simulation: introduce Rule.getSimulationMovementSimulationState

and move the implementation of SimulationMovement.getSimulationState
here. This makes it possible for rules to generate simulation movements
that are not necessary planned.

product/ERP5/bootstrap/erp5_core/DocumentTemplateItem/portal_components/document.erp5.SimulationMovement.py

@@ -128,13 +128,8 @@ class SimulationMovement(PropertyRecordableMixin, Movement, ExplainableMixin):
   def getSimulationState(self, id_only=1):
     """Returns the current state in simulation
 
-      Inherit from delivery or parent (using a conversion table to make orders
-      planned when parent is confirmed).
+      Inherit from delivery when built, otherwise, let the rule decide.
 
-      In the case of simulation coming from an item, the simulation state is
-      delegated to the item.
-
-      XXX: movements in zero stock rule can not acquire simulation state
     """
     delivery = self.getDeliveryValue()
     if delivery is not None:
@@ -145,18 +140,8 @@ class SimulationMovement(PropertyRecordableMixin, Movement, ExplainableMixin):
       return order.getSimulationState()
 
     applied_rule = self.getParentValue()
-    parent = applied_rule.getParentValue()
-    try:
-      if isinstance(parent, SimulationMovement):
-        return parent_to_movement_simulation_state[parent.getSimulationState()]
-      getState = applied_rule.getCausalityValue() \
-        .aq_explicit.getSimulationMovementSimulationState
-    except (AttributeError, KeyError):
-      LOG('SimulationMovement.getSimulationState', WARNING,
-          'Could not acquire simulation state from %s'
-          % self.getRelativeUrl(), error=True)
-    else:
-      return getState(self)
+    rule = applied_rule.getSpecialiseValue()
+    return rule.getSimulationMovementSimulationState(self)
 
   security.declareProtected( Permissions.AccessContentsInformation,
                              'getTranslatedSimulationStateTitle')

product/ERP5/bootstrap/erp5_core/InterfaceTemplateItem/portal_components/interface.erp5.IRule.py

@@ -73,3 +73,8 @@ class IRule(IMovementCollectionUpdater):
 
     Available policies: immediate, deferred, vertical_time_bound
     """
+
+  def getSimulationMovementSimulationState(simulation_movement):
+    """
+    Compute the simulation state of this simulation movement.
+    """

product/ERP5/bootstrap/erp5_core/MixinTemplateItem/portal_components/mixin.erp5.RuleMixin.py

@@ -26,16 +26,22 @@
 #
 ##############################################################################
 
+import logging
 import zope.interface
 from AccessControl import ClassSecurityInfo
 from Products.ERP5Type.Globals import InitializeClass
 from Products.ERP5Type import Permissions
 from Products.ERP5Type.Core.Predicate import Predicate
 from erp5.component.module.ExpandPolicy import policy_dict
+from erp5.component.document.SimulationMovement import SimulationMovement, parent_to_movement_simulation_state
 from erp5.component.interface.IRule import IRule
 from erp5.component.interface.IDivergenceController import IDivergenceController
 from erp5.component.interface.IMovementCollectionUpdater import IMovementCollectionUpdater
 
+
+logger = logging.getLogger(__name__)
+
+
 def _compare(tester_list, prevision_movement, decision_movement):
   for tester in tester_list:
     if not tester.compare(prevision_movement, decision_movement):
@@ -127,6 +133,36 @@ class RuleMixin(Predicate):
     """
     return not movement.getDelivery()
 
+  security.declareProtected(Permissions.AccessContentsInformation,
+                            'getSimulationMovementSimulationState')
+  def getSimulationMovementSimulationState(self, simulation_movement):
+    """
+    Compute the simulation state of this simulation movement.
+
+    Inherit from parent movement, using a conversion table to make
+    orders planned when parent is confirmed.
+
+    In the case of simulation coming from an item, the simulation state is
+    delegated to the item.
+
+    This method can be overridden in custom rule class to generate movements
+    with a different simulation state.
+    """
+    applied_rule = simulation_movement.getParentValue()
+    parent_simulation_movement = applied_rule.getParentValue()
+    try:
+      if isinstance(parent_simulation_movement, SimulationMovement):
+        return parent_to_movement_simulation_state[parent_simulation_movement.getSimulationState()]
+      getSimulationMovementSimulationState = applied_rule.getCausalityValue() \
+        .aq_explicit.getSimulationMovementSimulationState
+    except (AttributeError, KeyError):
+      logger.warning(
+        'getSimulationState: Could not acquire simulation state from %s',
+        simulation_movement,
+        error=True)
+    else:
+      return getSimulationMovementSimulationState(simulation_movement)
+
   # Implementation of IDivergenceController # XXX-JPS move to IDivergenceController only mixin for
   security.declareProtected( Permissions.AccessContentsInformation,
                             'isDivergent')