add facts recent endpoints

* Hang most recent listing of facts per-host off of /hosts/n/

awx/main/access.py

@@ -2264,7 +2264,12 @@ class RoleAccess(BaseAccess):
         return False
 
 
+class FactRecentAccess(BaseAccess):
 
+    model = FactRecent
+
+    def get_queryset(self):
+        return FactRecent.objects.distinct()
 
 
 register_access(User, UserAccess)
@@ -2299,3 +2304,4 @@ register_access(WorkflowJobTemplateNode, WorkflowJobTemplateNodeAccess)
 register_access(WorkflowJobNode, WorkflowJobNodeAccess)
 register_access(WorkflowJobTemplate, WorkflowJobTemplateAccess)
 register_access(WorkflowJob, WorkflowJobAccess)
+register_access(FactRecent, FactRecentAccess)

awx/main/fields.py

@@ -46,6 +46,7 @@ class JSONField(upstream_JSONField):
             return {}
         return super(JSONField, self).from_db_value(value, expression, connection, context)
 
+
 class JSONBField(upstream_JSONField):
     def get_db_prep_value(self, value, connection, prepared=False):
         if connection.vendor == 'sqlite':

awx/main/models/fact.py

@@ -4,12 +4,11 @@
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
-from jsonbfield.fields import JSONField
-
 from awx.main.fields import JSONBField
 
 __all__ = ('Fact', 'FactRecent')
 
+
 class FactRecent(models.Model):
     host = models.ForeignKey(
         'Host',
@@ -97,3 +96,4 @@ class Fact(models.Model):
         fact_obj = Fact.objects.create(host_id=host_id, module=module, timestamp=timestamp, facts=facts)
         fact_obj.save()
         return fact_obj
+