |
// generally the case is the query is coming from outside with 'lang' parameter |
| 473 |
$slugs = is_array($lang) ? $lang : explode(',', $lang); |
| 474 |
foreach ($slugs as $slug) |
| 475 |
$languages[] = (int) $this->get_language($slug)->$tt_id; |
| 476 |
|
| 477 |
return " AND pll_tr.term_taxonomy_id IN (" . implode(',', $languages) . ")"; |
| 478 |
} |
| 479 |
|
| 480 |
/* |
| 481 |
* adds terms clauses to get_terms to filter them by languages - used in both frontend and admin |
| 482 |
* |
| 483 |
* @since 1.2 |
| 484 |
* |
| 485 |
* @param array $clauses the list of sql clauses in terms query |
| 486 |
* @param object $lang PLL_Language object |
| 487 |
* @return array modifed list of clauses |
| 488 |
*/ |
| 489 |
public function terms_clauses($clauses, $lang) { |
| 490 |
if (!empty($lang)) { |
| 491 |
$clauses['join'] .= $this->join_clause('term'); |
| 492 |
$clauses['where'] .= $this->where_clause($lang, 'term'); |
| 493 |
} |
| 494 |
return $clauses; |
| 495 |
} |
| 496 |
|
| 497 |
/* |
| 498 |
* register the language taxonomy |
| 499 |
* |
| 500 |
* @since 1.2 |
| 501 |
*/ |
| 502 |
public function register_taxonomy() { |
| 503 |
// registers the language taxonomy |
| 504 |
register_taxonomy('language', $this->get_translated_post_types(), array( |
| 505 |
'labels' => array( |
| 506 |
'name' => __('Languages', 'polylang'), |
| 507 |
'singular_name' => __('Language', 'polylang'), |
| 508 |
'all_items' => __('All languages', 'polylang'), |
| 509 |
), |
| 510 |
'public' => false, // avoid displaying the 'like post tags text box' in the quick edit |
| 511 |
'query_var' => 'lang', |
| 512 |
'_pll' => true // polylang taxonomy |
| 513 |
)); |
| 514 |
} |
| 515 |
|
| 516 |
/* |
| 517 |
* returns post types that need to be translated |
| 518 |
* |
| 519 |
* @since 1.2 |
| 520 |
* |
| 521 |
* @param bool $filter true if we should return only valid registered post types |
| 522 |
* @return array post type names for which Polylang manages languages and translations |
| 523 |
*/ |
| 524 |
public function get_translated_post_types($filter = true) { |
| 525 |
static $post_types = array(); |
| 526 |
|
| 527 |
// the post types list is cached for better better performance |
| 528 |
// wait for 'after_setup_theme' to apply the cache to allow themes adding the filter in functions.php |
| 529 |
if (!$post_types || !did_action('after_setup_theme')) { |
| 530 |
$post_types = array('post' => 'post', 'page' => 'page'); |
| 531 |
|
| 532 |
if (!empty($this->options['media_support'])) |
| 533 |
$post_types['attachement'] = 'attachment'; |
| 534 |
|
| 535 |
if (is_array($this->options['post_types'])) |
| 536 |
$post_types = array_merge($post_types, $this->options['post_types']); |
| 537 |
|
| 538 |
$post_types = apply_filters('pll_get_post_types', $post_types , false); |
| 539 |
} |
| 540 |
|
| 541 |
return $filter ? array_intersect($post_types, get_post_types()) : $post_types; |
| 542 |
} |
| 543 |
|
| 544 |
/* |
| 545 |
* check if registered post type must be translated |
| 546 |
* |
| 547 |
* @since 1.2 |
| 548 |
* |
| 549 |
* @param string $post_type post type name |
| 550 |
*/ |
| 551 |
public function registered_post_type($post_type) { |
| 552 |
if ($this->is_translated_post_type($post_type)) { |
| 553 |
register_taxonomy_for_object_type('language', $post_type); |
| 554 |
register_taxonomy_for_object_type('post_translations', $post_type); |
| 555 |
} |
| 556 |
} |
| 557 |
|
| 558 |
/* |
| 559 |
* returns true if Polylang manages languages and translations for this post type |
| 560 |
* |
| 561 |
* @since 1.2 |
| 562 |
* |
| 563 |
* @param string|array $post_type post type name or array of post type names |
| 564 |
*/ |
| 565 |
public function is_translated_post_type($post_type) { |
| 566 |
$post_types = $this->get_translated_post_types(false); |
| 567 |
return (is_array($post_type) && array_intersect($post_type, $post_types) || in_array($post_type, $post_types)); |
| 568 |
} |
| 569 |
|
| 570 |
/* |
| 571 |
* return taxonomies that need to be translated |
| 572 |
* |
| 573 |
* @since 1.2 |
| 574 |
* |
| 575 |
* @param bool $filter true if we should return only valid registered taxonmies |
| 576 |
* @return array array of registered taxonomy names for which Polylang manages languages and translations |
| 577 |
*/ |
| 578 |
public function get_translated_taxonomies($filter = true) { |
| 579 |
static $taxonomies = array(); |
| 580 |
|
| 581 |
if (!$taxonomies || !did_action('after_setup_theme')) { |
| 582 |
$taxonomies = array('category' => 'category', 'post_tag' => 'post_tag'); |
| 583 |
|
| 584 |
if (is_array($this->options['taxonomies'])) |
| 585 |
$taxonomies = array_merge($taxonomies, $this->options['taxonomies']); |
| 586 |
|
| 587 |
$taxonomies = apply_filters('pll_get_taxonomies', $taxonomies, false); |
| 588 |
} |
| 589 |
|
| 590 |
return $filter ? array_intersect($taxonomies, get_taxonomies()) : $taxonomies; |
| 591 |
} |
| 592 |
|
| 593 |
/* |
| 594 |
* returns true if Polylang manages languages and translations for this post type |
| 595 |
* |
| 596 |
* @since 1.2 |
| 597 |
* |
| 598 |
* @param string|array $tax taxonomy name or array of taxonomy names |
| 599 |
*/ |
| 600 |
public function is_translated_taxonomy($tax) { |
| 601 |
$taxonomies = $this->get_translated_taxonomies(false); |
| 602 |
return (is_array($tax) && array_intersect($tax, $taxonomies) || in_array($tax, $taxonomies)); |
| 603 |
} |
| 604 |
|
| 605 |
/* |
| 606 |
* it is possible to have several terms with the same name in the same taxonomy (one per language) |
| 607 |
* but the native term_exists will return true even if only one exists |
| 608 |
* so here the function adds the language parameter |
| 609 |
* |
| 610 |
* @since 1.4 |
| 611 |
* |
| 612 |
* @param string $term_name the term name |
| 613 |
* @param string $taxonomy taxonomy name |
| 614 |
* @param int $parent parent term id |
| 615 |
* @param string|object $language the language slug or object |
| 616 |
* @return null|int the term_id of the found term |
| 617 |
*/ |
| 618 |
public function term_exists($term_name, $taxonomy, $parent, $language) { |
| 619 |
global $wpdb; |
| 620 |
|
| 621 |
$select = "SELECT t.term_id FROM $wpdb->terms AS t"; |
| 622 |
$join = " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id"; |
| 623 |
$join .= $this->join_clause('term'); |
| 624 |
$where = $wpdb->prepare(" WHERE tt.taxonomy = %s AND t.name = %s", $taxonomy, $term_name); |
| 625 |
$where .= $this->where_clause($this->get_language($language), 'term'); |
| 626 |
|
| 627 |
if ($parent > 0) |
| 628 |
$where .= $wpdb->prepare(" AND tt.parent = %d", $parent); |
| 629 |
|
| 630 |
return $wpdb->get_var($select . $join . $where); |
| 631 |
} |
| 632 |
|
| 633 |
/* |
| 634 |
* gets the number of posts per language in a date, author or post type archive |
| 635 |
* |
| 636 |
* @since 1.2 |
| 637 |
* |
| 638 |
* @param object lang |
| 639 |
* @param array $args WP_Query arguments (accepted: post_type, m, year, monthnum, day, author, author_name) |
| 640 |
* @return int |
| 641 |
*/ |
| 642 |
public function count_posts($lang, $args = array()) { |
| 643 |
global $wpdb; |
| 644 |
|
| 645 |
$q = wp_parse_args($args, array('post_type' => 'post')); |
| 646 |
|
| 647 |
$cache_key = md5(serialize($q)); |
| 648 |
$counts = wp_cache_get($cache_key, 'pll_count_posts'); |
| 649 |
|
| 650 |
if (false === $counts) { |
| 651 |
$select = "SELECT pll_tr.term_taxonomy_id, COUNT(*) AS num_posts FROM {$wpdb->posts} AS p"; |
| 652 |
$join = $this->join_clause('post'); |
| 653 |
$where = " WHERE post_status = 'publish'"; |
| 654 |
$where .= $wpdb->prepare(" AND p.post_type = %s", $q['post_type']); |
| 655 |
$where .= $this->where_clause($this->get_languages_list(), 'post'); |
| 656 |
$groupby = " GROUP BY pll_tr.term_taxonomy_id"; |
| 657 |
|
| 658 |
if (!empty($q['m'])) { |
| 659 |
$q['m'] = '' . preg_replace('|[^0-9]|', '', $q['m']); |
| 660 |
$where .= $wpdb->prepare(" AND YEAR(p.post_date) = %d", substr($q['m'], 0, 4)); |
| 661 |
if ( strlen($q['m']) > 5 ) |
| 662 |
$where .= $wpdb->prepare(" AND MONTH(p.post_date) = %d", substr($q['m'], 4, 2)); |
| 663 |
if ( strlen($q['m']) > 7 ) |
| 664 |
$where .= $wpdb->prepare(" AND DAYOFMONTH(p.post_date) = %d", substr($q['m'], 6, 2)); |
| 665 |
} |
| 666 |
|
| 667 |
if (!empty($q['year'])) |
| 668 |
$where .= $wpdb->prepare(" AND YEAR(p.post_date) = %d", $q['year']); |
| 669 |
|
| 670 |
if (!empty($q['monthnum'])) |
| 671 |
$where .= $wpdb->prepare(" AND MONTH(p.post_date) = %d", $q['monthnum']); |
| 672 |
|
| 673 |
if (!empty($q['day'])) |
| 674 |
$where .= $wpdb->prepare(" AND DAYOFMONTH(p.post_date) = %d", $q['day']); |
| 675 |
|
| 676 |
if (!empty($q['author_name'])) { |
| 677 |
$author = get_user_by('slug', sanitize_title_for_query($q['author_name'])); |
| 678 |
if ($author) |
| 679 |
$q['author'] = $author->ID; |
| 680 |
} |
| 681 |
|
| 682 |
if (!empty($q['author'])) |
| 683 |
$where .= $wpdb->prepare(" AND p.post_author = %d", $q['author']); |
| 684 |
|
| 685 |
if (!empty($q['post_format'])) { |
| 686 |
$join .= " INNER JOIN {$wpdb->term_relationships} AS tr ON tr.object_id = p.ID"; |
| 687 |
$join .= " INNER JOIN {$wpdb->term_taxonomy} AS tt ON tt.term_taxonomy_id = tr.term_taxonomy_id"; |
| 688 |
$join .= " INNER JOIN {$wpdb->terms} AS t ON t.term_id = tt.term_id"; |
| 689 |
$where .= $wpdb->prepare(" AND t.slug = %s", $q['post_format']); |
| 690 |
} |
| 691 |
|
| 692 |
$res = $wpdb->get_results($select . $join . $where . $groupby, ARRAY_A); |
| 693 |
foreach ((array) $res as $row) |
| 694 |
$counts[$row['term_taxonomy_id']] = $row['num_posts']; |
| 695 |
|
| 696 |
wp_cache_set($cache_key, $counts, 'pll_count_posts'); |
| 697 |
} |
| 698 |
|
| 699 |
return empty($counts[$lang->term_taxonomy_id]) ? 0 : $counts[$lang->term_taxonomy_id]; |
| 700 |
} |
| 701 |
|
| 702 |
/* |
| 703 |
* adds language dependent cache domain when explicitely querying terms per language |
| 704 |
* useful as the 'lang' parameter is not included in cache key by WordPress |
| 705 |
* |
| 706 |
* @since 1.3 |
| 707 |
*/ |
| 708 |
public function get_terms_args($args) { |
| 709 |
if (isset($args['lang'])) { |
| 710 |
$key = '_' . (is_array($args['lang']) ? implode(',', $args['lang']) : $args['lang']); |
| 711 |
$args['cache_domain'] = empty($args['cache_domain']) ? 'pll' . $key : $args['cache_domain'] . $key; |
| 712 |
} |
| 713 |
|
| 714 |
return $args; |
| 715 |
} |
| 716 |
|
| 717 |
/* |
| 718 |
* returns ids of objects in a language similarly to get_objects_in_term for a taxonomy |
| 719 |
* faster than get_objects_in_term as it avoids a JOIN |
| 720 |
* |
| 721 |
* @since 1.4 |
| 722 |
* |
| 723 |
* @param object $lang a PLL_Language object |
| 724 |
* @param string $type optional, either 'post' or 'term', defaults to 'post' |
| 725 |
* @return array |
| 726 |
*/ |
| 727 |
public function get_objects_in_language($lang, $type = 'post') { |
| 728 |
global $wpdb; |
| 729 |
return $wpdb->get_col($wpdb->prepare(" |
| 730 |
SELECT object_id FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", |
| 731 |
'term' == $type ? $lang->tl_term_taxonomy_id : $lang->term_taxonomy_id |
| 732 |
)); |
| 733 |
} |
| 734 |
} |
| 735 |
|
