virusvisal

Who me? No, it was probably someone else O=.
I was looking if someone had made it and found this thread, so I did it myself and thought it would be nice to share.

Hi there!! I too have a very basic knowledge of php, but managed to customize Frumph’s code. I see you did get your thumbnail archive with a script but since this is the most recent post on the matter I thought it would be nice to share what I did.

The shortcode I modified works with the following shortcode:
[thumb-comic-archive chapter=#]

You can leave out the chapter and it will display all comics. I just managed to make it work on those 2 modes.

I have a functions.php file on my child theme with the following code:

<?php

/* Short Codes go Here */
add_shortcode('thumb-comic-archive', 'ceo_archive_list_thumb');

function ceo_archive_list_thumb(  $atts, $content = '' ) {
	extract( shortcode_atts( array(
					'list' => 0,
					'style' => 0,
					'chapter' => 0,
					'thumbnail' => 0,
					'order' => 'ASC'
					), $atts ) );
	$output = '';
	switch ($list) {
		case 4:
			$output = ceo_archive_list_by_chapter_thumb($order);
			break;
		case 0:
		default:
			if ($chapter) {
				$output = ceo_archive_list_single_thumb($chapter, $order, $thumbnail);
			} else {
				$output = ceo_archive_list_all_thumb($order, $thumbnail);
			}
			break;
	}
	wp_reset_postdata();
	return $output;
}
// Case 0
function ceo_archive_list_single_thumb($chapter = 0, $order = 'ASC', $thumbnail = 0) {
	$output = '';
	// get chapter from ID#
	$single_chapter = get_term_by('term_id', $chapter, 'chapters');
	if (is_null($single_chapter)) { echo "Invalid Chapter Specified"; return; }
	$output .= '<div class="comic-archive-chapter-wrap">';
	$args = array(
			'numberposts' => -1,
			'post_type' => 'comic',
			'orderby' => 'post_date',
			'order' => $order,
			'post_status' => 'publish',
			'chapters' => $single_chapter->slug
			);
	$qposts = get_posts( $args );
	$archive_count = 0;
	if ($thumbnail) {
		$output .= '<div class="comic-archive-thumbnail">'.get_the_post_thumbnail($qposts[0]->ID, 'thumbnail').'</div>';
	}
	$output .= '<div class="comic-archive-list-wrap">';
	$css_alt = false;
	foreach ($qposts as $qpost) {
		$archive_count++;
		if ($css_alt) { $alternate = ' comic-list-alt'; $css_alt = false; } else { $alternate = ''; $css_alt=true; }
		$output .= '<div class="comic-list comic-list-thumb comic-list-'.$archive_count.$alternate.'"><span class="comic-archive-title"><a href="'.get_permalink($qpost->ID).'" rel="bookmark" title="'.__('Permanent Link:','comiceasel').' '.$qpost->post_title.'">'.get_the_post_thumbnail( $qpost->ID, 'thumbnail' ).'</a></span></div>';
	}
	$output .= '</div>';
	$output .= '<div style="clear:both;"></div></div>';
	return $output;
}
// Case 0 Else
function ceo_archive_list_all_thumb($order = 'ASC', $thumbnail = 0) {
	$output = '';
	$main_args = array(
			'hide_empty' => true,
			'order' => $order,
			'orderby' => 'menu_order',
			'hierarchical' => 1
			);
	$all_chapters = get_terms('chapters', $main_args);
	if (is_null($all_chapters)) { echo 'There are no chapters available.'; return; }
	$output = '';
	foreach ($all_chapters as $chapter) {
		if ($chapter->count) {
			$output .= '<div class="comic-archive-chapter-wrap">'."\r\n";
			$args = array(
					'numberposts' => -1,
					'post_type' => 'comic',
					'orderby' => 'post_date',
					'order' => $order,
					'post_status' => 'publish',
					'chapters' => $chapter->slug
					);
			$qposts = get_posts( $args );
			$archive_count = 0;
			if ($thumbnail) {
				$get_thumbnail = (strtoupper($order) == 'ASC') ? get_the_post_thumbnail(reset($qposts)->ID, 'thumbnail') : get_the_post_thumbnail(end($qposts)->ID, 'thumbnail');
				$output .= '<div class="comic-archive-thumbnail">'.$get_thumbnail.'</div>'."\r\n";
			}
			$output .= '<div class="comic-archive-list-wrap">'."\r\n";
			$css_alt = false;
			foreach ($qposts as $qpost) {
				$archive_count++;
				if ($css_alt) { $alternate = ' comic-list-alt'; $css_alt = false; } else { $alternate = ''; $css_alt=true; }
				$output .= '<div class="comic-list comic-list-thumb comic-list-'.$archive_count.$alternate.'"><span class="comic-archive-title"><a href="'.get_permalink($qpost->ID).'" rel="bookmark" title="'.__('Permanent Link:','comiceasel').' '.$qpost->post_title.'">'.get_the_post_thumbnail( $qpost->ID, 'thumbnail' ).'</a></span></div>'."\r\n";
			}
			$output .= '</div>'."\r\n";
			$output .= '<div style="clear:both;"></div></div>'."\r\n";
		}
		$qposts = null;
	}
	return $output;
}
// Case 4
function ceo_archive_list_by_chapter_thumb($order = 'ASC', $showtitle = false) {
	$output = '';
	$archive_count = 0;
	$args = array(
			'pad_counts' => 0,
			'order' => $order,
			'hide_empty' => 1,
			'orderby' => 'menu_order'
			);
	$chapters = get_terms('chapters', $args);
	if (is_array($chapters) && !is_wp_error($chapters)) {
		$output .= '<div class="comic-archive-list-4">';
		foreach($chapters as $chapter) {
			$qcposts = null;
			if (!empty($chapter->menu_order)) {
				$child_args = array(
						'numberposts' => 1,
						'post_type' => 'comic',
						'orderby' => 'post_date',
						'order' => 'ASC',
						'post_status' => 'publish',
						'chapters' => $chapter->slug
						);
				$qcposts = get_posts( $child_args );
				$qcposts = reset($qcposts);
				if (has_post_thumbnail($qcposts->ID)) {
					$output .= '<div class="comic-archive-thumbnail"><a href="'.get_permalink($qcposts).'">'.get_the_post_thumbnail($qcposts->ID, 'thumbnail').'</a></div>';
				} else $output .= __('No Thumbnail Found', 'comiceasel');
			}
		}
		$output .= '<div class="clear"></div></div>';
		return $output;
	}
}

?>

This will show a list of thumbs as links with no more info.
Again, this is just Frumph’s code a little bit messed with so it would show every comic page’s thumbnail, so credit goes to him for having such a great tool for comics. The functions names are changed so it doesn’t interfere with easel’s original code.
I hope this helps someone in the future =).