自定义永久链接，在Wordpress自定义帖子类型上使用动态重写标记

1 回答

• 2

  我假设所有 location 帖子都有一个永久链接结构，如下所示：

  example.com/{STATE NAME}/locations/{CPT SLUG}
  

  示例URL地址：

  http://example.com/alabama/locations/location-1
  http://example.com/alabama/locations/location-2
  http://example.com/new-york/locations/location-3
  

  ---

  所以，如果这是正确的，那么：

  •使用 add_rewrite_rule() 函数为这些永久链接添加自定义重写规则 .

  •您不需要 /locations/ Page .

  add_action( 'init', function(){
      // Handles requests to `your-site-domain.com/{STATE NAME}/locations/{CPT SLUG}`
      add_rewrite_rule(
          '([^/]+)/locations/([^/]+)(?:/([0-9]+))?/?$',
          'index.php?location=$matches[2]&page=$matches[3]&state_name=$matches[1]',
          'top'
      );
  
      // Allows you to retrieve the `state_name`; for example using `get_query_var()`.
      add_rewrite_tag( '%state_name%', '([\w\-]+)' );
  } );
  

  （您可以将 state_name 更改为其他名称;它会忘记刷新重写规则 - 转到“永久链接设置”页面并单击“保存更改”按钮，而不必进行任何更改 . ）

  ---

  接下来，当您创建或编辑 location 帖子时，请将 post_parent 自定义字段的值设置为'state Page'的ID - 例如 /alabama/ 页 .

  此代码将过滤 get_permalink() 输出，并返回 location 帖子的相应永久链接：

  add_filter( 'post_type_link', 'so51217355_post_type_link', 10, 2 );
  function so51217355_post_type_link( $permalink, $post ) {
      if ( 'location' === $post->post_type ) {
          $page_id = get_post_meta( $post->ID, 'post_parent', true );
  
          $state_name = ( is_numeric( $page_id ) && $page_id ) ?
              get_post_field( 'post_name', $page_id ) : null;
  
          // Make sure the post is associated to a valid 'state Page'.
          if ( $state_name ) {
              $permalink = $state_name . '/locations/' . $post->post_name;
              $permalink = home_url( user_trailingslashit( $permalink ) );
          }
      }
  
      return $permalink;
  }
  

  例如， get_permalink( 123 ) 将返回 http://example.com/alabama/locations/location-1 ，如果 location 帖子的slug是 location-1 ，其'state Page'是 /alabama/ .

  ---

  更新

  当请求永久链接时（即用户访问 example.com/{STATE NAME}/locations/{CPT SLUG} ），并且您想确保'state Page'和 location 帖子都存在，并且'state Page'确实与 location 帖子相关联，那么此代码可以帮助您：

  // Validates the `state_name` of the current page/URL.
  add_action( 'parse_request', 'so51217355_parse_request' );
  function so51217355_parse_request( $wp ) {
      if ( ! empty( $wp->query_vars['state_name'] ) &&
          ! empty( $wp->query_vars['location'] ) ) {
          global $wpdb;
  
          $page_id = $wpdb->get_var( $wpdb->prepare(
              "SELECT ID FROM {$wpdb->posts} WHERE post_name = %s",
              $wp->query_vars['state_name']
          ) );
  
          if ( ! is_numeric( $page_id ) || ! $page_id ) {
              $wp->query_vars['error'] = '404';
  
              // Don't let WordPress finds a post with nearest match.
              remove_action( 'template_redirect', 'redirect_canonical' );
  
              return;
          }
  
          $post_id = $wpdb->get_var( $wpdb->prepare(
              "SELECT ID FROM {$wpdb->posts} WHERE post_name = %s",
              $wp->query_vars['location']
          ) );
  
          $page_id2 = get_post_meta( $post_id, 'post_parent', true );
          if ( (int) $page_id2 !== (int) $page_id ) {
              $wp->query_vars['error'] = '404';
  
              // Don't let WordPress finds a post with nearest match.
              remove_action( 'template_redirect', 'redirect_canonical' );
          }
      }
  }
  

  更新＃2

  请参阅此图像下方代码中的 // Comment - 请参阅 _so51217355_admin_ajax_js() 功能 .

  

  add_action( 'wp_ajax_so51217355_admin_ajax', '_so51217355_admin_ajax_php' );
  function _so51217355_admin_ajax_php() {
      $post_id = filter_input( INPUT_POST, 'post_id' );
      echo get_sample_permalink_html( $post_id );
      wp_die();
  }
  
  add_action( 'admin_print_footer_scripts', '_so51217355_admin_ajax_js', 11 );
  function _so51217355_admin_ajax_js() {
      $screen = get_current_screen();
      if ( 'location' === $screen->id ) :
      ?>
  <script>
  // This script will sync the Permalink under the big/main post title box on
  // the Edit Post page; but only if and when editing or deleting the custom
  // field as in `meta_key` below. Make sure to change it, if necessary.
  jQuery( function( $ ){
      var meta_key = 'post_parent';
  
      function ajax() {
          $.post( ajaxurl, {
              action: 'so51217355_admin_ajax',
              post_id: $( '#post_ID' ).val()
          }, function( s ){
              $( '#edit-slug-box' ).html( s );
          } );
      }
  
      function _go( e, a ) {
          var $input = $( a.target ),
              mid, mkey;
  
          if ( /^meta\-(\d+)\-submit$/.test( $input.attr( 'name' ) ) ||
              /^deletemeta\[(\d+)\]$/.test( $input.attr( 'name' ) ) ) {
              mid = RegExp.$1;
              mkey = $( 'input[name="meta[' + mid + '][key]"]' ).val();
  
              if ( meta_key === mkey ) {
                  ajax();
              }
          }
      }
  
      $( '#the-list' )
          .on( 'wpListAddEnd', _go )
          .on( 'wpListDelEnd', _go );
  } );
  </script>
      <?php
      endif;
  }
  

  回复于 2024-05-09T00:32:13+08:00