first commit

utils/jsonencoder.py

@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import unicode_literals
+
+import datetime
+import decimal
+import json
+import uuid
+
+from django.core.serializers import serialize
+from django.db import models
+from django.utils.timezone import is_aware
+
+
+class JsonEncoder(json.JSONEncoder):
+    def default(self, o):
+        # for datetime
+        if isinstance(o, datetime.datetime):
+            t = o.isoformat()
+            t = t[:23] + t[26:] if o.microsecond else t[:]
+            t = t[:-6] + 'Z' if t.endswith('+00:00') else t[:]
+            return t
+
+        # for date
+        if isinstance(o, datetime.date):
+            return o.isoformat()
+
+        # for time
+        if isinstance(o, datetime.time):
+            if is_aware(o):
+                raise ValueError("Timezone aware times can't be serialized.")
+            t = o.isoformat()
+            t = t[:12] if o.microsecond else t[:]
+            return t
+
+        # for decimal
+        if isinstance(o, decimal.Decimal):
+            return str(o)
+
+        # for uuid
+        if isinstance(o, uuid.UUID):
+            return str(o)
+
+        # for single model serialize
+        if isinstance(o, models.Model):
+            data = serialize('json', [o])
+            data = data.lstrip('[').rstrip(']')
+            return data
+
+        # for multi model serialize
+        if isinstance(o, models.QuerySet):
+            return serialize('json', o)