ReportDoc extra field is using property instead of get method.

openlobby/core/documents.py

@@ -18,13 +18,14 @@ class ReportDoc(DocType):
     our_participants = fields.TextField(analyzer=settings.ES_TEXT_ANALYZER)
     other_participants = fields.TextField(analyzer=settings.ES_TEXT_ANALYZER)
     # there is no support for JSONField now, so we serialize it to keyword
-    extra = fields.KeywordField()
+    extra_serialized = fields.KeywordField()
 
-    def prepare_extra(self, instance):
+    def prepare_extra_serialized(self, instance):
         return json.dumps(instance.extra)
 
-    def get_extra(self):
-        return json.loads(self.extra)
+    @property
+    def extra(self):
+        return json.loads(self.extra_serialized)
 
     class Meta:
         model = Report

tests/test_models.py

@@ -46,4 +46,4 @@ def test_report_is_saved_in_elasticsearch():
     assert doc.provided_benefit == 'tea'
     assert doc.our_participants == 'me'
     assert doc.other_participants == 'them'
-    assert doc.get_extra() == {'a': 3}
+    assert doc.extra == {'a': 3}