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modules/sale_invoice_grouping/party.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of this
+# repository contains the full copyright notices and license terms.
+from trytond.model import ModelSQL, ValueMixin, fields
+from trytond.pool import Pool, PoolMeta
+
+
+class Party(metaclass=PoolMeta):
+    __name__ = 'party.party'
+
+    sale_invoice_grouping_method = fields.MultiValue(fields.Selection([
+                (None, 'None'),
+                ('standard', 'Standard'),
+                ],
+            'Sale Invoice Grouping Method'))
+    sale_invoice_grouping_methods = fields.One2Many(
+        'party.party.sale_invoice_grouping_method', 'party',
+        "Sale Invoice Grouping Methods")
+
+    @classmethod
+    def default_sale_invoice_grouping_method(cls, **pattern):
+        pool = Pool()
+        Configuration = pool.get('sale.configuration')
+        return Configuration(1).get_multivalue(
+            'sale_invoice_grouping_method', **pattern)
+
+
+class PartySaleInvoiceGroupingMethod(ModelSQL, ValueMixin):
+    __name__ = 'party.party.sale_invoice_grouping_method'
+    party = fields.Many2One(
+        'party.party', "Party", ondelete='CASCADE')
+    sale_invoice_grouping_method = fields.Selection(
+        'get_sale_invoice_grouping_methods', "Sale Invoice Grouping Method")
+
+    @classmethod
+    def get_sale_invoice_grouping_methods(cls):
+        pool = Pool()
+        Party = pool.get('party.party')
+        field_name = 'sale_invoice_grouping_method'
+        return Party.fields_get([field_name])[field_name]['selection']