// createUser checks for a duplicate email before inserting the user.
// Email must already be normalized.
func (m *UserManager) createUser(user *User) error {
email := sol.Select(
Users.C("email"),
).Where(Users.C("email").Equals(user.Email)).Limit(1)
var duplicate string
m.conn.Query(email, &duplicate)
if duplicate != "" {
return fmt.Errorf(
"auth: user with email %s already exists", duplicate,
)
}
// Insert the new user
m.conn.Query(postgres.Insert(Users).Values(user).Returning(), user)
return nil
}
// Create creates a new token for the user. It will panic on error. The user
// ID must exist.
func (m *TokenManager) ForeverToken(user User) (token Token) {
token.UserID = user.ID
token.manager = m
// Generate a new token
for {
token.Key = m.keyFunc()
// No duplicates - generate a new key if this key already exists
stmt := sol.Select(
Tokens.C("key"),
).Where(Tokens.C("key").Equals(token.Key)).Limit(1)
var duplicate string
m.conn.Query(stmt, &duplicate)
if duplicate == "" {
break
}
}
// Insert the token into the database
m.conn.Query(postgres.Insert(Tokens).Values(token).Returning(), &token)
return
}