changed the wrong model :(

src/shop/migrations/0041_auto_20170408_1104.py

@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.5 on 2017-04-08 09:04
+from __future__ import unicode_literals
+
+import django.contrib.postgres.fields.jsonb
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('shop', '0040_auto_20170408_1055'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='coinifyapicallback',
+            name='payload',
+            field=django.contrib.postgres.fields.jsonb.JSONField(blank=True, default=''),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name='epaycallback',
+            name='payload',
+            field=django.contrib.postgres.fields.jsonb.JSONField(),
+        ),
+    ]

src/shop/models.py

@@ -309,7 +309,7 @@ class EpayCallback(CreatedUpdatedModel, UUIDModel):
         verbose_name_plural = 'Epay Callbacks'
         ordering = ['-created']
 
-    payload = JSONField(blank=True)
+    payload = JSONField()
     md5valid = models.BooleanField(default=False)
 
     def __str__(self):
@@ -410,7 +410,7 @@ class CoinifyAPIInvoice(CreatedUpdatedModel):
 
 class CoinifyAPICallback(CreatedUpdatedModel):
     headers = JSONField()
-    payload = JSONField(null=True)
+    payload = JSONField(blank=True)
     body = models.TextField(default='')
     order = models.ForeignKey('shop.Order')
     valid = models.BooleanField(default=False)

src/shop/views.py

@@ -605,7 +605,7 @@ class CoinifyCallbackView(SingleObjectMixin, View):
         try:
             parsed = json.loads(str(request.body))
         except Exception as E:
-            parsed = None
+            parsed = ''
 
         # save callback to db
         callbackobject = CoinifyAPICallback.objects.create(