Django @在';如果';陈述
我有一个带有属性“private”的模型“Playlist”,该属性可以是真的,也可以是假的(因此也可以是私有的或公共的)。我只想在“private=False”的情况下使用@login\u required装饰器,但我不知道如何实现这个结果。这是我的models.py文件:Django @在';如果';陈述,django,python-3.x,django-views,django-authentication,Django,Python 3.x,Django Views,Django Authentication,我有一个带有属性“private”的模型“Playlist”,该属性可以是真的,也可以是假的(因此也可以是私有的或公共的)。我只想在“private=False”的情况下使用@login\u required装饰器,但我不知道如何实现这个结果。这是我的models.py文件: class Playlist(models.Model): """Allow a user to create a customized list of songs.""" name = models.Ch
class Playlist(models.Model):
"""Allow a user to create a customized list of songs."""
name = models.CharField(max_length=100)
image = models.ImageField(upload_to='playlists/%Y/%m/%d', blank=True, null=True)
songs = models.ManyToManyField('Song')
description = models.TextField(blank=True, null=True, max_length=1000)
date_added = models.DateTimeField(auto_now_add=True)
private = models.BooleanField()
def __str__(self):
"""String for representing the model object."""
return self.name
def get_absolute_url(self):
"""Returns the url to access a detail record for this song."""
return reverse('playlist-detail', args=[str(self.id)])
def playlist(request, playlist_id):
"""Show a single playlist and associated data."""
playlist = Playlist.objects.get(id=playlist_id)
songs = playlist.songs.all()
for song in songs:
if song.url:
song.video_id = song.url.replace("https://www.youtube.com/watch?v=", "")
context = {'playlist': playlist, "playlist_songs": songs}
return render(request, 'great_songs_app/playlist.html', context)
和my views.py文件:
class Playlist(models.Model):
"""Allow a user to create a customized list of songs."""
name = models.CharField(max_length=100)
image = models.ImageField(upload_to='playlists/%Y/%m/%d', blank=True, null=True)
songs = models.ManyToManyField('Song')
description = models.TextField(blank=True, null=True, max_length=1000)
date_added = models.DateTimeField(auto_now_add=True)
private = models.BooleanField()
def __str__(self):
"""String for representing the model object."""
return self.name
def get_absolute_url(self):
"""Returns the url to access a detail record for this song."""
return reverse('playlist-detail', args=[str(self.id)])
def playlist(request, playlist_id):
"""Show a single playlist and associated data."""
playlist = Playlist.objects.get(id=playlist_id)
songs = playlist.songs.all()
for song in songs:
if song.url:
song.video_id = song.url.replace("https://www.youtube.com/watch?v=", "")
context = {'playlist': playlist, "playlist_songs": songs}
return render(request, 'great_songs_app/playlist.html', context)
我偶然发现了一条类似的线索,但问题没有答案:
我想象代码看起来与OP发布的类似,视图函数前面有:
if playlist.private == True:
@login_required
...
但很明显,这是行不通的。有什么想法吗?与尝试应用
@login\u required
不同,您可以简单地让视图取消装饰,并执行以下操作,检查用户是否经过身份验证:
from django.shortcuts import redirect
from django.conf import settings
def playlist(request, playlist_id):
"""Show a single playlist and associated data if user is authenticated."""
playlist = Playlist.objects.get(id=playlist_id)
if not playlist.private or (playlist.private and request.user.is_authenticated):
songs = playlist.songs.all()
for song in songs:
if song.url:
song.video_id = song.url.replace("https://www.youtube.com/watch?v=", "")
context = {'playlist': playlist, "playlist_songs": songs}
return render(request, 'great_songs_app/playlist.html', context)
else:
redirect(settings.LOGIN_URL)