如何解决此NoReverseMatch错误？
上下文
我想尽可能详细地记录这个问题，以便能够详细说明问题的根源。
我有一个名为LodgingOffer的模型，用于创建住宿优惠并详细说明其信息
class LodgingOffer(models.Model):
# Foreign Key to my User model
created_by = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
ad_title = models.CharField(null=False, blank=False,
max_length=255, verbose_name='Título de la oferta')
slug = models.SlugField(max_length=100, blank=True)
# ... Another fields ...
def __str__(self):
return "%s" % self.ad_title
def get_absolute_url(self):
return reverse('host:detail', kwargs = {'slug' : self.slug })
# I assign slug to offer based in ad_title field,checking if slug exist
def create_slug(instance, new_slug=None):
slug = slugify(instance.ad_title)
if new_slug is not None:
slug = new_slug
qs = LodgingOffer.objects.filter(slug=slug).order_by("-id")
exists = qs.exists()
if exists:
new_slug = "%s-%s" % (slug, qs.first().id)
return create_slug(instance, new_slug=new_slug)
return slug
# Brefore to save, assign slug to offer created above.
def pre_save_article_receiver(sender, instance, *args, **kwargs):
if not instance.slug:
instance.slug = create_slug(instance)
pre_save.connect(pre_save_article_receiver, sender=LodgingOffer)
对于这个模型，我有一个名为HostingOfferDetailView的DetailView。
我想要追求的一个重要目标，我问这个问题的是，在LodgingOffer对象的详细视图中，我应该能够联系该商品的所有者（对象LodgingOffer - 创建它的用户 - ）以便其他感兴趣的用户可以申请。
我希望在LodgingOffer对象的详细视图中能够联系商品所有者（对象LodgingOffer - 创建它的用户 - ）以便其他感兴趣的用户可以申请
为此目的，我有contact_owner_offer()功能，是我向此优惠的所有者发送电子邮件的地方。
我正在使用HostingOfferDetailView详情视图完成所有操作：
class HostingOfferDetailView(DetailView):
model = LodgingOffer
template_name = 'lodgingoffer_detail.html'
context_object_name = 'lodgingofferdetail'
def get_context_data(self, **kwargs):
context = super(HostingOfferDetailView, self).get_context_data(**kwargs)
user = self.request.user
# Get the related data offer
#lodging_offer_owner = self.get_object()
lodging_offer_owner_full_name = self.get_object().created_by.get_long_name()
lodging_offer_owner_email = self.get_object().created_by.email
lodging_offer_title = self.get_object().ad_title
user_interested_email = user.email
user_interested_full_name = user.get_long_name()
# Send to context email of owner offer and user interested in offer
context['user_interested_email'] = user_interested_email
context['lodging_offer_owner_email'] = lodging_offer_owner_email
# Send the data (lodging_offer_owner_email
# user_interested_email and lodging_offer_title) presented
# above to the contact_owner_offer function
contact_owner_offer(self.request, lodging_offer_owner_email, user_interested_email, lodging_offer_title)
return context
我的contact_owner_offer()功能会收到这些优惠参数，并向优惠所有者或发布商发送电子邮件，如下所示：
def contact_owner_offer(request, lodging_offer_owner_email, user_interested_email, lodging_offer_title):
user = request.user
if user.is_authenticated:
# print('Send email')
mail_subject = 'Interest in your offer'
context = {
'lodging_offer_owner_email': lodging_offer_owner_email,
# User owner offer - TO send email message
'offer': lodging_offer_title,
# offer for which a user asks
'user_interested_email': user_interested_email,
# Interested user offer
'domain': settings.SITE_URL,
'request': request
}
message = render_to_string('contact_user_own_offer.html', context)
#to_email = lodging_offer_owner.email,
send_mail(mail_subject, message, settings.DEFAULT_FROM_EMAIL,
[lodging_offer_owner_email], fail_silently=True)
我已经做了这个测试，到目前为止一切都是我想要的，结果是当我输入详细商品对象LodgingOffer的网址时，会向该商品的所有者发送一封电子邮件
我希望优惠详情模板有一个按钮，其中包含＆＃34;联系优惠所有者＆＃34; ，当任何按下它的用户向所有者发送电子邮件时提议。
为此，我为contact_owner_offer()函数定义了一个网址，并在模板中按钮的href属性上有一个链接。
网址（根据我的理解，这是我的问题存在疑问和原因）我根据contact_owner_offer()函数接收的参数数量来定义它。
这意味着我的网址必须收到：
因此，根据上述内容，我已创建此网址：
url(r'^contact-to-owner/(?P<email>[\w.@+-]+)/from/'
r'(?P<interested_email>[\w.@+-]+)/(?P<slug>[\w-]+)/$',
contact_owner_offer, name='contact_owner_offer'),
然后，在我的模板中，我生成一个html按钮，我在其中调用此URL，向他们发送各自的参数，这些参数期望：
<div class="contact">
<a class="contact-button" href="{% url 'host:contact_owner_offer' email=lodging_offer_owner_email interested_email=user_interested_email slug=lodgingofferdetail.slug %}">
<img src="{% static 'img/icons/contact.svg' %}" alt="">
<span>Contact owner offer</span>
</a>
</div>
当我输入优惠详情模板并点击上方的联系所有者优惠参考按钮时，我会收到以下错误消息：
TypeError: contact_owner_offer() got an unexpected keyword argument 'email'
[10/Oct/2017 01:04:06] "GET /host/contact-to-owner/botibagl@gmail.com/from/ces@ces.edu.co/apartacho/ HTTP/1.1" 500 77979
我的追溯就在这里
Traceback:
File "/home/bgarcial/.virtualenvs/hostayni/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
42. response = get_response(request)
File "/home/bgarcial/.virtualenvs/hostayni/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/home/bgarcial/.virtualenvs/hostayni/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
Exception Type: TypeError at /host/contact-to-owner/botibagl@gmail.com/from/botibagl@gmail.com/apartacho/
Exception Value: contact_owner_offer() got an unexpected keyword argument 'email'
我不明白，是因为它告诉我我的网址不等待名为email的参数，这是我通过按钮传递参数email=lodging_offer_owner_owner_email的地方在模板中。
我感谢任何指导 最诚挚的问候
更新
根据@RajKris和@Daniel建议，我稍微更改了我的网址正则表达式，指定了我传递的关键字参数的名称。 URL保持这种方式：
url(r'^contact-to-owner/(?P<lodging_offer_owner_email>[\w.@+-]+)/from/'
r'(?P<interested_email>[\w.@+-]+)/(?P<slug>[\w-]+)/$',
contact_owner_offer,
name='contact_owner_offer'
),
这意味着，我正在命名url参数的方式与我contact_owner_offer()接收的参数的命名方式相同。
当我输入优惠详情模板并点击联系所有者优惠参考按钮时，我收到NoReverseMatch错误
Template error:
In template /home/bgarcial/workspace/hostayni_platform/hosts/templates/lodgingoffer_detail.html, error at line 193
Reverse for 'contact_owner_offer' with arguments '()' and keyword arguments '{'email': 'botibagl@gmail.com', 'interested_email': 'botibagl@gmail.com', 'slug': 'apartacho'}' not found. 1 pattern(s) tried: ['host/contact-to-owner/(?P<lodging_offer_owner_email>[\\w.@+-]+)/from/(?P<interested_email>[\\w.@+-]+)/(?P<slug>[\\w-]+)/$'] 183 : </tr>
184 : <tr>
185 : <td>{{ lodgingofferdetail.room_value }}</td>
186 : <td>{{ lodgingofferdetail.additional_description }}</td>
187 : <td>{{ lodgingofferdetail.lodging_offer_owner_email }}</td>
188 : </tr>
189 : </tbody>
190 : </table>
191 : </div>
192 : <div class="contact">
193 : <a class="contact-button" href=" {% url 'host:contact_owner_offer' email=lodging_offer_owner_email interested_email=user_interested_email slug=lodgingofferdetail.slug %} ">
194 : <img src="{% static 'img/icons/contact.svg' %}" alt="">
195 : <span>Contactar</span>
196 : </a>
197 : </div>
一般回溯在这里：
File "/home/bgarcial/.virtualenvs/hostayni/lib/python3.6/site-packages/django/urls/resolvers.py" in _reverse_with_prefix
392. (lookup_view_s, args, kwargs, len(patterns), patterns)
Exception Type: NoReverseMatch at /host/lodging-offer/apartacho/
Exception Value: Reverse for 'contact_owner_offer' with arguments '()' and keyword arguments '{'email': 'botibagl@gmail.com', 'interested_email': 'botibagl@gmail.com', 'slug': 'apartacho'}' not found. 1 pattern(s) tried: ['host/contact-to-owner/(?P<lodging_offer_owner_email>[\\w.@+-]+)/from/(?P<interested_email>[\\w.@+-]+)/(?P<slug>[\\w-]+)/$']
如何解决此NoReverseMatch错误？
答案 0 :(得分：1)
在URL正则表达式中，您必须指定您传递的kyword arg的名称：
url(r'^contact-to-owner/(?P<email1>[\w.@+-]+)/from/' r'(?P<email1>[\w.@+-]+)/(?P<email3>[\w-]+)/$', contact_owner_offer, name='contact_owner_offer'),
这里提到：
答案 1 :(得分：1)
为什么不使用带有params的简单网址？
e.g。 ＆＃34;接触到所有者/所有者电子邮件= XXX＆安培;用户电子邮件= XXX＆安培;标题= XXX＆＃34;