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 res = XML::Document.new
85 res.encoding = 'UTF-8'
86 root = XML::Node.new 'osm'
87 root['version'] = '0.6'
88 root['creator'] = 'OpenStreetMap.org'
91 root << XML::Node.new_comment(" Warning: this is a 0.6 result document, " +
92 "not a normal OSM file. ")
94 Changeset.transaction do
96 break if p.node_type == 15 # end element
97 next unless p.node_type == 1 # element
102 break if p.node_type == 15 # end element
103 next unless p.node_type == 1 # element
107 elem = XML::Node.new 'node'
108 node = Node.from_xml_node(p.expand, true)
109 elem['old_id'] = p.expand['id']
110 create_prim node_ids, node, p.expand
111 elem['new_id'] = node.id.to_s
112 elem['new_version'] = node.version.to_s
115 elem = XML::Node.new 'way'
116 way = Way.from_xml_node(p.expand, true)
117 elem['old_id'] = p.expand['id']
118 fix_way(way, node_ids)
119 raise OSM::APIPreconditionFailedError.new if !way.preconditions_ok?
120 create_prim way_ids, way, p.expand
121 elem['new_id'] = way.id.to_s
122 elem['new_version'] = way.version.to_s
125 elem = XML::Node.new 'relation'
126 relation = Relation.from_xml_node(p.expand, true)
127 elem['old_id'] = p.expand['id']
128 fix_rel(relation, ids)
129 raise OSM::APIPreconditionFailedError.new if !relation.preconditions_ok?
130 create_prim rel_ids, relation, p.expand
131 elem['new_id'] = relation.id.to_s
132 elem['new_version'] = relation.version.to_s
138 break if p.node_type == 15 # end element
139 next unless p.node_type == 1 # element
143 elem = XML::Node.new 'node'
144 new_node = Node.from_xml_node(p.expand)
145 node = Node.find(new_node.id)
146 node.update_from new_node, @user
147 elem['old_id'] = elem['new_id'] = node.id.to_s
148 elem['new_version'] = node.version.to_s
151 elem = XML::Node.new 'way'
152 new_way = Way.from_xml_node(p.expand)
153 way = Way.find(new_way.id)
154 way.update_from new_way, @user
155 elem['old_id'] = elem['new_id'] = way.id.to_s
156 elem['new_version'] = way.version.to_s
159 elem = XML::Node.new 'relation'
160 new_relation = Relation.from_xml_node(p.expand)
161 relation = Relation.find(new_relation.id)
162 relation.update_from new_relation, @user
163 elem['old_id'] = elem['new_id'] = relation.id.to_s
164 elem['new_version'] = relation.version.to_s
170 break if p.node_type == 15 # end element
171 next unless p.node_type == 1 # element
175 elem = XML::Node.new 'node'
176 node = Node.find(p.expand['id'])
177 node.delete_with_history(@user)
178 elem['old_id'] = elem['new_id'] = node.id.to_s
179 elem['new_version'] = node.version.to_s
182 elem = XML::Node.new 'way'
183 way = Way.find(p.expand['id'])
184 way.delete_with_history(@user)
185 elem['old_id'] = elem['new_id'] = way.id.to_s
186 elem['new_version'] = way.version.to_s
189 elem = XML::Node.new 'relation'
190 relation = Relation.find(p.expand['id'])
191 relation.delete_with_history(@user)
192 elem['old_id'] = elem['new_id'] = relation.id.to_s
193 elem['new_version'] = relation.version.to_s
201 render :text => res.to_s, :content_type => "text/xml"
203 rescue OSM::APIError => ex
204 render ex.render_opts