| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* manages links filters and url of translations on frontend |
| 5 |
* |
| 6 |
* @since 1.2 |
| 7 |
*/ |
| 8 |
class PLL_Frontend_Links extends PLL_Links { |
| 9 |
public $curlang; |
| 10 |
public $cache; // our internal non persistent cache object |
| 11 |
|
| 12 |
/** |
| 13 |
* constructor |
| 14 |
* |
| 15 |
* @since 1.2 |
| 16 |
* |
| 17 |
* @param object $polylang |
| 18 |
*/ |
| 19 |
public function __construct( &$polylang ) { |
| 20 |
parent::__construct( $polylang ); |
| 21 |
|
| 22 |
$this->curlang = &$polylang->curlang; |
| 23 |
$this->cache = new PLL_Cache(); |
| 24 |
|
| 25 |
} |
| 26 |
|
| 27 |
/** |
| 28 |
* returns the url of the translation ( if exists ) of the current page |
| 29 |
* |
| 30 |
* @since 0.1 |
| 31 |
* |
| 32 |
* @param object $language |
| 33 |
* @return string |
| 34 |
*/ |
| 35 |
public function get_translation_url( $language ) { |
| 36 |
global $wp_query; |
| 37 |
|
| 38 |
if ( false !== $translation_url = $this->cache->get( 'translation_url:' . $language->slug ) ) { |
| 39 |
return $translation_url; |
| 40 |
} |
| 41 |
|
| 42 |
// make sure that we have the queried object |
| 43 |
// see https://wordpress.org/support/topic/patch-for-fixing-a-notice |
| 44 |
$queried_object_id = $wp_query->get_queried_object_id(); |
| 45 |
|
| 46 |
/** |
| 47 |
* Filter the translation url before Polylang attempts to find one |
| 48 |
* Internally used by Polylang for the static front page and posts page |
| 49 |
* |
| 50 |
* @since 1.8 |
| 51 |
* |
| 52 |
* @param string $url empty or the url of the translation of teh current page |
| 53 |
* @param object $language language of the translation |
| 54 |
* @param int $queried_object_id queried object id |
| 55 |
*/ |
| 56 |
if ( ! $url = apply_filters( 'pll_pre_translation_url', '', $language, $queried_object_id ) ) { |
| 57 |
$qv = $wp_query->query_vars; |
| 58 |
$hide = $this->options['default_lang'] == $language->slug && $this->options['hide_default']; |
| 59 |
|
| 60 |
// post and attachment |
| 61 |
if ( is_single() && ( $this->options['media_support'] || ! is_attachment() ) && ( $id = $this->model->post->get( $queried_object_id, $language ) ) && $this->current_user_can_read( $id ) ) { |
| 62 |
$url = get_permalink( $id ); |
| 63 |
} |
| 64 |
|
| 65 |
// page |
| 66 |
elseif ( is_page() && ( $id = $this->model->post->get( $queried_object_id, $language ) ) && $this->current_user_can_read( $id ) ) { |
| 67 |
$url = get_page_link( $id ); |
| 68 |
} |
| 69 |
|
| 70 |
elseif ( is_search() ) { |
| 71 |
$url = $this->get_archive_url( $language ); |
| 72 |
|
| 73 |
// special case for search filtered by translated taxonomies: taxonomy terms are translated in the translation url |
| 74 |
if ( ! empty( $wp_query->tax_query->queries ) ) { |
| 75 |
foreach ( $wp_query->tax_query->queries as $tax_query ) { |
| 76 |
if ( ! empty( $tax_query['taxonomy'] ) && $this->model->is_translated_taxonomy( $tax_query['taxonomy'] ) ) { |
| 77 |
|
| 78 |
$tax = get_taxonomy( $tax_query['taxonomy'] ); |
| 79 |
$terms = get_terms( $tax->name, array( 'fields' => 'id=>slug' ) ); // filtered by current language |
| 80 |
|
| 81 |
foreach ( $tax_query['terms'] as $slug ) { |
| 82 |
$term_id = array_search( $slug, $terms ); // what is the term_id corresponding to taxonomy term? |
| 83 |
if ( $term_id && $term_id = $this->model->term->get_translation( $term_id, $language ) ) { // get the translated term_id |
| 84 |
$term = get_term( $term_id, $tax->name ); |
| 85 |
$url = str_replace( $slug, $term->slug, $url ); |
| 86 |
} |
| 87 |
} |
| 88 |
} |
| 89 |
} |
| 90 |
} |
| 91 |
} |
| 92 |
|
| 93 |
// translated taxonomy |
| 94 |
// take care that is_tax() is false for categories and tags |
| 95 |
elseif ( ( is_category() || is_tag() || is_tax() ) && ( $term = get_queried_object() ) && $this->model->is_translated_taxonomy( $term->taxonomy ) ) { |
| 96 |
$lang = $this->model->term->get_language( $term->term_id ); |
| 97 |
|
| 98 |
if ( ! $lang || $language->slug == $lang->slug ) { |
| 99 |
$url = wpcom_vip_get_term_link( $term, $term->taxonomy ); // self link |
| 100 |
} |
| 101 |
|
| 102 |
elseif ( $tr_id = $this->model->term->get_translation( $term->term_id, $language ) ) { |
| 103 |
$tr_term = get_term( $tr_id, $term->taxonomy ); |
| 104 |
// check if translated term ( or children ) have posts |
| 105 |
if ( $tr_term && ( $tr_term->count || ( is_taxonomy_hierarchical( $term->taxonomy ) && array_sum( wp_list_pluck( get_terms( $term->taxonomy, array( 'child_of' => $tr_term->term_id, 'lang' => $language->slug ) ), 'count' ) ) ) ) ) { |
| 106 |
$url = wpcom_vip_get_term_link( $tr_term, $term->taxonomy ); |
| 107 |
} |
| 108 |
} |
| 109 |
} |
| 110 |
|
| 111 |
// post type archive |
| 112 |
elseif ( is_post_type_archive() ) { |
| 113 |
if ( $this->model->is_translated_post_type( $qv['post_type'] ) && $this->model->count_posts( $language, array( 'post_type' => $qv['post_type'] ) ) ) { |
| 114 |
$url = $this->get_archive_url( $language ); |
| 115 |
} |
| 116 |
} |
| 117 |
|
| 118 |
elseif ( is_archive() ) { |
| 119 |
$keys = array( 'post_type', 'm', 'year', 'monthnum', 'day', 'author', 'author_name' ); |
| 120 |
$keys = array_merge( $keys, $this->model->get_filtered_taxonomies_query_vars() ); |
| 121 |
|
| 122 |
// check if there are existing translations before creating the url |
| 123 |
if ( $this->model->count_posts( $language, array_intersect_key( $qv, array_flip( $keys ) ) ) ) { |
| 124 |
$url = $this->get_archive_url( $language ); |
| 125 |
} |
| 126 |
} |
| 127 |
|
| 128 |
// front page when it is the list of posts |
| 129 |
elseif ( is_front_page() ) { |
| 130 |
$url = $this->get_home_url( $language ); |
| 131 |
} |
| 132 |
} |
| 133 |
|
| 134 |
/** |
| 135 |
* Filter the translation url of the current page before Polylang caches it |
| 136 |
* |
| 137 |
* @since 1.1.2 |
| 138 |
* |
| 139 |
* @param null|string $url the translation url, null if none was found |
| 140 |
* @param string $language the language code of the translation |
| 141 |
*/ |
| 142 |
$translation_url = apply_filters( 'pll_translation_url', ( isset( $url ) && ! is_wp_error( $url ) ? $url : null ), $language->slug ); |
| 143 |
$this->cache->set( 'translation_url:' . $language->slug, $translation_url ); |
| 144 |
return $translation_url; |
| 145 |
} |
| 146 |
|
| 147 |
/** |
| 148 |
* get the translation of the current archive url |
| 149 |
* used also for search |
| 150 |
* |
| 151 |
* @since 1.2 |
| 152 |
* |
| 153 |
* @param object $language |
| 154 |
* @return string |
| 155 |
*/ |
| 156 |
public function get_archive_url( $language ) { |
| 157 |
$url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; |
| 158 |
$url = $this->links_model->switch_language_in_link( $url, $language ); |
| 159 |
$url = $this->links_model->remove_paged_from_link( $url ); |
| 160 |
|
| 161 |
/** |
| 162 |
* Filter the archive url |
| 163 |
* |
| 164 |
* @since 1.6 |
| 165 |
* |
| 166 |
* @param string $url url of the archive |
| 167 |
* @param object $language language of the archive |
| 168 |
*/ |
| 169 |
return apply_filters( 'pll_get_archive_url', $url, $language ); |
| 170 |
} |
| 171 |
|
| 172 |
/** |
| 173 |
* returns the home url in the right language |
| 174 |
* |
| 175 |
* @since 0.1 |
| 176 |
* |
| 177 |
* @param object $language optional defaults to current language |
| 178 |
* @param bool $is_search optional wether we need the home url for a search form, defaults to false |
| 179 |
*/ |
| 180 |
public function get_home_url( $language = '', $is_search = false ) { |
| 181 |
if ( empty( $language ) ) { |
| 182 |
$language = $this->curlang; |
| 183 |
} |
| 184 |
|
| 185 |
return parent::get_home_url( $language, $is_search ); |
| 186 |
} |
| 187 |
} |
| 188 |
|
