Merge branch 'T11957-workarounds' into 'collabora/production'

T11957 workarounds

See merge request !9

lava_scheduler_app/api/__init__.py

@@ -310,15 +310,20 @@ class SchedulerAPI(ExposedV2API):
             health=Device.HEALTH_RETIRED
         )
 
+        devices_jobs = ((
+            dev,
+            dev.current_job() if dev.state == Device.STATE_RUNNING else None
+        ) for dev in devices_list)
+
         return [
             [
                 dev.hostname,
                 dev.device_type.name,
                 build_device_status_display(dev.state, dev.health),
-                dev.current_job().pk if dev.current_job() else None,
+                job.pk if job else None,
                 True,
             ]
-            for dev in devices_list
+            for dev, job in devices_jobs
         ]
 
     def all_device_types(self):

lava_scheduler_app/tables.py

@@ -85,6 +85,8 @@ class ExpandedStatusColumn(tables.Column):
         """
         if record.state == Device.STATE_RUNNING:
             current_job = record.current_job()
+            if not current_job:
+                return mark_safe("(no current job)")
             return mark_safe(  # nosec - internal data
                 "Running job #%s - %s submitted by %s"
                 % (pklink(current_job), current_job.description, current_job.submitter)