additional measurements for catalog, so it does not throw errors; should fix vichan-devel#84

templates/themes/catalog/theme.php

@@ -49,9 +49,10 @@
 					$post['youtube'] = $matches[2];
 				}				
 
-				if (isset($post['files'])) {
+				if (isset($post['files']) && $post['files']) {
 					$files = json_decode($post['files']);
 
+					if ($files[0]) {
 						if ($files[0]->file == 'deleted') {
 							if (count($files) > 1) {
 								foreach ($files as $file) {
@@ -72,6 +73,7 @@
 							$post['file'] = $config['uri_thumb'] . $files[0]->thumb;
 						}
 					}
+				}
 
 				if (empty($post['image_count'])) $post['image_count'] = 0;
 				$recent_posts[] = $post;