Gorm creates form data file upload error

php editor Youzi today introduces to you the problem of uploading error in Gorm creation form data file. During the development process, we often encounter the need to upload files, and Gorm is a powerful ORM library that provides convenient database operation methods. However, when using Gorm for form data file upload, some errors sometimes occur. This article will analyze these errors for you and provide corresponding solutions to help you better deal with this problem.

Question content

I am trying to create records in postgresql server. The request is sent to me as file data in a multipart format. After uploading the file to my side, I call gorm.create but it throws an error.

When I comment out the file upload part, the error disappears, but I need to upload the file.

This is my controller part:

func (pc productcontroller) create(c *gin.context) {

    var product migrations.product

    if err := c.bind(&product); err != nil {
        c.json(400, gin.h{"error": err.error(), "message": "İşlem başarısız. lütfen tekrar deneyiniz veya sistem yöneticinize başvurun. hata kodu: pd-crt-01"})
        return
    }

    if product.name == "" {
        c.json(400, gin.h{"error": "name is required", "message": "İşlem başarısız. lütfen ad alanını boş bırakmayınız. hata kodu: pd-crt-02"})
        return
    }

    if product.price == 0 {
        c.json(400, gin.h{"error": "price is required", "message": "İşlem başarısız. lütfen fiş değeri alanını boş bırakmayınız. hata kodu: pd-crt-03"})
        return
    }
    if product.id != 0 {
        c.json(400, gin.h{"error": "remove id field", "message": "lütfen tekrar deneyiniz veya sistem yöneticinize başvurun. hata kodu: pd-crt-id-01"})
        return
    }

    file, err := c.formfile("image")
    if err != nil {
        c.json(400, gin.h{"error": err.error(), "message": "lütfen resim ekleyiniz. hata kodu: pd-crt-img-01"})
    }
    filename := time.now().format("20060102150405") + "-" + strings.split(file.filename, ".")[0] + "." + strings.split(file.filename, ".")[1]
    dst := fmt.sprintf("./public/images/%s", filename)
    err = c.saveuploadedfile(file, dst)
    if err != nil {
        c.json(400, gin.h{"error": err.error(), "message": "lütfen tekrar deneyiniz veya sistem yöneticinize başvurun. hata kodu: pd-crt-img-02"})
        return
    }

    product.image = &migrations.file{
        path:      filename,
        extension: strings.split(file.filename, ".")[1],
    }
    log.println(product)
    err = db.conn.create(&product).error
    if err != nil {
        c.json(400, gin.h{"error": err.error(), "message": "İşlem başarısız. lütfen tekrar deneyiniz veya sistem yöneticinize başvurun. hata kodu: pd-crt-04"})
        return
    }

    c.json(http.statuscreated, gin.h{"message": "Ürün başarıyla eklendi.", "data": product})
    return
}

my request:

mistake:

{
    "error": "strconv.parseint: parsing \"products\": invalid syntax; strconv.parseint: parsing \"products\": invalid syntax",
}

This is my structure:

type Order struct {
    ID         uint       `gorm:"primarykey" json:"id"`
    UserID     int        `gorm:"index" json:"user_id"`
    RoomNo     int        `gorm:"comment:oda_no" json:"room_no"`
    IsDone     bool       `gorm:"default:false" json:"is_done"`
    StatusCode int        `gorm:"default:0" json:"status_code"`
    CreatedAt  time.Time  `json:"created_at"`
    UpdatedAt  time.Time  `json:"updated_at"`
    DeletedAt  time.Time  `gorm:"index" json:"deleted_at"`
    Products   []*Product `gorm:"many2many:orders_products" json:"products,omitempty"`
}

type Product struct {
    ID        uint      `gorm:"primarykey" json:"id" form:"id"`
    Name      string    `gorm:"type:varchar(255)" json:"name" form:"name"`
    Price     float64   `gorm:"type:decimal(10,2)" json:"price" form:"price"`
    IsActive  bool      `gorm:"default:true" json:"is_active" form:"isActive"`
    Image     File      `gorm:"polymorphic:Module" json:"image,omitempty"`
    CreatedAt time.Time `json:"created_at" form:"createdAt"`
    UpdatedAt time.Time `json:"updated_at" form:"updatedAt"`
    DeletedAt time.Time `gorm:"index" json:"deleted_at"`
}

type OrdersProduct struct {
    OrderID   int `gorm:"index" json:"order_id"`
    ProductID int `gorm:"index" json:"product_id"`
    Count     int `gorm:"default:0" json:"count"`
}


type File struct {
    ID         uint      `gorm:"primarykey" json:"id"`
    CreatedAt  time.Time `json:"created_at"`
    UpdatedAt  time.Time `json:"updated_at"`
    DeletedAt  time.Time `gorm:"index" json:"deleted_at"`
    Path       string    `gorm:"type:varchar(255)" json:"path"`
    Extension  string    `gorm:"type:varchar(255)" json:"extension"`
    ModuleID   int       `gorm:"type:integer" json:"module_id"`
    ModuleType int       `gorm:"type:integer" json:"module_type"`
}

Solution

Check the unit type of the file structure. strconv.ParseInt() Converts a string to a value. I think ModuleID, ModuleType or both must be strings.

The above is the detailed content of Gorm creates form data file upload error. For more information, please follow other related articles on the PHP Chinese website!