update qr code system and add location setter for suppliers

app/models/supplier.rb

@@ -6,6 +6,8 @@ class Supplier
   property :name
   property :open, type: :boolean, default: false
   property :night_offset, type: Float
+  property :lat, type: Float, default: 52.08062426379751
+  property :lng, type: Float, default: 4.312562942504883
   
   #WIFI
   property :offer_wifi
@@ -24,6 +26,16 @@ class Supplier
 
   after_create :add_section_on_create
 
+  def location=(val)
+    lat, lng = val.strip.split(/[ ,]+/).map(&:to_f)
+    self.lat = lat
+    self.lng = lng
+  end
+
+  def location
+    [lat, lng].join(',')
+  end
+
   def active_orders(options = {})
     return @active_orders if @active_orders && @active_orders_options == options
     @active_orders_options = options