Add missing constraint.

[wolnelektury.git] / src / catalogue / admin.py

diff --git a/src/catalogue/admin.py b/src/catalogue/admin.py
index 9008df1..420cd3f 100644 (file)
--- a/src/catalogue/admin.py
+++ b/src/catalogue/admin.py
@@ -2,9 +2,12 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from django.contrib import admin
-from django import forms
-
 from catalogue.models import Tag, Book, Fragment, BookMedia, Collection, Source
+from pz.admin import EmptyFieldListFilter
+
+
+class BlankFieldListFilter(EmptyFieldListFilter):
+    with_empty_str = True
 
 
 class TagAdmin(admin.ModelAdmin):
@@ -29,7 +32,16 @@ class MediaInline(admin.TabularInline):
 
 
 class BookAdmin(admin.ModelAdmin):
-    list_display = ('title', 'slug', 'created_at', 'has_epub_file', 'has_html_file', 'has_description',)
+    list_display = (
+        'title', 'slug', 'created_at', 'has_epub_file', 'has_html_file', 'has_description',
+    )
+    list_filter = [
+            'print_on_demand',
+            ('wiki_link', BlankFieldListFilter),
+            ('parent', EmptyFieldListFilter),
+            ('media', admin.EmptyFieldListFilter),
+            ]
+    date_hierarchy = 'created_at'
     search_fields = ('title',)
     ordering = ('title',)
 
@@ -42,6 +54,7 @@ class FragmentAdmin(admin.ModelAdmin):
 
 
 class CollectionAdmin(admin.ModelAdmin):
+    list_display = ('title', 'listed', 'role')
     prepopulated_fields = {'slug': ('title',)}