Можно сделать?

есть блог про трейлеры к фильмам, как сделать, что бы когда кликаешь на категорию, таг или поиск по блогу, то статьи сортировались по дате выхода фильма которая указывается при создании поста в дополнительном поле?



поле имеет свой идентификатор (тут я не уверен в правильности названия)

в файле loop-single.php

Код: [развернуть]

<?php if (get_post_meta($post->ID, 'review_release_rf_value', true)) { ?> <div class="review-info-title">Премьера (РФ):</div> <div class="review-info-data"><?php echo get_post_meta($post->ID, "review_release_rf_value", $single = true); ?></div> <?php } ?>

и в файле functions.php

Код: [развернуть]

<?php $post_custom_fields = array(    "review_release_rf" => array(       "name" => "review_release_rf",       "std" => "",       "title" => "Премьера (РФ):",       "description" => ""    ), ); ....

как сделать?

functions.php

Код:

function _sort($query) {     if( ! is_admin() && $query->is_main_query() && ($query->is_category() || $query->is_tag() || $query->is_search())) {         $query->set('order', 'DESC');         $query->set('orderby', 'meta_value_num');         $query->set('meta_key', 'review_release_rf');     } } add_action( 'pre_get_posts', '_sort' );

Будет работать при условии, что дата хранится в виде метки времени Unix.

Yacc писал:

functions.php Код: function _sort($query) {     if( ! is_admin() && $query->is_main_query() && ($query->is_category() || $query->is_tag() || $query->is_search())) {         $query->set('order', 'DESC');         $query->set('orderby', 'meta_value_num');         $query->set('meta_key', 'review_release_rf');     } } add_action( 'pre_get_posts', '_sort' ); Будет работать при условии, что дата хранится в виде метки времени Unix.

перевел несколько дат в Unix, вставляю код(в верх файла functions.php после <?php ), сайт работает посты сортируются, только в админку попасть нельзя, перед входом такие ошибки

Код: [развернуть]

Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 701 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 702 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 705 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 706 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 707 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 708 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 711 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 712 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 713 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 714

ввожу логин пароль и получаю белый лист с ошибками

Код: [развернуть]

Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-login.php on line 362 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-login.php on line 374 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-login.php on line 376 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 680 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 681 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 682 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 684 Warning: Cannot modify header information - headers already sent by (output started at /var/www/data/www/domen.com/wordpress/wp-content/themes/domen/functions.php:1) in /var/www/data/www/domen.com/wordpress/wp-includes/pluggable.php on line 881

может не так вставляю?
вот так выглядит

Код: [развернуть]

<?php function _sort($query) {     if( ! is_admin() && $query->is_main_query() && ($query->is_category() || $query->is_tag() || $query->is_search())) {         $query->set('order', 'DESC');         $query->set('orderby', 'meta_value_num');         $query->set('meta_key', 'review_unix_value');     } } add_action( 'pre_get_posts', '_sort' ); $post_custom_fields = array(    "review_name" => array(       "name" => "review_name",       "std" => "",       "title" => "Название:",       "description" => ""    ), ....

так-то сложно гадать, попробуй в конец functions.php вставить.