archive-knowledgebase.php

<?php
	
/**
 * Template for ClickWP knowledgebase post type
 * @since 3.0.5
 */

/**
 * TODO
 * 1. Popular posts section - KB articles tagged 'popular'
 * 2. Order posts in category by popularity - how?
 * 3. Add taxonomy to post class for styling hooks - http://stackoverflow.com/a/18069231
 */

//* Force full width content layout to remove sidebar
add_filter( 'genesis_pre_get_option_site_layout', '__genesis_return_full_width_content' );

//* Add custom body class to the head
add_filter( 'body_class', 'click_kb_archive_body_class' );
function click_kb_archive_body_class( $classes ) {
	$classes[] = 'kb-archive';
	return $classes;
}

//* Ensure flat page header (remove angle header classes)
add_filter( 'body_class', 'click_kb_archive_body_class_page_header', 10, 2 );
function click_kb_archive_body_class_page_header( $wp_classes, $extra_classes ) {

    // List the classes to be removed
    $blacklist = array( 'header-angle-left', 'header-angle-right' );

    // Filter the body classes
    $wp_classes = array_diff( $wp_classes, $blacklist );

    // Add the classes back
    return array_merge( $wp_classes, (array) $extra_classes );
}

//* Output page header

add_action( 'clickwp_page_header', 'clickwp_kb_page_header_content' );

function clickwp_kb_page_header_content() {
	genesis_markup( array(
		'open'    => '<h1 %s>',
		'close'   => '</h1>',
		'content' => __( 'WordPress Knowledgebase', 'clickwp' ),
		'context' => 'entry-title',
	) );
}

//* Display a customized search form
add_filter( 'genesis_search_form', 'click_search_kb_only', 10, 3 );
add_action( 'clickwp_page_header', 'click_kb_search_form' );

function click_search_kb_only( $form, $search_text, $button_text ) {
	$search_text = 'Search Knowledge Base';
	$button_text = 'Go';
	$kb_search_form = '
		<form method="get" class="search-form" action="' . get_option('home') . '/" role="search">
		<input type="search" name="s" placeholder="'. $search_text .'" />
		<input type="submit" value="'. $button_text .'" />
		<input type="hidden" name="post_type" value="knowledgebase" />
		</form>
	';
	
	return $kb_search_form;	
}

function click_kb_search_form() {
	echo '<div class="kb-search">';
	get_search_form( true );
	echo '</div>';
}

//* Replace loop
remove_action( 'genesis_loop', 'genesis_do_loop' );
add_action( 'genesis_loop', 'KB_articles' );
	
function KB_articles(){
	
	$taxonomy_name = 'knowledgebase_category';
	$tax_terms = get_terms( 
		$taxonomy_name, 
		array(
			'orderby' => 'slug', 
		//	'order' => 'DESC', 
		) 
	);
?>

<ul class="kb-cats">
<?php
	
	// check if transient with page fragment exists
	// if transient doesn't exist, proceed with query
	$kb_archive_page_content = get_transient( 'click_kb_archive_content' );
	if ( false === $kb_archive_page_content ) :
	
		if( $tax_terms ) :
			
			// start the output buffer to save contents of foreach loop
			ob_start();
       
			$ctr = 0;
			
			foreach( $tax_terms as $tax_term ) :
				
				wp_reset_query();
				
				$category_link = get_term_link( $tax_term );
				$category_name = $tax_term->slug;
				
				$ctr++;
	?>
				<li><section class="kb-category">
					<h3><a href="<?php echo esc_url( $category_link ); ?>"><?php echo $tax_term->name;?> <span>&rsaquo;</span></a></h3> 
				<?php
				$args = array(
						'posts_per_page' => 5,
						'post_type' => 'knowledgebase',
						'orderby' => 'date',
						'order' =>'DESC',
						'tax_query' => array(
							array(
								'taxonomy' => $taxonomy_name,
								'field' => 'slug',
								'terms' => $category_name
							)
						)
				);
				
				$query = new WP_Query( $args );
				
				if( $query->have_posts() ) :
					echo '<ul class="no-bullet">';
					while( $query->have_posts() ) : $query->the_post();
					
						$kb_article_title = get_the_title();
				?>
						<li <?php post_class(); ?>><a href=<?php the_permalink();?>><?php echo $kb_article_title; ?></a></li>
				<?php		
					endwhile;
					echo '</ul>';
				else :
					?>
						<p>No available articles yet</p>
					<?php
				endif;
					$count = $tax_term->count;
					
					if($count != 0) :
				
				?>
						<p><a class="more-link" href="<?php echo esc_url( $category_link ); ?>">See all <?php echo $tax_term->count;?> articles</a></p>
			
				<?php
					endif;
				?>
					</section></li>
					
			<?php
			endforeach;
			
			// save the output buffer contents in a variable
            $kb_archive_page_content = ob_get_contents();
			
			// clean the buffer as we will be using the variable from now on
			ob_end_clean();
			
			// set transient to last for 12 hours
			set_transient('click_kb_archive_content', $kb_archive_page_content, 12 * HOUR_IN_SECONDS );
			
		endif;
	
	endif;
	
	// output the new created fragment if transient does not exist. 
	echo $kb_archive_page_content;
	
	echo '</ul><!-- end block grid -->';
		
}	
wp_reset_postdata();
genesis();
?>