public string DeleteArea(Area area)
{
string errorMessage = "Failed to delete area";
var childTours = _tourRepository.GetByAreaId(area.Id);
if (childTours.Count() == 0 && _areaRepository.DeleteEntity(area))
{
errorMessage = "";
}
else if (childTours.Count() > 0)
{
errorMessage = string.Format("Failed to delete area, tours associated with area must be deleted first.", childTours.Count());
}
return(errorMessage);
}