irb(main):001:0>   r = Region.new({:name => "San Diego", :lat => 0.571051380713466, :lng => -2.04489478973313})
=> #<Region id=nil name="San Diego" lat=0.571051380713466 lng=-2.04489478973313>
irb(main):002:0>   r.save
=> false
irb(main):003:0>
irb(main):004:0* r.errors
=> #<DataMapper::Validate::ValidationErrors:0x261add0 @errors={:lat=>["Lat must be a number"], :lng=>["Lng must be a number"]}>