Add warehouse to invoice line

This ensures that the cost price used for COGS lines come from the right
warehouse when it is computed per warehouse.

issue10568
review362161002

__init__.py

@@ -5,6 +5,7 @@ from trytond.pool import Pool
 from . import ir
 from . import company
 from . import product
+from . import account
 from . import stock
 
 __all__ = ['register']
@@ -26,6 +27,10 @@ def register():
         stock.Move,
         stock.ShipmentInternal,
         module='product_cost_warehouse', type_='model')
+    Pool.register(
+        account.InvoiceLine,
+        module='product_cost_warehouse', type_='model',
+        depends=['account_invoice_stock'])
     Pool.register(
         product.ProductCostHistory,
         module='product_cost_warehouse', type_='model',

account.py

@@ -0,0 +1,15 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.pool import PoolMeta
+from trytond.pyson import Eval
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.product.context['warehouse'] = Eval('warehouse', -1)
+        if 'warehouse' not in cls.product.depends:
+            cls.product.depends.append('warehouse')

setup.py

@@ -68,6 +68,7 @@ requires.append(get_require_version('trytond'))
 
 tests_require = [
     get_require_version('proteus'),
+    get_require_version('trytond_account_invoice_stock'),
     get_require_version('trytond_product_cost_fifo'),
     get_require_version('trytond_product_cost_history'),
     get_require_version('trytond_account_stock_continental'),

tests/test_product_cost_warehouse.py

@@ -16,7 +16,7 @@ from trytond.modules.company.tests import CompanyTestMixin
 class ProductCostWarehouseTestCase(CompanyTestMixin, ModuleTestCase):
     'Test Product Cost Warehouse module'
     module = 'product_cost_warehouse'
-    extras = ['product_cost_history']
+    extras = ['account_invoice_stock', 'product_cost_history']
 
 
 def suite():

tryton.cfg

@@ -6,6 +6,7 @@ depends:
     product
     stock
 extras_depend:
+    account_invoice_stock
     account_stock_continental
     product_cost_fifo
     product_cost_history