Flask Babel convert to original language when insert to database

I have a set of SelectField with Flask-WTF and I convert the default language with Flask-Babel.

Here is the snippet of my code:

from flask_babel import _, lazy_gettext as _l

class PaymentStatus(enum.Enum):
    PENDING = _l('PENDING')
    COMPLETED = _l('COMPLETED')
    EXPIRED = _l('EXPIRED')

    def __str__(self):
        return '{}'.format(self.value)

payment_status = [(str(_l(y)), y) for y in (PaymentStatus)]

class PaymentForm(FlaskForm):
    status_of_payment = SelectField(_l('Payment Status'), choices=payment_status)
    # ...
    # ...

And here is my model look like:

class Payment(db.Model):
    __tablename__ = 'payment'
    id = db.Column(db.Integer, primary_key=True)
    status_of_payment = db.Column(db.Enum(PaymentStatus, name='status_of_payment'))
    # ...
    # ...

And when I try to insert the value from the Flask-WTF form to my database, I got some error.

Here is the snippet how I insert it to database:

if form.validate_on_submit():
    payment = Payment(
        # payment_status=form.status_of_payment.data
        payment_status=PaymentStatus.PENDING.value
        # ...
        # ...
    )

The value of the enum PENDING also converted to the language on preferred language on my browser, so I got this error message:

sqlalchemy.exc.StatementError: (builtins.LookupError) "MENGUNGGU" is not among the defined enum values

for more information: "MENGUNGGU" = is Indonesian language for "PENDING" in English.

So the problem here is, when I insert the SelectField value, it also converts the language to my preferred browser language, and my database which is PostgreSQL block it, because I don't define the value on my enum type.

So, the point of my question is, can we excluded the i18n & l10n value from Flask-Babel when we want to insert the value to a database..?, or what should I do to face this..?

You should swap values in your choices because the first element in the tuple is the actual value that will be submitted and the second one is the presentation:

payment_status = [(y.name, _l(str(y.value))) for y in PaymentStatus]

Thanks to this you'll have translated names and proper values submitted.

Enum's name should be stored in your database instead of the value.