Python models.CreditLine类代码示例

def get_credits_available_for_product_in_account(account):
    return sum([
        credit_line.balance for credit_line in itertools.chain(
            CreditLine.get_credits_for_account(account, is_product=True),
            CreditLine.get_credits_for_account(account),
        )
    ])

 def _auto_generate_credits(self, line_item):
     CreditLine.add_credit(
         line_item.subtotal,
         subscription=self.subscription,
         product_type=self.rate.product.product_type,
         permit_inactive=True,
     )

    def test_subscription_level_sms_credits(self):
        # Add SMS usage
        arbitrary_sms_billables_for_domain(
            self.domain, self.sms_date, self.sms_rate.monthly_limit + 1
        )
        arbitrary_sms_billables_for_domain(
            self.domain2, self.sms_date, num_sms=self.advanced_rate.monthly_limit + 10
        )

        # Cover the cost of 1 SMS on the Standard subscription
        CreditLine.add_credit(
            amount=Decimal(0.7500),
            feature_type=FeatureType.SMS,
            subscription=self.subscription
        )
        # Cover the cost of 10 SMS on the Advanced subscription
        CreditLine.add_credit(
            amount=Decimal(7.5000),
            feature_type=FeatureType.SMS,
            subscription=self.sub2,
        )

        tasks.generate_invoices(self.invoice_date)
        self.assertEqual(CustomerInvoice.objects.count(), 1)
        invoice = CustomerInvoice.objects.first()
        self.assertEqual(invoice.balance, Decimal('1500.0000'))

    def test_transfer_credit_without_credit(self):
        original_credit_balance = 0
        CreditLine.add_credit(
            original_credit_balance,
            account=self.subscription.account,
            subscription=self.subscription,
        )
        original_balance = self.invoice.balance
        adjustment_amount = random.randint(1, 5)

        adjust_balance_form = AdjustBalanceForm(
            self.invoice,
            {
                'adjustment_type': 'credit',
                'custom_amount': adjustment_amount,
                'method': CreditAdjustmentReason.TRANSFER,
                'note': 'some text',
                'invoice_id': self.invoice.id,
            }
        )
        self.assertTrue(adjust_balance_form.is_valid())

        adjust_balance_form.adjust_balance()
        self.assertEqual(original_balance, self.invoice.balance)
        self.assertEqual(original_credit_balance, sum(
            credit_line.balance
            for credit_line in CreditLine.get_credits_for_invoice(self.invoice)
        ))

 def _auto_generate_credits(self, line_item):
     CreditLine.add_credit(
         line_item.subtotal,
         subscription=self.subscription,
         product_type=SoftwareProductType.ANY,
         permit_inactive=True,
     )

 def update_credits(self, payment_record):
     for feature in self.features:
         feature_amount = feature['amount']
         if feature_amount >= 0.5:
             self.credit_lines.append(CreditLine.add_credit(
                 feature_amount,
                 account=self.account,
                 subscription=self.subscription,
                 feature_type=feature['type'],
                 payment_record=payment_record,
             ))
         else:
             logger.error("[BILLING] {account} tried to make a payment for {feature} for less than $0.5."
                          "You should follow up with them.".format(account=self.account,
                                                                   feature=feature['type']))
     for product in self.products:
         plan_amount = product['amount']
         if plan_amount >= 0.5:
             self.credit_lines.append(CreditLine.add_credit(
                 plan_amount,
                 account=self.account,
                 subscription=self.subscription,
                 product_type=product['type'],
                 payment_record=payment_record,
             ))
         else:
             logger.error("[BILLING] {account} tried to make a payment for {product} for less than $0.5."
                          "You should follow up with them.".format(account=self.account,
                                                                   product=product['type']))

    def _generate_rate_credits_for_testing(self, fee, rate_kwarg, generate_invoice_credit=True):
        """
        Generates enough line item credit for two invoicing periods.
        """
        rate_credit_by_account = CreditLine.add_rate_credit(
            fee,
            self.account,
            **rate_kwarg
        )
        self.assertEqual(CreditAdjustment.objects.filter(credit_line=rate_credit_by_account).count(), 1)

        rate_credit_by_subscription = CreditLine.add_rate_credit(
            fee,
            self.account,
            subscription=self.subscription,
            **rate_kwarg
        )
        self.assertEqual(CreditAdjustment.objects.filter(credit_line=rate_credit_by_subscription).count(), 1)

        if generate_invoice_credit:
            # this credit should not count toward the line item
            subscription_credit = CreditLine.add_subscription_credit(
                fee,
                self.subscription
            )
            self.assertEqual(CreditAdjustment.objects.filter(credit_line=subscription_credit).count(), 1)

        return rate_credit_by_account, rate_credit_by_subscription

    def test_combined_credits(self):
        """
        Test that line item credits get applied first to the line items
        and invoice credits get applied to the remaining balance.
        """
        user_rate_credit_by_account = CreditLine.add_credit(
            self.monthly_user_fee, account=self.account,
            feature_type=self.user_rate.feature.feature_type,
        )
        self.assertEqual(CreditAdjustment.objects.filter(
            credit_line=user_rate_credit_by_account).count(), 1
        )

        user_rate_credit_by_subscription = CreditLine.add_credit(
            self.monthly_user_fee,
            feature_type=self.user_rate.feature.feature_type,
            subscription=self.subscription
        )
        self.assertEqual(CreditAdjustment.objects.filter(
            credit_line=user_rate_credit_by_subscription
        ).count(), 1)

        subscription_credit, account_credit = self._generate_subscription_and_account_invoice_credits(
            self.product_rate.monthly_fee, self.subscription, self.account
        )

        self._test_final_invoice_balance()

        self._test_credit_use(subscription_credit)
        self._test_credit_use(user_rate_credit_by_subscription)
        self._test_credit_use(subscription_credit)
        self._test_credit_use(account_credit)

    def test_transfers(self):
        advanced_plan = DefaultProductPlan.get_default_plan_by_domain(self.domain, edition=SoftwarePlanEdition.ADVANCED)
        standard_plan = DefaultProductPlan.get_default_plan_by_domain(self.domain, edition=SoftwarePlanEdition.STANDARD)
        first_sub = Subscription.new_domain_subscription(self.account, self.domain, advanced_plan)

        product_credit = CreditLine.add_credit(
            self.product_credit_amt, subscription=first_sub, product_type=SoftwareProductType.COMMCARE
        )
        feature_credit = CreditLine.add_credit(
            self.feature_credit_amt, subscription=first_sub, feature_type=FeatureType.USER
        )
        subscription_credit = CreditLine.add_credit(self.subscription_credit_amt, subscription=first_sub)
        original_credits = [product_credit, feature_credit, subscription_credit]

        second_sub = first_sub.change_plan(standard_plan)

        second_credits = self._ensure_transfer(original_credits)
        for credit_line in second_credits:
            self.assertEqual(credit_line.subscription.pk, second_sub.pk)

        second_sub.date_end = datetime.date.today() + datetime.timedelta(days=5)
        second_sub.save()

        third_sub = second_sub.renew_subscription()
        third_credits = self._ensure_transfer(second_credits)
        for credit_line in third_credits:
            self.assertEqual(credit_line.subscription.pk, third_sub.pk)

        third_sub.cancel_subscription()
        account_credits = self._ensure_transfer(third_credits)
        for credit_line in account_credits:
            self.assertIsNone(credit_line.subscription)
            self.assertEqual(credit_line.account.pk, self.account.pk)

    def _generate_subscription_and_account_invoice_credits(self, monthly_fee, subscription, account):
        subscription_credit = CreditLine.add_credit(monthly_fee, subscription=subscription)
        self.assertEqual(CreditAdjustment.objects.filter(credit_line=subscription_credit).count(), 1)

        account_credit = CreditLine.add_credit(monthly_fee, account=account)
        self.assertEqual(CreditAdjustment.objects.filter(credit_line=account_credit).count(), 1)
        return subscription_credit, account_credit

    def test_feature_line_item_credits(self):
        """
        Make sure that the feature line item Credit Lines are properly created and that the appropriate
        CreditAdjustments are being recorded. Also that available credit lines are being applied to the
        invoices properly.
        """
        rate_credit_by_account = CreditLine.add_credit(
            self.monthly_user_fee, account=self.account,
            feature_type=self.user_rate.feature.feature_type,
        )
        self.assertEqual(CreditAdjustment.objects.filter(
            credit_line=rate_credit_by_account).count(), 1
        )

        rate_credit_by_subscription = CreditLine.add_credit(
            self.monthly_user_fee,
            feature_type=self.user_rate.feature.feature_type,
            subscription=self.subscription
        )
        self.assertEqual(CreditAdjustment.objects.filter(
            credit_line=rate_credit_by_subscription
        ).count(), 1)

        subscription_credit = CreditLine.add_credit(
            self.monthly_user_fee, subscription=self.subscription
        )
        self.assertEqual(CreditAdjustment.objects.filter(
            credit_line=subscription_credit).count(), 1
        )

        self._test_line_item_crediting(
            lambda invoice: invoice.lineitem_set.get_feature_by_type(FeatureType.USER).get()
        )
        self._test_credit_use(rate_credit_by_account)
        self._test_credit_use(rate_credit_by_subscription)

    def test_get_credits_by_subscription_and_features_only_returns_active_credits(self):
        # Add credits to subscription
        product_credit = self.add_product_credit(100.00)
        sms_credit = self.add_sms_credit(200.00)
        user_credit = self.add_user_credit(300.00)

        # Deactivate one credit
        sms_credit.is_active = False
        sms_credit.save()

        # Check that get_credits_by_subscription_and_features only returns active credit lines
        product_credits = CreditLine.get_credits_by_subscription_and_features(
            subscription=self.subscription, is_product=True
        )
        self.assertEqual(1, product_credits.count())
        self.assertEqual(product_credit, product_credits.first())

        user_credits = CreditLine.get_credits_by_subscription_and_features(
            subscription=self.subscription, feature_type=FeatureType.USER
        )
        self.assertEqual(1, user_credits.count())
        self.assertEqual(user_credit, user_credits.first())

        sms_credits = CreditLine.get_credits_by_subscription_and_features(
            subscription=self.subscription, feature_type=FeatureType.SMS
        )
        self.assertEqual(0, sms_credits.count())

def get_credits_available_for_product_in_subscription(current_subscription):
    return sum([
        credit_line.balance for credit_line in itertools.chain(
            CreditLine.get_credits_by_subscription_and_features(current_subscription, is_product=True),
            CreditLine.get_credits_by_subscription_and_features(current_subscription),
        )
    ])

    def create_invoice_for_subscription(self, subscription):
        if subscription.is_trial:
            # Don't create invoices for trial subscriptions
            logger.info("[BILLING] Skipping invoicing for Subscription " "%s because it's a trial." % subscription.pk)
            return

        if subscription.auto_generate_credits:
            for product_rate in subscription.plan_version.product_rates.all():
                CreditLine.add_credit(
                    product_rate.monthly_fee, subscription=subscription, product_type=product_rate.product.product_type
                )

        days_until_due = DEFAULT_DAYS_UNTIL_DUE
        if subscription.date_delay_invoicing is not None:
            td = subscription.date_delay_invoicing - self.date_end
            days_until_due = max(days_until_due, td.days)
        date_due = self.date_end + datetime.timedelta(days_until_due)

        if subscription.date_start > self.date_start:
            invoice_start = subscription.date_start
        else:
            invoice_start = self.date_start

        if subscription.date_end is not None and subscription.date_end <= self.date_end:
            # Since the Subscription is actually terminated on date_end
            # have the invoice period be until the day before date_end.
            invoice_end = subscription.date_end - datetime.timedelta(days=1)
        else:
            invoice_end = self.date_end

        invoice = Invoice(
            subscription=subscription,
            date_start=invoice_start,
            date_end=invoice_end,
            date_due=date_due,
            is_hidden=subscription.do_not_invoice,
        )
        invoice.save()

        if subscription.subscriptionadjustment_set.count() == 0:
            # record that the subscription was created
            SubscriptionAdjustment.record_adjustment(
                subscription, method=SubscriptionAdjustmentMethod.TASK, invoice=invoice
            )

        self.generate_line_items(invoice, subscription)
        invoice.calculate_credit_adjustments()
        invoice.update_balance()
        invoice.save()

        record = BillingRecord.generate_record(invoice)
        try:
            record.send_email()
        except InvoiceEmailThrottledError as e:
            if not self.logged_throttle_error:
                logger.error("[BILLING] %s" % e)
                self.logged_throttle_error = True

        return invoice

 def add_feature_rate():
     CreditLine.add_rate_credit(
         amount,
         get_account_for_rate(),
         feature_rate=FeatureRate.objects.get(id=self.cleaned_data["feature_rate"]),
         subscription=subscription,
         note=note,
     )