first commit

modules/account_invoice_line_standalone/invoice.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.pool import PoolMeta
+from trytond.transaction import Transaction
+
+
+class Invoice(metaclass=PoolMeta):
+    __name__ = 'account.invoice'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        add_remove = [
+            ('invoice', '=', None),
+        ]
+
+        if not cls.lines.add_remove:
+            cls.lines.add_remove = add_remove
+        else:
+            cls.lines.add_remove = [
+                add_remove,
+                cls.lines.add_remove,
+                ]
+
+
+class InvoiceLine(metaclass=PoolMeta):
+    __name__ = 'account.invoice.line'
+
+    @classmethod
+    def parse_view(cls, tree, type, *args, **kwargs):
+        if type == 'form' and Transaction().context.get('standalone'):
+            tree_root = tree.getroottree().getroot()
+            if tree_root.get('cursor') == 'product':
+                tree_root.set('cursor', 'party')
+        return super().parse_view(tree, type, *args, **kwargs)