old_contents: from django.contrib import admin
  from django.contrib.contenttypes import generic
  
  
  from . import models
  
  
  class SeriesNodeInline(generic.GenericTabularInline):
      model = models.SeriesNode
  
  
  class SeriesAdmin(admin.ModelAdmin):
      model = models.Series
  
      inlines = [
          SeriesNodeInline,
      ]
      prepopulated_fields = {
          'slug': ('title', ),
      }
  
  
  admin.site.register(models.Series, SeriesAdmin)
  
new_contents: from django.contrib import admin
  
  from . import models
  
  
  class SeriesAdmin(admin.ModelAdmin):
      model = models.Series
  
      prepopulated_fields = {
          'slug': ('title', ),
      }
  
  
  admin.site.register(models.Series, SeriesAdmin)
  
subject: Remove all of the SeriesNode inline stuff (doesn't work yet)