1 module ConsistencyValidations
2 # Generic checks that are run for the updates and deletes of
3 # node, ways and relations. This code is here to avoid duplication,
4 # and allow the extention of the checks without having to modify the
5 # code in 6 places for all the updates and deletes. Some of these tests are
6 # needed for creates, but are currently not run :-(
7 # This will throw an exception if there is an inconsistency
8 def check_consistency(old, new, user)
9 if new.id != old.id or new.id.nil? or old.id.nil?
10 raise OSM::APIPreconditionFailedError.new("New and old IDs don't match on #{new.class.to_s}. #{new.id} != #{old.id}.")
11 elsif new.version != old.version
12 raise OSM::APIVersionMismatchError.new(new.id, new.class.to_s, new.version, old.version)
13 elsif new.changeset.nil?
14 raise OSM::APIChangesetMissingError.new
15 elsif new.changeset.user_id != user.id
16 raise OSM::APIUserChangesetMismatchError.new
17 elsif not new.changeset.is_open?
18 raise OSM::APIChangesetAlreadyClosedError.new(new.changeset)
22 # This is similar to above, just some validations don't apply
23 def check_create_consistency(new, user)
25 raise OSM::APIChangesetMissingError.new
26 elsif new.changeset.user_id != user.id
27 raise OSM::APIUserChangesetMismatchError.new
28 elsif not new.changeset.is_open?
29 raise OSM::APIChangesetAlreadyClosedError.new(new.changeset)
34 # subset of consistency checks which should be applied to almost
35 # all the changeset controller's writable methods.
36 def check_changeset_consistency(changeset, user)
37 # check user credentials - only the user who opened a changeset
40 raise OSM::APIChangesetMissingError.new
41 elsif user.id != changeset.user_id
42 raise OSM::APIUserChangesetMismatchError.new
43 elsif not changeset.is_open?
44 raise OSM::APIChangesetAlreadyClosedError.new(changeset)