Create base tax line for manual taxes

issue10429
review340811002

CHANGELOG

@@ -1,3 +1,5 @@
+* Create base tax line for manual taxes
+
 Version 6.0.0 - 2021-05-03
 * Bug fixes (see mercurial logs for details)
 * Allow using debt accounts on supplier invoices

invoice.py

@@ -2648,10 +2648,13 @@ class InvoiceTax(sequence_ordered(), ModelSQL, ModelView):
             with Transaction().set_context(date=self.invoice.currency_date):
                 amount = Currency.compute(self.invoice.currency, self.amount,
                     self.invoice.company.currency)
+                base = Currency.compute(self.invoice.currency, self.base,
+                    self.invoice.company.currency)
             line.amount_second_currency = self.amount
             line.second_currency = self.invoice.currency
         else:
             amount = self.amount
+            base = self.base
             line.amount_second_currency = None
             line.second_currency = None
         if amount >= 0:
@@ -2673,11 +2676,19 @@ class InvoiceTax(sequence_ordered(), ModelSQL, ModelView):
             line.party = self.invoice.party
         line.origin = self
         if self.tax:
+            tax_lines = []
             tax_line = TaxLine()
             tax_line.amount = amount
             tax_line.type = 'tax'
             tax_line.tax = self.tax
-            line.tax_lines = [tax_line]
+            tax_lines.append(tax_line)
+            if self.manual:
+                tax_line = TaxLine()
+                tax_line.amount = base
+                tax_line.type = 'base'
+                tax_line.tax = self.tax
+                tax_lines.append(tax_line)
+            line.tax_lines = tax_lines
         return [line]
 
     def _credit(self):

tests/scenario_invoice_manual_tax.rst

@@ -0,0 +1,87 @@
+==================
+Invoice Manual Tax
+==================
+
+Imports::
+
+    >>> import datetime as dt
+    >>> from decimal import Decimal
+    >>> from proteus import Model
+    >>> from trytond.tests.tools import activate_modules
+    >>> from trytond.modules.company.tests.tools import (
+    ...     create_company, get_company)
+    >>> from trytond.modules.account.tests.tools import (
+    ...     create_fiscalyear, create_chart, get_accounts, create_tax,
+    ...     create_tax_code)
+    >>> from trytond.modules.account_invoice.tests.tools import (
+    ...     set_fiscalyear_invoice_sequences)
+    >>> today = dt.date.today()
+
+Activate modules::
+
+    >>> config = activate_modules('account_invoice')
+
+    >>> Invoice = Model.get('account.invoice')
+    >>> Party = Model.get('party.party')
+    >>> TaxCode = Model.get('account.tax.code')
+
+Create company::
+
+    >>> _ = create_company()
+    >>> company = get_company()
+
+Create fiscal year::
+
+    >>> fiscalyear = set_fiscalyear_invoice_sequences(
+    ...     create_fiscalyear(company))
+    >>> fiscalyear.click('create_period')
+    >>> period_ids = [p.id for p in fiscalyear.periods]
+
+Create chart of accounts::
+
+    >>> _ = create_chart(company)
+    >>> accounts = get_accounts(company)
+
+Create tax::
+
+    >>> tax = create_tax(Decimal('.10'))
+    >>> tax.save()
+    >>> invoice_base_code = create_tax_code(tax, 'base', 'invoice')
+    >>> invoice_base_code.save()
+    >>> invoice_tax_code = create_tax_code(tax, 'tax', 'invoice')
+    >>> invoice_tax_code.save()
+
+Create party::
+
+    >>> party = Party(name="Party")
+    >>> party.save()
+
+Post a supplier invoice with manual taxes::
+
+    >>> invoice = Invoice(type='in')
+    >>> invoice.party = party
+    >>> invoice.invoice_date = today
+    >>> tax_line = invoice.taxes.new()
+    >>> bool(tax_line.manual)
+    True
+    >>> tax_line.tax = tax
+    >>> tax_line.base = Decimal('100')
+    >>> tax_line.amount
+    Decimal('10.00')
+    >>> invoice.untaxed_amount, invoice.tax_amount, invoice.total_amount
+    (Decimal('0.00'), Decimal('10.00'), Decimal('10.00'))
+
+Post invoice and check tax codes::
+
+    >>> invoice.click('post')
+    >>> invoice.untaxed_amount, invoice.tax_amount, invoice.total_amount
+    (Decimal('0.00'), Decimal('10.00'), Decimal('10.00'))
+
+    >>> with config.set_context(periods=period_ids):
+    ...     invoice_base_code = TaxCode(invoice_base_code.id)
+    ...     invoice_base_code.amount
+    Decimal('100.00')
+    >>> with config.set_context(periods=period_ids):
+    ...     invoice_tax_code = TaxCode(invoice_tax_code.id)
+    ...     invoice_tax_code.amount
+    Decimal('10.00')

tests/test_account_invoice.py

@@ -315,4 +315,8 @@ def suite():
             tearDown=doctest_teardown, encoding='utf-8',
             checker=doctest_checker,
             optionflags=doctest.REPORT_ONLY_FIRST_FAILURE))
+    suite.addTests(doctest.DocFileSuite('scenario_invoice_manual_tax.rst',
+            tearDown=doctest_teardown, encoding='utf-8',
+            checker=doctest_checker,
+            optionflags=doctest.REPORT_ONLY_FIRST_FAILURE))
     return suite