X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/e8c7543bdd5001a69491b8119e793d6c889fe468..9ff7ea8d71dedb5b29f6ff0b007568b3e699b196:/app/models/way.rb

diff --git a/app/models/way.rb b/app/models/way.rb
index e134d697d..cbbe6ada4 100644
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -199,8 +199,8 @@ class Way < ActiveRecord::Base
 
   def update_from(new_way, user)
     check_consistency(self, new_way, user)
-    if !new_way.preconditions_ok?
-      raise OSM::APIPreconditionFailedError.new
+    unless new_way.preconditions_ok?
+      raise OSM::APIPreconditionFailedError("Cannot update way #{self.id}: data is invalid.")
     end
 
     self.changeset_id = new_way.changeset_id
@@ -213,8 +213,8 @@ class Way < ActiveRecord::Base
 
   def create_with_history(user)
     check_create_consistency(self, user)
-    if !self.preconditions_ok?
-      raise OSM::APIPreconditionFailedError.new
+    unless self.preconditions_ok?
+      raise OSM::APIPreconditionFailedError("Cannot create way: data is invalid.")
     end
     self.version = 0
     self.visible = true