1 # The ChangesetController is the RESTful interface to Changeset objects
3 class ChangesetController < ApplicationController
6 before_filter :authorize, :only => [:create, :update, :delete, :upload]
7 before_filter :check_write_availability, :only => [:create, :update, :delete, :upload]
8 before_filter :check_read_availability, :except => [:create, :update, :delete, :upload]
9 after_filter :compress_output
11 # Create a changeset from XML.
14 cs = Changeset.from_xml(request.raw_post, true)
19 render :text => cs.id.to_s, :content_type => "text/plain"
21 render :nothing => true, :status => :bad_request
24 render :nothing => true, :status => :method_not_allowed
28 def create_prim(ids, prim, nd)
30 prim.user_id = @user.id
32 prim.save_with_history!
34 ids[nd['id'].to_i] = prim.id
37 def fix_way(w, node_ids)
38 w.nds = w.instance_eval { @nds }.
39 map { |nd| node_ids[nd] || nd }
44 r.members = r.instance_eval { @members }.
45 map { |memb| [memb[0], ids[memb[0]][memb[1].to_i] || memb[1], memb[2]] }
51 render :nothing => true, :status => :method_not_allowed
55 # FIXME: this should really be done without loading the whole XML file
58 p.string = request.raw_post
61 node_ids, way_ids, rel_ids = {}, {}, {}
62 ids = {"node"=>node_ids, "way"=>way_ids, "relation"=>rel_ids}
64 Changeset.transaction do
65 doc.find('//osm/create/node').each do |nd|
66 create_prim node_ids, Node.from_xml_node(nd, true), nd
68 doc.find('//osm/create/way').each do |nd|
69 way = Way.from_xml_node(nd, true)
70 fix_way(way, node_ids)
71 raise OSM::APIPreconditionFailedError.new if !way.preconditions_ok?
72 create_prim way_ids, way, nd
74 doc.find('//osm/create/relation').each do |nd|
75 relation = Relation.from_xml_node(nd, true)
76 fix_rel(relation, ids)
77 raise OSM::APIPreconditionFailedError.new if !relation.preconditions_ok?
78 create_prim rel_ids, relation, nd
81 doc.find('//osm/modify/relation').each do |nd|
82 new_relation = Relation.from_xml_node(nd)
83 Relation.find(new_relation.id).update_from new_relation, @user
85 doc.find('//osm/modify/way').each do |nd|
86 new_way = Way.from_xml_node(nd)
87 Way.find(new_way.id).update_from new_way, @user
89 doc.find('//osm/modify/node').each do |nd|
90 new_node = Node.from_xml_node(nd)
91 Node.find(new_node.id).update_from new_node, @user
94 doc.find('//osm/delete/relation').each do |nd|
95 Relation.find(nd['id']).delete_with_history(@user)
97 doc.find('//osm/delete/way').each do |nd|
98 Way.find(nd['id']).delete_with_relations_and_history(@user)
100 doc.find('//osm/delete/node').each do |nd|
101 Node.find(nd['id']).delete_with_history(@user)
105 render :text => "Ok, Fine. Upload worked without errors.\n", :status => 200