Visible book download buttons.

[wolnelektury.git] / src / catalogue / api / fields.py

diff --git a/src/catalogue/api/fields.py b/src/catalogue/api/fields.py
index 145780e..d95c3a8 100644 (file)
--- a/src/catalogue/api/fields.py
+++ b/src/catalogue/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 sorl.thumbnail import default
+from api.fields import AbsoluteURLField
 from catalogue.models import Book
+from club.models import Membership
 
 
 class BookLiked(serializers.ReadOnlyField):
@@ -10,21 +14,21 @@ class BookLiked(serializers.ReadOnlyField):
     def to_representation(self, value):
         request = self.context['request']
         if not hasattr(request, 'liked_books'):
-            if request.user.is_authenticated():
-                request.liked_books = set(Book.tagged.with_any(request.user.tag_set.all()).values_list('id', flat=True))
+            if request.user.is_authenticated:
+                request.liked_books = set(
+                    Book.tagged.with_any(request.user.tag_set.all()).values_list('id', flat=True)
+                )
             else:
                 request.liked_books = None
         if request.liked_books is not None:
             return value in request.liked_books
 
 
-class ThumbnailField(serializers.FileField):
-    def __init__(self, geometry, *args, **kwargs):
-        self.geometry = geometry
-        super(ThumbnailField, self).__init__(*args, **kwargs)
-        
+class EmbargoURLField(AbsoluteURLField):
     def to_representation(self, value):
-        if value:
-            return super(ThumbnailField, self).to_representation(
-                default.backend.get_thumbnail(value, self.geometry)
-            )
+        request = self.context['request']
+        # FIXME: See #3955.
+        if True or Membership.is_active_for(request.user):
+            return super().to_representation(value)
+        else:
+            return None