if err != nil {
		t.Fatalf("failed to parse product struct with composite primary key, got error %v", err)
	}

	prioritizedPrimaryField := schema.Field{
		Name: "ProductID", DBName: "product_id", BindNames: []string{"ProductID"}, DataType: schema.Uint, PrimaryKey: true, Size: 64, HasDefaultValue: true, AutoIncrement: true, TagSettings: map[string]string{"PRIMARYKEY": "PRIMARYKEY", "AUTOINCREMENT": "AUTOINCREMENT"},
	}

	}

	if DB.First(&Coupon{}, "id = ?", coupon.ID).Error != nil {
		t.Errorf("Failed to query saved coupon")
	}

	if DB.First(&CouponProduct{}, "coupon_id = ? AND product_id = ?", coupon.ID, "full-save-association-product1").Error != nil {
		t.Errorf("Failed to query saved association")
	}

	orders := []Order{{Num: "order1", Coupon: coupon}, {Num: "order2", Coupon: coupon}}

type Product4 struct {
	gorm.Model
	Name  string
	Code  string
	Price int64
	Owner string
	Item  ProductItem
}

type ProductItem struct {
	gorm.Model
	Code               string
	Product4ID         uint
	AfterFindCallTimes int
}

func (pi ProductItem) BeforeCreate(*gorm.DB) error {
	if pi.Code == "invalid" {
		return errors.New("invalid item")
	}
	return nil
}

	AmountOff        uint32           `gorm:"column:amount_off"`
	PercentOff       float32          `gorm:"column:percent_off"`
}

type CouponProduct struct {
	CouponId  int    `gorm:"primarykey;size:255"`
	ProductId string `gorm:"primarykey;size:255"`
	Desc      string
}

type Order struct {
	gorm.Model
	Num      string
	Coupon   *Coupon
	CouponID string
}

type Parent struct {
	gorm.Model

@app.post("/items/")
async def create_item(item: Item, project_id: Annotated[int, Query()]): ...
```

instead of this:

```python
# DO NOT DO THIS
class Item(BaseModel):
    name: str = ...
    description: str | None = None
    price: float = Field(..., gt=0)


app = FastAPI()


@app.post("/items/")
async def create_item(item: Item, project_id: Annotated[int, Query(...)]): ...
```

		t.Fatalf("first or create rows affect err:%v rows:%d", res.Error, res.RowsAffected)
	}
}

func TestCreateWithAutoIncrementCompositeKey(t *testing.T) {
	type CompositeKeyProduct struct {
		ProductID    int `gorm:"primaryKey;autoIncrement:true;"` // primary key
		LanguageCode int `gorm:"primaryKey;"`                    // primary key
		Code         string
		Name         string
	}

///

---

Imaginez que vous êtes l'ordinateur / le programme 🤖 dans cette histoire.

Pendant que vous faites la queue, vous être simplement inactif 😴, attendant votre tour, ne faisant rien de « productif ». Mais la queue est rapide car le serveur 💁 prend seulement les commandes (et ne les prépare pas), donc tout va bien.