Sending HTML email in django_问答_开发者_运维开发者技术经验分享

In my project I've added a newsletter feed. But when trying to send emails with this function :

def send(request):
    template_html = 'static/newsletter.html'
    template_text = 'static/newsletter.txt'
    newsletters = Newsletter.objects.filter(sent=False)
    subject = _(u"Newsletter")
    adr = NewsletterEmails.objects.all()
    for a in adr:
        for n in newsletters:
            to = a.email
            from_email = settings.DEFAULT_FROM_EMAIL           
            subject = _(u"Newsletter Fandrive")
            text = get_template(template_text)
            html = get_template(template_html)
            d = { 'n': n,'email': to }
            text_content = text.render(d)
            html_content = html.render(d)

            msg = EmailMultiAlternatives(subject, text_content, from_email, [to])
            msg.attach_alternative(html_content, "text/html")
            msg.send()

using those templates :

//text

===================  Newsletter - {{ n.date }}  ============
==========================================================
                      {{ n.title }}
==========================================================          
{{ n.text }}
==========================================================

//html

<html>
    <head>
    </head>
    <body>
    <div style="">
        <div开发者_JS百科 style="">
            <h1 style="">{{ n.title }} - {{n.date}}</h1>
                <p style="">            
                    {{ n.text }}
                </p>
        </div>
    </div>
    </body>
</html>

and models :

class Newsletter(models.Model):
    title = models.CharField("title", blank=False, max_length=50)
    text = models.TextField("text", blank=False)
    sent = models.BooleanField("sent", default=False)
    data = models.DateTimeField("creation date", auto_now_add=True, blank=False)

class NewsletterEmails(models.Model):
    email = models.EmailField(_(u"e-mail address"),)

I'm getting :

TemplateSyntaxError at /utils/newsletter_send/

Caught an exception while rendering: 'dict' object has no attribute 'autoescape'

in {{ n.date }} within text_email template

Although my debug shows I'm sending proper newsletter objects to the template ,as well as debug context :

context {'email': u'admin@domain.com', 'n': <Newsletter: Newsletter object>}

Why is that happening ? From what I've found about this error it is somehow connected to sending empty dictionary to template renderer, but mine's not empty...

Just for informational purpose. I've found another way of doing this :

def send(request):
    template_html = 'static/newsletter.html'
    template_text = 'static/newsletter.txt'
    newsletters = Newsletter.objects.filter(sent=False)
    subject = _(u"Newsletter Fandrive")
    adr = NewsletterEmails.objects.all()
    for a in adr:
        for n in newsletters:
            to = a.email
            from_email = settings.DEFAULT_FROM_EMAIL           
            subject = _(u"Newsletter Fandrive")

            text_content = render_to_string(template_text, {"title": n.title,"text": n.text, 'date': n.date, 'email': to})
            html_content = render_to_string(template_html, {"title": n.title,"text": n.text, 'date': n.date, 'email': to})

            msg = EmailMultiAlternatives(subject, text_content, from_email, [to])
            msg.attach_alternative(html_content, "text/html")
            msg.send()

    return HttpResponseRedirect('/')

They've updated send_mail to allow html messages in the dev version

def send(request):
    template_html = 'static/newsletter.html'
    template_text = 'static/newsletter.txt'
    newsletters = Newsletter.objects.filter(sent=False)
    subject = _(u"Newsletter Fandrive")
    adr = NewsletterEmails.objects.all()
    for a in adr:
        for n in newsletters:
            to = a.email
            from_email = settings.DEFAULT_FROM_EMAIL           
            subject = _(u"Newsletter Fandrive")

            text_content = render_to_string(template_text, {"title": n.title,"text": n.text, 'date': n.date, 'email': to})
            html_content = render_to_string(template_html, {"title": n.title,"text": n.text, 'date': n.date, 'email': to})

            send_mail(subject, text_content, from_email,
             to, fail_silently=False, html_message=html_content)
    return HttpResponseRedirect('/')

This is a pretty simple fix, you're missing one minor thing.

You are doing this: