public HttpResponseMessage GetViewingsByPeriod(Period viewingPeriod)
 {
     var result = _propertyService.GetPropertiesWithViewingsForPeriod(viewingPeriod.From, viewingPeriod.To);
     return Request.CreateResponse(result);
 }
 public HttpResponseMessage GetLetByPeriod(Period period)
 {
     var result = _propertyService.GetLetApplicationsForPeriod(period.From, period.To);
     return Request.CreateResponse(result);
 }