Two Nested Loops

Hi there,

I’d be most grateful to anyone that can shed any light on this – I’ve studied the documentation and I can’t see why this doesn’t work.

I’m trying to create a navigation list which will look something like this:

<ul>
  <li>
    <ul>
      <li></li>
      <li></li>
      <li></li>
    </ul>
    <ul>
      <li></li>
      <li></li>
      <li></li>
    </ul>
  </li>
  <li>
    <ul>
      <li></li>
      <li></li>
      <li></li>
    </ul>
    <ul>
      <li></li>
      <li></li>
      <li></li>
    </ul>
  </li>
 </ul>

It requires 3 loops: a country loop, and then within that a city loop and a town loop (to list cities and towns within a country).

I’m using the following code:

<ul>

<?php
	# GET Countries
	 $countryArgs = array(
	   'category_name' => 'country',
	   'posts_per_page' => -1,
	   'meta_key' => 'country-menu-order',
	   'orderby' => 'meta_value_num',
	   'order' => 'ASC'
	 );
  	$sidebar_nav_loop = new WP_Query($countryArgs);

  	if( $sidebar_nav_loop->have_posts() ):

  		while( $sidebar_nav_loop->have_posts() ): $sidebar_nav_loop->the_post();

		?>

             <li class="<?php echo basename(get_permalink()); ?>"> <a href="<?php echo get_permalink(); ?>"> <?php the_title(); ?> </a>

			 <?php
             # GET RELATED Cities
             $cityArgs = array(
                            'post_type' 		=> 'post',
                            'posts_per_page' 	=> -1,
                            'meta_key'			=> 'city-group',
                            'orderby'			=> 'meta_value_num',
                            'order'			 	=> 'ASC',
                            'meta_query' 		=> array(
                                array(
                                    'key' 		=> 'city-country',
                                    'value' 	=> '"' . get_the_ID() . '"',
                                    'compare' 	=> 'LIKE'
                                )
                            )
                        );
            $city_loop = new WP_Query($cityArgs);

            if( $city_loop->have_posts() ):

            ?>

                <ul>
                <li><a href="<?php the_permalink(); ?>" class="sub"><?php the_title(); ?></a></li>

                <?php

					while( $city_loop->have_posts() ): $city_loop->the_post(); ?>
						<li>
						  <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
						</li>
					<?php
					endwhile;

                 echo "</ul>";

			 endif;
			 wp_reset_postdata();

			?>

            <?php
 		 	 # GET RELATED towns
			 $townArgs = array(
							'post_type' => 'post',
							'posts_per_page' => -1,
							'meta_key'		 => 'town-group',
							'orderby'		 => 'meta_value_num',
							'order'			 => 'ASC',
							'meta_query' => array(
								array(
									'key' => 'town-country',
									'value' => '"' . get_the_ID() . '"',
									'compare' => 'LIKE'
								)
							)
						);
			$town_loop = new WP_Query($townArgs);

			if( $town_loop->have_posts() ):

			?>
            <ul>
            <li><a href="<?php the_permalink(); ?>" class="sub"><?php the_title(); ?></a></li>
            <?php
            while( $town_loop->have_posts() ): $town_loop->the_post(); ?>
            	<li>
                  <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
            	</li>
 			<?php
			 endwhile;

			 echo "</ul>";

			 endif;
			 wp_reset_postdata();

			?>

            </li>

            <?php
	  endwhile;
	  endif;
	  wp_reset_postdata();
?>

</ul>

I can get the country and city to work, or the country and town, but I can’t get all three! To the best of my knowledge I’ve followed the documentation and reset the queries so they shouldn’t conflict.

Many thanks in advance for any help!