我的培训项目中的一个功能:
- 通过复选框和电子邮件订阅新闻
- 每日发送时事通讯。
- 用户可以通过取消选中复选框来取消订阅个人资料中的邮件列表。
碰巧的是，我首先为那些booleanfield = true的用户设置了一个每日通讯。为此，我在管理面板中标记了复选框。它的工作原理。现在需要将复选框和邮件字段添加到新闻页面。我被最简单的卡住了。又累又困惑。请帮我在新闻页面上放置一个复选框和一个带有发送按钮的邮箱
models.py
class Profile(models.Model):
user = models.OneToOneField(settings.AUTH_USER_MODEL,
on_delete=models.CASCADE)
hr = models.BooleanField(default=False)
subscribed_for_mailings = models.BooleanField(default=False)
subscription_email = models.EmailField(default="")
def __str__(self):
return str(self.user)
Forms.py
class MailingForm(forms.ModelForm):
class Meta:
model = models.Profile
fields = ('subscription_email', 'subscribed_for_mailings', )
widgets = {
'subscription_email': forms.EmailInput(attrs={"placeholder": "Your Email..."}),
'subscribed_for_mailings': forms.CheckboxInput,
}
views.py
def all_news(request):
today = date.today()
today_news = models.TopNews.objects.filter(created__gte=today)
return render(request, "news.html",
{'today_news': today_news})
def mailing_news(request):
if request.method == 'POST':
mailing_form = forms.MailingForm(request.POST)
if mailing_form.is_valid():
mailing_form.save()
return HttpResponse('You will receive news by mail')
else:
mailing_form = forms.MailingForm()
return render(request, "news.html", {'mailing_form': mailing_form})
urls . py
...
path('news/', views.all_news, name='all_news'),
...
news.html
{% extends 'base.html' %}
{% block title %}
News
{% endblock %}
{% block body %}
<h1>Last news</h1>
{% for news in today_news%}
<h3>{{ news.title }}</h3>
<a href="{{ news.link }}">Read this news</a>
<p>
{{ news.created }}
</p>
<hr>
{% endfor %}
<h4>I want to receive news by mail</h4>
<form action="." method="post">
{{ mailing_form.as_p }}
{% csrf_token %}
<label>
<input type="submit" value="Subscribe">
</label>
</form>
{% endblock %}
页面显示了一个新闻列表，并且只有"发送"按钮。没有复选框和用于邮件的字段输入图片描述
最后我用另一种方式实现了这个功能:
forms.py
class MailingForm(forms.ModelForm):
class Meta:
model = models.Profile
fields = ('subscribed_for_mailings', 'subscription_email', )
views.py
@login_required
def mailing_news(request):
if request.method == "POST":
mailing_form = forms.MailingForm(request.POST,
instance=request.user.profile,
)
if mailing_form.is_valid():
mailing_news = mailing_form.save(commit=False)
mailing_news.subscribed_for_mailings = mailing_news.subscribed_for_mailings
mailing_news.subscription_email = mailing_news.subscription_email
mailing_news.save()
return render(request, "subscribe_complete.html",
{"mailing_news": mailing_news})
else:
mailing_form = forms.MailingForm()
return render(request, 'subscribe.html', {"mailing_form": mailing_form})
news.html
{% extends 'base.html' %}
{% block title %}
News
{% endblock %}
{% block body %}
<h1>Last news</h1> {{ news.created }}
{% for news in today_news%}
<h3>{{ news.title }}</h3>
<a href="{{ news.link }}">Read this news</a>
<hr>
{% endfor %}
<a href="{% url 'basis:subscribe' %}">I want to receive news by mail</a>
{% endblock %}
urls . py
...
path('subscribe/', views.mailing_news, name='subscribe')
...
news.html
{% extends 'base.html' %}
{% block title %}
News
{% endblock %}
{% block body %}
<h1>Last news</h1> {{ news.created }}
{% for news in today_news%}
<h3>{{ news.title }}</h3>
<a href="{{ news.link }}">Read this news</a>
<hr>
{% endfor %}
<a href="{% url 'basis:subscribe' %}">I want to receive news by mail</a>
{% endblock %}
subscribe.html
{% extends 'base.html' %}
{% block title %}
Subscribe
{% endblock %}
{% block body %}
<form action="." method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ mailing_news.as_p }}
{% if user.profile.subscribed_for_mailings is True %}
<input type="checkbox" name="subscribed_for_mailings" id="id_subscribed_for_mailings" checked="">
If you don't want to receive emails anymore, uncheck
<br>
Subscription email: <input type="email" name="subscription_email" value={{ user.profile.subscription_email }} class="vTextField" maxlength="254" id="id_subscription_email">
{% else %}
<label>
<input type="checkbox" name="subscribed_for_mailings" id="id_subscribed_for_mailings">
I want to subscribe for mailing news
</label>
<p><label>
Send news on my email:
<input type="email" name="subscription_email" class="vTextField" maxlength="254" id="id_subscription_email">
</label></p>
{% endif %}
<p><input type="submit" value="Update"></p>
</form>
{% endblock %}
subscribe_complete.html
{% extends 'base.html' %}
{% block title %}
Subscribing complete
{% endblock %}
{% block body %}
<h3>Hi {{ user.username }}</h3>
Thanks for subscribing.
You will receive daily news by email: {{ user.profile.subscription_email }}
{% endblock %}
您需要在mailing news中更改subscribed_for_mailings，如下所示
def mailing_news(request):
if request.method == 'POST':
mailing_form = forms.MailingForm(request.POST)
if mailing_form.is_valid():
profile = mailing_form.save(commit=False) ####
profile.subscribed_for_mailings = mailing_form.cleaned_data.get('subscribed_for_mailings') ####
profile.subscription_email = mailing_form.cleaned_data.get('subscription_email') ####
profile.save() #### new_line
return HttpResponse('You will receive news by mail')
else:
mailing_form = forms.MailingForm()
return render(request, "news.html", {'mailing_form': mailing_form})
你可以改变cleaned_data.get('....')