<?php
/**
 * Template Name: Single Rooms Template
 *
 * Front Page.
 */

get_header(); ?>

<?php
    global $post;
    $slug = get_post( $post )->post_name; /*sets the SLUG Variable, which will be matched with the attachment's meta*/
    $args = array( 'post_type' => 'attachment', 'posts_per_page' => 10 );
    $loop = new WP_Query( $args );
?>

<h1>PAGE NAME = <?php echo $slug; ?></h1>

    <div id="primary" class="content-area">
        <div id="content" class="site-content" role="main">


        <?php while ( $loop->have_posts() ) : $loop->the_post(); ?>

        <?php
            $room = get_post_meta($post->ID, '_room', true);

            if ($room == $slug) {
                echo '<img src="'the_thumbnail('Large List')'" />'
                }
        ?>

        <?php endwhile; /* end of the loop.*/ ?>

        </div><!-- #content -->
    </div><!-- #primary -->
<?php get_footer(); ?>