Add Event#location= and make location an accessible attribute.

Add long aliases for lat and lng to Location.

app/models/agents/user_location_agent.rb

@@ -65,8 +65,10 @@ module Agents
     private
 
     def handle_payload(payload)
-      if payload[:latitude].present? && payload[:longitude].present?
-        create_event payload: payload, lat: payload[:latitude].to_f, lng: payload[:longitude].to_f
+      location = Location.new(payload)
+
+      if location.present?
+        create_event payload: payload, location: location
       end
     end
   end

app/models/event.rb

@@ -7,7 +7,7 @@ class Event < ActiveRecord::Base
   include JSONSerializedField
   include LiquidDroppable
 
-  attr_accessible :lat, :lng, :payload, :user_id, :user, :expires_at
+  attr_accessible :lat, :lng, :location, :payload, :user_id, :user, :expires_at
 
   acts_as_mappable
 
@@ -53,6 +53,19 @@ class Event < ActiveRecord::Base
       speed: payload[:speed].presence)
   end
 
+  def location=(location)
+    case location
+    when nil
+      self.lat = self.lng = nil
+      return
+    when Location
+    else
+      location = Location.new(location)
+    end
+    self.lat, self.lng = location.lat, location.lng
+    location
+  end
+
   # Emit this event again, as a new Event.
   def reemit!
     agent.create_event :payload => payload, :lat => lat, :lng => lng

lib/location.rb

@@ -34,6 +34,9 @@ class Location
     }
   end
 
+  alias latitude  lat
+  alias latitude= lat=
+
   def lng=(value)
     self[:lng] = floatify(value) { |f|
       if f.abs <= 180
@@ -44,6 +47,9 @@ class Location
     }
   end
 
+  alias longitude  lng
+  alias longitude= lng=
+
   def radius=(value)
     self[:radius] = floatify(value) { |f| f if f >= 0 }
   end