在 django 中发送 HTML 电子邮件

发布于 2024-09-08 22:30:19 字数 2536 浏览 1 评论 0原文

在我的项目中，我添加了新闻通讯提要。但是当尝试使用此功能发送电子邮件时：

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()

使用这些模板：

//text

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

//html

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

和模型：

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"),)

我得到：

TemplateSyntaxError at /utils/newsletter_send/ 渲染时捕获异常：'dict'对象

在text_email模板中的{{ n.date }}中

没有属性'autoescape'虽然我的调试显示我正在将正确的新闻通讯对象发送到模板以及调试上下文：

context {'email': u'[ email protected]', 'n':}

为什么会发生这种情况？根据我发现的有关此错误的信息，它以某种方式与将空字典发送到模板渲染器有关，但我的字典不是空的......

原文

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 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'[email protected]', '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...

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绾颜 2024-09-15 22:30:19

仅供参考。我找到了另一种方法：

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('/')

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('/')

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楠木可依 2024-09-15 22:30:19

他们更新了 send_mail 以允许在 dev 版本中发送 html 消息

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('/')

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('/')

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