1 class RelationsController < ApplicationController
4 skip_before_action :verify_authenticity_token
5 before_action :authorize, :only => [:create, :update, :delete]
6 before_action :require_allow_write_api, :only => [:create, :update, :delete]
7 before_action :require_public_data, :only => [:create, :update, :delete]
8 before_action :check_api_writable, :only => [:create, :update, :delete]
9 before_action :check_api_readable, :except => [:create, :update, :delete]
10 around_action :api_call_handle_error, :api_call_timeout
15 relation = Relation.from_xml(request.raw_post, true)
17 # Assume that Relation.from_xml has thrown an exception if there is an error parsing the xml
18 relation.create_with_history current_user
19 render :plain => relation.id.to_s
23 relation = Relation.find(params[:id])
24 response.last_modified = relation.timestamp
26 render :xml => relation.to_xml.to_s
33 logger.debug request.raw_post
35 relation = Relation.find(params[:id])
36 new_relation = Relation.from_xml(request.raw_post)
38 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
40 relation.update_from new_relation, current_user
41 render :plain => relation.version.to_s
45 relation = Relation.find(params[:id])
46 new_relation = Relation.from_xml(request.raw_post)
47 if new_relation && new_relation.id == relation.id
48 relation.delete_with_history!(new_relation, current_user)
49 render :plain => relation.version.to_s
55 # -----------------------------------------------------------------
58 # input parameters: id
60 # returns XML representation of one relation object plus all its
61 # members, plus all nodes part of member ways
62 # -----------------------------------------------------------------
64 relation = Relation.find(params[:id])
68 # first find the ids of nodes, ways and relations referenced by this
69 # relation - note that we exclude this relation just in case.
71 node_ids = relation.members.select { |m| m[0] == "Node" }.map { |m| m[1] }
72 way_ids = relation.members.select { |m| m[0] == "Way" }.map { |m| m[1] }
73 relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.map { |m| m[1] }
75 # next load the relations and the ways.
77 relations = Relation.where(:id => relation_ids).includes(:relation_tags)
78 ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags)
80 # now additionally collect nodes referenced by ways. Note how we
81 # recursively evaluate ways but NOT relations.
83 way_node_ids = ways.collect do |way|
84 way.way_nodes.collect(&:node_id)
86 node_ids += way_node_ids.flatten
87 nodes = Node.where(:id => node_ids.uniq).includes(:node_tags)
90 doc = OSM::API.new.get_xml_doc
93 user_display_name_cache = {}
96 next unless node.visible? # should be unnecessary if data is consistent.
98 doc.root << node.to_xml_node(changeset_cache, user_display_name_cache)
99 visible_nodes[node.id] = node
103 next unless way.visible? # should be unnecessary if data is consistent.
105 doc.root << way.to_xml_node(visible_nodes, changeset_cache, user_display_name_cache)
108 relations.each do |rel|
109 next unless rel.visible? # should be unnecessary if data is consistent.
111 doc.root << rel.to_xml_node(changeset_cache, user_display_name_cache)
114 # finally add self and output
115 doc.root << relation.to_xml_node(changeset_cache, user_display_name_cache)
116 render :xml => doc.to_s
124 raise OSM::APIBadUserInput, "The parameter relations is required, and must be of the form relations=id[,id[,id...]]" unless params["relations"]
126 ids = params["relations"].split(",").collect(&:to_i)
128 raise OSM::APIBadUserInput, "No relations were given to search for" if ids.empty?
130 doc = OSM::API.new.get_xml_doc
132 Relation.find(ids).each do |relation|
133 doc.root << relation.to_xml_node
136 render :xml => doc.to_s
139 def relations_for_way
140 relations_for_object("Way")
143 def relations_for_node
144 relations_for_object("Node")
147 def relations_for_relation
148 relations_for_object("Relation")
151 def relations_for_object(objtype)
152 relationids = RelationMember.where(:member_type => objtype, :member_id => params[:id]).collect(&:relation_id).uniq
154 doc = OSM::API.new.get_xml_doc
156 Relation.find(relationids).each do |relation|
157 doc.root << relation.to_xml_node if relation.visible
160 render :xml => doc.to_s