我读过这个： Woocommerce 获取下一个/上一个产品
还尝试过这个：
<?php previous_post_link('%link', 'Previous in category', TRUE); ?>其中任何一个都在 woocommerce 产品类别下工作，有什么想法吗？
提前致谢！
<?php previous_post_link_product('%link', '« Anterior: %title', true); ?>
<?php next_post_link_product('%link', 'Siguiente: %title »', true); ?>
在您的文件 yourtheme/functions.php 中添加这些函数
function next_post_link_product($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') {
adjacent_post_link_product($format, $link, $in_same_cat, $excluded_categories, false);
}
function previous_post_link_product($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
adjacent_post_link_product($format, $link, $in_same_cat, $excluded_categories, true);
}
function adjacent_post_link_product( $format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true ) {
if ( $previous && is_attachment() )
$post = get_post( get_post()->post_parent );
else
$post = get_adjacent_post_product( $in_same_cat, $excluded_categories, $previous );
if ( ! $post ) {
$output = '';
} else {
$title = $post->post_title;
if ( empty( $post->post_title ) )
$title = $previous ? __( 'Previous Post' ) : __( 'Next Post' );
$title = apply_filters( 'the_title', $title, $post->ID );
$date = mysql2date( get_option( 'date_format' ), $post->post_date );
$rel = $previous ? 'prev' : 'next';
$string = '<a href="' . get_permalink( $post ) . '" rel="'.$rel.'">';
$inlink = str_replace( '%title', $title, $link );
$inlink = str_replace( '%date', $date, $inlink );
$inlink = $string . $inlink . '</a>';
$output = str_replace( '%link', $inlink, $format );
}
$adjacent = $previous ? 'previous' : 'next';
echo apply_filters( "{$adjacent}_post_link", $output, $format, $link, $post );
}
function get_adjacent_post_product( $in_same_cat = false, $excluded_categories = '', $previous = true ) {
global $wpdb;
if ( ! $post = get_post() )
return null;
$current_post_date = $post->post_date;
$join = '';
$posts_in_ex_cats_sql = '';
if ( $in_same_cat || ! empty( $excluded_categories ) ) {
$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
if ( $in_same_cat ) {
if ( ! is_object_in_taxonomy( $post->post_type, 'product_cat' ) )
return '';
$cat_array = wp_get_object_terms($post->ID, 'product_cat', array('fields' => 'ids'));
if ( ! $cat_array || is_wp_error( $cat_array ) )
return '';
$join .= " AND tt.taxonomy = 'product_cat' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
}
$posts_in_ex_cats_sql = "AND tt.taxonomy = 'product_cat'";
if ( ! empty( $excluded_categories ) ) {
if ( ! is_array( $excluded_categories ) ) {
// back-compat, $excluded_categories used to be IDs separated by " and "
if ( strpos( $excluded_categories, ' and ' ) !== false ) {
_deprecated_argument( __FUNCTION__, '3.3', sprintf( __( 'Use commas instead of %s to separate excluded categories.' ), "'and'" ) );
$excluded_categories = explode( ' and ', $excluded_categories );
} else {
$excluded_categories = explode( ',', $excluded_categories );
}
}
$excluded_categories = array_map( 'intval', $excluded_categories );
if ( ! empty( $cat_array ) ) {
$excluded_categories = array_diff($excluded_categories, $cat_array);
$posts_in_ex_cats_sql = '';
}
if ( !empty($excluded_categories) ) {
$posts_in_ex_cats_sql = " AND tt.taxonomy = 'product_cat' AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
}
}
}
$adjacent = $previous ? 'previous' : 'next';
$op = $previous ? '<' : '>';
$order = $previous ? 'DESC' : 'ASC';
$join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_cat, $excluded_categories );
$where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date, $post->post_type), $in_same_cat, $excluded_categories );
$sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
$query = "SELECT p.id FROM $wpdb->posts AS p $join $where $sort";
$query_key = 'adjacent_post_' . md5($query);
$result = wp_cache_get($query_key, 'counts');
if ( false !== $result ) {
if ( $result )
$result = get_post( $result );
return $result;
}
$result = $wpdb->get_var( $query );
if ( null === $result )
$result = '';
wp_cache_set($query_key, $result, 'counts');
if ( $result )
$result = get_post( $result );
return $result;
}
示例：
<?php previous_post_link( 'Previous: %link', '%title', true, '', 'product_cat' ); ?>
<?php next_post_link( 'Next: %link', '%title', true, '', 'product_cat' ); ?>
解释：
使用 WordPress 的
previous_post_linknext_post_link除了将
trueproduct_cat需要注意的一点是，这些函数将获取与分配给当前产品的任何条款匹配的下一个/上一个产品。可以通过将术语 id 作为第四个参数传递来排除术语 ($exclude_terms)。
参考：
https://developer.wordpress.org/reference/functions/previous_post_link/ https://developer.wordpress.org/reference/functions/next_post_link/
<?php previous_post_link( $format, $link, $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ); ?>
<?php next_post_link( $format, $link, $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ); ?>
Edgardos 解决方案对我来说是一个很棒的起点。
但是，它假设产品是按 post_date 订购的。通常menu_order应该有更高的排序优先级。
所以我改变了：
$current_post_date = $post->post_date;进入：
$current_post_menu_order = $post->menu_order;$在哪里使用 p.menu_order / $current_post_menu_order:
$where = apply_filters( "get_{$adjacent}_post_where",
$wpdb->prepare("WHERE p.menu_order $op %s AND p.post_type = %s AND p.post_status = 'publish' $posts_in_ex_cats_sql",
$current_post_menu_order, $post->post_type), $in_same_cat, $excluded_categories );