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modules/incoterm/account.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 fields
+from trytond.pool import Pool, PoolMeta
+
+from .common import IncotermMixin
+
+
+class Invoice(metaclass=PoolMeta):
+    __name__ = 'account.invoice'
+
+    incoterms = fields.Function(fields.Char("Incoterms"), 'get_incoterms')
+
+    def get_incoterms(self, name):
+        return '; '.join(set(filter(None,
+                    (l.incoterm_name for l in self.lines))))
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    @property
+    def incoterm_name(self):
+        pool = Pool()
+        try:
+            SaleLine = pool.get('sale.line')
+        except KeyError:
+            SaleLine = None
+        try:
+            PurchaseLine = pool.get('purchase.line')
+        except KeyError:
+            PurchaseLine = None
+        names = {
+            move.shipment.incoterm_name
+            for move in self.stock_moves
+            if (move.state != 'cancelled'
+                and isinstance(move.shipment, IncotermMixin)
+                and move.shipment.incoterm_name)}
+        if not names:
+            if (SaleLine
+                    and isinstance(self.origin, SaleLine)
+                    and isinstance(self.origin.sale, IncotermMixin)):
+                names.add(self.origin.sale.incoterm_name)
+            elif (PurchaseLine
+                    and isinstance(self.origin, PurchaseLine)
+                    and isinstance(self.origin.purchase, IncotermMixin)):
+                names.add(self.origin.purchase.incoterm_name)
+        return ', '.join(filter(None, names))