-class Node < ActiveRecord::Base
+class Node < GeoRecord
require 'xml/libxml'
+
set_table_name 'current_nodes'
validates_presence_of :user_id, :timestamp
has_many :old_nodes, :foreign_key => :id
belongs_to :user
-
+
def validate_position
errors.add_to_base("Node is not in the world") unless in_world?
end
def in_world?
- return false if self.latitude < -90 or self.latitude > 90
- return false if self.longitude < -180 or self.longitude > 180
+ return false if self.lat < -90 or self.lat > 90
+ return false if self.lon < -180 or self.lon > 180
return true
end
node = Node.new
doc.find('//osm/node').each do |pt|
- node.latitude = pt['lat'].to_f
- node.longitude = pt['lon'].to_f
+ node.lat = pt['lat'].to_f
+ node.lon = pt['lon'].to_f
return nil unless node.in_world?
return node
end
- def save_with_history
- begin
- Node.transaction do
- self.timestamp = Time.now
- self.save!
- old_node = OldNode.from_node(self)
- old_node.save!
- end
-
- return true
- rescue
- return nil
+ def save_with_history!
+ Node.transaction do
+ self.timestamp = Time.now
+ self.save!
+ old_node = OldNode.from_node(self)
+ old_node.save!
end
end
def to_xml_node(user_display_name_cache = nil)
el1 = XML::Node.new 'node'
el1['id'] = self.id.to_s
- el1['lat'] = self.latitude.to_s
- el1['lon'] = self.longitude.to_s
+ el1['lat'] = self.lat.to_s
+ el1['lon'] = self.lon.to_s
user_display_name_cache = {} if user_display_name_cache.nil?
- if user_display_name_cache and user_display_name_cache[self.user_id]
+ if user_display_name_cache and user_display_name_cache.key?(self.user_id)
# use the cache if available
elsif self.user.data_public?
user_display_name_cache[self.user_id] = self.user.display_name