X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/18f65b78ebe02d96861991880056c7abb07c299e..cfd2c5dddab88372905a23f7b9680df58feb9b53:/app/controllers/api/relations_controller.rb diff --git a/app/controllers/api/relations_controller.rb b/app/controllers/api/relations_controller.rb index f712534f0..006b3e8a6 100644 --- a/app/controllers/api/relations_controller.rb +++ b/app/controllers/api/relations_controller.rb @@ -26,9 +26,64 @@ module Api end def show - @relation = Relation.find(params[:id]) - response.last_modified = @relation.timestamp - if @relation.visible + relation = Relation.find(params[:id]) + + response.last_modified = relation.timestamp unless params[:full] + + @nodes = [] + @ways = [] + @relations = [] + + if relation.visible + if params[:full] + # with parameter :full + # returns representation of one relation object plus all its + # members, plus all nodes part of member ways + + # first find the ids of nodes, ways and relations referenced by this + # relation - note that we exclude this relation just in case. + + node_ids = relation.members.select { |m| m[0] == "Node" }.pluck(1) + way_ids = relation.members.select { |m| m[0] == "Way" }.pluck(1) + relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.pluck(1) + + # next load the relations and the ways. + + relations = Relation.where(:id => relation_ids).includes(:relation_tags) + ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags) + + # now additionally collect nodes referenced by ways. Note how we + # recursively evaluate ways but NOT relations. + + way_node_ids = ways.collect do |way| + way.way_nodes.collect(&:node_id) + end + node_ids += way_node_ids.flatten + nodes = Node.where(:id => node_ids.uniq).includes(:node_tags) + + @nodes = [] + nodes.each do |node| + next unless node.visible? # should be unnecessary if data is consistent. + + @nodes << node + end + + ways.each do |way| + next unless way.visible? # should be unnecessary if data is consistent. + + @ways << way + end + + relations.each do |rel| + next unless rel.visible? # should be unnecessary if data is consistent. + + @relations << rel + end + end + + # finally add self + @relations << relation + # Render the result respond_to do |format| format.xml @@ -68,74 +123,6 @@ module Api end end - # ----------------------------------------------------------------- - # full - # - # input parameters: id - # - # returns XML representation of one relation object plus all its - # members, plus all nodes part of member ways - # ----------------------------------------------------------------- - def full - relation = Relation.find(params[:id]) - - if relation.visible - - # first find the ids of nodes, ways and relations referenced by this - # relation - note that we exclude this relation just in case. - - node_ids = relation.members.select { |m| m[0] == "Node" }.pluck(1) - way_ids = relation.members.select { |m| m[0] == "Way" }.pluck(1) - relation_ids = relation.members.select { |m| m[0] == "Relation" && m[1] != relation.id }.pluck(1) - - # next load the relations and the ways. - - relations = Relation.where(:id => relation_ids).includes(:relation_tags) - ways = Way.where(:id => way_ids).includes(:way_nodes, :way_tags) - - # now additionally collect nodes referenced by ways. Note how we - # recursively evaluate ways but NOT relations. - - way_node_ids = ways.collect do |way| - way.way_nodes.collect(&:node_id) - end - node_ids += way_node_ids.flatten - nodes = Node.where(:id => node_ids.uniq).includes(:node_tags) - - @nodes = [] - nodes.each do |node| - next unless node.visible? # should be unnecessary if data is consistent. - - @nodes << node - end - - @ways = [] - ways.each do |way| - next unless way.visible? # should be unnecessary if data is consistent. - - @ways << way - end - - @relations = [] - relations.each do |rel| - next unless rel.visible? # should be unnecessary if data is consistent. - - @relations << rel - end - - # finally add self - @relations << relation - - # Render the result - respond_to do |format| - format.xml - format.json - end - else - head :gone - end - end - def relations_for_way relations_for_object("Way") end