old_contents: from django.contrib import admin
  
  from django_cron.models import CronJobLog
  
  
  class CronJobLogAdmin(admin.ModelAdmin):
      class Meta:
          model = CronJobLog
    
      search_fields = ('code', 'message')
      ordering = ('-start_time',)
      list_display = ('code', 'start_time', 'is_success')
  
  admin.site.register(CronJobLog, CronJobLogAdmin)
  
new_contents: from django.contrib import admin
  
  from django_cron.models import CronJobLog
  
  
  class CronJobLogAdmin(admin.ModelAdmin):
      class Meta:
          model = CronJobLog
    
      search_fields = ('code', 'message')
      ordering = ('-start_time',)
      list_display = ('code', 'start_time', 'is_success')
  
      def get_readonly_fields(self, request, obj=None):
          if not request.user.is_superuser and obj is not None:
              names = [f.name for f in CronJobLog._meta.fields if f.name != 'id']
              return self.readonly_fields + tuple(names)
          return self.readonly_fields
  
  
  admin.site.register(CronJobLog, CronJobLogAdmin)
  
subject: Make cron job logs readonly for non-superuser