diff --git a/trytond/osv/fields.py b/trytond/osv/fields.py
index 4f153efd0d..00f2bb4dbc 100644
--- a/trytond/osv/fields.py
+++ b/trytond/osv/fields.py
@@ -27,6 +27,7 @@ import psycopg2
 import warnings
 import __builtin__
 import sha
+import inspect
 
 def _symbol_f(symb):
     if symb is None or symb == False:
@@ -628,8 +629,23 @@ class Function(Column):
 
     def get(self, cursor, obj, ids, name, user=None, offset=0, context=None,
             values=None):
-        return getattr(obj, self._fnct)(cursor, user, ids, name, self._arg,
-                context=context)
+        if isinstance(name, list):
+            names = name
+            # Test is the function works with a list of names
+            if 'names' in inspect.getargspec(getattr(obj, self._fnct))[0]:
+                return getattr(obj, self._fnct)(cursor, user, ids, names,
+                        self._arg, context=context)
+            res = {}
+            for name in names:
+                res[name] = getattr(obj, self._fnct)(cursor, user, ids, name,
+                        self._arg, context=context)
+            return res
+        else:
+            # Test is the function works with a list of names
+            if 'names' in inspect.getargspec(getattr(obj, self._fnct))[0]:
+                name = [name]
+            return getattr(obj, self._fnct)(cursor, user, ids, name, self._arg,
+                    context=context)
 
     def set(self, cursor, obj, obj_id, name, value, user=None, context=None):
         if self._fnct_inv:
diff --git a/trytond/osv/orm.py b/trytond/osv/orm.py
index 13fb106942..1acf7b8ed4 100644
--- a/trytond/osv/orm.py
+++ b/trytond/osv/orm.py
@@ -1035,12 +1035,26 @@ class ORM(object):
         # whose name is in load is False
         fields_post = [x for x in fields_names if x in self._columns \
                 and not getattr(self._columns[x], load)]
+        func_fields = {}
         for field in fields_post:
+            if isinstance(self._columns[field], fields.Function):
+                key = (self._columns[field]._fnct, self._columns[field]._arg)
+                func_fields.setdefault(key, [])
+                func_fields[key].append(field)
+                continue
             # get the value of that field for all records/ids
             res2 = self._columns[field].get(cursor, self, ids, field, user,
                     context=context, values=res)
             for record in res:
                 record[field] = res2[record['id']]
+        for i in func_fields:
+            field_list = func_fields[i]
+            field = field_list[0]
+            res2 = self._columns[field].get(cursor, self, ids, field_list, user,
+                    context=context, values=res)
+            for field in res2:
+                for record in res:
+                    record[field] = res2[field][record['id']]
         return res
 
     def _validate(self, cursor, user, ids, context=None):