Update on_change depends addition using field.depends decorator | #157053

__init__.py

@@ -2,6 +2,7 @@
 # copyright notices and license terms.
 from trytond.pool import Pool
 from . import sale
+from . import analytic_sale
 
 def register():
     Pool.register(
@@ -9,3 +10,7 @@ def register():
         sale.Sale,
         sale.SaleLine,
         module='sale_farm', type_='model')
+
+    Pool.register(
+        analytic_sale.SaleLine,
+        module='sale_farm', type_='model', depends=['analytic_sale'])

analytic_sale.py

@@ -0,0 +1,14 @@
+
+from trytond.model import fields
+from trytond.pool import PoolMeta
+
+class SaleLine(metaclass=PoolMeta):
+    __name__ = 'sale.line'
+
+    @fields.depends('analytic_accounts')
+    def on_change_animal(self):
+        super().on_change_animal()
+
+    @fields.depends('analytic_accounts')
+    def on_change_animal_location(self):
+        super().on_change_animal_location()

sale.py

@@ -131,13 +131,6 @@ class SaleLine(metaclass=PoolMeta):
     move_events = fields.One2Many('farm.move.event', 'origin',
         "Animal's Moves", readonly=True)
 
-    @classmethod
-    def __setup__(cls):
-        super(SaleLine, cls).__setup__()
-        if hasattr(cls, 'analytic_accounts'):
-            cls.animal.on_change.add('analytic_accounts')
-            cls.animal_location.on_change.add('analytic_accounts')
-
     @classmethod
     def get_animal_models(cls):
         IrModel = Pool().get('ir.model')

tests/test_module.py

@@ -9,6 +9,6 @@ from trytond.tests.test_tryton import ModuleTestCase
 class SaleFarmTestCase(CompanyTestMixin, ModuleTestCase):
     'Test SaleFarm module'
     module = 'sale_farm'
-
+    extras = ['analytic_sale']
 
 del ModuleTestCase