@Test
  public void test_jsonWithPersistenceContext() {

    ResetBasicData.reset();

    List<Order> orders =
        Ebean.find(Order.class)
            .fetch("customer", "id, name")
            .where()
            .eq("customer.id", 1)
            .findList();

    String json = Ebean.json().toJson(orders);

    List<Order> orders1 = Ebean.json().toList(Order.class, json);

    Customer customer = null;
    for (Order order : orders1) {
      Customer tempCustomer = order.getCustomer();
      if (customer == null) {
        customer = tempCustomer;
      } else {
        assertThat(tempCustomer).isSameAs(customer);
      }
    }
  }
Exemplo n.º 2
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  public void testForUpdate() {
    ResetBasicData.reset();

    Query<Order> query =
        Ebean.find(Order.class)
            .setAutofetch(false)
            .setForUpdate(false)
            .setMaxRows(1)
            .order()
            .asc("orderDate")
            .order()
            .desc("id");

    int rc = query.findList().size();
    Assert.assertTrue(rc > 0);
    Assert.assertTrue(!query.getGeneratedSql().toLowerCase().contains("for update"));

    query =
        Ebean.find(Order.class)
            .setAutofetch(false)
            .setForUpdate(true)
            .setMaxRows(1)
            .order()
            .asc("orderDate")
            .order()
            .desc("id");

    rc = query.findList().size();
    Assert.assertTrue(rc > 0);
    Assert.assertTrue(query.getGeneratedSql().toLowerCase().contains("for update"));
  }
 /**
  * Mark the specified action as completed
  *
  * @param transactionId the unique transaction id for this action
  * @param scheduledActionUuid the unique name of an action
  */
 private void markAsCompleted(String transactionId, String scheduledActionUuid) {
   try {
     Ebean.beginTransaction();
     SchedulerState schedulerState =
         SchedulerState.getRunningSchedulerStateFromTransactionId(transactionId);
     if (schedulerState == null) {
       log.error(
           String.format(
               "Strange ... No running scheduled action for %s with transaction id %s while one was running and mark as completed is requested",
               scheduledActionUuid, transactionId));
     } else {
       schedulerState.isRunning = false;
       schedulerState.save();
       if (log.isDebugEnabled()) {
         log.debug(
             String.format(
                 "Scheduled action for %s with transaction id %s completed",
                 scheduledActionUuid, transactionId));
       }
     }
     Ebean.commitTransaction();
   } catch (Exception e) {
     log.error("Failed to mark as complete", e);
     rollbackTransactionSilent();
   } finally {
     endTransactionSilent();
   }
 }
  @Test
  public void RawSqlParentLoad() {
    List<Data> exampleData = new ArrayList<>();
    exampleData.add(new Data(0));
    exampleData.add(new Data(1));
    exampleData.add(new Data(2));

    ChildA a = new ChildA(0);
    a.setData(exampleData);
    Ebean.save(a);

    ChildB b = new ChildB(1);
    b.setData(exampleData);
    Ebean.save(b);

    ChildA c = new ChildA(2);
    c.setData(exampleData);
    Ebean.save(c);

    RawSql rawSql =
        RawSqlBuilder.parse("select type, id, number from parent where number > 1").create();
    List<Parent> partial = Ebean.find(Parent.class).setRawSql(rawSql).findList();
    assertNotNull(partial.get(0).getData());
    assertEquals(partial.get(0).getData().get(0).getNumber().intValue(), 0);
  }
Exemplo n.º 5
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  public void testNoIdQuery() {

    Update<NoIdEntity> upd = Ebean.createUpdate(NoIdEntity.class, "delete from NoIdEntity");
    upd.execute();

    NoIdEntity e0 = new NoIdEntity();
    e0.setId(1);
    e0.setValue("one");

    NoIdEntity e1 = new NoIdEntity();
    e1.setId(2);
    e1.setValue("two");

    Ebean.save(e0);
    Ebean.save(e1);

    List<NoIdEntity> list = Ebean.createNamedQuery(NoIdEntity.class, "noid").findList();

    Assert.assertEquals(2, list.size());
    NoIdEntity noIdEntity0 = list.get(0);
    Assert.assertNotNull(noIdEntity0);
    Assert.assertEquals(noIdEntity0.getValue(), "one");

    NoIdEntity noIdEntity1 = list.get(1);
    Assert.assertNotNull(noIdEntity1);
    Assert.assertEquals(noIdEntity1.getValue(), "two");
  }
  public void test() {

    TSMaster m0 = new TSMaster();
    m0.setName("m1");

    m0.addDetail(new TSDetail("m1 detail 1"));
    m0.addDetail(new TSDetail("m1 detail 2"));

    Ebean.save(m0);

    TSMaster master = Ebean.find(TSMaster.class, m0.getId());
    List<TSDetail> details = master.getDetails();

    TSDetail removedDetail = details.remove(1);

    BeanCollection<?> bc = (BeanCollection<?>) details;
    Set<?> modifyRemovals = bc.getModifyRemovals();

    Assert.assertNotNull(modifyRemovals);
    Assert.assertTrue(modifyRemovals.size() == 1);
    Assert.assertTrue(modifyRemovals.contains(removedDetail));

    Ebean.save(master);

    TSMaster masterReload = Ebean.find(TSMaster.class, m0.getId());
    List<TSDetail> detailsReload = masterReload.getDetails();

    // the removed bean has really been removed
    Assert.assertTrue(detailsReload.size() == 1);

    TSMaster master3 = Ebean.find(TSMaster.class, m0.getId());
    List<TSDetail> details3 = master3.getDetails();
    details3.clear();
  }
Exemplo n.º 7
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  /** Function to be called before delete */
  private void onPreDelete() {
    List<Association> associations = AssociationFinder.findAssociations(this.getClass());
    for (Association assoc : associations) {

      // Ignore if the class has the ignore on the field
      if (assoc.clazz.getAnnotation(CascadeIgnore.class) == null
          && assoc.field.getAnnotation(CascadeIgnore.class) == null) {

        List<? extends Model> childModels =
            Ebean.createQuery(assoc.clazz)
                .where()
                .eq(assoc.field.getName() + ".id", getId())
                .findList();
        for (Model child : childModels) {
          // If it is required, delete it, otherwise set it to null
          if (assoc.required) {
            child.delete();
          } else {
            try {
              assoc.field.set(child, null);
              Set<String> set = new HashSet<String>();
              set.add(assoc.field.getName());
              Ebean.update(child, set);
            } catch (IllegalAccessException e) {
              e
                  .printStackTrace(); // To change body of catch statement use File | Settings |
                                      // File Templates.
            }
          }
        }
      }
    }
  }
  public static void update(Long idGroup, List<SqlRow> gpms) {
    Group group = Group.findById(idGroup);
    if (group == null) return;

    Ebean.beginTransaction();
    try {
      deleteForGroup(idGroup);

      Integer i = 1;
      for (SqlRow man : gpms) {
        Profile prof = Profile.lastProfileByGpmId(man.getLong("gpm"));
        if (prof == null) continue;

        CacheClassifier cc =
            new CacheClassifier(
                group,
                i++,
                prof.gpm.idGpm,
                prof.name,
                prof.image,
                (prof.gender == null) ? null : prof.gender.value,
                (prof.relationshipStatus == null) ? null : prof.relationshipStatus.status,
                prof.nFollowers);
        if (cc.name == null || cc.name.isEmpty())
          cc.name = Profile.getLastNotEmptyField(prof.gpm.id, "name");
        cc.save();
      }

      Ebean.commitTransaction();
    } finally {
      Ebean.endTransaction();
    }
  }
Exemplo n.º 9
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  @Test
  public void testBasicOperations() {

    Account e = buildAccount(-1);

    // Get the default EbeanServer and save
    EbeanServer server = Ebean.getServer(null);
    server.save(e);
    Assert.assertNotNull(e.getId());

    e.setEmail("banana");
    server.update(e);

    // find by id
    Account e2 = server.find(Account.class, e.getId());
    Assert.assertNotNull("we found it in the db", e2);
    Assert.assertTrue("different instance", e2 != e);
    Assert.assertEquals("updated description", "banana", e2.getEmail());

    server.delete(e2);

    Account e3 = server.find(Account.class, e.getId());
    Assert.assertNull("its been deleted", e3);

    Query<Card> query = Ebean.find(Card.class);
  }
  @Transactional
  public void doSomething(EBasicVer v) {

    EbeanServer server = Ebean.getServer(null);

    inMethodTransaction = server.currentTransaction();

    Transaction t = server.createTransaction();
    SqlUpdate u =
        server.createSqlUpdate("update e_basicver set last_update = last_update+1 where id = ?");
    u.setParameter(1, v.getId());
    int count = server.execute(u, t);
    Assert.assertEquals(1, count);

    t.commit();

    v.setName("some change");
    try {
      Ebean.save(v);
      // never get here
      Assert.assertTrue(false);
    } catch (PersistenceException e) {
      throw e;
    }
  }
  @Override
  public void deleteCarouselImage(Long id) throws NotFoundException {
    // We use explicit transactions, since we are going to execute more than
    // 1 query in the same transaction
    Ebean.beginTransaction();
    try {
      // We see if the carouselImage really exists
      if (finder.byId(id) == null)
        throw new NotFoundException("La imagen no existe asi que no se puede borrar");

      // We delete it
      finder.byId(id).delete();

      // Now we need to reorder all the carouselImages
      for (CarouselImage ci : finder.orderBy("id").findList()) {
        if (ci.getId() > id) {
          // We insert a copy of the ci in the previous position
          CarouselImage ciCopy = (CarouselImage) ci._ebean_createCopy();
          ciCopy.setId(ci.getId() - 1);
          ciCopy.save();
          // Then we delete the ci
          ci.delete();
        }
      }

      Ebean.commitTransaction();

    } finally {
      Ebean.endTransaction();
    }
  }
  @Override
  public void addCarouselImage(CarouselImage carouselImage) {
    // We use explicit transactions, since we are going to execute more than
    // 1 query in the same transaction
    Ebean.beginTransaction();
    try {
      // We set atomatically the caroueselImage id, in order to be the
      // first one
      carouselImage.setId((long) 1);

      List<CarouselImage> carouselImages = finder.orderBy().desc("id").findList();

      for (CarouselImage ci : carouselImages) {
        // We insert a copy of the ci in the next position
        CarouselImage ciCopy = (CarouselImage) ci._ebean_createCopy();
        ciCopy.setId(ci.getId() + 1);
        ciCopy.save();
        // Then we delete the ci
        ci.delete();
      }

      // Then we save
      carouselImage.save();
      Ebean.commitTransaction();

    } finally {
      Ebean.endTransaction();
    }
  }
Exemplo n.º 13
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  @Test
  public void testQuery() {

    Car car = new Car();
    car.setLicenseNumber("MARIOS_CAR_LICENSE");
    Ebean.save(car);

    VehicleDriver driver = new VehicleDriver();
    driver.setName("Mario");
    driver.setVehicle(car);
    Ebean.save(driver);

    Query<VehicleDriver> query = Ebean.find(VehicleDriver.class);
    query.where().eq("vehicle.licenseNumber", "MARIOS_CAR_LICENSE");
    List<VehicleDriver> drivers = query.findList();

    Assert.assertNotNull(drivers);
    Assert.assertEquals(1, drivers.size());
    Assert.assertNotNull(drivers.get(0));

    Assert.assertEquals("Mario", drivers.get(0).getName());
    Assert.assertEquals("MARIOS_CAR_LICENSE", drivers.get(0).getVehicle().getLicenseNumber());

    Vehicle car2 = Ebean.find(Vehicle.class, car.getId());

    car2.setLicenseNumber("test");
    Ebean.save(car);
  }
Exemplo n.º 14
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 public static Result save() {
   Form<FastSubject> fastSubjectForm = Form.form(FastSubject.class).bindFromRequest();
   FastSubject fastSubject = fastSubjectForm.get();
   if (fastSubject.id == null) Ebean.save(fastSubject);
   else Ebean.update(fastSubject);
   FlashMessage.updateSuccess.send();
   return redirect(routes.FastSubjects.edit(fastSubject.id));
 }
Exemplo n.º 15
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 @Override
 public void onStart(Application app) {
   // Check if the database is empty
   if (User.finder.findRowCount() == 0) {
     Map<String, List<Object>> all = (Map<String, List<Object>>) Yaml.load("initial-data.yml");
     Ebean.save(all.get("users"));
     Ebean.save(all.get("projects"));
     Ebean.save(all.get("tasks"));
   }
 }
Exemplo n.º 16
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 @Transactional
 public static boolean revokeAccount(String email) {
   if (((List) OrderTire.findByUserAndNotInInitiated(email)).size() == 0) {
     Ebean.delete(OrderTire.findByUser(email));
     Ebean.delete(User.findByEmail(email));
     return true;
   } else {
     return false;
   }
 }
  public void test() {

    ResetBasicData.reset();

    Query<Order> query =
        Ebean.find(Order.class)
            .where()
            .eq("status", Order.Status.NEW)
            .ge("id", 1)
            .order()
            .desc("id");

    int rc0 = query.findRowCount();

    List<Object> ids = query.findIds();
    Assert.assertEquals(rc0, ids.size());

    List<Order> list0 = query.findList();
    Assert.assertEquals(rc0, list0.size());

    int rc1 = query.findRowCount();
    Assert.assertEquals(rc0, rc1);

    List<Object> ids1 = query.findIds();
    Assert.assertEquals(rc0, ids1.size());

    List<Order> list1 = query.findList();
    Assert.assertEquals(rc0, list1.size());

    int idGt = 5;
    if (ids1.size() > 0) {
      Object id = ids.get(0);
      idGt = Integer.valueOf("" + id);
    }

    // should still hit query plan cache
    Query<Order> query2 =
        Ebean.find(Order.class)
            .where()
            .eq("status", Order.Status.NEW)
            .ge("id", idGt)
            .order()
            .desc("id");

    int rc2 = query2.findRowCount();

    System.out.println("Expection Not same " + rc0 + " != " + rc2);
    Assert.assertNotSame(rc0, rc2);

    List<Object> ids2 = query2.findIds();
    Assert.assertEquals(rc2, ids2.size());

    List<Order> list2 = query2.findList();
    Assert.assertEquals(rc2, list2.size());
  }
Exemplo n.º 18
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  @Test
  public void testConnection() {

    String sql = "select count(*) as count from journal";
    SqlRow row = Ebean.createSqlQuery(sql).findUnique();

    Integer i = row.getInteger("count");

    List<Journal> journal = Ebean.find(Journal.class).findList();
    assertNotNull(journal);
  }
Exemplo n.º 19
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  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    log("new received ack message");

    // start connection if it did not
    DB.instance().connectToDB();

    // read sessionId
    String sessionId = request.getParameter("sessionId");

    // find user with this sessionId
    List<ChatUser> chatUsers =
        Ebean.find(ChatUser.class).where().eq("sessionId", sessionId).findList();

    // define the response message
    String responseMessage = "{}";

    // this user has a sessionId
    if (chatUsers.size() == 1) {

      // current chat user
      ChatUser chatUser = chatUsers.get(0);

      log("found user for this sessionId, chatUser: "******"messageId");

      List<ChatMessage> chatMessages =
          Ebean.find(ChatMessage.class).where().eq("messageId", messageId).findList();
      if (chatMessages.size() == 1) {
        ChatMessage chatMessage = chatMessages.get(0);
        log("received message found, chatMessage: " + chatMessage);
        // update the status to message's last status, this message is send, received and
        // acknowledged, notified and acknowledged
        chatMessage.setStatus(ChatMessage.SOURCE_SAID_IT_KNOWS_THIS_MESSAGE_IS_DELIVERED);
        Ebean.update(chatMessage);
        log("received message updated, chatMessage: " + chatMessage);
      }
      responseMessage = "{\"status\":\"acknowledged\", \"messageId\":\"" + messageId + "\"}";
    }

    // send response
    response.setContentType("application/json");
    PrintWriter out = response.getWriter();
    out.print(responseMessage);
    out.flush();
    out.close();

    log("done");
  }
  public void runExampleUsingOrders() {

    LoadExampleData.load();

    PathProperties pathProperties =
        PathProperties.parse("(id,status,orderDate,customer(id,name),details(*,product(sku)))");

    Query<Order> query = Ebean.createQuery(Order.class);
    pathProperties.apply(query);

    List<Order> orders = query.where().gt("id", 1).findList();

    String rawJson = Ebean.json().toJson(orders);
    System.out.println(rawJson);
  }
Exemplo n.º 21
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  @Test
  public void testInsert() {

    SomePeriodBean bean = new SomePeriodBean();
    bean.setPeriod(Period.of(3, 4, 5));
    bean.setAnniversary(MonthDay.of(4, 29));
    Ebean.save(bean);

    SomePeriodBean bean1 = Ebean.find(SomePeriodBean.class, bean.getId());
    assertEquals(bean.getPeriod(), bean1.getPeriod());
    assertEquals(bean.getAnniversary(), bean1.getAnniversary());

    // insert fetch null value
    SomePeriodBean bean2 = new SomePeriodBean();
    Ebean.save(bean2);

    SomePeriodBean bean3 = Ebean.find(SomePeriodBean.class, bean2.getId());
    assertNull(bean3.getPeriod());
    assertNull(bean3.getAnniversary());

    List<SomePeriodBean> anniversaryList =
        Ebean.find(SomePeriodBean.class)
            .where()
            .eq("anniversary", MonthDay.of(4, 29))
            .eq("period_years", 3)
            .eq("period_months", 4)
            .findList();

    assertEquals(1, anniversaryList.size());

    // must use year 2000 for range predicates
    // ... using 2001 here so not finding anything
    anniversaryList =
        Ebean.find(SomePeriodBean.class)
            .where()
            .gt("anniversary", Date.valueOf(LocalDate.of(2001, 4, 29)))
            .findList();

    assertEquals(0, anniversaryList.size());

    // can use year 2000 for range predicates
    // ... and can use LocalDate to bind
    anniversaryList =
        Ebean.find(SomePeriodBean.class)
            .where()
            .gt("anniversary", LocalDate.of(2000, 4, 22))
            .findList();

    assertEquals(1, anniversaryList.size());

    Ebean.delete(bean);
    Ebean.delete(bean2);
  }
  public void test() {

    ResetBasicData.reset();

    try {
      File f = new File("src/test/resources/test1.csv");

      FileReader reader = new FileReader(f);

      CsvReader<Customer> csvReader = Ebean.createCsvReader(Customer.class);

      csvReader.setPersistBatchSize(2);

      csvReader.addIgnore();
      // csvReader.addProperty("id");
      csvReader.addProperty("status");
      csvReader.addProperty("name");
      csvReader.addDateTime("anniversary", "dd-MMM-yyyy", Locale.GERMAN);
      csvReader.addProperty("billingAddress.line1");
      csvReader.addProperty("billingAddress.city");
      csvReader.addReference("billingAddress.country.code");

      csvReader.process(reader);

    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }
Exemplo n.º 23
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 /** Rename a folder */
 public static String renameFolder(String folder, String newName) {
   Ebean.createSqlUpdate("update project set folder = :newName where folder = :folder")
       .setParameter("folder", folder)
       .setParameter("newName", newName)
       .execute();
   return newName;
 }
  public void test() {

    ResetBasicData.reset();

    String sql =
        " select order_id, o.status, c.id, c.name, sum(d.order_qty*d.unit_price) as totalAmount"
            + " from o_order o"
            + " join o_customer c on c.id = o.kcustomer_id "
            + " join o_order_detail d on d.order_id = o.id "
            + " group by order_id, o.status, c.id, c.name ";

    RawSql rawSql =
        RawSqlBuilder.parse(sql)
            .columnMapping("order_id", "order.id")
            .columnMapping("o.status", "order.status")
            .columnMapping("c.id", "order.customer.id")
            .columnMapping("c.name", "order.customer.name")
            // .columnMapping("sum(d.order_qty*d.unit_price)", "totalAmount")
            .create();

    List<OrderAggregate> list2 =
        Ebean.find(OrderAggregate.class)
            .setRawSql(rawSql)
            .fetch("order", new FetchConfig().query())
            .fetch("order.details", new FetchConfig().query())
            .where()
            .gt("order.id", 2)
            .having()
            .gt("totalAmount", 10)
            .filterMany("order.details")
            .gt("unitPrice", 2d)
            .findList();

    output(list2);
  }
Exemplo n.º 25
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  /**
   * 保存分享记录,存在分享记录
   *
   * @param
   */
  public static void updateTuniqueurl(
      final String url, final int time, final String userphoneObject) {

    Ebean.execute(
        new TxRunnable() {
          public void run() {
            Tuniqueurl uniqueurl = Tuniqueurl.findDataById(url);
            // 判断之前是否有用户使用记录,没有使用记录
            if (uniqueurl.userphoneObject == null) {
              uniqueurl.url = url;
              uniqueurl.sharetime = time;
              uniqueurl.userphoneObject = userphoneObject;
              Set<String> options = new HashSet<String>();
              options.add("url");
              options.add("sharetime");
              options.add("userphoneObject");
              Ebean.update(uniqueurl, options);
            } else if (uniqueurl.userphoneObject != null) {
              uniqueurl.url = url;
              uniqueurl.sharetime = time;
              uniqueurl.userphoneObject = uniqueurl.userphoneObject + ',' + userphoneObject;
              Set<String> options = new HashSet<String>();
              options.add("url");
              options.add("sharetime");
              options.add("userphoneObject");
              Ebean.update(uniqueurl, options);
            }
          }
        });
  }
Exemplo n.º 26
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 public static void updatePass(String password, String username) {
   String s = "update neighbors set password= :password where username = :username";
   SqlUpdate update = Ebean.createSqlUpdate(s);
   update.setParameter("password", password);
   update.setParameter("username", username);
   update.execute();
 }
Exemplo n.º 27
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  @AccessLevel(level = 2)
  public Result create() {
    Form<ActivityChoice> choiceForm = Form.form(ActivityChoice.class).bindFromRequest();

    if (choiceForm.hasErrors()) {
      return status(
          ErrDefinition.E_ACTIVITY_CHOICE_FORM_HASERROR, Messages.get("activitychoice.failure"));
    }

    try {
      ActivityChoice choice = choiceForm.get();

      choice.id = CodeGenerator.GenerateUUId();

      choice.content = new ActivityContent();
      choice.content.id = choice.id;

      Ebean.save(choice);

      return ok(Json.toJson(choice));
    } catch (Throwable e) {
      return status(
          ErrDefinition.E_ACTIVITY_CHOICE_CREATE_FAILED, Messages.get("activitychoice.failure"));
    }
  }
  @Test
  public void test_toObject() throws Exception {

    EbeanServer server = Ebean.getDefaultServer();

    JsonContext json = server.json();

    Customer customer = new Customer();
    customer.setId(1);
    customer.setName("Jim");

    String asJson = json.toJson(customer);

    Object bean = json.toObject(Customer.class, asJson);

    assertTrue(bean instanceof Customer);
    assertEquals(Integer.valueOf(1), ((Customer) bean).getId());
    assertEquals("Jim", ((Customer) bean).getName());

    StringReader reader = new StringReader(asJson);
    bean = json.toObject(Customer.class, reader);
    assertTrue(bean instanceof Customer);
    assertEquals(Integer.valueOf(1), ((Customer) bean).getId());
    assertEquals("Jim", ((Customer) bean).getName());
  }
Exemplo n.º 29
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  public Result readAll() {
    try {

      String sql =
          String.format(
              "select id, shop_id, user_id, create_time from shake_record"
                  + " join shop on shop.id = shop_id"
                  + " where shop.app_id = %s",
              session("appId"));

      RawSql rawSql =
          RawSqlBuilder.parse(sql)
              .columnMapping("id", "id")
              .columnMapping("shop_id", "shop_id")
              .columnMapping("user_id", "user_id")
              .columnMapping("create_time", "create_time")
              .create();

      Query<ShakeRecord> query = Ebean.find(ShakeRecord.class);
      query.setRawSql(rawSql);

      List<ShakeRecord> shakeList = query.findList();

      return ok(Json.toJson(shakeList));
    } catch (Throwable e) {
      return status(ErrDefinition.E_SHAKE_RECORD_READ_ERROR, Messages.get("shakerecord.failure"));
    }
  }
  @Test
  public void testCreateGenerator() throws Exception {

    EbeanServer server = Ebean.getDefaultServer();

    StringWriter writer = new StringWriter();
    JsonContext json = server.json();
    JsonGenerator generator = json.createGenerator(writer);

    Customer customer = new Customer();
    customer.setId(1);
    customer.setName("Jim");

    // we can use the generator before and after our json.toJson() call
    // ... confirming we are not closing the generator
    generator.writeStartArray();
    json.toJson(customer, generator, PathProperties.parse("id,name"));
    generator.writeEndArray();
    generator.close();

    String jsonString = writer.toString();
    assertTrue(jsonString, jsonString.startsWith("["));
    assertTrue(jsonString, jsonString.endsWith("]"));
    assertTrue(jsonString, jsonString.contains("{\"id\":1,\"name\":\"Jim\"}"));
  }