2 class RelationsController < ApiController
5 before_action :authorize, :only => [:create, :update, :delete]
9 before_action :require_public_data, :only => [:create, :update, :delete]
10 before_action :check_api_writable, :only => [:create, :update, :delete]
11 before_action :check_api_readable, :except => [:create, :update, :delete]
12 around_action :api_call_handle_error, :api_call_timeout
17 relation = Relation.from_xml(request.raw_post, true)
19 # Assume that Relation.from_xml has thrown an exception if there is an error parsing the xml
20 relation.create_with_history current_user
21 render :plain => relation.id.to_s
25 @relation = Relation.find(params[:id])
26 response.last_modified = @relation.timestamp
29 respond_to do |format|
38 logger.debug request.raw_post
40 relation = Relation.find(params[:id])
41 new_relation = Relation.from_xml(request.raw_post)
43 raise OSM::APIBadUserInput, "The id in the url (#{relation.id}) is not the same as provided in the xml (#{new_relation.id})" unless new_relation && new_relation.id == relation.id
45 relation.update_from new_relation, current_user
46 render :plain => relation.version.to_s
50 relation = Relation.find(params[:id])
51 new_relation = Relation.from_xml(request.raw_post)
52 if new_relation && new_relation.id == relation.id
53 relation.delete_with_history!(new_relation, current_user)
54 render :plain => relation.version.to_s
60 # -----------------------------------------------------------------
63 # input parameters: id
65 # returns XML representation of one relation object plus all its
66 # members, plus all nodes part of member ways
67 # -----------------------------------------------------------------
69 relation = Relation.find(params[:id])
73 # first find the ids of nodes, ways and relations referenced by this
74 # relation - note that we exclude this relation just in case.
76 node_ids = relation.members.select { |m| m[0] == "Node" }.map { |m| m[1] }
77 way_ids = relation.members.select { |m| m[0] == "Way" }.map { |m| m[1] }
78 relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.map { |m| m[1] }
80 # next load the relations and the ways.
82 relations = Relation.where(:id => relation_ids).includes(:relation_tags)
83 ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags)
85 # now additionally collect nodes referenced by ways. Note how we
86 # recursively evaluate ways but NOT relations.
88 way_node_ids = ways.collect do |way|
89 way.way_nodes.collect(&:node_id)
91 node_ids += way_node_ids.flatten
92 nodes = Node.where(:id => node_ids.uniq).includes(:node_tags)
98 next unless node.visible? # should be unnecessary if data is consistent.
101 visible_nodes[node.id] = node
106 next unless way.visible? # should be unnecessary if data is consistent.
112 relations.each do |rel|
113 next unless rel.visible? # should be unnecessary if data is consistent.
119 @relations << relation
122 respond_to do |format|
131 raise OSM::APIBadUserInput, "The parameter relations is required, and must be of the form relations=id[,id[,id...]]" unless params["relations"]
133 ids = params["relations"].split(",").collect(&:to_i)
135 raise OSM::APIBadUserInput, "No relations were given to search for" if ids.empty?
137 @relations = Relation.find(ids)
140 respond_to do |format|
145 def relations_for_way
146 relations_for_object("Way")
149 def relations_for_node
150 relations_for_object("Node")
153 def relations_for_relation
154 relations_for_object("Relation")
159 def relations_for_object(objtype)
160 relationids = RelationMember.where(:member_type => objtype, :member_id => params[:id]).collect(&:relation_id).uniq
164 Relation.find(relationids).each do |relation|
165 @relations << relation if relation.visible
169 respond_to do |format|