splitline: add-2nd-unit-values extendable, new field 'feature'

splitline.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# This file is part of the cashbook-module from m-ds for Tryton.
+# This file is part of the cashbook-module from m-ds.de for Tryton.
 # The COPYRIGHT file at the top level of this repository contains the
 # full copyright notices and license terms.
 
@@ -84,6 +84,8 @@ class SplitLine(SecondCurrencyMixin, ModelSQL, ModelView):
     cashbook = fields.Function(fields.Many2One(string='Cashbook',
         readonly=True, states={'invisible': True}, model_name='cashbook.book'),
         'on_change_with_cashbook')
+    feature = fields.Function(fields.Char(string='Feature', readonly=True,
+        states={'invisible': True}), 'on_change_with_feature')
     state_cashbook = fields.Function(fields.Selection(string='State of Cashbook',
         readonly=True, states={'invisible': True}, selection=sel_state_book),
         'on_change_with_state_cashbook')
@@ -187,6 +189,13 @@ class SplitLine(SecondCurrencyMixin, ModelSQL, ModelView):
         if self.line:
             return self.line.bookingtype
 
+    @fields.depends('line', '_parent_line.cashbook')
+    def on_change_with_feature(self, name=None):
+        """ get feature-set
+        """
+        if self.line:
+            return self.line.cashbook.btype.feature
+
     @fields.depends('line', '_parent_line.cashbook')
     def on_change_with_currency(self, name=None):
         """ currency of cashbook
@@ -203,6 +212,17 @@ class SplitLine(SecondCurrencyMixin, ModelSQL, ModelView):
         else:
             return 2
 
+    @classmethod
+    def add_2nd_unit_values(cls, values):
+        """ extend create-values
+        """
+        Line2 = Pool().get('cashbook.line')
+        line = Line2(values.get('line', None))
+
+        if line:
+            values.update(cls.add_2nd_currency(values, line.cashbook.currency))
+        return values
+
     @classmethod
     def create(cls, vlist):
         """ add debit/credit
@@ -211,10 +231,7 @@ class SplitLine(SecondCurrencyMixin, ModelSQL, ModelView):
 
         vlist = [x.copy() for x in vlist]
         for values in vlist:
-            line = Line2(values.get('line', None))
-            if line:
-                values.update(cls.add_2nd_currency(values, line.cashbook.currency))
-
+            values.update(cls.add_2nd_unit_values(values))
         records = super(SplitLine, cls).create(vlist)
 
         to_update_line = []