Association doesn't replace the entities with new ones and throw an error. #5899
Description
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Description
I have two tables Item and ItemContent:
type Item struct {
gorm.Model
Logo string `json:"logo" gorm:"not null;type:varchar(50)"`
Contents []ItemContent `json:"contents" gorm:"foreignKey:ItemID"`
}
type ItemContent struct {
gorm.Model
ItemID uint `json:"item_id" gorm:"not null"`
Name string `json:"name" gorm:"not null;type:varchar(50)"`
LanguageCode string `json:"language_code" gorm:"not null;type:varchar(2)"`
}I tried to insert a new Item and ItemContent into the SQLite database:
item := model.Item{
Logo: "logo",
Contents: []model.ItemContent{
{
LanguageCode: "en",
Name: "name",
},
{
LanguageCode: "ar",
Name: "الاسم",
},
},
}
db.Create(&item)after creating a new Item I needed to replace the contents with new contents using Association in gorm, I wrote this code for replacing by calling Association.Replace method. It should remove the previous contents and set these new contents:
db.Model(&item).Association("Contents").Replace([]model.ItemContent{
{
LanguageCode: "en",
Name: "updated name",
},
{
LanguageCode : "ar",
Name: "الاسم المحدث",
},
{
LanguageCode : "fr",
Name: "le nom",
},
})but there is an error occurred when I call the Association.Replace code:
sqlite3.Error{
code: 19,
extendedCode: 1299,
systemErrno: golang.org/x/sys/windows.ERROR_SUCCESS (0),
err: NOT NULL constraint failed: vendor_contents.vendor_id
}
after that I opened the sqlite3 database and I find a new 3 rows has been added into item_contents table without removing the previous 2 rows, so there is 5 rows in the table. I expected that the Association.Replace removed the existing 2 rows and add the new 3 rows.