def test_amending_biobank_order_distinct_visit_count(self):
    self.participant = self._insert(Participant(participantId=9, biobankId=13))
    with clock.FakeClock(TIME_5):
      order = self.order_dao.insert(self._make_biobank_order(biobankOrderId='2', identifiers=[
        BiobankOrderIdentifier(system='b', value='d')], samples=[BiobankOrderedSample(
                                                        biobankOrderId='2',
                                                        finalized=TIME_5,
                                                        test=BIOBANK_TESTS[0],
                                                        description='description',
                                                        processingRequired=True)]))

      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

    with clock.FakeClock(TIME_7):
      amend_order = self._get_amended_info(order)
      with self.order_dao.session() as session:
        self.order_dao._do_update(session, amend_order, order)

      # Shouldn't change on a simple amendment (unless finalized time on samples change)
      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

    with clock.FakeClock(TIME_7_5):
      cancel_request = cancel_biobank_order()
      order = self.order_dao.update_with_patch(order.biobankOrderId, cancel_request, order.version)

    # A cancelled order (even after amending) should reduce count (unless some other valid order on same day)
    summary = self.dao.get(self.participant.participantId)
    self.assertEquals(summary.numberDistinctVisits, 0)
示例#2
0
    def _make_biobank_order(self, **kwargs):
        """Makes a new BiobankOrder (same values every time) with valid/complete defaults.

    Kwargs pass through to BiobankOrder constructor, overriding defaults.
    """
        for k, default_value in (('biobankOrderId', '1'), ('created',
                                                           clock.CLOCK.now()),
                                 ('participantId',
                                  self.participant.participantId),
                                 ('sourceSiteId', 1), ('sourceUsername',
                                                       '*****@*****.**'),
                                 ('collectedSiteId', 1), ('collectedUsername',
                                                          '*****@*****.**'),
                                 ('processedSiteId', 1), ('processedUsername',
                                                          '*****@*****.**'),
                                 ('finalizedSiteId',
                                  2), ('finalizedUsername',
                                       '*****@*****.**'), ('identifiers', [
                                           BiobankOrderIdentifier(system='a',
                                                                  value='c')
                                       ]), ('samples', [
                                           BiobankOrderedSample(
                                               biobankOrderId='1',
                                               test=BIOBANK_TESTS[0],
                                               description=u'description',
                                               finalized=self.TIME_1,
                                               processingRequired=True)
                                       ])):
            if k not in kwargs:
                kwargs[k] = default_value
        return BiobankOrder(**kwargs)
示例#3
0
    def _make_biobank_order(self, **kwargs):
        """Makes a new BiobankOrder (same values every time) with valid/complete defaults.

    Kwargs pass through to BiobankOrder constructor, overriding defaults.
    """
        participantId = kwargs['participantId']
        modified = datetime.datetime(2019, 03, 25, 15, 59, 30)

        for k, default_value in (
            ('biobankOrderId', u'1'),
            ('created', clock.CLOCK.now()),
                # ('participantId', self.participant.participantId),
            ('sourceSiteId', 1),
            ('sourceUsername', u'*****@*****.**'),
            ('collectedSiteId', 1),
            ('collectedUsername', u'*****@*****.**'),
            ('processedSiteId', 1),
            ('processedUsername', u'*****@*****.**'),
            ('finalizedSiteId', 2),
            ('finalizedUsername', u'*****@*****.**'),
            ('version', 1),
            ('identifiers', [BiobankOrderIdentifier(system=u'a', value=u'c')]),
            ('samples', [
                BiobankOrderedSample(test=u'1SAL2',
                                     description=u'description',
                                     processingRequired=True)
            ]),
            ('dvOrders', [
                BiobankDVOrder(participantId=participantId,
                               modified=modified,
                               version=1)
            ])):
            if k not in kwargs:
                kwargs[k] = default_value
        return BiobankOrder(**kwargs)
  def test_cancelled_order_removes_from_participant_summary(self):
    ParticipantSummaryDao().insert(self.participant_summary(self.participant))
    samples = [BiobankOrderedSample(
      test=self._B_TEST, processingRequired=True, description=u'new sample')]
    biobank_order_id = 2
    with clock.FakeClock(self.TIME_1):
      order_1 = self.dao.insert(self._make_biobank_order())

    with clock.FakeClock(self.TIME_2):
      self.dao.insert(self._make_biobank_order(samples=samples,
                                               biobankOrderId=biobank_order_id,
                                               identifiers=[
                                                           BiobankOrderIdentifier(system='z',
                                                                                  value='x')]))
    cancelled_request = self._get_cancel_patch()
    ps_dao = ParticipantSummaryDao().get(self.participant.participantId)

    self.assertEqual(ps_dao.sampleOrderStatus1ED10, OrderStatus.FINALIZED)
    self.assertEqual(ps_dao.sampleOrderStatus1ED10Time, self.TIME_2)
    self.assertEqual(ps_dao.sampleOrderStatus2ED10, OrderStatus.CREATED)
    self.assertEqual(ps_dao.sampleOrderStatus2ED10Time, self.TIME_2)

    self.dao.update_with_patch(order_1.biobankOrderId, cancelled_request,
                               order_1.version)
    ps_dao = ParticipantSummaryDao().get(self.participant.participantId)

    self.assertEqual(ps_dao.sampleOrderStatus1ED10, None)
    self.assertEqual(ps_dao.sampleOrderStatus1ED10Time, None)
    # should not remove the other order
    self.assertEqual(ps_dao.sampleOrderStatus2ED10, OrderStatus.CREATED)
    self.assertEqual(ps_dao.sampleOrderStatus2ED10Time, self.TIME_2)
    self.assertEqual(ps_dao.biospecimenCollectedSiteId, 1)
    self.assertEqual(ps_dao.biospecimenFinalizedSiteId, 2)
    self.assertEqual(ps_dao.biospecimenProcessedSiteId, 1)
    self.assertEqual(ps_dao.biospecimenStatus, OrderStatus.FINALIZED)
 def test_store_invalid_test(self):
     with self.assertRaises(BadRequest):
         self.dao.insert(
             self._make_biobank_order(samples=[
                 BiobankOrderedSample(test='InvalidTestName',
                                      processingRequired=True,
                                      description=u'tested it')
             ]))
  def test_pm_restore_cancel_biobank_restore_cancel(self):
    self.participant = self._insert(Participant(participantId=9, biobankId=13))
    self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                             TIME_4.isoformat()))
    measurement = self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=669,
                                                                 finalized=TIME_4))
    summary = self.dao.get(self.participant.participantId)
    self.assertEquals(summary.numberDistinctVisits, 1)

    with clock.FakeClock(TIME_5):
      order = self.order_dao.insert(self._make_biobank_order(biobankOrderId='2', identifiers=[
        BiobankOrderIdentifier(system='b', value='d')], samples=[BiobankOrderedSample(
                                                        biobankOrderId='2',
                                                        finalized=TIME_5,
                                                        test=BIOBANK_TESTS[0],
                                                        description='description',
                                                        processingRequired=True)]))


    with clock.FakeClock(TIME_7):
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 2
      self.assertEquals(summary.numberDistinctVisits, 2)

      # cancel the measurement
      cancel_measurement = get_restore_or_cancel_info()
      with self.measurement_dao.session() as session:
        self.measurement_dao.update_with_patch(measurement.physicalMeasurementsId, session,
                                               cancel_measurement)

      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

    with clock.FakeClock(TIME_7):
      restore_measurement = get_restore_or_cancel_info(status='restored')
      with self.measurement_dao.session() as session:
        self.measurement_dao.update_with_patch(measurement.physicalMeasurementsId, session,
                                               restore_measurement)

      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 2)


      cancel_request = cancel_biobank_order()
      order = self.order_dao.update_with_patch(order.biobankOrderId, cancel_request, order.version)

      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

      restore_order = get_restore_or_cancel_info(status='restored')
      restore_order['amendedReason'] = 'some reason'
      self.order_dao.update_with_patch(order.biobankOrderId, restore_order, order.version)
      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 2)
示例#7
0
 def _insert_order(self,
                   participant,
                   order_id,
                   tests,
                   order_time,
                   finalized_tests=None,
                   kit_id=None,
                   tracking_number=None,
                   collected_note=None,
                   processed_note=None,
                   finalized_note=None):
     order = BiobankOrder(biobankOrderId=order_id,
                          participantId=participant.participantId,
                          sourceSiteId=1,
                          finalizedSiteId=2,
                          collectedSiteId=1,
                          finalizedUsername='******',
                          created=order_time,
                          collectedNote=collected_note,
                          processedNote=processed_note,
                          finalizedNote=finalized_note,
                          samples=[])
     id_1 = BiobankOrderIdentifier(
         system="https://orders.mayomedicallaboratories.com",
         value=order_id)
     id_2 = BiobankOrderIdentifier(system="https://www.pmi-ops.org",
                                   value='O%s' % order_id)
     order.identifiers.append(id_1)
     order.identifiers.append(id_2)
     if kit_id:
         order.identifiers.append(
             BiobankOrderIdentifier(system=_KIT_ID_SYSTEM, value=kit_id))
     if tracking_number:
         order.identifiers.append(
             BiobankOrderIdentifier(system=_TRACKING_NUMBER_SYSTEM,
                                    value=tracking_number))
     for test_code in tests:
         finalized_time = order_time
         if finalized_tests and not test_code in finalized_tests:
             finalized_time = None
         order.samples.append(
             BiobankOrderedSample(biobankOrderId=order.biobankOrderId,
                                  test=test_code,
                                  description=u'test',
                                  processingRequired=False,
                                  collected=order_time,
                                  processed=order_time,
                                  finalized=finalized_time))
     return self.order_dao.insert(order)
示例#8
0
    def test_schema_biobank_order_and_datetime_roundtrip(self):
        bo_id = 1
        now = isodate.parse_datetime('2016-01-04T10:28:50-04:00')

        write_session = self.database.make_session()

        p = self._create_participant(write_session)
        site = Site(siteId=1,
                    siteName='site',
                    googleGroup='*****@*****.**',
                    mayolinkClientNumber=12345,
                    hpoId=1)
        write_session.add(site)
        write_session.commit()

        bo = BiobankOrder(biobankOrderId=bo_id,
                          participantId=p.participantId,
                          created=now,
                          sourceSiteId=1,
                          version=1,
                          sourceUsername='******',
                          collectedSiteId=1,
                          collectedUsername='******',
                          processedSiteId=1,
                          processedUsername='******',
                          finalizedSiteId=1,
                          finalizedUsername='******',
                          collectedNote=r'written by ' + self.fake.last_name(),
                          processedNote=u'd',
                          finalizedNote=u'e',
                          logPosition=LogPosition())
        bo.identifiers.append(BiobankOrderIdentifier(system='a', value='b'))
        bo.samples.append(
            BiobankOrderedSample(test='a',
                                 description=u'a test invented by ' +
                                 self.fake.first_name(),
                                 processingRequired=True,
                                 collected=now,
                                 processed=now,
                                 finalized=now))
        write_session.add(bo)
        write_session.commit()

        read_session = self.database.make_session()
        bo = read_session.query(BiobankOrder).get(bo_id)
        self.assertEquals(
            bo.created.isoformat(),
            now.astimezone(tzutc()).replace(tzinfo=None).isoformat())
示例#9
0
 def _add_samples(cls, order, resource):
     all_tests = sorted([s.test for s in resource.samples])
     if len(set(all_tests)) != len(all_tests):
         raise BadRequest('Duplicate test in sample list for order: %s.' %
                          (all_tests, ))
     for s in resource.samples:
         order.samples.append(
             BiobankOrderedSample(biobankOrderId=order.biobankOrderId,
                                  test=s.test,
                                  description=s.description,
                                  processingRequired=s.processing_required,
                                  collected=s.collected
                                  and s.collected.date,
                                  processed=s.processed
                                  and s.processed.date,
                                  finalized=s.finalized
                                  and s.finalized.date))
    def insert_biobank_order(self, pid, resource):
        obj = BiobankOrder()
        obj.participantId = long(pid)
        obj.created = clock.CLOCK.now()
        obj.created = datetime.datetime.now()
        obj.orderStatus = BiobankOrderStatus.UNSET
        obj.biobankOrderId = resource['biobankOrderId']
        test = self.get(resource['id'])
        obj.dvOrders = [test]

        bod = BiobankOrderDao()
        obj.samples = [
            BiobankOrderedSample(test='1SAL2',
                                 processingRequired=False,
                                 description=u'salivary pilot kit')
        ]
        self._add_identifiers_and_main_id(obj, ObjectView(resource))
        bod.insert(obj)
  def test_amending_order_participant_summary(self):
    ParticipantSummaryDao().insert(self.participant_summary(self.participant))
    order_1 = self.dao.insert(self._make_biobank_order())
    amended_info = self._get_amended_info(order_1)
    amended_info.sourceSiteId = 2
    samples = [BiobankOrderedSample(
      test=self._B_TEST, processingRequired=True, description=u'new sample')]
    amended_info.samples = samples
    with self.dao.session() as session:
      self.dao._do_update(session, amended_info, order_1)

    amended_order = self.dao.get(1)
    self.assertEqual(amended_order.version, 2)

    ps_dao = ParticipantSummaryDao().get(self.participant.participantId)
    self.assertEqual(ps_dao.sampleOrderStatus2ED10, OrderStatus.CREATED)
    self.assertEqual(ps_dao.sampleOrderStatus1ED10, OrderStatus.FINALIZED)
    self.assertEqual(ps_dao.numberDistinctVisits, 1)
  def test_qa_scenarios_for_pmb_visits(self):
    """ PDR at https://docs.google.com/document/d/1sL54f-I91RvhjIprrdbwD8TlR9Jq91MX2ELf1EtJdxc/edit#heading=h.bqo8kt3igsrw<Paste> """
    self.participant = self._insert(Participant(participantId=6, biobankId=66))

    # test scenario 1
    with clock.FakeClock(TIME_4):
      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_4.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=666,
                                                                   participantId=self.participant.participantId,
                                                                   finalized=TIME_4))
      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

    with clock.FakeClock(TIME_5):
      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_5.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=669,
                                                                   finalized=TIME_5))
      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 2)

    # test scenario 2
    with clock.FakeClock(TIME_6):
      self.participant = self._insert(Participant(participantId=9, biobankId=13))
      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_6.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=8,
                                                                   finalized=TIME_6))
      self.order_dao.insert(self._make_biobank_order(biobankOrderId='2', identifiers=[
        BiobankOrderIdentifier(system='b', value='d')], samples=[BiobankOrderedSample(
                                                        biobankOrderId='2',
                                                        finalized=TIME_7,
                                                        test=BIOBANK_TESTS[0],
                                                        description='description',
                                                        processingRequired=True)]))


      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 2
      self.assertEquals(summary.numberDistinctVisits, 2)

    # test scenario 3
    with clock.FakeClock(TIME_6):
      self.participant = self._insert(Participant(participantId=66, biobankId=42))
      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_6.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=12,
                                                                   createdSiteId=2,
                                                                   finalized=TIME_6))

      self.order_dao.insert(self._make_biobank_order(biobankOrderId='18', finalizedSiteId=1, identifiers=[
          BiobankOrderIdentifier(system='x', value='y')], samples=[BiobankOrderedSample(
              biobankOrderId='18',
              finalized=TIME_6,
              test=BIOBANK_TESTS[0],
              description='description',
              processingRequired=True)]))


      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 1
      self.assertEquals(summary.numberDistinctVisits, 1)

    # test scenario 4
    with clock.FakeClock(TIME_8):
      self.participant = self._insert(Participant(participantId=6613, biobankId=142))
      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_8.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=129,
                                                                   finalized=TIME_8))

      order = self.order_dao.insert(self._make_biobank_order(biobankOrderId='999', identifiers=[
          BiobankOrderIdentifier(system='s', value='s')], samples=[BiobankOrderedSample(
              biobankOrderId='999',
              finalized=TIME_8,
              test=BIOBANK_TESTS[1],
              description='description',
              processingRequired=True)]))
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 1
      self.assertEquals(summary.numberDistinctVisits, 1)

     # change finalized time, recalculating count
      with self.order_dao.session() as session:
        existing_order = copy.deepcopy(order)
        order.samples[0].finalized = TIME_9
        self.order_dao._do_update(session, order, existing_order)

      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

     # change test, should not change count.
      with self.order_dao.session() as session:
        existing_order = copy.deepcopy(order)
        order.samples[0].test = BIOBANK_TESTS[0]
        self.order_dao._do_update(session, order, existing_order)

      summary = self.dao.get(self.participant.participantId)
      self.assertEquals(summary.numberDistinctVisits, 1)

    # test scenario 5
    with clock.FakeClock(TIME_12):
      self.participant = self._insert(Participant(participantId=3000, biobankId=2019))

      self.order_dao.insert(self._make_biobank_order(biobankOrderId='700', identifiers=[
          BiobankOrderIdentifier(system='n', value='s')], samples=[BiobankOrderedSample(
              biobankOrderId='700',
              finalized=TIME_10,
              test=BIOBANK_TESTS[1],
              description='description',
              processingRequired=True)]))
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 1
      self.assertEquals(summary.numberDistinctVisits, 1)

      other_order = self.order_dao.insert(self._make_biobank_order(biobankOrderId='701', identifiers=[
          BiobankOrderIdentifier(system='n', value='t')], samples=[BiobankOrderedSample(
              biobankOrderId='701',
              finalized=TIME_11,
              test=BIOBANK_TESTS[1],
              description='description',
              processingRequired=True)]))
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 2
      self.assertEquals(summary.numberDistinctVisits, 2)

      order = self.order_dao.insert(self._make_biobank_order(biobankOrderId='702', identifiers=[
          BiobankOrderIdentifier(system='n', value='u')], samples=[BiobankOrderedSample(
              biobankOrderId='702',
              finalized=TIME_12,
              test=BIOBANK_TESTS[1],
              description='description',
              processingRequired=True)]))
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 3
      self.assertEquals(summary.numberDistinctVisits, 3)

      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_12.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=120,
                                                                   finalized=TIME_12))

      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 3
      self.assertEquals(summary.numberDistinctVisits, 3)
      cancel_request = cancel_biobank_order()
      # cancel biobank order with PM on same day
      self.order_dao.update_with_patch(order.biobankOrderId, cancel_request, order.version)
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 3 (the PM on same day still counts)
      self.assertEquals(summary.numberDistinctVisits, 3)

      self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                               TIME_1.isoformat()))
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=150,
                                                                   finalized=TIME_1))
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 4
      self.assertEquals(summary.numberDistinctVisits, 4)
      # cancel order with pm on different day
      self.order_dao.update_with_patch(other_order.biobankOrderId, cancel_request, order.version)
      summary = self.dao.get(self.participant.participantId)
      # distinct count should be 3
      self.assertEquals(summary.numberDistinctVisits, 3)
  def testNumberDistinctVisitsCounts(self):
    self.participant = self._insert(Participant(participantId=7, biobankId=77))
    # insert biobank order
    order = self.order_dao.insert(self._make_biobank_order())
    summary = self.dao.get(self.participant.participantId)
    self.assertEquals(summary.numberDistinctVisits, 1)
    cancel_request = cancel_biobank_order()
    # cancel biobank order
    self.order_dao.update_with_patch(order.biobankOrderId, cancel_request, order.version)
    summary = self.dao.get(self.participant.participantId)
    # distinct count should be 0
    self.assertEquals(summary.numberDistinctVisits, 0)

    self.measurement_json = json.dumps(load_measurement_json(self.participant.participantId,
                                                             TIME_1.isoformat()))
    # insert physical measurement
    measurement = self.measurement_dao.insert(self._make_physical_measurements())
    summary = self.dao.get(self.participant.participantId)
    # count should be 1
    self.assertEquals(summary.numberDistinctVisits, 1)

    # cancel the measurement
    cancel_measurement = get_restore_or_cancel_info()
    with self.measurement_dao.session() as session:
      self.measurement_dao.update_with_patch(measurement.physicalMeasurementsId, session,
                                             cancel_measurement)

    summary = self.dao.get(self.participant.participantId)
    # count should be 0
    self.assertEquals(summary.numberDistinctVisits, 0)

    with clock.FakeClock(TIME_1):
      self.order_dao.insert(self._make_biobank_order(biobankOrderId='2', identifiers=[
        BiobankOrderIdentifier(system='b', value='d')], samples=[BiobankOrderedSample(
                                                        biobankOrderId='2',
                                                        test=BIOBANK_TESTS[0],
                                                        description='description',
                                                        processingRequired=True)]))
    with clock.FakeClock(TIME_2):
      self.measurement_dao.insert(self._make_physical_measurements(
        physicalMeasurementsId=2))
      summary = self.dao.get(self.participant.participantId)

      # A PM on another day should add a new distinct count.
      self.assertEquals(summary.numberDistinctVisits, 2)

    with clock.FakeClock(TIME_3):
      self.order_dao.insert(self._make_biobank_order(biobankOrderId='3', identifiers=[
        BiobankOrderIdentifier(system='s', value='s')], samples=[BiobankOrderedSample(
        biobankOrderId ='3',
        finalized=TIME_3,
        test=BIOBANK_TESTS[1],
        description='another description',
        processingRequired=False)]))

      # a physical measurement on same day as biobank order does not add distinct visit.
      self.measurement_dao.insert(self._make_physical_measurements(physicalMeasurementsId=6))

      # another biobank order on the same day should also not add a distinct visit
      self.order_dao.insert(self._make_biobank_order(biobankOrderId='7', identifiers=[
          BiobankOrderIdentifier(system='x', value='x')], samples=[BiobankOrderedSample(
              biobankOrderId ='7',
              finalized=TIME_3,
              test=BIOBANK_TESTS[1],
              description='another description',
              processingRequired=False)]))

      summary = self.dao.get(self.participant.participantId)
      # 1 from each of TIME_1 TIME_2 TIME_3
      self.assertEquals(summary.numberDistinctVisits, 3)