List all posts in custom post type by taxonomy

5 comments

1. Try this

   $custom_terms = get_terms('custom_taxonomy');
   
   foreach($custom_terms as $custom_term) {
       wp_reset_query();
       $args = array('post_type' => 'custom_post_type',
           'tax_query' => array(
               array(
                   'taxonomy' => 'custom_taxonomy',
                   'field' => 'slug',
                   'terms' => $custom_term->slug,
               ),
           ),
        );
   
        $loop = new WP_Query($args);
        if($loop->have_posts()) {
           echo '<h2>'.$custom_term->name.'</h2>';
   
           while($loop->have_posts()) : $loop->the_post();
               echo '<a href="'.get_permalink().'">'.get_the_title().'</a><br>';
           endwhile;
        }
   }
   

   We get all the terms of a taxonomy, loop through them, and fire off a title link to each post that belongs to that term. If you need to reorder the taxonomy terms, you can do so with a plugin pretty easily. Reorder Taxonomy, I believe. But pay attention that this plugin adds(!) another column to your table on activation and does not remove it upon deactivation!

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2. Not a particularly elegant solution but you can create multiple queries each for the specific terms and then output them. Hopefully someone can come up with a nicer way of automatically pulling the terms to modify the output/sorting. But this would get you going.

   <?php
   
   //First Query for Posts matching term1
   $args = array(
       'tax_query' => array(
           array(
               'taxonomy' => 'taxonomy_1',
               'field' => 'slug',
               'terms' => array( 'term1' )
           ),
       ),
       'post_type' => 'my-post-type'
   );
   $query = new WP_Query( $args );
   
   if ( have_posts() ) {
   
       $term = $query->queried_object;
   
       echo 'All posts found in ' . $term->name;
   
       while ( have_posts() ) : the_post();
           //Output what you want
           the_title();
           the_content();
       endwhile;
   }
   
   //RESET YOUR QUERY VARS
   wp_reset_query();
   
   //Second Query for term2
   $args = array(
       'tax_query' => array(
           array(
               'taxonomy' => 'taxonomy_1',
               'field' => 'slug',
               'terms' => array( 'term2' )
           ),
       ),
       'post_type' => 'my-post-type'
   );
   $query = new WP_Query( $args );
   
   if ( have_posts() ) {
   
       $term = $query->queried_object;
   
       echo 'All posts found in ' . $term->name;
   
       while ( have_posts() ) : the_post();
           //Output what you want
           the_title();
           the_content();
       endwhile;
   }
   

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3. Nice one! GhostOne’s solution was what I had been looking for.
   In my situation the custom post type was ‘minining_accidents’ and custom taxonomies associated with this was ‘accident-types’ which had multiple terms under it. My idea was to create a custom widget to show list of posts under terms in this custom taxonomies. In my trial run it got what I wanted. Rest was spruce up. Here is my code:

   function fn_get_list_of_mining_accident_types()
   {
       $custom_taxonomy='accident-types';  
       $custom_terms = get_terms($custom_taxonomy);    
       $str_return='<ul>';
       foreach($custom_terms as $custom_term) 
       {
           wp_reset_query();
           $args = array(
               'post_type' => 'minining_accidents',
               'tax_query' => array(               
                   array(
                       'taxonomy' => $custom_taxonomy,
                       'field' => 'slug',
                       'terms' => $custom_term->slug,
                   ),
               ),
           );  
   
           $loop = new WP_Query($args);
   
           $term_name=$custom_term->name;
           $term_slug=$custom_term->slug;
           $term_link=get_term_link($term_slug, $custom_taxonomy);
   
           $str_return.='<li><a href="'.$term_link.'">'.$term_name.'</a>';
   
           if($loop->have_posts()) 
           {
               $str_return.='<ol>';
   
               while($loop->have_posts()) : $loop->the_post();
                   $str_return.='<li><a href="'.get_permalink().'">'.get_the_title().'</a></li> ';
               endwhile;
   
               $str_return.='</ol>';           
            }
            $str_return.='</li>';
       }
       $str_return.='</ul>';
       return $str_return;
   }
   

   Yes! There always is an option to further improve the code.

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4. This is long solution i tried before coming to this thread. Hope this may help someone to understand better.

           <?php
       // Get list of all taxonomy terms  -- In simple categories title
       $args = array(
                   'taxonomy' => 'project_category',
                   'orderby' => 'name',
                   'order'   => 'ASC'
               );
       $cats = get_categories($args);
   
       // For every Terms of custom taxonomy get their posts by term_id
       foreach($cats as $cat) {
           ?>
           <a href="<?php echo get_category_link( $cat->term_id ) ?>">
               <?php echo $cat->name; ?> <br>
               <?php // echo $cat->term_id; ?> <br>
           </a>
   
   
               <?php
                   // Query Arguments
                   $args = array(
                       'post_type' => 'portfolio', // the post type
                       'tax_query' => array(
                           array(
                               'taxonomy' => 'project_category', // the custom vocabulary
                               'field'    => 'term_id',          // term_id, slug or name  (Define by what you want to search the below term)    
                               'terms'    => $cat->term_id,      // provide the term slugs
                           ),
                       ),
                   );
   
                   // The query
                   $the_query = new WP_Query( $args );
   
                   // The Loop
                   if ( $the_query->have_posts() ) {
                       echo '<h2> List of posts tagged with this tag </h2>';
   
                       echo '<ul>';
                       $html_list_items = '';
                       while ( $the_query->have_posts() ) {
                           $the_query->the_post();
                           $html_list_items .= '<li>';
                           $html_list_items .= '<a href="' . get_permalink() . '">';
                           $html_list_items .= get_the_title();
                           $html_list_items .= '</a>';
                           $html_list_items .= '</li>';
                       }
                       echo $html_list_items;
                       echo '</ul>';
   
                   } else {
                       // no posts found
                   }
   
                   wp_reset_postdata(); // reset global $post;
   
                   ?>
   
       <?php } ?>
   

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5. To show a list of custom posts from a custom taxonomy

   $args = array(
       'tax_query' => array(
           array(
               'taxonomy' => 'your-custom-taxonomy',
               'field' => 'slug',
               'terms' => array( 'your-term' )
           ),
       ),
       'post_type' => 'your-post-type'
   );
   $loop = new WP_Query($args);
        if($loop->have_posts()) {
       $term = $wp_query->queried_object;
        while($loop->have_posts()) : $loop->the_post();
           //Output what you want      
      echo '<li><a href="'.get_permalink().'">'.get_the_title().'</a></li>';
         endwhile;
   }
   

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