code: def getDateReceived(self):
          
          request = self.getRequest()
          if request:
              ar_date = request.getDateReceived()
              if ar_date and self.created() > ar_date:
                  return self.created()
              return ar_date
          return None
docs: Used to populate catalog values.
          Returns the date the Analysis Request this analysis belongs to was
          received. If the analysis was created after, then returns the date
          the analysis was created.