在存档页面上添加一个DropDown分类过滤器 [英] Add a DropDown Taxonomy Filter on Archive Page

问题描述

以下是分类法的HTML输出：

/ p>

 < form method =postaction =<？php echo $ _SERVER ['PHP_SELF'];？> > 
 < option value =>选择服务< / option> 
< option value =密集支持>强化支持< / option> 
< option value =recovery-work>恢复工作< / option> 
< option value =tenant-support> Tenant Support< / option> 
< / select> 
< / form> 
  
以下是查询码： 
 
 
 < table class =dataTable> 
< tr> 
< th>名称< / th> 
< th>位置< / th> 
< th>网站< / th> 
服务（s）< / th> 
< / tr> 
<？php $ service_query = new WP_Query（'post_type = ptype_service& posts_per_page = -1'）; ？> 
<？php $ j = 0？> 
 <？php while（$ service_query-> have_posts（））：$ service_query-> the_post（）; ？> 
<？php $ additional_class =（++ $ j％2 == 0）？ 'even'：'odd'; ？> 
< tr class =<？php echo $ additional_class？>> 
< td><？php the_title（）？>< / td> 
< td><？php echo（get_post_meta（$ post-> ID，'pir_groups_location'，true））？>< / td> 
< td>< a target =_ blankhref =http：//<？php echo（get_post_meta（$ post-> ID，'pir_groups_website'，true））？>> ;<？php echo（get_post_meta（$ post-> ID，'pir_groups_website'，true））？>< / a>< / td> 
< td> 
<？php 
 $ terms = get_the_terms（$ post-> ID，'services'）; 
 if（$ terms&&！is_wp_error（$ terms））：
 $ services_links = array（）; 
 foreach（$ terms为$ term）{
 $ services_links [] = $ term-> name; 
} 
 $ on_draught = join（，，$ services_links）; 
？> 
 <？php echo $ on_draught; ？> 
<？php endif; ？> 
< / td> 
< / tr> 
 <？php endwhile; ？> 
< / table> 
  
问候 
 
解决方案自己找到解决方案：）
 
 
刚刚改变了表单动作，现在它工作正常：
 
 
 < form method =postaction =<？php the_permalink（）？>> 
 < option value =>所有服务< / option> 
<？php 
 $ terms = get_terms（'services'）; 
 if（$ terms）{
 foreach（$ terms as $ term）{？> 
< option<？php if（$ term-> slug == $ _POST ['services']）{echo'selected =selected';}？> value =<？php echo esc_attr（$ term-> slug）？>><？php echo esc_html（$ term-> name）？>< / option> 
<？php} 
} 
？> 
< / select> 
< / form> 
  




I need to add a taxonomy dropdwon filter in archive page so that I can display the posts assigned to selected taxonomy.

Here is the HTML Output for taxonomies:

<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
  <select name="services" id="selectservice" class="postform" onchange="submit();">
    <option value="">Select Service</option>
    <option value="intensive-support">Intensive Support</option>
    <option value="recovery-work">Recovery Work</option>
    <option value="tenant-support">Tenant Support</option>
  </select>
</form>

Below is the Query Code :

<table class="dataTable">
    <tr>
      <th>Name</th>
      <th>Location</th>
      <th>Website</th>
      <th>Service(s)</th>
    </tr>
    <?php $service_query = new WP_Query('post_type=ptype_service&posts_per_page=-1'); ?>
    <?php $j = 0 ?>
    <?php while ($service_query->have_posts()) : $service_query->the_post(); ?>
    <?php $additional_class = (++$j % 2 == 0) ? 'even' : 'odd'; ?>
    <tr class="<?php echo $additional_class ?>">
      <td><?php the_title()?></td>
      <td><?php echo (get_post_meta($post->ID, 'pir_groups_location', true))?></td>
      <td><a target="_blank" href="http://<?php echo (get_post_meta($post->ID, 'pir_groups_website', true))?>"><?php echo (get_post_meta($post->ID, 'pir_groups_website', true))?></a></td>
      <td>
        <?php
        $terms = get_the_terms( $post->ID, 'services' );
        if ( $terms && ! is_wp_error( $terms ) ) :      
            $services_links = array();  
            foreach ( $terms as $term ) {
                $services_links[] = $term->name;
            }                               
            $on_draught = join( ", ", $services_links );
        ?>
        <?php echo $on_draught; ?>
        <?php endif; ?>
      </td>
    </tr>
    <?php endwhile; ?>
  </table>

Regards

解决方案

Found Solution myself :)

Just Changed the form action and its working fine now :

<form method="post" action="<?php the_permalink()?>">
  <select name="services" id="selectservice" class="postform" onchange="submit();">
    <option value="">All Services</option>
    <?php
        $terms = get_terms('services');
            if ( $terms ) {
                foreach ( $terms as $term ) {?>
    <option <?php if($term->slug == $_POST['services']){ echo 'selected="selected"';} ?> value="<?php echo esc_attr( $term->slug )?>"><?php echo esc_html( $term->name ) ?></option>
    <?php }
            }
    ?>
  </select>
</form>

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