added a interface and adding to CRUD

api/repositories/users.go

@@ -2,6 +2,7 @@ package repositories
 
 import (
 	"database/sql"
+	"errors"
 	"fmt"
 	"go-cook/api/models"
 	"time"
@@ -12,8 +13,17 @@ import (
 
 const (
 	TableName string = "users"
+	ErrUserNotFound string = "requested user was not found"
 )
 
+type IUserTable interface {
+	GetByName(name string) (models.UserModel, error)
+	Create(name, password string) (int64, error)
+	Update(id int, entity models.UserModel) error
+	UpdatePassword(name, password string) error
+	CheckUserHash(name, password string) error
+}
+
 // Creates a new instance of UserRepository with the bound sql
 func NewUserRepository(conn *sql.DB) UserRepository {
 	return UserRepository{
@@ -37,10 +47,15 @@ func (ur UserRepository) GetByName(name string) (models.UserModel, error) {
 		return models.UserModel{}, err
 	}
 
-	return ur.processRows(rows)[0], nil
+	data := ur.processRows(rows)
+	if (len(data) == 0) {
+		return models.UserModel{}, errors.New(ErrUserNotFound)
 	}
 
-func (ur UserRepository) NewUser(name, password string) (int64, error) {
+	return data[0], nil
+}
+
+func (ur UserRepository) Create(name, password string) (int64, error) {
 	passwordBytes := []byte(password)
 	hash, err := bcrypt.GenerateFromPassword(passwordBytes, bcrypt.DefaultCost)
 	if err != nil {
@@ -62,6 +77,10 @@ func (ur UserRepository) NewUser(name, password string) (int64, error) {
 	return 1, nil
 }
 
+func (ur UserRepository) Update(id int, entity models.UserModel) error {
+	return errors.New("not implemented")
+}
+
 func (ur UserRepository) UpdatePassword(name, password string) error {
 	_, err := ur.GetByName(name)
 	if err != nil {

api/repositories/users_test.go

@@ -20,7 +20,7 @@ func TestCanCreateNewUser(t *testing.T) {
 	defer db.Close()
 
 	repo := repositories.NewUserRepository(db)
-	updated, err := repo.NewUser("testing", "NotSecure")
+	updated, err := repo.Create("testing", "NotSecure")
 	if err != nil {
 		log.Println(err)
 		t.FailNow()