Fixed: FS#1010 - Delete Reseller -> Customers messed up

interface/web/client/lib/lang/en.lng

@@ -9,4 +9,6 @@ $wb['Edit Client-Templates'] = 'Edit Client-Templates';
 $wb['Add Reseller'] = 'Add Reseller';
 $wb['Edit Reseller'] = 'Edit Reseller';
 $wb['Resellers'] = 'Resellers';
+$wb["error_has_clients"] = 'This reseller has clients. Delete the clients of the reseller first.';
+
 ?>
\ No newline at end of file

interface/web/client/reseller_del.php

@@ -51,6 +51,17 @@ $app->uses('tpl,tform');
 $app->load('tform_actions');
 
 class page_action extends tform_actions {
+	
+	function onBeforeDelete() {
+		global $app, $conf;
+		
+		$client_id = intval($this->dataRecord['client_id']);
+		
+		$tmp = $app->db->queryOneRecord("SELECT count(client_id) as number FROM client WHERE parent_client_id = ".$client_id);
+		if($tmp["number"] > 0) $app->error($app->lng('error_has_clients'));
+		
+	}
+	
 	function onAfterDelete() {
 		global $app, $conf;