class ApiController < ApplicationController
def map
+ # Figure out the bbox
bbox = params['bbox']
unless bbox and bbox.count(',') == 3
render :nothing => true, :status => 400
bbox = bbox.split(',')
- min_lat = bbox[0].to_f
- min_lon = bbox[1].to_f
- max_lat = bbox[2].to_f
- max_lon = bbox[3].to_f
+ min_lon = bbox[0].to_f
+ min_lat = bbox[1].to_f
+ max_lon = bbox[2].to_f
+ max_lat = bbox[3].to_f
+ # get all the nodes
nodes = Node.find(:all, :conditions => ['latitude > ? AND longitude > ? AND latitude < ? AND longitude < ? AND visible = 1', min_lat, min_lon, max_lat, max_lon])
- node_ids = "(#{nodes.collect {|node| node.id }})"
+ node_ids = nodes.collect {|node| node.id }
+ node_ids_sql = "(#{node_ids.join(',')})"
- segments = Segment.find(:all, :condtions => ['node_a in ? or node_b in ?', node_ids, node_ids])
- render :text => node_ids.join(',')
- return
+ # get the referenced segments
+ segments = Segment.find_by_sql "select * from segments where node_a in #{node_ids_sql} or node_b in #{node_ids_sql}"
+
+ # see if we have nay 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
doc = XML::Document.new
doc.encoding = 'UTF-8'
root['version'] = '0.4'
root['generator'] = 'OpenStreetMap server'
doc.root = root
+
+ nodes.each do |node|
+ root << node.to_xml_node()
+ end
+
+ segments.each do |segment|
+ root << segment.to_xml_node()
+ end
render :text => doc.to_s
-
- #el1 = XML::Node.new 'node'
- #el1['id'] = self.id.to_s
- #el1['lat'] = self.latitude.to_s
- #el1['lon'] = self.longitude.to_s
- #Node.split_tags(el1, self.tags)
- #el1['visible'] = self.visible.to_s
- #el1['timestamp'] = self.timestamp.xmlschema
- #root << el1
- end
+ end
end
root['version'] = '0.4'
root['generator'] = 'OpenStreetMap server'
doc.root = root
+ root << to_xml_node()
+ return doc
+ end
+
+ def to_xml_node
el1 = XML::Node.new 'node'
el1['id'] = self.id.to_s
el1['lat'] = self.latitude.to_s
Node.split_tags(el1, self.tags)
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
- root << el1
- return doc
+ return el1
end
def self.split_tags(el, tags)
root['version'] = '0.4'
root['generator'] = 'OpenStreetMap server'
doc.root = root
+ root << to_xml_node()
+ return doc
+ end
+
+ def to_xml_node
el1 = XML::Node.new 'segment'
el1['id'] = self.id.to_s
el1['from'] = self.node_a.to_s
Segment.split_tags(el1, self.tags)
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
- root << el1
- return doc
+ return el1
end
def self.split_tags(el, tags)