Remove source_workflow_job and use workflow_job_id instead.

awx/api/generics.py

@@ -241,7 +241,10 @@ class ListAPIView(generics.ListAPIView, GenericAPIView):
     # Base class for a read-only list view.
 
     def get_queryset(self):
-        return self.request.user.get_queryset(self.model)
+        qs = self.request.user.get_queryset(self.model)
+        if getattr(self.model, 'spawned_by_workflow', False):
+            qs = qs.select_related('unified_job_node__workflow_job')
+        return qs
 
     def paginate_queryset(self, queryset):
         page = super(ListAPIView, self).paginate_queryset(queryset)

awx/api/serializers.py

@@ -566,7 +566,7 @@ class UnifiedJobSerializer(BaseSerializer):
         fields = ('*', 'unified_job_template', 'launch_type', 'status',
                   'failed', 'started', 'finished', 'elapsed', 'job_args',
                   'job_cwd', 'job_env', 'job_explanation', 'result_stdout',
-                  'execution_node', 'result_traceback', 'source_workflow_job')
+                  'execution_node', 'result_traceback', 'workflow_job_id')
         extra_kwargs = {
             'unified_job_template': {
                 'source': 'unified_job_template_id',
@@ -598,8 +598,8 @@ class UnifiedJobSerializer(BaseSerializer):
             res['stdout'] = reverse('api:job_stdout', args=(obj.pk,))
         elif isinstance(obj, AdHocCommand):
             res['stdout'] = reverse('api:ad_hoc_command_stdout', args=(obj.pk,))
-        if obj.source_workflow_job:
-            res['source_workflow_job'] = reverse('api:workflow_job_detail', args=(obj.source_workflow_job.pk,))
+        if obj.workflow_job_id:
+            res['source_worklflow_job'] = reverse('api:workflow_job_detail', args=(obj.workflow_job_id,))
         return res
 
     def to_representation(self, obj):

awx/main/migrations/0053_v310_linkage_back_to_workflow_job.py

@@ -1,20 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('main', '0052_v310_inventory_name_non_unique'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='unifiedjob',
-            name='source_workflow_job',
-            field=models.ForeignKey(related_name='spawned_jobs', on_delete=django.db.models.deletion.SET_NULL, default=None, editable=False, to='main.WorkflowJob', null=True),
-        ),
-    ]

awx/main/models/unified_jobs.py

@@ -528,14 +528,6 @@ class UnifiedJob(PolymorphicModel, PasswordFieldsModel, CommonModelNameNotUnique
         blank=True,
         related_name='%(class)s_labels'
     )
-    source_workflow_job = models.ForeignKey(
-        'WorkflowJob',
-        null=True,
-        default=None,
-        editable=False,
-        related_name='spawned_jobs',
-        on_delete=models.SET_NULL,
-    )
 
     def get_absolute_url(self):
         real_instance = self.get_real_instance()

awx/main/scheduler/__init__.py

@@ -116,11 +116,6 @@ class TaskManager():
             for spawn_node in spawn_nodes:
                 kv = spawn_node.get_job_kwargs()
                 job = spawn_node.unified_job_template.create_unified_job(**kv)
-                # source_workflow_job is a job-specific field rather than a field copied from job
-                # template, therefore does not fit into the copy routine and should be put outside
-                # of create_unified_job.
-                job.source_workflow_job = workflow_job
-                job.save()
                 spawn_node.job = job
                 spawn_node.save()
                 can_start = job.signal_start(**kv)
@@ -376,4 +371,3 @@ class TaskManager():
         # Operations whose queries rely on modifications made during the atomic scheduling session
         for wfj in WorkflowJob.objects.filter(id__in=finished_wfjs):
             _send_notification_templates(wfj, 'succeeded' if wfj.status == 'successful' else 'failed')
-

awx/main/tests/unit/api/serializers/test_job_serializers.py

@@ -34,8 +34,7 @@ def project_update(mocker):
 
 @pytest.fixture
 def job(mocker, job_template, project_update):
-    return mocker.MagicMock(pk=5, job_template=job_template, project_update=project_update,
-                            source_workflow_job=None)
+    return mocker.MagicMock(pk=5, job_template=job_template, project_update=project_update)
 
 
 @pytest.fixture