我使用functions.hp.中的以下代码设置了一个自定义的帖子类型和自定义分类法
在前端的存档页面上单击时以及在管理员编辑屏幕中单击"查看文章"时，URL会正确写入。但是，当帖子在网站搜索结果中返回时，自定义分类法实际上就不见了。搜索结果上的URL为http://www.example.com/foo//postname.
知道为什么URL中的自定义分类法在某些情况下有效，而在其他情况下无效吗？add_action('init'，'create_foo_posttype'(；函数create_foo_posttype((｛
$tax_labels = array(
'name' => _x( 'Foo Categories', 'taxonomy general name' ),
'singular_name' => _x( 'Foo Category', 'taxonomy singular name' ),
'all_items' => __( 'All Foo Categories' ),
'parent_item' => null,
'parent_item_colon' => null,
'edit_item' => __( 'Edit Foo Category' ),
'update_item' => __( 'Update Foo Category' ),
'add_new_item' => __( 'Add New Foo Category' ),
'new_item_name' => __( 'New Foo Category Name' ),
);
register_taxonomy('foo_categories','foo',array(
'labels' => $tax_labels,
'hierarchical' => true,
'has_archive' => true,
'show_admin_column' => true,
'query_var' => true,
'rewrite' => array( 'slug' => 'foo' )
));
register_post_type( 'foo',
array(
'labels' => array(
'name' => __( 'Foo' ),
'singular_name' => __( 'Foo' )
),
'public' => true,
'exclude_from_search' => false,
'show_ui' => true,
'show_in_menu' => true,
'menu_position' => 100,
'capability_type' => 'post',
'supports' => array( 'title', 'author', 'thumbnail', 'trackbacks', 'revisions' ),
'taxonomies' => array( 'foo_categories' ),
'has_archive' => true,
'rewrite' => array( 'slug' => 'foo/%foo_categories%')
)
);
flush_rewrite_rules();
}
add_action( 'init', 'cust_rewrite_init' );
function cust_rewrite_init() {
$GLOBALS['wp_rewrite']->use_verbose_page_rules = true;
}
add_filter( 'page_rewrite_rules', 'cust_rewrite_collect_page_rewrite_rules' );
function cust_rewrite_collect_page_rewrite_rules( $page_rewrite_rules )
{
$GLOBALS['cust_rewrite_page_rewrite_rules'] = $page_rewrite_rules;
return array();
}
add_filter( 'rewrite_rules_array', 'cust_rewrite_prepend_page_rewrite_rules' );
function cust_rewrite_prepend_page_rewrite_rules( $rewrite_rules )
{
return $GLOBALS['cust_rewrite_page_rewrite_rules'] + $rewrite_rules;
}
我发现了问题。它不在我最初发布的代码中。就在这里：
add_filter('post_type_link', 'cust_permalink_structure', 1, 4);
function cust_permalink_structure($post_link, $post, $leavename, $sample)
{
if ( false !== strpos( $post_link, '%foo_categories%' ) ) {
$post_type_term = get_the_terms( $post->ID, 'foo_categories' );
$post_link = str_replace( '%foo_categories%', $post_type_term[0]->slug, $post_link );
}
return $post_link;
}
如果一篇帖子有多个纳税价值，则使用$post_type_term[0]->slug;有效，但当帖子只有一个纳税价值时(我的所有帖子都是这样(，则失败。为了修复它，我使用了array_pop而不是其他数组调用，它工作得很好。解决的代码：
add_filter('post_type_link', 'cust_permalink_structure', 1, 4);
function cust_permalink_structure($post_link, $post, $leavename, $sample)
{
if ( false !== strpos( $post_link, '%foo_categories%' ) ) {
$post_type_term = get_the_terms( $post->ID, 'foo_categories' );
$one_term = array_pop($post_type_term);
$post_link = str_replace( '%foo_categories%', $one_term->slug, $post_link );
}
return $post_link;
}