continue working on selftest

www/internals/modules/updateslog.php

@@ -1,6 +1,6 @@
 <?php
 
-class UpdatesLog
+class UpdatesLog implements IWebsiteModule
 {
 	/** @var Website */
 	private $site;
@@ -61,4 +61,20 @@ class UpdatesLog
 				[':lt', $limit,   PDO::PARAM_INT],
 			]);
 	}
+
+	public function checkConsistency()
+	{
+		$warn = null;
+
+		$this->load();
+
+		foreach ($this->staticData as $name => $data)
+		{
+			if (!key_exists('version', $data)) return ['result'=>'err', 'message' => 'Missing value [version]'];
+			if (!key_exists('url', $data)) return ['result'=>'err', 'message' => 'Missing value [url]'];
+		}
+
+		if ($warn != null) return $warn;
+		return ['result'=>'ok', 'message' => ''];
+	}
 }