icon, menü, asset-liste ergänzt

asset.py

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+# -*- coding: utf-8 -*-
+# This file is part of the investment-module from m-ds for Tryton.
+# The COPYRIGHT file at the top level of this repository contains the
+# full copyright notices and license terms.
+
+from trytond.model import ModelView, ModelSQL, fields
+from trytond.exceptions import UserError
+from trytond.i18n import gettext
+from trytond.transaction import Transaction
+from trytond.pool import Pool
+
+
+class Asset(ModelSQL, ModelView):
+    'Asset'
+    __name__ = 'investment.asset'
+
+    company = fields.Many2One(string='Company', model_name='company.company',
+        required=True, ondelete="RESTRICT")
+
+    company_currency = fields.Function(fields.Many2One(readonly=True,
+        string='Company Currency', states={'invisible': True},
+        model_name='currency.currency'),
+        'on_change_with_company_currency')
+    company_currency_digits = fields.Function(fields.Integer(
+        string='Currency Digits (Ref.)', readonly=True),
+        'on_change_with_currency_digits')
+
+    currency = fields.Many2One(string='Currency', select=True,
+        required=True, model_name='currency.currency', ondelete='RESTRICT')
+    currency_digits = fields.Integer(string='Currency Digits',
+        required=True)
+
+    @classmethod
+    def default_currency(cls):
+        """ currency of company
+        """
+        Company = Pool().get('company.company')
+
+        company = cls.default_company()
+        if company:
+            company = Company(company)
+            if company.currency:
+                return company.currency.id
+
+    @staticmethod
+    def default_company():
+        return Transaction().context.get('company') or None
+
+    @fields.depends('currency')
+    def on_change_with_currency_digits(self, name=None):
+        """ currency of cashbook
+        """
+        if self.currency:
+            return self.currency.digits
+        else:
+            return 2
+
+    @fields.depends('company', 'currency')
+    def on_change_with_company_currency(self, name=None):
+        """ get company-currency if its different from current
+            asset-currency
+        """
+        if self.company:
+            if self.currency:
+                if self.company.currency.id != self.currency.id:
+                    return self.company.currency.id
+
+# end Asset