remove controller_node field from jobs that don't apply

awx/api/serializers.py

@@ -1388,7 +1388,7 @@ class ProjectUpdateSerializer(UnifiedJobSerializer, ProjectOptionsSerializer):
 
     class Meta:
         model = ProjectUpdate
-        fields = ('*', 'project', 'job_type')
+        fields = ('*', 'project', 'job_type', '-controller_node')
 
     def get_related(self, obj):
         res = super(ProjectUpdateSerializer, self).get_related(obj)
@@ -2098,7 +2098,8 @@ class InventoryUpdateSerializer(UnifiedJobSerializer, InventorySourceOptionsSeri
 
     class Meta:
         model = InventoryUpdate
-        fields = ('*', 'inventory_source', 'license_error', 'source_project_update')
+        fields = ('*', 'inventory_source', 'license_error', 'source_project_update',
+                  '-controller_node',)
 
     def get_related(self, obj):
         res = super(InventoryUpdateSerializer, self).get_related(obj)
@@ -3245,7 +3246,8 @@ class AdHocCommandSerializer(UnifiedJobSerializer):
         model = AdHocCommand
         fields = ('*', 'job_type', 'inventory', 'limit', 'credential',
                   'module_name', 'module_args', 'forks', 'verbosity', 'extra_vars',
-                  'become_enabled', 'diff_mode', '-unified_job_template', '-description')
+                  'become_enabled', 'diff_mode', '-unified_job_template', '-description',
+                  '-controller_node',)
         extra_kwargs = {
             'name': {
                 'read_only': True,

awx/main/tests/functional/api/test_job.py

@@ -9,7 +9,14 @@ from rest_framework.exceptions import PermissionDenied
 from awx.api.versioning import reverse
 from awx.api.views import RelatedJobsPreventDeleteMixin, UnifiedJobDeletionMixin
 
-from awx.main.models import JobTemplate, User, Job
+from awx.main.models import (
+    JobTemplate,
+    User,
+    Job,
+    ProjectUpdate,
+    AdHocCommand,
+    InventoryUpdate,
+)
 
 from crum import impersonate
 
@@ -159,3 +166,34 @@ def test_block_related_unprocessed_events(mocker, organization, project, delete,
     with mock.patch('awx.api.views.now', lambda: time_of_request):
         with pytest.raises(PermissionDenied):
             view.perform_destroy(organization)
+
+
+class TestControllerNode():
+    @pytest.fixture
+    def project_update(self, project):
+        return ProjectUpdate.objects.create(project=project)
+
+    @pytest.fixture
+    def job(self):
+        return JobTemplate.objects.create().create_unified_job()
+
+    @pytest.fixture
+    def adhoc(self, inventory):
+        return AdHocCommand.objects.create(inventory=inventory)
+
+    @pytest.mark.django_db
+    def test_field_controller_node_exists(self, admin_user, job, project_update, inventory_update, adhoc, get):
+        r = get(reverse('api:unified_job_list') + '?id={}'.format(job.id), admin_user, expect=200)
+        assert 'controller_node' in r.data['results'][0]
+
+        r = get(job.get_absolute_url(), admin_user, expect=200)
+        assert 'controller_node' in r.data
+
+        r = get(reverse('api:project_update_detail', kwargs={'pk': project_update.pk}), admin_user, expect=200)
+        assert 'controller_node' not in r.data
+
+        r = get(reverse('api:ad_hoc_command_detail', kwargs={'pk': adhoc.pk}), admin_user, expect=200)
+        assert 'controller_node' not in r.data
+
+        r = get(reverse('api:inventory_update_detail', kwargs={'pk': inventory_update.pk}), admin_user, expect=200)
+        assert 'controller_node' not in r.data