ERP5Type: introduces 'type_definition', a grouping type to identify portal...

ERP5Type: introduces 'type_definition', a grouping type to identify portal types defining other types

ie: Base Type and portal types of portal types

bt5/erp5_base/PortalTypeTemplateItem/portal_types/Delivery%20Type.xml

@@ -20,6 +20,14 @@
             <key> <string>description</string> </key>
             <value> <string>Delivery Type is a Base Type which allows its portal type instances to define a list of ledger to which they can belong to.</string> </value>
         </item>
+        <item>
+            <key> <string>group_list</string> </key>
+            <value>
+              <tuple>
+                <string>type_definition</string>
+              </tuple>
+            </value>
+        </item>
         <item>
             <key> <string>id</string> </key>
             <value> <string>Delivery Type</string> </value>

product/ERP5/bootstrap/erp5_core/PortalTypeTemplateItem/portal_types/Base%20Type.xml

@@ -48,7 +48,9 @@
         <item>
             <key> <string>group_list</string> </key>
             <value>
-              <tuple/>
+              <tuple>
+                <string>type_definition</string>
+              </tuple>
             </value>
         </item>
         <item>

product/ERP5Type/ERP5Type.py

@@ -261,6 +261,8 @@ class ERP5TypeInformation(XMLObject,
       # Documents need to have portal types associated to them
       # just to be able to spawn temporary objects with the same behavior
       'abstract',
+      # Definition of types
+      'type_definition',
       # Trade
       'discount', 'payment_condition', 'payment_node',
       'supply', 'supply_path', 'inventory_movement',