Gorm only updates a field
background
During development, you may encounter that you need to update a field of this piece of data, but you do not want to modify its
UpdatedAtfield.
Such as: data views.
Normal update
...
err = d.db.Model(&repository.UserInfo{
}).Where("id = ?", id).Update(repository.UserInfo{
ViewsCount: viewsCount+1,
}).Error
...
Only update a field ( UpdatedAt字段not update)
...
err = d.db.Model(&repository.UserInfo{
}).Where("id = ?", id).UpdateColumn(map[string]interface{
}{
"views_count": viewsCount++,
}).Error
...
Update a field to the default value (same as above)
Such as: the database is set to int type, when updating, set 1 to 0. At this time, in Gorm, this field is not updated, it thinks it is 结构体初始化时的默认值.
If you need to update a field to the default value, you can use the operation under the tree.
...
err = d.db.Model(&repository.UserInfo{
}).Where("id = ?", id).UpdateColumn(map[string]interface{
}{
"is_hidden": false,
}).Error
...