2 class RelationsController < ApplicationController
5 skip_before_action :verify_authenticity_token
6 before_action :authorize, :only => [:create, :update, :delete]
7 before_action :api_deny_access_handler
11 before_action :require_public_data, :only => [:create, :update, :delete]
12 before_action :check_api_writable, :only => [:create, :update, :delete]
13 before_action :check_api_readable, :except => [:create, :update, :delete]
14 around_action :api_call_handle_error, :api_call_timeout
19 relation = Relation.from_xml(request.raw_post, true)
21 # Assume that Relation.from_xml has thrown an exception if there is an error parsing the xml
22 relation.create_with_history current_user
23 render :plain => relation.id.to_s
27 relation = Relation.find(params[:id])
28 response.last_modified = relation.timestamp
30 render :xml => relation.to_xml.to_s
37 logger.debug request.raw_post
39 relation = Relation.find(params[:id])
40 new_relation = Relation.from_xml(request.raw_post)
42 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
44 relation.update_from new_relation, current_user
45 render :plain => relation.version.to_s
49 relation = Relation.find(params[:id])
50 new_relation = Relation.from_xml(request.raw_post)
51 if new_relation && new_relation.id == relation.id
52 relation.delete_with_history!(new_relation, current_user)
53 render :plain => relation.version.to_s
59 # -----------------------------------------------------------------
62 # input parameters: id
64 # returns XML representation of one relation object plus all its
65 # members, plus all nodes part of member ways
66 # -----------------------------------------------------------------
68 relation = Relation.find(params[:id])
72 # first find the ids of nodes, ways and relations referenced by this
73 # relation - note that we exclude this relation just in case.
75 node_ids = relation.members.select { |m| m[0] == "Node" }.map { |m| m[1] }
76 way_ids = relation.members.select { |m| m[0] == "Way" }.map { |m| m[1] }
77 relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.map { |m| m[1] }
79 # next load the relations and the ways.
81 relations = Relation.where(:id => relation_ids).includes(:relation_tags)
82 ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags)
84 # now additionally collect nodes referenced by ways. Note how we
85 # recursively evaluate ways but NOT relations.
87 way_node_ids = ways.collect do |way|
88 way.way_nodes.collect(&:node_id)
90 node_ids += way_node_ids.flatten
91 nodes = Node.where(:id => node_ids.uniq).includes(:node_tags)
94 doc = OSM::API.new.get_xml_doc
97 user_display_name_cache = {}
100 next unless node.visible? # should be unnecessary if data is consistent.
102 doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
103 visible_nodes[node.id] = node
107 next unless way.visible? # should be unnecessary if data is consistent.
109 doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
112 relations.each do |rel|
113 next unless rel.visible? # should be unnecessary if data is consistent.
115 doc.root << rel.to_xml_node(changeset_cache, user_display_name_cache)
118 # finally add self and output
119 doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
120 render :xml => doc.to_s
128 raise OSM::APIBadUserInput, "The parameter relations is required, and must be of the form relations=id[,id[,id...]]" unless params["relations"]
130 ids = params["relations"].split(",").collect(&:to_i)
132 raise OSM::APIBadUserInput, "No relations were given to search for" if ids.empty?
134 doc = OSM::API.new.get_xml_doc
136 Relation.find(ids).each do |relation|
137 doc.root << relation.to_xml_node
140 render :xml => doc.to_s
143 def relations_for_way
144 relations_for_object("Way")
147 def relations_for_node
148 relations_for_object("Node")
151 def relations_for_relation
152 relations_for_object("Relation")
157 def relations_for_object(objtype)
158 relationids = RelationMember.where(:member_type => objtype, :member_id => params[:id]).collect(&:relation_id).uniq
160 doc = OSM::API.new.get_xml_doc
162 Relation.find(relationids).each do |relation|
163 doc.root << relation.to_xml_node if relation.visible
166 render :xml => doc.to_s