@classmethod
    def create(cls, params):
        """
        Return whether or not the coupon was created successfully.

        :return: bool
        """
        payment_params = params

        payment_params['code'] = payment_params['code'].upper()

        if payment_params.get('amount_off'):
            payment_params['amount_off'] = \
                dollars_to_cents(payment_params['amount_off'])

        PaymentCoupon.create(**payment_params)

        if 'id' in payment_params:
            payment_params['code'] = payment_params['id']
            del payment_params['id']

        if 'redeem_by' in payment_params:
            if payment_params.get('redeem_by') is not None:
                params['redeem_by'] = payment_params.get('redeem_by').replace(
                    tzinfo=pytz.UTC)

        coupon = Coupon(**payment_params)

        db.session.add(coupon)
        db.session.commit()

        return True
dataset/ETHPy150Open nickjj/build-a-saas-app-with-flask/catwatch/blueprints/billing/models/coupon.py/Coupon.create/original