Updated ObjectField to allow for unmapped keys (#302)

* Updated ObjectField to allow for unmapped keys

* Moved is_iterable dict check

* Removed unneeded space at start of line

* Added tests for ObjectFields

* Added comments explaining ObjectField changes

Co-authored-by: Safwan Rahman <safwan.rahman15@gmail.com>

Author: oehrlein

django_elasticsearch_dsl/fields.py

@@ -116,6 +116,11 @@ def _get_inner_field_data(self, obj, field_value_to_ignore=None):
                     obj, field_value_to_ignore
                 )
 
+        # This allows for ObjectFields to be indexed from dicts with
+        # dynamic keys (i.e. keys/fields not defined in 'properties')
+        if not data and obj and isinstance(obj, dict):
+            data = obj
+
         return data
 
     def get_value_from_instance(self, instance, field_value_to_ignore=None):
@@ -130,7 +135,9 @@ def get_value_from_instance(self, instance, field_value_to_ignore=None):
         except TypeError:
             is_iterable = False
 
-        if is_iterable:
+        # While dicts are iterable, they need to be excluded here so
+        # their full data is indexed
+        if is_iterable and not isinstance(objs, dict):
             return [
                 self._get_inner_field_data(obj, field_value_to_ignore)
                 for obj in objs if obj != field_value_to_ignore

tests/test_fields.py

@@ -100,6 +100,36 @@ def test_get_value_from_instance(self):
             'last_name': "bar",
         })
 
+    def test_get_value_from_instance_with_partial_properties(self):
+        field = ObjectField(
+            attr='person',
+            properties={
+                'first_name': TextField(analyzer='foo')
+            }
+        )
+
+        instance = NonCallableMock(
+            person=NonCallableMock(first_name='foo', last_name='bar')
+        )
+
+        self.assertEqual(field.get_value_from_instance(instance), {
+            'first_name': "foo"
+        })
+
+    def test_get_value_from_instance_without_properties(self):
+        field = ObjectField(attr='person')
+
+        instance = NonCallableMock(
+            person={'first_name': 'foo', 'last_name': 'bar'}
+        )
+
+        self.assertEqual(field.get_value_from_instance(instance),
+            {
+                'first_name': "foo",
+                'last_name': "bar"
+            }
+        )
+
     def test_get_value_from_instance_with_inner_objectfield(self):
         field = ObjectField(attr='person', properties={
             'first_name': TextField(analyzer='foo'),
@@ -120,6 +150,30 @@ def test_get_value_from_instance_with_inner_objectfield(self):
             'additional': {'age': 12}
         })
 
+    def test_get_value_from_instance_with_inner_objectfield_without_properties(self):
+        field = ObjectField(
+            attr='person',
+            properties={
+                'first_name': TextField(analyzer='foo'),
+                'last_name': TextField(),
+                'additional': ObjectField()
+            }
+        )
+
+        instance = NonCallableMock(person=NonCallableMock(
+            first_name="foo",
+            last_name="bar",
+            additional={'age': 12}
+        ))
+
+        self.assertEqual(field.get_value_from_instance(instance),
+            {
+                'first_name': "foo",
+                'last_name': "bar",
+                'additional': {'age': 12}
+            }
+        )
+
     def test_get_value_from_instance_with_none_inner_objectfield(self):
         field = ObjectField(attr='person', properties={
             'first_name': TextField(analyzer='foo'),
@@ -168,6 +222,29 @@ def test_get_value_from_iterable(self):
             }
         ])
 
+    def test_get_value_from_iterable_without_properties(self):
+        field = ObjectField(attr='person')
+
+        instance = NonCallableMock(
+            person=[
+                {'first_name': "foo1", 'last_name': "bar1"},
+                {'first_name': "foo2", 'last_name': "bar2"}
+            ]
+        )
+
+        self.assertEqual(field.get_value_from_instance(instance),
+            [
+                {
+                    'first_name': "foo1",
+                    'last_name': "bar1",
+                },
+                {
+                    'first_name': "foo2",
+                    'last_name': "bar2",
+                }
+            ]
+        )
+
 
 class NestedFieldTestCase(TestCase):
     def test_get_mapping(self):