Add recording count to recording tag admin

Author: naglepuff

bats_ai/core/admin/recording_tag.py

@@ -1,4 +1,5 @@
 from django.contrib import admin
+from django.db.models import Count
 
 from bats_ai.core.models import RecordingTag
 
@@ -9,5 +10,16 @@ class RecordingTagAdmin(admin.ModelAdmin):
         'id',
         'user',
         'text',
+        'recording_count',
     )
     search_fields = ('id', 'user', 'text')
+
+    def get_queryset(self, request):
+        qs = super().get_queryset(request)
+        return qs.annotate(_recording_count=Count("recording"))
+
+    def recording_count(self, obj):
+        return obj._recording_count
+
+    recording_count.short_description = "Number of recordings"
+    recording_count.admin_order_field = "_recording_count"