自定义标签的字母列表/索引 - >即使为空 - Wordpress

Question

在 wordpress (3.4) 中，我创建了一些代码，它返回自定义标签的字母列表/索引，并在网格布局中过滤自定义帖子。标签被命名为“tagdirectory”。自定义帖子被命名为“目录”。

这是代码：

<?php $list = ''; 
$tags = get_terms( 'tagdirectory' ); 
echo '<ul id="portfolio-filter">'; 
echo'<li><a href="#all" title="">All</a></li>';
$groups = array();
if( $tags && is_array( $tags ) ) {
foreach( $tags as $tag ) {
$first_letter = strtoupper( $tag->name[0] );
$groups[ $first_letter ][] = $tag;}
if( !empty( $groups ) ) {
foreach( $groups as $letter => $tags ) {
$list .= "\n\t" . '<h2>' . apply_filters( 'the_title', $letter ) .'</h2>';
$list .= "\n\t" . '<ul>';
foreach( $tags as $tag ) {
$lower = strtolower($tag->name);
$name = str_replace(' ', ' ', $tag->name);
$naam = str_replace(' ', '-', $lower);
$list .= "\n\t\t" . '<li><a href="#'.$naam.'">'.$name.'</a></li>';
}}}}else $list .= "\n\t" . '<p>Sorry, but no tags were found</p>';print $list;
echo "</ul>";
?>

这很好用，但我也希望显示字母表中的空字母。

例如，现在它返回：

一个

Aicher Otl

阿佩洛格·菲利普

B

低音扫罗

F

Fitszimmons 莫琳

...等等

但它不显示空字母组，因为没有以该字母开头的标签。我确实需要它来显示空组的大写字母，如下所示：

一个

Aicher Otl

阿佩洛格·菲利普

B

低音扫罗

C

D

E

F

Fitszimmons 莫琳

G

...等等

谁能帮助我并告诉我应该添加什么代码才能使其正常工作？

谢谢！

Answer 1

我刚刚编辑了这个解决方案> http://wordpress.mcdspot.com/2010/12/03/template-to-list-posts-by-first-letter-of-title/

我通过将第 37 行的“帖子类型”更改为正确的自定义分类法（我用来按名称列出公司的“分销商”）来显示自定义帖子类型，并且成功了。

代码如下：

<?php
/*
Template Name: A-Z Pages

A WordPress template to list page titles by first letter.

You should modify the CSS to suit your theme and place it in its proper file.
Be sure to set the $posts_per_row and $posts_per_page variables.
*/
$posts_per_row = 3;
$posts_per_page = 15;
?>

<?php get_header(); ?>

<style type="text/css">
.letter-group { width: 100%; }
.letter-cell { width: 5%; height: 2em; text-align: center; padding-top: 8px; margin-bottom: 8px; background: #e0e0e0; float: left; }
.row-cells { width: 70%; float: right; margin-right: 180px; }
.title-cell { width: 30%;  float: left; overflow: hidden; margin-bottom: 8px; }
.clear { clear: both; }
</style>

<div id="main-background">

   <div id="main-column">
      <h1><?php the_title(); ?></h1>

      <div class="margin-top"></div>

      <div id="a-z">

         <?php
         $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
         $args = array (
            'posts_per_page' => $posts_per_page,
            'post_type' => 'page',
            'orderby' => 'title',
            'order' => 'ASC',
            'paged' => $paged
         );
         query_posts($args);
         if ( have_posts() ) {
            $in_this_row = 0;
            while ( have_posts() ) {
               the_post();
               $first_letter = strtoupper(substr(apply_filters('the_title',$post->post_title),0,1));
               if ($first_letter != $curr_letter) {
                  if (++$post_count > 1) {
                     end_prev_letter();
                  }
                  start_new_letter($first_letter);
                  $curr_letter = $first_letter;
               }
               if (++$in_this_row > $posts_per_row) {
                  end_prev_row();
                  start_new_row();
                  ++$in_this_row;  // Account for this first post
               } ?>
               <div class="title-cell"><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></div>
            <?php }
            end_prev_letter();
            ?>
            <div class="navigation">
               <div class="alignleft"><?php next_posts_link('&laquo; Higher Letters') ?></div>
               <div class="alignright"><?php previous_posts_link('Lower Letters &raquo;') ?></div>
            </div>
         <?php } else {
            echo "<h2>Sorry, no posts were found!</h2>";
         }
         ?>

      </div><!-- End id='a-z' -->

   </div><!-- End class='margin-top -->

</div><!-- End id='rightcolumn' -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>

<?php
function end_prev_letter() {
   end_prev_row();
   echo "</div><!-- End of letter-group -->\n";
   echo "<div class='clear'></div>\n";
}
function start_new_letter($letter) {
   echo "<div class='letter-group'>\n";
   echo "\t<div class='letter-cell'>$letter</div>\n";
   start_new_row($letter);
}
function end_prev_row() {
   echo "\t</div><!-- End row-cells -->\n";
}
function start_new_row() {
   global $in_this_row;
   $in_this_row = 0;
   echo "\t<div class='row-cells'>\n";
}

?>