在Wordpress中为动态URL和漂亮URL使用URL重写规则

Question

I have a page slugged book-store . I want this page to have different sections, namely: category and book . I'd like to use rewrite rules to achieve pretty urls that match the following example routes:

example.com/book-store/category/{category_name}
example.com/book-store/book/{book_id}

I've tried the following but I reckon I'm missing something important:

functions.php :

add_filter('query_vars', 'add_state_var', 0, 1);
function add_state_var($vars)
{
    $vars[] = 'category_name';
    $vars[] = 'book_id';
    return $vars;
}

page-book-store.php :

add_rewrite_rule('^book-store/category/([^/]*)/?', 'index.php?post_type=page&name=book-store&book-category=$matches[1]', 'top');
add_rewrite_rule('^book-store/book/([^/]*)/?', 'index.php?post_type=page&name=book-store&book-id=$matches[1]', 'top');

I then went into /wp-admin and clicked save in permalink settings

whenever I hit the urls example.com/book-store/category/fiction or example.com/book-store/book/123 i get a 404

I'm using apache2.4 and mysql. The mod-rewrite module is enabled in apache.

What am I missing/doing wrong here?

Answer 1

As I understand right:

• you have page example.com/book-store/

• you want to create urls like:

   example.com/book-store/category/{category_name} example.com/book-store/book/{book_id} 

  where the {category_name} and {book_id} are query vars

The code you added into page-book-store.php file will not work, just because the url was queried before your code. Also, the filter add_filter('query_vars', 'add_state_var', 0, 1); will not work, too. The priority of this filter is 10, but you used 0.

To achieve your goal add this code into your functions.php file:

add_action('init', 'ww_rewrite_book_store');
function ww_rewrite_book_store(){
    add_rewrite_tag('%book_id%', '([^&]+)');
    add_rewrite_rule('^(book-store)/book/([^/]*)/?', 'index.php?pagename=$matches[1]&book_id=$matches[2]', 'top');

    add_rewrite_tag('%category_name%', '([^&]+)');
    add_rewrite_rule('^(book-store)/category/([^/]*)/?', 'index.php?pagename=$matches[1]&category_name=$matches[2]', 'top');
}

After go to Dashboard > Settings > Permalinks and just click to Save Changes button.

First, we used add_rewrite_tag() to establish the query vars. And used add_rewrite_rule() to make it work right.

For example, if your url will be example.com/book-store/category/some_category , you can use query vars( get {some_category} ) in the page-book-store.php file like:

echo get_query_var('category_name');