add splitline

splitline.py

@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+# 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.
+
+
+from trytond.pool import PoolMeta, Pool
+from trytond.model import fields
+from trytond.pyson import Eval, Or
+from .mixin import SecondUomMixin
+
+
+STATES = {
+    'readonly': Or(
+            Eval('state', '') != 'edit',
+            Eval('state_cashbook', '') != 'open',
+        ),
+    'required': Eval('feature', '') == 'asset',
+    'invisible': Eval('feature', '') != 'asset',
+    }
+DEPENDS=['state', 'state_cashbook', 'feature']
+
+
+class SplitLine(SecondUomMixin, metaclass=PoolMeta):
+    __name__ = 'cashbook.split'
+
+    quantity = fields.Numeric(string='Quantity',
+        digits=(16, Eval('quantity_digits', 4)),
+        states=STATES, depends=DEPENDS+['quantity_digits'])
+    quantity_digits = fields.Function(fields.Integer(string='Digits',
+        readonly=True, states={'invisible': True}),
+        'on_change_with_quantity_digits')
+    quantity_uom = fields.Function(fields.Many2One(string='Symbol',
+        readonly=True, model_name='product.uom'),
+        'on_change_with_quantity_uom')
+
+    @fields.depends('line', '_parent_line.cashbook')
+    def on_change_with_quantity_uom(self, name=None):
+        """ get quantity-unit of asset
+        """
+        if self.line:
+            if self.line.cashbook.quantity_uom:
+                return self.cashbook.quantity_uom.id
+
+    @fields.depends('line', '_parent_line.cashbook')
+    def on_change_with_quantity_digits(self, name=None):
+        """ get digits from cashbook
+        """
+        if self.line:
+            return self.line.cashbook.quantity_digits
+        return 4
+
+    @classmethod
+    def add_2nd_unit_values(cls, values):
+        """ extend create-values
+        """
+        Line2 = Pool().get('cashbook.line')
+
+        values = super(SplitLine, cls).add_2nd_unit_values(values)
+        line = Line2(values.get('line', None))
+
+        if line:
+            values.update(cls.add_2nd_quantity(values, line.cashbook.quantity_uom))
+        return values
+
+# end SplitLine