Add google authentication

authentication/google/google_auth_repository.go

@@ -0,0 +1,30 @@
+package google
+
+import (
+	"context"
+	"errors"
+	"ersteller-lib"
+	"github.com/doug-martin/goqu/v9"
+)
+
+func (r *GoogleAuthRepository) ReadByUserId(userId int) (GoogleAuth, error) {
+	ersteller_lib.Debug("Getting GoogleAuth by userId", userId)
+	sql, args, _ := r.dialect.From("googleAuth").
+		Prepared(true).
+		Select(r.getSelectColumns()...).
+		Where(goqu.Ex{
+			"user_id": userId,
+		}).
+		ToSQL()
+
+	rows, err := r.connPool.Query(context.Background(), sql, args...)
+	if err != nil {
+		ersteller_lib.Error("Failed to get GoogleAuth: ", err)
+	}
+	defer rows.Close()
+	if rows.Next() {
+		item, _, err := r.rowToItem(rows, false)
+		return item, err
+	}
+	return GoogleAuth{}, errors.New("no rows found")
+}