moving the conistency checks for updates and deletes to library, hopefully got the...

[rails.git] / lib / geo_record.rb

diff --git a/lib/geo_record.rb b/lib/geo_record.rb
index 2740eab0c5472da4c76d95128c5f8253dd440cbb..3eab72b2d91c574b1be59db17b318906e2c101c7 100644 (file)
--- a/lib/geo_record.rb
+++ b/lib/geo_record.rb
@@ -42,6 +42,19 @@ module GeoRecord
     return self.longitude.to_f / SCALE
   end
 
+  # Generic checks that are run for the updates and deletes of
+  # node, ways and relations. This code is here to avoid duplication, 
+  # and allow the extention of the checks without having to modify the
+  # code in 6 places. This will throw an exception if there is an inconsistency
+  def check_consistency(old, new, user)
+    if new.version != old.version
+      raise OSM::APIVersionMismatchError.new(new.version, old.version)
+    elsif new.changeset.user_id != user.id
+      raise OSM::APIUserChangesetMismatchError.new
+    elsif not new.changeset.is_open?
+      raise OSM::APIChangesetAlreadyClosedError.new
+    end
+  end
 private
   
   def lat2y(a)