py3: Interactor: No more im_class attribute in Python3.

This changes the API to implement similar feature in Python3, but this should
not be an issue because Interactor are only for non-ERP5 object...

product/ERP5/Interactor/PortalTypeClassInteractor.py

@@ -48,8 +48,8 @@ class PortalTypeClassInteractor(Interactor):
       self.on(Variables.setStateVar).doAfter(self.resetDynamic)
 
     from Products.Localizer.Localizer import Localizer
-    self.on(Localizer.add_language).doAfter(self.resetDynamic)
-    self.on(Localizer.del_language).doAfter(self.resetDynamic)
+    self.on(Localizer, 'add_language').doAfter(self.resetDynamic)
+    self.on(Localizer, 'del_language').doAfter(self.resetDynamic)
 
   def resetDynamic(self, method_call_object, *args, **kw):
     """

product/ERP5Form/Interactor/FieldValueCacheInteractor.py

@@ -38,14 +38,14 @@ class FieldValueCacheInteractor(Interactor):
     from Products.Formulator.Field import ZMIField
     from Products.ERP5Form.ProxyField import ProxyField
     from Products.Formulator.Form import ZMIForm
-    self.on(ZMIField.manage_edit).doAfter(self.purgeFieldValueCache)
-    self.on(ZMIField.manage_edit_xmlrpc).doAfter(self.purgeFieldValueCache)
-    self.on(ZMIField.manage_tales).doAfter(self.purgeFieldValueCache)
-    self.on(ZMIField.manage_tales_xmlrpc).doAfter(self.purgeFieldValueCache)
-    self.on(ProxyField.manage_edit).doAfter(self.purgeFieldValueCache)
-    self.on(ProxyField.manage_edit_target).doAfter(self.purgeFieldValueCache)
-    self.on(ProxyField.manage_tales).doAfter(self.purgeFieldValueCache)
-    self.on(ZMIForm.manage_renameObject).doAfter(self.purgeFieldValueCache)
+    self.on(ZMIField, 'manage_edit').doAfter(self.purgeFieldValueCache)
+    self.on(ZMIField, 'manage_edit_xmlrpc').doAfter(self.purgeFieldValueCache)
+    self.on(ZMIField, 'manage_tales').doAfter(self.purgeFieldValueCache)
+    self.on(ZMIField, 'manage_tales_xmlrpc').doAfter(self.purgeFieldValueCache)
+    self.on(ProxyField, 'manage_edit').doAfter(self.purgeFieldValueCache)
+    self.on(ProxyField, 'manage_edit_target').doAfter(self.purgeFieldValueCache)
+    self.on(ProxyField, 'manage_tales').doAfter(self.purgeFieldValueCache)
+    self.on(ZMIForm, 'manage_renameObject').doAfter(self.purgeFieldValueCache)
 
   def purgeFieldValueCache(self, method_call_object):
     """

product/ERP5Type/Interactor/Interactor.py

@@ -94,17 +94,25 @@ class InteractorSource:
   """
   """
 
-  def __init__(self, method):
+  def __init__(self, *args):
     """
       Register method
     """
+    if len(args) == 1:
+      self.klass = method.im_class
       self.method = method
+    else:
+      # No im_class on Python3 and Interactors only makes sense with non-ERP5
+      # objects anyway, so add a class argument to InteractorSource to make it
+      # simple
+      self.klass = args[0]
+      self.method = getattr(self.klass, args[1])
 
   def doBefore(self, action, *args, **kw):
     """
     """
     if not isinstance(self.method, InteractorMethod):
-      im_class = self.method.im_class
+      im_class = self.klass
       # Turn this into an InteractorMethod
       interactor_method = InteractorMethod(self.method)
       setattr(im_class, self.method.__name__, interactor_method)
@@ -116,7 +124,7 @@ class InteractorSource:
     """
     """
     if not isinstance(self.method, InteractorMethod):
-      im_class = self.method.im_class
+      im_class = self.klass
       # Turn this into an InteractorMethod
       interactor_method = InteractorMethod(self.method)
       setattr(im_class, self.method.__name__, interactor_method)
@@ -147,9 +155,9 @@ class Interactor:
     raise NotImplementedError
 
   # Interaction implementation
-  def on(self, method):
+  def on(self, *args):
     """
       Parameters may hold predicates ?
       no need - use InteractorMethodCall and decide on action
     """
-    return InteractorSource(method)
+    return InteractorSource(*args)