Merge pull request #4621 from annando/not-null

Avoid storing "null" values

src/Protocol/DFRN.php

@@ -2079,8 +2079,8 @@ class DFRN
 				return false;
 			}
 
-			$fields = ['title' => $item["title"], 'body' => $item["body"],
-					'tag' => $item["tag"], 'changed' => DateTimeFormat::utcNow(),
+			$fields = ['title' => defaults($item, 'title', ''), 'body' => defaults($item, 'body', ''),
+					'tag' => defaults($item, 'tag', ''), 'changed' => DateTimeFormat::utcNow(),
 					'edited' => DateTimeFormat::utc($item["edited"])];
 
 			$condition = ["`uri` = ? AND `uid` IN (0, ?)", $item["uri"], $importer["importer_uid"]];

src/Protocol/PortableContact.php

@@ -1302,7 +1302,7 @@ class PortableContact
 				if (isset($data->version)) {
 					$network = NETWORK_DFRN;
 
-					$noscrape = $data->no_scrape_url;
+					$noscrape = defaults($data->no_scrape_url, '');
 					$version = $data->version;
 					$site_name = $data->site_name;
 					$info = $data->info;