Add a maptile_for_point() function for MySQL to work out which slippy

[rails.git] / app / models / old_node.rb

diff --git a/app/models/old_node.rb b/app/models/old_node.rb
index 2b18b819e896656e58a2ac5bbebef8a193685900..c63738fc48e3b8e4a89c8fbf5c425a6905d67b32 100644 (file)
--- a/app/models/old_node.rb
+++ b/app/models/old_node.rb
@@ -1,7 +1,50 @@
 class OldNode < ActiveRecord::Base
   set_table_name 'nodes'
+  
+  validates_presence_of :user_id, :timestamp
+  validates_inclusion_of :visible, :in => [ true, false ]
+  validates_numericality_of :latitude, :longitude
+  validate :validate_position
 
   belongs_to :user
+ 
+  before_save :update_tile
+
+  def self.find_by_area(minlat, minlon, maxlat, maxlon, options)
+    self.with_scope(:find => {:conditions => OSM.sql_for_area(minlat, minlon, maxlat, maxlon)}) do
+      return self.find(:all, options)
+    end
+  end
+
+  def update_tile
+    self.tile = QuadTile.tile_for_point(lat, lon)
+  end
+
+  def lat=(l)
+    self.latitude = (l * 10000000).round
+  end
+
+  def lon=(l)
+    self.longitude = (l * 10000000).round
+  end
+
+  def lat
+    return self.latitude.to_f / 10000000
+  end
+
+  def lon
+    return self.longitude.to_f / 10000000
+  end
+
+  def validate_position
+    errors.add_to_base("Node is not in the world") unless in_world?
+  end
+
+  def in_world?
+    return false if self.lat < -90 or self.lat > 90
+    return false if self.lon < -180 or self.lon > 180
+    return true
+  end
 
   def self.from_node(node)
     old_node = OldNode.new
@@ -15,4 +58,15 @@ class OldNode < ActiveRecord::Base
     return old_node
   end
 
+  def to_xml_node
+    el1 = XML::Node.new 'node'
+    el1['id'] = self.id.to_s
+    el1['lat'] = self.lat.to_s
+    el1['lon'] = self.lon.to_s
+    el1['user'] = self.user.display_name if self.user.data_public?
+    Node.split_tags(el1, self.tags)
+    el1['visible'] = self.visible.to_s
+    el1['timestamp'] = self.timestamp.xmlschema
+    return el1
+  end
 end