我的ChapterMarks中有models.py个类，其中包含来自Production类的外键。我正在尝试使用我在ChapterMarks views.py中提交的信息，以便用户可以继续进行剧集设置。在本节中，它要求用户可以在其播客中输入每个部分的开始时间，以便客户可以单击并将其带到某些时间戳。问题是我得到以下AttributeError：
Environment:
Request Method: GET
Request URL: http://192.168.33.10:8000/fc/episodechaptermarks/
Django Version: 1.9
Python Version: 2.7.6
Installed Applications:
('producer',
'django.contrib.admin',
'django.contrib.sites',
'registration',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'storages',
'django_extensions',
'randomslugfield',
'adminsortable2',
'crispy_forms')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.security.SecurityMiddleware')
Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
149. response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
147. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in view
68. return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/mixins.py" in dispatch
56. return super(LoginRequiredMixin, self).dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py" in dispatch
88. return handler(request, *args, **kwargs)
File "/home/vagrant/fullcast_project/producer/views/views.py" in get
738. initial_values['start_time'] = chaptermark.start_time
Exception Type: AttributeError at /fc/episodechaptermarks/
Exception Value: 'int' object has no attribute 'start_time'
错误位于get的{{1}}课程中的ChapterMarks方法下： views.py
欢迎任何建议
以下是initial_values['start_time'] = chaptermark.start_time中的ChapterMarks课程：
views.pyclass EpisodeChapterMarksView(LoginRequiredMixin, View):
form_class = EpisodeChapterMarksForm
template_name = 'fc/forms_chapter_marks.html'
def get(self, request, *args, **kwargs):
initial_values = {}
user = request.user
client, podcast = get_fc_client_and_podcast_for_user(user)
if client is None or podcast is None:
raise Http404
production = Production.objects.filter(podcast=podcast).first()
if production is None:
raise Http404
initial_values['production_id'] = production.id
chaptermark_id = production.id
if chaptermark_id is not None:
chaptermark = production.id
initial_values['chaptermark_id'] = chaptermark_id
initial_values['start_time'] = chaptermark.start_time
initial_values['title'] = chaptermark.title
form = self.form_class(initial=initial_values)
return render(request, self.template_name, {'form': form})
def post(self, request, *args, **kwargs):
form = self.form_class(request.POST)
client, podcast = get_fc_client_and_podcast_for_user(request.user)
if form.is_valid():
# lets get the data
production_id = form.cleaned_data.get('production_id')
chaptermark_id = form.cleaned_data.get('chaptermark_id')
start_time = form.cleaned_data.get('start_time')
title = form.cleaned_data.get('title')
# Get production
production = get_object_or_404(Production, id=production_id)
# if a chaptermark existed, we update, if not we create
if chaptermark_id is not None:
chaptermark = ChapterMark.objects.get(id=chaptermark_id)
else:
chaptermark = ChapterMark()
chaptermark.start_time = start_time
chaptermark.title = title
chaptermark.save()
production.chapter_mark = chaptermark
production.save()
# TODO: Needs to redirect to next step
return HttpResponseRedirect(reverse('fc:episodeshowlinks'))
return render(request, self.template_name, {'form': form})
中的 Production和ChapterMark课程：
models.py-------------------------------------------- -----
class Production(TimeStampedModel):
BASE_PRODUCTION = 'B'
SECONDARY_PRODUCTION = 'S'
podcast = models.ForeignKey(Podcast, on_delete=models.SET_NULL, null=True)
ready_for_production = models.BooleanField(default=False)
episode_number = models.PositiveIntegerField(null=True)
episode_title = models.CharField(max_length=255)
episode_guest_last_name = models.CharField(max_length=128, null=True, blank=True)
episode_guest_first_name = models.CharField(max_length=128, null=True, blank=True)
episode_guest_twitter_name = models.CharField(max_length=64, null=True, blank=True)
episode_summary = models.TextField(blank=False, null=True)
base_production_uuid = models.CharField(max_length=32, null=True, blank=True)
base_production_status = models.CharField(max_length=255, blank=True)
base_production_produced = models.BooleanField(default=False)
base_production_started = models.BooleanField(default=False)
base_production_cover_image = models.CharField(max_length=255, null=True)
square_image_file = models.FileField(null=True, blank=True)
secondary_production_uuid = models.CharField(max_length=32, null=True, blank=True)
secondary_production_status = models.CharField(max_length=255, blank=True)
secondary_production_produced = models.BooleanField(default=False)
secondary_production_started = models.BooleanField(default=False)
secondary_production_cover_image = models.CharField(max_length=255, null=True)
banner_image_file = models.FileField(null=True, blank=True)
auphonic_result_url = models.URLField(null=True, blank=True)
soundcloud_result_url = models.URLField(null=True, blank=True)
youtube_result_url = models.URLField(null=True, blank=True)
libsyn_result_url = models.URLField(null=True, blank=True)
spreaker_result_id = models.PositiveIntegerField(null=True)
spreaker_result_id_request_attempted = models.BooleanField(default=False)
source_file_name = models.CharField(max_length=64, null=True)
source_file_image = models.FileField(null=True, blank=True)
output_base_name = models.CharField(max_length=64, null=True)
scheduled_date = models.DateTimeField(null=True, blank=True)
fully_produced_date = models.DateTimeField(null=True, blank=True)
auto_email_sent = models.BooleanField(default=False)
post_to_wordpress = models.BooleanField(default=True)
wordpress_post_id = models.PositiveIntegerField(null=True)
wordpress_slug = models.CharField(max_length=127, null=True, blank=True)
wordpress_url = models.URLField(null=True, blank=True)
wordpress_short_url = models.URLField(null=True, blank=True)
wordpress_featured_image = models.CharField(max_length=255, null=True, blank=True)
wordpress_featured_image_upload = models.FileField(null=True, blank=True)
wordpress_post_unique_tags = models.TextField(null=True, blank=True)
wordpress_posting_failure_notified = models.BooleanField(default=False)
transcription_url = models.URLField(null=True, blank=True)
tweets_already_scheduled = models.BooleanField(default=False)
number_of_refresh_tweets = models.PositiveIntegerField(default=0)
tweets_scheduling_failure_notified = models.BooleanField(default=False)
def __unicode__(self):
return smart_text(self.base_production_episode_title())
def fully_produced(self):
return self.base_production_produced and self.secondary_production_produced
fully_produced.short_description = 'Produced'
def status(self):
if not self.fully_produced():
return 'Pending'
if self.wordpress_url:
return 'Published'
return 'Produced'
def episode(self):
return self.episode_number
def base_production_episode_title(self):
return self._title_string_for_format(self.podcast.base_production_name_format)
def secondary_production_episode_title(self):
return self._title_string_for_format(self.podcast.secondary_production_name_format)
def _title_string_for_format(self, title_format):
from producer.helpers import replace_placeholder_in_text_format_with_parameter
guest_name = self.episode_guest()
episode_number = str(self.episode_number).zfill(3)
episode_title = self.episode_title
title = replace_placeholder_in_text_format_with_parameter(title_format, 'EPISODE_GUEST_FULL_NAME', guest_name)
title = replace_placeholder_in_text_format_with_parameter(title, 'EPISODE_NUMBER', episode_number)
title = replace_placeholder_in_text_format_with_parameter(title, 'EPISODE_TITLE', episode_title)
return title
def episode_guest(self):
if self.episode_guest_last_name and self.episode_guest_first_name:
return '%s %s' % (self.episode_guest_first_name, self.episode_guest_last_name)
if self.episode_guest_last_name:
return self.episode_guest_last_name
if self.episode_guest_first_name:
return self.episode_guest_first_name
return ''
class ChapterMark(TimeStampedModel):
production = models.ForeignKey(Production)
start_time = models.TimeField()
title = models.CharField(max_length=200)
url = models.URLField(blank=True)
image_name = models.CharField(max_length=60, blank=True)
def start_time_string(self):
return self.start_time.strftime('%H:%M:%S')
def wordpress_start_time_string(self):
string = self.chapter_timestamp()
return string if string else '-:-'
def link(self):
if self.url:
return '<a href="%s" target="_blank">%s</a>' % (self.url, self.url)
return
link.allow_tags = True
def __unicode__(self):
return u''
def chapter_timestamp(self):
if self.start_time:
if self.start_time.hour > 0:
return self.start_time.strftime('%H:%M:%S')
return self.start_time.strftime('%M:%S')
return
表格
chapter_marks.py------------- ------------- UPDATE
新错误：
from django import forms
class EpisodeChapterMarksForm(forms.Form):
production_id = forms.IntegerField(widget=forms.Field.hidden_widget, required=False)
id = forms.IntegerField(widget=forms.Field.hidden_widget)
chaptermark_id = forms.IntegerField(widget=forms.Field.hidden_widget, required=False)
start_time = forms.TimeField()
title = forms.CharField(max_length=200)
答案 0 :(得分：0)
更改
chaptermark = production.chapter_mark
到
chaptermark = production.chaptermark_set.get(id=chaptermark_id)
答案 1 :(得分：0)
在doniyor版本中你必须制作
chaptermark = production.chaptermark_set.get(id=chaptermark_id)
chaptermark.start_time
你将获得价值。 如果您想在start_time的一个步骤中获得价值，可以尝试
chaptermark = production.chaptermark_set.values('start_time')[0]['start_time']
请注意，第二个属性 - “title”
也存在同样的问题答案 2 :(得分：0)
让我们尝试理解您的代码：
def get(self, request, *args, **kwargs):
initial_values = {}
user = request.user
client, podcast = get_fc_client_and_podcast_for_user(user)
if client is None or podcast is None:
raise Http404
到目前为止一直很好......
production = Production.objects.filter(podcast=podcast).first()
这很奇怪，为什么你会为特定播客选择第一个Production ...如果你有1对1，那么如果你有1对多就使用OneToOneField - 应该是一个限制选择Production的东西，或者你应该返回一个附加到播客的所有Production的列表 - 所以这里有一些不稳定的
if production is None:
raise Http404
get_object_or_404捷径......
initial_values['production_id'] = production.id
chaptermark_id = production.id
if chaptermark_id is not None:
chaptermark = production.id
好的......您正在为int
chaptermark值
initial_values['chaptermark_id'] = chaptermark_id
initial_values['start_time'] = chaptermark.start_time
initial_values['title'] = chaptermark.title
这两行试图获取chaptermark的属性，但chaptermark不是您的模型对象，而是int - 它没有这些属性！
所以看起来您应该（稍早）将chaptermark的{{1}}分配给ChapterMark，但是...... Production可能有多个ChapterMark ...
你希望看到ChapterMark哪个？
这看起来像另一个严重的流程，因为你在这里有1对多，这可以在Form中表示，但作为依赖FormSet - 与章节列表-marks。
因此，您的方法存在根本性错误！