private void addToObsGroup(Obs obsGroup, Obs member) {
   member.setPerson(obsGroup.getPerson());
   member.setObsDatetime(obsGroup.getObsDatetime());
   member.setLocation(obsGroup.getLocation());
   member.setEncounter(obsGroup.getEncounter());
   obsGroup.addGroupMember(member);
 }
  /** @see org.openmrs.api.EncounterService#saveEncounter(org.openmrs.Encounter) */
  public Encounter saveEncounter(Encounter encounter) throws APIException {

    // if authenticated user is not supposed to edit encounter of certain type
    if (!canEditEncounter(encounter, null)) {
      throw new APIException(
          "Encounter.error.privilege.required.edit",
          new Object[] {encounter.getEncounterType().getEditPrivilege()});
    }

    // If new encounter, try to assign a visit using the registered visit assignment handler.
    if (encounter.getEncounterId() == null) {

      // Am using Context.getEncounterService().getActiveEncounterVisitHandler() instead of just
      // getActiveEncounterVisitHandler() for modules which may want to AOP around this call.
      EncounterVisitHandler encounterVisitHandler =
          Context.getEncounterService().getActiveEncounterVisitHandler();
      if (encounterVisitHandler != null) {
        encounterVisitHandler.beforeCreateEncounter(encounter);

        // If we have been assigned a new visit, persist it.
        if (encounter.getVisit() != null && encounter.getVisit().getVisitId() == null) {
          Context.getVisitService().saveVisit(encounter.getVisit());
        }
      }
    }

    boolean isNewEncounter = false;
    Date newDate = encounter.getEncounterDatetime();
    Date originalDate = null;
    Location newLocation = encounter.getLocation();
    Location originalLocation = null;
    // check permissions
    if (encounter.getEncounterId() == null) {
      isNewEncounter = true;
      Context.requirePrivilege(PrivilegeConstants.ADD_ENCOUNTERS);
    } else {
      Context.requirePrivilege(PrivilegeConstants.EDIT_ENCOUNTERS);
    }

    // This must be done after setting dateCreated etc on the obs because
    // of the way the ORM tools flush things and check for nullity
    // This also must be done before the save encounter so we can use the
    // orig date
    // after the save
    Patient p = encounter.getPatient();

    if (!isNewEncounter) {
      // fetch the datetime from the database prior to saving for this
      // encounter
      // to see if it has changed and change all obs after saving if so
      originalDate = dao.getSavedEncounterDatetime(encounter);
      if (encounter.getLocation() != null) {
        originalLocation = dao.getSavedEncounterLocation(encounter);
      }
      // Our data model duplicates the patient column to allow for
      // observations to
      // not have to look up the parent Encounter to find the patient
      // Therefore, encounter.patient must always equal
      // encounter.observations[0-n].patient

      // If we are changing encounter.encounterDatetime, then we need to
      // also apply that
      // to Obs that inherited their obsDatetime from the encounter in the
      // first place

      for (Obs obs : encounter.getAllObs(true)) {
        // if the date was changed
        if (OpenmrsUtil.compare(originalDate, newDate) != 0
            && OpenmrsUtil.compare(obs.getObsDatetime(), originalDate) == 0) {

          // if the obs datetime is the same as the
          // original encounter datetime, fix it
          obs.setObsDatetime(newDate);
        }

        if (!OpenmrsUtil.nullSafeEquals(newLocation, originalLocation)
            && obs.getLocation().equals(originalLocation)) {
          obs.setLocation(newLocation);
        }

        // if the Person in the obs doesn't match the Patient in the
        // encounter, fix it
        if (!obs.getPerson().getPersonId().equals(p.getPatientId())) {
          obs.setPerson(p);
        }
      }
    }
    // same goes for Orders
    for (Order o : encounter.getOrders()) {
      if (!p.equals(o.getPatient())) {
        o.setPatient(p);
      }
    }

    // do the actual saving to the database
    dao.saveEncounter(encounter);

    // save the new orders
    for (Order o : encounter.getOrders()) {
      if (o.getOrderId() == null) {
        Context.getOrderService().saveOrder(o, null);
      }
    }
    return encounter;
  }