Add queue manager app

apps/queue_manager/admin.py

@@ -0,0 +1,22 @@
+from django.contrib import admin
+
+from django.utils.translation import ugettext_lazy as _
+
+from queue_manager.models import Queue, QueueItem
+
+
+class QueueItemInline(admin.StackedInline):
+    model = QueueItem
+
+
+class QueueAdmin(admin.ModelAdmin):
+    model = Queue
+    list_display = ('name', 'label', 'total_items')
+    inlines = [QueueItemInline]
+
+    def total_items(self, obj):
+        return obj.items.all().count()
+    total_items.short_description = _(u'total items')
+
+
+admin.site.register(Queue, QueueAdmin)