kassenbuchtyp: Feld 'feature'

book.py

@@ -62,6 +62,8 @@ class Book(tree(separator='/'), Workflow, ModelSQL, ModelView):
                     Len(Eval('lines')) > 0,
                 ),
         }, depends=DEPENDS+['lines'])
+    feature = fields.Function(fields.Char(string='Feature', readonly=True,
+        states={'invisible': True}), 'on_change_with_feature')
     owner = fields.Many2One(string='Owner', required=True, select=True,
         model_name='res.user', ondelete='SET NULL',
         states=STATES, depends=DEPENDS)
@@ -325,6 +327,13 @@ class Book(tree(separator='/'), Workflow, ModelSQL, ModelView):
                     )
             return total
 
+    @fields.depends('btype')
+    def on_change_with_feature(self, name=None):
+        """ get feature-set
+        """
+        if self.btype:
+            return self.btype.feature
+
     @fields.depends('currency')
     def on_change_with_currency_digits(self, name=None):
         """ currency of cashbook