Merge branch 'notifications_work' into devel

* notifications_work: (23 commits)
  Updates to notification unit tests after @wwitzel3's feedback
  Fix some notifications issues and write some tests
  Add notification system documentation
  Clean up flake8 related issues
  Fixing up some unicode issues
  Implement tower ui view url on models
  Sanity check and force proper types in admin check
  Proper type for in check
  Adding migration and base notification type
  Add a periodic administrative notification
  Refactor message generator
  Support notification password field encryption
  Notification configuration type checking
  Refactor NotificationTemplate to Notifier
  Implement irc notification backend
  Add webhook notification backend
  Pagerduty and Hipchat backends plus some cleanup
  Notification serializers, views, and tasks
  Implement notification serializer and validations
  Notification endpoints and url expositions
  ...

awx/api/metadata.py

@@ -13,7 +13,7 @@ from rest_framework import serializers
 from rest_framework.request import clone_request
 
 # Ansible Tower
-from awx.main.models import InventorySource
+from awx.main.models import InventorySource, Notifier
 
 
 class Metadata(metadata.SimpleMetadata):
@@ -76,6 +76,12 @@ class Metadata(metadata.SimpleMetadata):
                 get_group_by_choices = getattr(InventorySource, 'get_%s_group_by_choices' % cp)
                 field_info['%s_group_by_choices' % cp] = get_group_by_choices()
 
+        # Special handling of notification configuration where the required properties
+        # are conditional on the type selected.
+        if field.field_name == 'notification_configuration':
+            for (notification_type_name, notification_tr_name, notification_type_class) in Notifier.NOTIFICATION_TYPES:
+                field_info[notification_type_name] = notification_type_class.init_parameters
+
         # Update type of fields returned...
         if field.field_name == 'type':
             field_info['type'] = 'multiple choice'