begin
relation = Relation.find(params[:id])
new_relation = Relation.from_xml(request.raw_post)
+ if new_relation.version != relation.version
+ render :text => "Version mismatch: Provided " + new_relation.version.to_s + ", server had: " + relation.version.to_s, :status => :bad_request
+ return
+ end
if new_relation and new_relation.id == relation.id
relation.update_from new_relation, user
render :nothing => true, :status => :not_found
rescue OSM::APIPreconditionFailedError
render :text => "", :status => :precondition_failed
+ rescue OSM::APIVersionMismatchError => ex
+ render :text => "Version mismatch: Provided " + ex.provided.to_s +
+ ", server had: " + ex.latest.to_s, :status => :bad_request
rescue
render :nothing => true, :status => :internal_server_error
end