Update AdminThumbnail

gallery/admin.py

@@ -1,9 +1,24 @@
 from django.contrib import admin
+from imagekit import ImageSpec
 from imagekit.admin import AdminThumbnail
+from imagekit.cachefiles import ImageCacheFile
+from imagekit.processors import ResizeToFill
 
 from gallery.models import Album, City, Location, Photo
 
 
+class AdminThumbnailSpec(ImageSpec):
+    processors = [ResizeToFill(50, 50)]
+    format = 'JPEG'
+    options = {'quality': 60}
+
+
+def cached_admin_thumb(instance):
+    cached = ImageCacheFile(AdminThumbnailSpec(instance.photo))
+    cached.generate()
+    return cached
+
+
 class CityAdmin(admin.ModelAdmin):
     list_display = ('name',)
     search_fields = ('name',)
@@ -21,18 +36,18 @@ class LocationAdmin(admin.ModelAdmin):
 
 class AlbumAdmin(admin.ModelAdmin):
     prepopulated_fields = {'slug': ('name',)}
-    list_display = ('__str__',)
+    list_display = ('__str__', 'location',  'album_date', 'is_public', )
     search_fields = ('name',)
     ordering = ('name',)
     list_per_page = 30
+    list_editable = ('is_public', 'location')
 
 
 class PhotoAdmin(admin.ModelAdmin):
-    list_display = ('__str__', 'album', 'admin_thumbnail',)
-    list_display_links = ('__str__',)
-    list_editable = ('album',)
+    list_display = ('slug', 'album', 'admin_thumbnail',)
+    list_display_links = ('slug',)
     readonly_fields = ['slug', 'taken_at', 'height', 'width', 'exif', ]
-    admin_thumbnail = AdminThumbnail(image_field='photo_thumbnail',)
+    admin_thumbnail = AdminThumbnail(image_field=cached_admin_thumb)
 
 
 admin.site.register(City, CityAdmin)