Here is the code:
// User Model
type User struct {
UserID int `db:"user_id"`
UserNme string `db:"user_nme"`
UserEmail string `db:"user_email"`
UserAddressID sql.NullInt64 `db:"user_address_id"`
}
func (ur *userRepository) FindAll() ([]models.User, error) {
var users []models.User
query := "select user_nme from users"
err := ur.Db.Select(&users, query)
if err != nil {
return nil, err
}
return users, nil
}
Result:
&[]models.User{models.User{UserID:0, UserNme:"Jay Durgan", UserEmail:"", UserAddressID:sql.NullInt64{Int64:0, Valid:false}}, models.User{UserID:0, UserNme:"Arne Balistreri", UserEmail:"", UserAddressID:sql.NullInt64{Int64:0, Valid:false}}, models.User{UserID:0, UserNme:"Greg Willms", UserEmail:"", UserAddressID:sql.NullInt64{Int64:0, Valid:false}}, models.User{UserID:0, UserNme:"Lady Aisha McLaughlin", UserEmail:"", UserAddressID:sql.NullInt64{Int64:0, Valid:false}}, models.User{UserID:0, UserNme:"Mrs. Phoebe Boyle", UserEmail:"", UserAddressID:sql.NullInt64{Int64:0, Valid:false}}}%
As you can see, I didn't query user_id
, user_email
and user_address_id
columns, but the result give me these fields with zero value.
So, is there a way only get the fields correspond to the queried columns?
Beside, I don't want to write it like this: &user.userNme
, &user.xxx
, &user.xxx
which means write each field and populate it. It's too verbose.
Expected result is: {UserNme: "Jay Durgan"}
...