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 changeset = Changeset.find(params[:id])
52 render :text => changeset.to_xml.to_s, :content_type => "text/xml"
53 rescue ActiveRecord::RecordNotFound
54 render :nothing => true, :status => :not_found
61 render :nothing => true, :status => :method_not_allowed
64 changeset = Changeset.find(params[:id])
65 changeset.open = false
67 render :nothing => true
68 rescue ActiveRecord::RecordNotFound
69 render :nothing => true, :status => :not_found
75 render :nothing => true, :status => :method_not_allowed
79 p = XML::Reader.new request.raw_post
81 node_ids, way_ids, rel_ids = {}, {}, {}
82 ids = {"node"=>node_ids, "way"=>way_ids, "relation"=>rel_ids}
84 models = {"node"=>Node, "way"=>Way, "relation"=>Relation}
86 res = XML::Document.new
87 res.encoding = 'UTF-8'
88 root = XML::Node.new 'osm'
89 root['version'] = '0.6'
90 root['creator'] = 'OpenStreetMap.org'
93 root << XML::Node.new_comment(" Warning: this is a 0.6 result document, " +
94 "not a normal OSM file. ")
96 Changeset.transaction do
99 break if p.node_type == 15 # end element
100 next unless p.node_type == 1 # element
105 puts "#{p.name} #{p.node_type}"
106 break if p.node_type == 15 # end element
107 next unless p.node_type == 1 # element
109 model = models[p.name]
112 elem = XML::Node.new p.name
113 nd = p.expand; p.next
114 osm = model.from_xml_node(nd, true)
115 elem['old_id'] = nd['id']
119 fix_way(osm, node_ids)
120 raise OSM::APIPreconditionFailedError.new if !osm.preconditions_ok?
123 raise OSM::APIPreconditionFailedError.new if !osm.preconditions_ok?
126 create_prim ids[nd.name], osm, nd
127 elem['new_id'] = osm.id.to_s
128 elem['new_version'] = osm.version.to_s
133 break if p.node_type == 15 # end element
134 next unless p.node_type == 1 # element
136 model = models[p.name]
139 elem = XML::Node.new p.name
140 new_osm = model.from_xml_node(p.expand); p.next
141 osm = model.find(new_osm.id)
142 osm.update_from new_osm, @user
143 elem['old_id'] = elem['new_id'] = osm.id.to_s
144 elem['new_version'] = osm.version.to_s
149 break if p.node_type == 15 # end element
150 next unless p.node_type == 1 # element
152 model = models[p.name]
155 elem = XML::Node.new p.name
156 osm = model.find(p.expand['id']); p.next
157 osm.delete_with_history(@user)
158 elem['old_id'] = elem['new_id'] = osm.id.to_s
159 elem['new_version'] = osm.version.to_s
166 render :text => res.to_s, :content_type => "text/xml"
168 rescue OSM::APIError => ex
169 render ex.render_opts