Gorm Is there any way to set the time field to null?

Your Question

The time field cannot be set to null if it already has a value

a go struct:

type Test struct {
    gorm.Model 
    Date null.Time  // gopkg.in/guregu/null.v3 and  I  have tested sql.NullTime zero.Time null.Time  *time.Time
}

a gin route use to update Test

    r := gin.Default()
    r.GET("/update", func(c *gin.Context) {
        var body Test
        if err := c.BindJSON(&body); err != nil {
            c.String(http.StatusOK, "err")
            return
        }
        // db, _ := gorm.Open("")
        db.Model(&Test{}).Where("id = ?", body.ID).Update(body)
        c.String(http.StatusOK, "ok")
    })
    r.Run() 

post data:

{
  "id": 1,
  "Date": null // or has other method?
}

Is there any way to set the time field to null? I have some restrictions, so can't use gorm.Expr("null"), This happens in a web framework based on gorm + gin

The document you expected this should be explained

Expected answer

Comment From: a631807682

NOTE When updating with struct, GORM will only update non-zero fields. You might want to use map to update attributes or use Select to specify fields to update

https://gorm.io/docs/update.html#Update-Selected-Fields