make it possible to define a custom generator class, stored as _generator_class

attribute on the site.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15543 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -4099,6 +4099,10 @@ Business Template is a set of definitions, such as skins, portal types and categ
         self.checkDependencies()
 
       site = self.getPortalObject()
+      custom_generator_class = getattr(site, '_generator_class', None)
+      if custom_generator_class is not None:
+        gen = custom_generator_class()
+      else:
         from Products.ERP5.ERP5Site import ERP5Generator
         gen = ERP5Generator()
       # update activity tool first if necessary