first commit

modules/web_user/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.pool import Pool, PoolMeta
+
+
+class Replace(metaclass=PoolMeta):
+    __name__ = 'party.replace'
+
+    @classmethod
+    def fields_to_replace(cls):
+        return super().fields_to_replace() + [
+            ('web.user', 'party'),
+            ('web.user-party.party.secondary', 'party'),
+            ]
+
+
+class Erase(metaclass=PoolMeta):
+    __name__ = 'party.erase'
+
+    def to_erase(self, party_id):
+        pool = Pool()
+        User = pool.get('web.user')
+        to_erase = super().to_erase(party_id)
+        to_erase.append(
+            (User, [('party', '=', party_id)], True,
+                ['email'],
+                [None]))
+        return to_erase