1
年齢が1日以上のモデルから動画を削除したいと思います。シェルでdjangoでDateTimeFieldが定義されていません
models.py
from __future__ import unicode_literals
import urllib
from django.core.files import File
from django.db import models
from PIL import Image
from datetime import datetime
from django.utils import timezone
import os
class video(models.Model):
video_title = models.CharField(max_length=250)
video_link = models.CharField(max_length=250)
video_thumbnail = models.ImageField(upload_to = '',blank = True)
image_url = models.CharField(max_length=250,blank = True)
upload_date = models.DateTimeField(blank=True)
def cache(self):
if self.image_url and not self.video_thumbnail:
result = urllib.urlretrieve(self.image_url)
self.video_thumbnail.save(
os.path.basename(self.image_url),
File(open(result[0]))
)
self.save()
def __str__(self):
return self.video_title + "," + self.video_link + "," + str(self.upload_date)
、私は年齢以下のように一日以上ある動画を削除するクエリを実行します。
video.objects.filter((datetime.datetime.now() - (upload_date)).total_hours > 24)
をしかし、私は次のエラーを取得します:
In [6]: video.objects.filter((datetime.datetime.now() - (upload_date)).total_hours > 24)
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
<ipython-input-6-0c1ffc162513> in <module>()
----> 1 video.objects.filter((datetime.datetime.now() - (upload_date)).total_hours > 24)
NameError: name 'upload_date' is not defined
なぜ私はエラーを取得していますか?