Only attempt to update statistics for all campaigns if there actually are any campaigns

public_html/cron.daily.php

@@ -48,9 +48,23 @@ foreach($sSubscriptions as $sSubscription)
 
 /* Now, we'll log a historical statistics snapshot for every campaign. */
 
-foreach(Campaign::CreateFromQuery("SELECT * FROM campaigns") as $sCampaign)
+try
+{
+	$sCampaigns = Campaign::CreateFromQuery("SELECT * FROM campaigns");
+	$found = true;
+}
+catch (NotFoundException $e)
+{
+	/* No campaigns are in the database yet. */
+	$found = false;
+}
+
+if($found)
 {
-	$sCampaign->UpdateStatistics();
+	foreach($sCampaigns as $sCampaign)
-	$sStatisticsEntry = $sCampaign->CreateStatisticsEntry();
+	{
-	$sStatisticsEntry->InsertIntoDatabase();
+		$sCampaign->UpdateStatistics();
+		$sStatisticsEntry = $sCampaign->CreateStatisticsEntry();
+		$sStatisticsEntry->InsertIntoDatabase();
+	}
 }