* Populate browsable API raw data form with submitted request data in response to an update.

* Remove fields from browsable API raw data that are set implicitly based on URL / parent object.
* Fix issue where a group/host could be assigned to a different inventory.
* Update validation to load values from existing instance if not present in new data; allows PATCH requests to succeed.
* Remove job_args, job_cwd, job_env, result_stdout and result_traceback fields from job listings.

awx/api/parsers.py

@@ -0,0 +1,30 @@
+# Python
+from collections import OrderedDict
+import json
+
+# Django
+from django.conf import settings
+from django.utils import six
+
+# Django REST Framework
+from rest_framework import parsers
+from rest_framework.exceptions import ParseError
+
+
+class JSONParser(parsers.JSONParser):
+    """
+    Parses JSON-serialized data, preserving order of dictionary keys.
+    """
+
+    def parse(self, stream, media_type=None, parser_context=None):
+        """
+        Parses the incoming bytestream as JSON and returns the resulting data.
+        """
+        parser_context = parser_context or {}
+        encoding = parser_context.get('encoding', settings.DEFAULT_CHARSET)
+
+        try:
+            data = stream.read().decode(encoding)
+            return json.loads(data, object_pairs_hook=OrderedDict)
+        except ValueError as exc:
+            raise ParseError('JSON parse error - %s' % six.text_type(exc))