X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/24b21e4a29d28a3174965d449d36465ecda9ead7..b54362d4581075308ad277fd7023ee11f530e0a0:/lib/geo_record.rb

diff --git a/lib/geo_record.rb b/lib/geo_record.rb
index 273419757..e02734ec9 100644
--- a/lib/geo_record.rb
+++ b/lib/geo_record.rb
@@ -1,23 +1,36 @@
+require "delegate"
+
 module GeoRecord
-  # This scaling factor is used to convert between the float lat/lon that is 
+  # Ensure that when coordinates are printed that they are always in decimal degrees,
+  # and not e.g. 4.0e-05
+  # Unfortunately you can't extend Numeric classes directly (e.g. `Coord < Float`).
+  class Coord < DelegateClass(Float)
+    def initialize(obj)
+      super(obj)
+    end
+
+    def to_s
+      format("%.7f", self)
+    end
+  end
+
+  # This scaling factor is used to convert between the float lat/lon that is
   # returned by the API, and the integer lat/lon equivalent that is stored in
   # the database.
   SCALE = 10000000
-  
-  def self.included(base)
-    base.extend(ClassMethods)
-  end
 
-  def before_save
-    self.update_tile
+  def self.included(base)
+    base.scope :bbox, ->(bbox) { base.where(OSM.sql_for_area(bbox)) }
+    base.before_save :update_tile
   end
 
   # Is this node within -90 >= latitude >= 90 and -180 >= longitude >= 180
   # * returns true/false
   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
+    return false if lat < -90 || lat > 90
+    return false if lon < -180 || lon > 180
+
+    true
   end
 
   def update_tile
@@ -34,45 +47,11 @@ module GeoRecord
 
   # Return WGS84 latitude
   def lat
-    return self.latitude.to_f / SCALE
+    Coord.new(latitude.to_f / SCALE)
   end
 
   # Return WGS84 longitude
   def lon
-    return self.longitude.to_f / SCALE
-  end
-
-  # Generic checks that are run for the updates and deletes of
-  # node, ways and relations. This code is here to avoid duplication, 
-  # and allow the extention of the checks without having to modify the
-  # code in 6 places for all the updates and deletes. Some of these tests are 
-  # needed for creates, but are currently not run :-( 
-  # This will throw an exception if there is an inconsistency
-  def check_consistency(old, new, user)
-    if new.version != old.version
-      raise OSM::APIVersionMismatchError.new(new.version, old.version)
-    elsif new.changeset.nil?
-      raise OSM::APIChangesetMissingError.new
-    elsif new.changeset.empty?
-      raise OSM::APIChangesetMissingError.new
-    elsif new.changeset.user_id != user.id
-      raise OSM::APIUserChangesetMismatchError.new
-    elsif not new.changeset.is_open?
-      raise OSM::APIChangesetAlreadyClosedError.new
-    end
-  end
-private
-  
-  def lat2y(a)
-    180/Math::PI * Math.log(Math.tan(Math::PI/4+a*(Math::PI/180)/2))
-  end
-
-  module ClassMethods
-    def 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
+    Coord.new(longitude.to_f / SCALE)
   end
 end
-