Don't allow editing global id content via admin site

boards/admin.py

@@ -124,4 +124,5 b' class GlobalIdAdmin(admin.ModelAdmin):'
     def is_linked(self, obj):
         return Post.objects.filter(global_id=obj).exists()
 
-    list_display = ('__str__', 'is_linked',)
  No newline at end of file
+    list_display = ('__str__', 'is_linked',)
+    readonly_fields = ('content',)
  No newline at end of file