}
	if beforeUpdateCall != 1 {
		t.Fatalf("before update should not be called")
	}

	err = DB.Model([1]*Product5{&p}).Update("name", "update_name_3").Error
	if err != nil {
		t.Fatalf("should update success, but got err %v", err)
	}
	if beforeUpdateCall != 2 {
		t.Fatalf("before update should be called")
	}

	err = DB.Model([1]Product5{p}).Update("name", "update_name_4").Error

	}
	lastUpdatedAt = user.UpdatedAt

	if err := DB.Model(user).Update("Age", 10).Error; err != nil {
		t.Errorf("errors happened when update: %v", err)
	} else if user.Age != 10 {
		t.Errorf("Age should equals to 10, but got %v", user.Age)
	}
	checkUpdatedAtChanged("Update", user.UpdatedAt)
	checkOtherData("Update")

	var result User
	if err := DB.Where("id = ?", user.ID).First(&result).Error; err != nil {

  protected abstract void update(byte b);

  /** Updates this hasher with the given bytes. */
  protected void update(byte[] b) {
    update(b, 0, b.length);
  }

  /** Updates this hasher with {@code len} bytes starting at {@code off} in the given buffer. */
  protected void update(byte[] b, int off, int len) {
    for (int i = off; i < off + len; i++) {
      update(b[i]);
    }
  }

		cusUser := CustomizeUser{
			Name: "update-has-one-associations",
			Account: CustomizeAccount{
				Number:  number,
				Number2: number,
			},
		}

		if err := DB.Create(&cusUser).Error; err != nil {
			t.Fatalf("errors happened when create: %v", err)
		}
		cusUser.Account.Number += "-update"
		cusUser.Account.Number2 += "-update"

	if rows != 0 {
		t.Fatalf("expected 0 rows affected for association-only update, got %d", rows)
	}

	// Verify the association was created using real database query
	AssertAssociationCount(t, &user, "Pets", 1, "after Set Update with association")
}

// Test Set + Update with Association OpCreate operation using real database
func TestClauseAssociationSetUpdateWithOpCreate(t *testing.T) {

)

func TestUpdateHasManyAssociations(t *testing.T) {
	user := *GetUser("update-has-many", Config{})

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	user.Pets = []*Pet{{Name: "pet1"}, {Name: "pet2"}}
	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user2 User
	DB.Preload("Pets").Find(&user2, "id = ?", user.ID)

	user := *GetUser("update-belongs-to", Config{})

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	user.Company = Company{Name: "company-belongs-to-association"}
	user.Manager = &User{Name: "manager-belongs-to-association"}
	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user2 User

    if (listeners == expect) {
      listeners = update;
      return true;
    }
    return false;
  }

  final @Nullable Listener gasListeners(Listener update) {
    Listener old = listeners;
    listeners = update;
    return old;
  }

  static boolean casValue(AbstractFutureState<?> future, @Nullable Object expect, Object update) {
    if (future.value == expect) {

                return 5;
            }
        });

        ComponentUtil.register(new KeyMatchHelper() {
            @Override
            public void update() {
                // Mock update
            }
        }, "keyMatchHelper");

        String result = crawlJob.execute();

        assertNotNull(result);
        assertTrue(result.contains("Session Id:"));

{* ../../docs_src/body_updates/tutorial002_py310.py hl[32] *}

### Using Pydantic's `update` parameter { #using-pydantics-update-parameter }

Now, you can create a copy of the existing model using `.model_copy()`, and pass the `update` parameter with a `dict` containing the data to update.

Like `stored_item_model.model_copy(update=update_data)`:

{* ../../docs_src/body_updates/tutorial002_py310.py hl[33] *}