Item tracking and movements in started state

After that change, when there is a movement from A to B in **started** state, `Item_getCurrentSiteValue` will consider that this movement has already reached B.

Before this change, `Item_getCurrentSiteValue` was returning None, which somehow makes sense because started movement is in transit state, so the item has left A but not yet reached B, so it is in an unknown location.
Low level current tracking list API ( getCurrentTrackingList ) does not return items for started movements.
Honestly, I do not know if this is by design. (  anybody knows ? )

I will work on adding missing tests, but please tell me if I am wrong in thinking it should return None.

@gabriel @rafael @tb @tc do you remember why this change was introduced ? Maybe that behaviour of returning None should be only at the level of `Item_get*` scripts ? 

/reviewed-on nexedi/erp5!70

bt5/erp5_item/SkinTemplateItem/portal_skins/erp5_item/Item_getAffectationList.xml

@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>at_date=None, fallback_on_future=True, **kw</string> </value>
+            <value> <string>at_date=None, fallback_on_future=False, **kw</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>

product/ERP5/Document/DeliveryCell.py

@@ -160,6 +160,14 @@ class DeliveryCell(MappedValue, Movement, ImmobilisationMovement):
     def isMovement(self):
       return 1
 
+    security.declareProtected(Permissions.AccessContentsInformation,
+                             'isMovingItem')
+    def isMovingItem(self, item):
+      type_based_script = self._getTypeBasedMethod('isMovingItem')
+      if type_based_script:
+        return type_based_script(item)
+      return self.isAccountable()
+
     # Override getQuantityUnitXXX to negate same methods defined in
     # Amount class. Because cell must acquire quantity unit from line
     # not from resource.

product/ERP5/tests/testItem.py

@@ -113,6 +113,7 @@ class TestItemMixin(TestSaleInvoiceMixin):
       title = "PPL%s" % pac_list.getId(),
       start_date = self.datetime + 20,
       stop_date = self.datetime + 10,
+      specialise_value = portal.business_process_module.erp5_default_business_process,
     )
 
     if organisation is not None:
@@ -904,7 +905,6 @@ class TestItem(TestItemMixin, ERP5TypeTestCase):
     self.assertEqual(12, packing_list_line.getQuantity())
 
 
-  @newSimulationExpectedFailure
   def test_select_item_dialog_variation(self):
     organisation = self.createOrganisation(title='Organisation IV')
     resource = self.createVariatedResource()
@@ -980,6 +980,7 @@ class TestItemScripts(ERP5TypeTestCase):
   def getBusinessTemplateList(self):
     return ('erp5_base', 'erp5_pdm', 'erp5_simulation', 'erp5_trade',
             'erp5_item', 'erp5_configurator_standard_solver',
+            'erp5_configurator_standard_trade_template',
             'erp5_simulation_test')
 
   def afterSetUp(self):
@@ -1039,6 +1040,7 @@ class TestItemScripts(ERP5TypeTestCase):
                   source_section_value=self.mirror_section,
                   destination_value=self.node,
                   destination_section_value=self.section,
+                  specialise_value=self.portal.business_process_module.erp5_default_business_process,
                   start_date=DateTime() - 1,)
     line = packing_list.newContent(
                   portal_type='Sale Packing List Line',
@@ -1051,7 +1053,6 @@ class TestItemScripts(ERP5TypeTestCase):
     return line
 
   # with line
-  @newSimulationExpectedFailure
   def test_Item_getResourceValue(self):
     self.assertEqual(None, self.item.Item_getResourceValue())
     line = self._makeSalePackingListLine()
@@ -1059,7 +1060,6 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual(None, self.item.Item_getResourceValue(
                                 at_date=DateTime() - 2))
 
-  @newSimulationExpectedFailure
   def test_Item_getResourceTitle(self):
     self.assertEqual(None, self.item.Item_getResourceTitle())
     line = self._makeSalePackingListLine()
@@ -1067,7 +1067,6 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual(None, self.item.Item_getResourceTitle(
                                 at_date=DateTime() - 2))
 
-  @newSimulationExpectedFailure
   def test_Item_getCurrentOwnerValue(self):
     self.assertEqual(None, self.item.Item_getCurrentOwnerValue())
     line = self._makeSalePackingListLine()
@@ -1075,7 +1074,6 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual(None,
         self.item.Item_getCurrentOwnerValue(at_date=DateTime() - 2))
 
-  @newSimulationExpectedFailure
   def test_Item_getCurrentOwnerTitle(self):
     self.assertEqual(None, self.item.Item_getCurrentOwnerTitle())
     line = self._makeSalePackingListLine()
@@ -1083,7 +1081,6 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual(None,
         self.item.Item_getCurrentOwnerTitle(at_date=DateTime() - 2))
 
-  @newSimulationExpectedFailure
   def test_Item_getCurrentSiteValue(self):
     self.assertEqual(None, self.item.Item_getCurrentSiteValue())
     line = self._makeSalePackingListLine()
@@ -1091,7 +1088,6 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual(None, self.item.Item_getCurrentSiteValue(
                                             at_date=DateTime() - 2))
 
-  @newSimulationExpectedFailure
   def test_Item_getCurrentSiteTitle(self):
     self.assertEqual(None, self.item.Item_getCurrentSiteTitle())
     line = self._makeSalePackingListLine()
@@ -1099,6 +1095,56 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual(None,
           self.item.Item_getCurrentSiteTitle(at_date=DateTime() - 2))
 
+  def test_item_current_location_and_transit_movement(self):
+    # a started packing list is still in transit, so we do not know its
+    # current location until it is delivered.
+    # https://lab.nexedi.com/nexedi/erp5/merge_requests/70
+
+    implicit_movement = self.portal.implicit_item_movement_module.newContent(
+      portal_type='Implicit Item Movement',
+      destination_value=self.mirror_node,
+      destination_section_value=self.mirror_section,
+      stop_date=DateTime() - 2,
+      aggregate_value=self.item,
+    )
+    implicit_movement.deliver()
+
+    packing_list = self.portal.sale_packing_list_module.newContent(
+      portal_type='Sale Packing List',
+      source_value=self.mirror_node,
+      source_section_value=self.mirror_section,
+      destination_value=self.node,
+      destination_section_value=self.section,
+      specialise_value=self.portal.business_process_module.erp5_default_business_process,
+      start_date=DateTime() - 1,)
+    line = packing_list.newContent(
+      portal_type='Sale Packing List Line',
+      quantity=1,
+      resource_value=self.product,
+      aggregate_value=self.item,)
+    packing_list.confirm()
+    self.tic()
+    self.assertEqual(self.mirror_node, self.item.Item_getCurrentSiteValue())
+    self.assertEqual('Mirror Node', self.item.Item_getCurrentSiteTitle())
+    self.assertEqual(self.mirror_section, self.item.Item_getCurrentOwnerValue())
+    self.assertEqual('Mirror Section', self.item.Item_getCurrentOwnerTitle())
+
+    packing_list.start()
+    self.tic()
+    # When movement is started, the item is still moving so we do not know it's location / ownership.
+    # In this case we just return None.
+    self.assertEqual(None, self.item.Item_getCurrentSiteValue())
+    self.assertEqual(None, self.item.Item_getCurrentSiteTitle())
+    self.assertEqual(None, self.item.Item_getCurrentOwnerValue())
+    self.assertEqual(None, self.item.Item_getCurrentOwnerTitle())
+
+    packing_list.stop()
+    self.tic()
+    self.assertEqual(self.node, self.item.Item_getCurrentSiteValue())
+    self.assertEqual('Node', self.item.Item_getCurrentSiteTitle())
+    self.assertEqual(self.section, self.item.Item_getCurrentOwnerValue())
+    self.assertEqual('Section', self.item.Item_getCurrentOwnerTitle())
+
   # with cells
   @reindex
   def _makeSalePackingListCellWithVariation(self):
@@ -1108,6 +1154,7 @@ class TestItemScripts(ERP5TypeTestCase):
                   source_section_value=self.mirror_section,
                   destination_value=self.node,
                   destination_section_value=self.section,
+                  specialise_value=self.portal.business_process_module.erp5_default_business_process,
                   start_date=DateTime() - 1,)
     line = packing_list.newContent(
                   portal_type='Sale Packing List Line',
@@ -1124,7 +1171,6 @@ class TestItemScripts(ERP5TypeTestCase):
     packing_list.deliver()
     return cell
 
-  @newSimulationExpectedFailure
   def test_Item_getVariationCategoryList(self):
     self.assertEqual([], self.item.Item_getVariationCategoryList())
     self._makeSalePackingListCellWithVariation()
@@ -1132,7 +1178,6 @@ class TestItemScripts(ERP5TypeTestCase):
     self.assertEqual([],
         self.item.Item_getVariationCategoryList(at_date=DateTime() - 2))
 
-  @newSimulationExpectedFailure
   def test_Item_getVariationRangeCategoryItemList(self):
     self.assertEqual([], self.item.Item_getVariationRangeCategoryItemList())
     self._makeSalePackingListCellWithVariation()