old_contents: from django.contrib import admin
  
  from tumbledore.models import *
  
  
  class TumblelogPostInline(admin.StackedInline):
      model = TumblelogPost
      list_editable = ('is_published', 'is_sticky')
  
  
  class TumblelogWidgetPlacementInline(admin.TabularInline):
      model = TumblelogWidgetPlacement
  
  
  class TumblelogAdmin(admin.ModelAdmin):
      list_display = ('__unicode__', 'mount_on', 'theme', 'is_active', 'created_at')
      list_filter = ('theme',)
      list_editable = ('theme', 'is_active')
      date_hierarchy = 'created_at'
      inlines = (TumblelogWidgetPlacementInline, TumblelogPostInline)
      save_on_top = True
      fieldsets = (
          (None, {
              'fields': ('name', 'mount_on', 'theme', 'posts_per_page')
          }),
          ('Advanced options', {
              'classes': ('collapse',),
              'fields': ('description', 'extra_styles', 'extra_scripts')
          }),
      )
  admin.site.register(Tumblelog, TumblelogAdmin)
  
  
  class TumblelogPostAdmin(admin.ModelAdmin):
      list_display = ('title', 'author', 'tumblelog', 'is_published', 'is_sticky', 'created_at', 'published_at')
      list_filter = ('author', 'tumblelog', 'is_published', 'is_sticky')
      list_editable = ('is_published', 'is_sticky')
      date_hierarchy = 'published_at'
      prepopulated_fields = {"slug": ("title",)}
      save_on_top = True
  admin.site.register(TumblelogPost, TumblelogPostAdmin)
  
  
  class TumblelogWidgetAdmin(admin.ModelAdmin):
      list_display = ('name', 'description', 'created_at')
      date_hierarchy = 'created_at'
      prepopulated_fields = {"slug": ("name",)}
      save_on_top = True
  admin.site.register(TumblelogWidget, TumblelogWidgetAdmin)
  
  
  class TumblelogWidgetPlacementAdmin(admin.ModelAdmin):
      list_display = ('widget', 'tumblelog', 'order')
      list_editable = ('order',)
  admin.site.register(TumblelogWidgetPlacement, TumblelogWidgetPlacementAdmin)
  
new_contents: from django.contrib import admin
  
  from tumbledore.models import *
  
  
  class TumblelogPostInline(admin.StackedInline):
      model = TumblelogPost
      list_editable = ('is_published', 'is_sticky')
  
  
  class TumblelogWidgetPlacementInline(admin.TabularInline):
      model = TumblelogWidgetPlacement
  
  
  class TumblelogAdmin(admin.ModelAdmin):
      list_display = ('__unicode__', 'mount_on', 'theme', 'is_active', 'created_at')
      list_filter = ('theme', 'is_active')
      list_editable = ('theme', 'is_active')
      date_hierarchy = 'created_at'
      inlines = (TumblelogWidgetPlacementInline, TumblelogPostInline)
      save_on_top = True
      fieldsets = (
          (None, {
              'fields': ('name', 'mount_on', 'theme', 'posts_per_page')
          }),
          ('Advanced options', {
              'classes': ('collapse',),
              'fields': ('description', 'extra_styles', 'extra_scripts')
          }),
      )
  admin.site.register(Tumblelog, TumblelogAdmin)
  
  
  class TumblelogPostAdmin(admin.ModelAdmin):
      list_display = ('title', 'author', 'tumblelog', 'is_published', 'is_sticky', 'created_at', 'published_at')
      list_filter = ('author', 'tumblelog', 'is_published', 'is_sticky')
      list_editable = ('is_published', 'is_sticky')
      date_hierarchy = 'published_at'
      prepopulated_fields = {"slug": ("title",)}
      save_on_top = True
  admin.site.register(TumblelogPost, TumblelogPostAdmin)
  
  
  class TumblelogWidgetAdmin(admin.ModelAdmin):
      list_display = ('name', 'description', 'created_at')
      date_hierarchy = 'created_at'
      prepopulated_fields = {"slug": ("name",)}
      save_on_top = True
  admin.site.register(TumblelogWidget, TumblelogWidgetAdmin)
  
  
  class TumblelogWidgetPlacementAdmin(admin.ModelAdmin):
      list_display = ('widget', 'tumblelog', 'order')
      list_editable = ('order',)
  admin.site.register(TumblelogWidgetPlacement, TumblelogWidgetPlacementAdmin)
  
subject: add is_active to admin list_filter