X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/9c01c4cb639775f4f93f477546124247a33f80d2..70a6ecee190835d24209deed270bbf6a7dd8a588:/app/controllers/api_controller.rb?ds=sidebyside diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb index 3555260d2..a17e630c2 100644 --- a/app/controllers/api_controller.rb +++ b/app/controllers/api_controller.rb @@ -132,12 +132,13 @@ class ApiController < ApplicationController # check the bbox isn't too large requested_area = (max_lat-min_lat)*(max_lon-min_lon) if requested_area > MAX_REQUEST_AREA - report_error("The maximum bbox size is " + MAX_REQUEST_AREA.to_s + ", and your request was too large. Either request a smaller area, or use planet.osm") + report_error("The maximum bbox size is " + MAX_REQUEST_AREA.to_s + + ", and your request was too large. Either request a smaller area, or use planet.osm") return end # get all the nodes - nodes = Node.find(:all, :conditions => ['latitude BETWEEN ? AND ? AND longitude BETWEEN ? AND ? AND visible = 1', min_lat, max_lat, min_lon, max_lon]) + nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => "visible = 1") node_ids = nodes.collect {|node| node.id } @@ -147,68 +148,38 @@ class ApiController < ApplicationController end if node_ids.length == 0 - render :text => "", :content_type => "text/xml" + render :text => "", :content_type => "text/xml" return end - # grab the segments - segments = Array.new - if node_ids.length > 0 - node_ids_sql = "(#{node_ids.join(',')})" - # get the referenced segments - segments = Segment.find_by_sql "select * from current_segments where visible = 1 and (node_a in #{node_ids_sql} or node_b in #{node_ids_sql})" - end - # see if we have any missing nodes - segments_nodes = segments.collect {|segment| segment.node_a } - segments_nodes += segments.collect {|segment| segment.node_b } - - segments_nodes.uniq! - - missing_nodes = segments_nodes - node_ids - - # get missing nodes if there are any - nodes += Node.find(missing_nodes) if missing_nodes.length > 0 + relations = Array.new doc = OSM::API.new.get_xml_doc # get ways # find which ways are needed - segment_ids = segments.collect {|segment| segment.id } ways = Array.new - if segment_ids.length > 0 - way_segments = WaySegment.find_all_by_segment_id(segment_ids) - way_ids = way_segments.collect {|way_segment| way_segment.id } - ways = Way.find(way_ids) # NB: doesn't pick up segments, tags from db until accessed via way.way_segments etc. - - # seg_ids = way_segments.collect {|way_segment| way_segment.segment_id } - - list_of_way_segs = ways.collect {|way| way.way_segments} - list_of_way_segs.flatten! + if node_ids.length > 0 + way_nodes = WayNode.find_all_by_node_id(node_ids) + way_ids = way_nodes.collect {|way_node| way_node.id } + ways = Way.find(way_ids) - list_of_way_segments = list_of_way_segs.collect { |way_seg| way_seg.segment_id } + list_of_way_nodes = ways.collect { |way| + way.way_nodes.collect { |way_node| way_node.node_id } + } + list_of_way_nodes.flatten! - else - list_of_way_segments = Array.new + else + list_of_way_nodes = Array.new end - # - [0] in case some thing links to segment 0 which doesn't exist. Shouldn't actually ever happen but it does. FIXME: file a ticket for this - segments_to_fetch = (list_of_way_segments.uniq - segment_ids) - [0] + # - [0] in case some thing links to node 0 which doesn't exist. Shouldn't actually ever happen but it does. FIXME: file a ticket for this + nodes_to_fetch = (list_of_way_nodes.uniq - node_ids) - [0] - if segments_to_fetch.length > 0 - segments += Segment.find(segments_to_fetch) + if nodes_to_fetch.length > 0 + nodes += Node.find(nodes_to_fetch) end - # get more nodes - # - - segments_nodes = segments.collect {|segment| segment.node_a } - segments_nodes += segments.collect {|segment| segment.node_b } - - node_ids_a = nodes.collect {|node| node.id } - - nodes_to_get = segments_nodes - node_ids_a - nodes += Node.find(nodes_to_get) if nodes_to_get.length > 0 - visible_nodes = {} user_display_name_cache = {} @@ -219,18 +190,45 @@ class ApiController < ApplicationController end end - visible_segments = {} - - segments.each do |segment| - if visible_nodes[segment.node_a] and visible_nodes[segment.node_b] and segment.visible? - doc.root << segment.to_xml_node(user_display_name_cache) - visible_segments[segment.id] = segment + way_ids = Array.new + ways.each do |way| + if way.visible? + doc.root << way.to_xml_node(visible_nodes, user_display_name_cache) + way_ids << way.id end + end + + # collect relationships. currently done in one big block at the end; + # may need to move this upwards if people want automatic completion of + # relationships, i.e. deliver referenced objects like we do with ways... + relations = Array.new + if visible_nodes.length > 0 + relations += Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " + + "e.visible=1 and " + + "em.id = e.id and em.member_type='node' and em.member_id in (#{visible_nodes.keys.join(',')})") + end + if way_ids.length > 0 + relations += Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " + + "e.visible=1 and " + + "em.id = e.id and em.member_type='way' and em.member_id in (#{way_ids.join(',')})") + end + # we do not normally return the "other" partners referenced by an relation, + # e.g. if we return a way A that is referenced by relation X, and there's + # another way B also referenced, that is not returned. But we do make + # an exception for cases where an relation references another *relation*; + # in that case we return that as well (but we don't go recursive here) + relation_ids = relations.collect { |relation| relation.id } + if relation_ids.length > 0 + relations += Relation.find_by_sql("select e.* from current_relations e,current_relation_members em where " + + "e.visible=1 and " + + "em.id = e.id and em.member_type='relation' and em.member_id in (#{relation_ids.join(',')})") end - ways.each do |way| - doc.root << way.to_xml_node(visible_segments, user_display_name_cache) if way.visible? - end + # this "uniq" may be slightly inefficient; it may be better to first collect and output + # all node-related relations, then find the *not yet covered* way-related ones etc. + relations.uniq.each do |relation| + doc.root << relation.to_xml_node(user_display_name_cache) + end render :text => doc.to_s, :content_type => "text/xml" @@ -242,13 +240,58 @@ class ApiController < ApplicationController end end + def changes + zoom = (params[:zoom] || '12').to_i + + if params.include?(:start) and params.include?(:end) + starttime = Time.parse(params[:start]) + endtime = Time.parse(params[:end]) + else + hours = (params[:hours] || '1').to_i.hours + endtime = Time.now + starttime = endtime - hours + end + + if zoom >= 1 and zoom <= 16 and + endtime >= starttime and endtime - starttime <= 24.hours + mask = (1 << zoom) - 1 + + tiles = Node.count(:conditions => ["timestamp BETWEEN ? AND ?", starttime, endtime], + :group => "maptile_for_point(latitude, longitude, #{zoom})") + + doc = OSM::API.new.get_xml_doc + changes = XML::Node.new 'changes' + changes["starttime"] = starttime.xmlschema + changes["endtime"] = endtime.xmlschema + + tiles.each do |tile, count| + x = (tile.to_i >> zoom) & mask + y = tile.to_i & mask + + t = XML::Node.new 'tile' + t["x"] = x.to_s + t["y"] = y.to_s + t["z"] = zoom.to_s + t["changes"] = count.to_s + + changes << t + end + + doc.root << changes + + render :text => doc.to_s, :content_type => "text/xml" + else + render :nothing => true, :status => :bad_request + end + end + def capabilities doc = OSM::API.new.get_xml_doc api = XML::Node.new 'api' version = XML::Node.new 'version' - version['minimum'] = '0.4'; - version['maximum'] = '0.4'; + version['minimum'] = '0.5'; + version['maximum'] = '0.5'; api << version area = XML::Node.new 'area' area['maximum'] = MAX_REQUEST_AREA.to_s;