Course catalog using table loop for Genesis

archive-courses.php

<?php

// replace the usual post listing with directory table
remove_action( 'genesis_loop', 'genesis_do_loop' );
add_action( 'genesis_loop', 'scl_course_table_loop', 10 );


function scl_course_table_loop() {
	if ( have_posts() ) :

		do_action( 'genesis_before_while' );
		
		$headers = array( esc_html__('Course'), esc_html__('Number'), esc_html__('Instructor(s)'), esc_html__('Time') );
			
		echo scl_loop_table_headers( $headers );
	
		while ( have_posts() ) : the_post();
		
			$data = array( 
				sprintf( '<a href="%s" title="%s">%s</a>', esc_url( get_permalink() ), the_title_attribute( 'echo=0' ), get_the_title() ),
				get_field( 'course_number' ),
				get_field( 'instructors' )		
			);
			if ( count( $havetimes ) )
				$data[] = get_field( 'times' );
			
			echo scl_loop_table_cells( array_combine( $headers, $data ) );
			
		endwhile; //* end of one post
		
		scl_loop_table_footer();
		
		do_action( 'genesis_after_endwhile' );

	else : //* if no posts exist
		do_action( 'genesis_loop_else' );
	endif; //* end loop
}

// Table loops

function scl_loop_table_headers( $headers ) {
	$headerrow = '';
	foreach ( $headers as $header ) {
		$headerrow .= sprintf( "<th>%s</th>\n", $header );
	}
	
	return sprintf( '<div class="loop"><table cellspacing="0" class="responsive">
		<thead>
			<tr>
		      %s
		    </tr>
		</thead>
		<tbody>'."\n", $headerrow );
}

function scl_loop_table_cells( $data ) {
	$datarow = '';
	$rowindex = 1;
	foreach ( $data as $title => $field ) {
		$class = '';
		if ( empty( trim ( $field ) ) )
			$class = ' class="empty"';
		$tag = 'td';
		if ( 1 == $rowindex )
			$tag = 'th';
		$datarow .= sprintf( '<%s title="%s" %s>%s</%1$s>'."\n", $tag, $title, $class, $field );
		$rowindex++;
	}
	
	return sprintf( "<tr id='post-%d' %s>\n %s \n </tr>\n", get_the_ID(), genesis_attr( 'entry' ), $datarow );
}

function scl_loop_table_footer() {
	return "</tbody>\n </table>\n</div><!-- .loop -->\n";
}

genesis();