X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/24f677a3979ba3f1bdfe420c03ad5e3f8b0398c2..ce3795b6c4f878c496b4d46193e3379f8efb077b:/src/api/fields.py

diff --git a/src/api/fields.py b/src/api/fields.py
index 1ce83cc3e..b6269da16 100644
--- a/src/api/fields.py
+++ b/src/api/fields.py
@@ -1,6 +1,10 @@
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
 from rest_framework import serializers
-from django.core.urlresolvers import reverse
-from paypal.rest import user_is_subscribed
+from sorl.thumbnail import default
+from django.urls import reverse
+from club.models import Membership
 
 
 class AbsoluteURLField(serializers.ReadOnlyField):
@@ -40,4 +44,16 @@ class UserPremiumField(serializers.ReadOnlyField):
         super(UserPremiumField, self).__init__(*args, source='*', **kwargs)
 
     def to_representation(self, value):
-        return user_is_subscribed(value)
+        return Membership.is_active_for(value)
+
+
+class ThumbnailField(serializers.FileField):
+    def __init__(self, geometry, *args, **kwargs):
+        self.geometry = geometry
+        super(ThumbnailField, self).__init__(*args, **kwargs)
+
+    def to_representation(self, value):
+        if value:
+            return super(ThumbnailField, self).to_representation(
+                default.backend.get_thumbnail(value, self.geometry)
+            )