[18.0][FIX] auditlog: Ensure display_name computation works with new record.

auditlog/models/http_request.py

@@ -25,7 +25,10 @@ class AuditlogHTTPRequest(models.Model):
     @api.depends("create_date", "name")
     def _compute_display_name(self):
         for httprequest in self:
-            create_date = fields.Datetime.from_string(httprequest.create_date)
+            create_date = (
+                fields.Datetime.from_string(httprequest.create_date)
+                or fields.Datetime.now()
+            )
             tz_create_date = fields.Datetime.context_timestamp(httprequest, create_date)
             httprequest.display_name = "{} ({})".format(
                 httprequest.name or "?", fields.Datetime.to_string(tz_create_date)

auditlog/models/http_session.py

@@ -20,7 +20,10 @@ class AuditlogtHTTPSession(models.Model):
     @api.depends("create_date", "user_id")
     def _compute_display_name(self):
         for httpsession in self:
-            create_date = fields.Datetime.from_string(httpsession.create_date)
+            create_date = (
+                fields.Datetime.from_string(httpsession.create_date)
+                or fields.Datetime.now()
+            )
             tz_create_date = fields.Datetime.context_timestamp(httpsession, create_date)
             httpsession.display_name = "{} ({})".format(
                 httpsession.user_id and httpsession.user_id.name or "?",

auditlog/tests/__init__.py

@@ -2,3 +2,4 @@
 from . import common
 from . import test_auditlog
 from . import test_autovacuum
+from . import test_http

auditlog/tests/test_http.py

@@ -0,0 +1,44 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+from odoo.tests.common import HttpCase, tagged
+
+
+@tagged("post_install", "-at_install")
+class TestAuditlogHttp(HttpCase):
+    def test_compute_display_name(self):
+        self.authenticate("admin", "admin")
+        rule = self.env["auditlog.rule"].create(
+            {
+                "name": "res.partner",
+                "model_id": self.env.ref("base.model_res_partner").id,
+                "log_type": "full",
+                "state": "subscribed",
+            }
+        )
+        self.addCleanup(rule.unsubscribe)
+        partner = self.env.ref("base.partner_demo")
+        self.make_jsonrpc_request(
+            "/web/dataset/call_kw",
+            params={
+                "model": "res.partner",
+                "method": "write",
+                "args": [partner.id, {"name": "test"}],
+                "kwargs": {},
+            },
+            headers={
+                "Cookie": f"session_id={self.session.sid};",
+            },
+        )
+        logs = self.env["auditlog.log"].search(
+            [("model_id", "=", rule.model_id.id), ("res_id", "=", partner.id)]
+        )
+        self.assertEqual(len(logs), 1)
+        http_request_id = logs[0]["http_request_id"]
+        self.assertRegex(
+            http_request_id.display_name,
+            r"/web/dataset/call_kw \(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\)",
+        )
+        http_session_id = logs[0]["http_session_id"]
+        self.assertRegex(
+            http_session_id.display_name,
+            r"Mitchell Admin \(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\)",
+        )