public void ChangePassword(int id, string oldPassword, string newPassword)
{
var user = _db.GetAll().SingleOrDefault(user => user.Id == id);
if (user.Password != oldPassword)
{
MessageHelpers.ErrorMessage("Please enter a correct old password.");
return;
}
if (oldPassword == newPassword)
{
MessageHelpers.ErrorMessage("New password can not be old password.");
return;
}
if (ValidationHelpers.PasswordValidation(newPassword) == null)
{
MessageHelpers.ErrorMessage("Not a valid new password.");
return;
}
user.Password = newPassword;
MessageHelpers.SuccessMessage("Password successfully changed.");
}