django - 为什么 Django 发送了错误的电子邮件模板？

Question

我在这段代码中找不到错误。我尝试过隔离问题，但是当我将相关代码复制到单独的文件中时，它可以工作。问题肯定出在周围的代码上，但我不明白它有什么关系。这是一切:

问题出在“激活您的项目帐户”电子邮件上。它向我发送了一封电子邮件，其中包含以下内容:

--===============1413769924==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable

text here

--===============1413769924==
Content-Type: text/html; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable

text here

对于两个版本的电子邮件，“此处的文本”是相同的，但在实际文件中不是，并且当我尝试发送时不是来自不同脚本的电子邮件。代码如下:

def join_transporter(request):
    form = TransporterJoinForm(request.POST)

    if request.POST and form.is_valid():
        user = User(
            username = form.username.val,
            first_name = form.first_name.val,
            last_name = form.last_name.val,
            email = form.email.val,
            is_active = False,
        )
        user.set_password(form.password1.val)
        user.save()

        Profile.objects.create(
            user = user,
            phone = form.phone.val,
            company_name = form.company_name.val,
            details = Transporter.objects.create(),
            address = Address.objects.create(
                city = form.address.city.val,
                province = form.address.province.val,
                country = form.address.country.val,
                street = form.address.street.val,
                postal_code = form.address.postal.val
            )
        )

        e = send_multipart_email('Activate Your PROJECT Account', 
            'emails/transporter_joined', 
            {'user':user, 'fee': settings.PROJECT_FEE * Decimal('100.00'),'settings':settings},
            [user.email],
            send_immediately=False
        )
        e.attach_file('/home/PROJECT/webapps/media/files/InsuranceLetter.pdf')
        e.send() # <------- PROBLEM IS HERE

        send_multipart_email('Transporter Joined', 
            'emails/staff_transporter_joined', 
            {'trans':user,'settings':settings},
            ['service@PROJECT.com','EMAIL@gmail.com']
        )
        messages.info(request, 'Thank you for registering. Please check your email for details on how to activate your account.')
        return redirect('home')





def send_multipart_email(subject, template, data_dict, recipient_list, from_email=settings.DEFAULT_FROM_EMAIL, send_immediately=True):
    if not isinstance(recipient_list, list): recipient_list = [recipient_list]

    d = {'settings':settings} # default context vars
    d.update(data_dict)
    c = Context(d)

    try:
        tt = loader.get_template(template+'.txt')
    except:
        try:
            ht = loader.get_template(template+'.html')
        except:
            raise Exception('Neither `%(tmpl)s.txt` or `%(tmpl)s.html` could be found.' % {'tmpl':template})
        else:
            e = EmailMultiAlternatives(subject, ht.render(c), from_email, recipient_list)
            e.content_subtype = 'html'
    else:
        e = EmailMultiAlternatives(subject, tt.render(c), from_email, recipient_list)

        try:
            ht = loader.get_template(template+'.html')
        except:
            pass
        else:
            e.attach_alternative(ht.render(c), 'text/html')

    if send_immediately:
        e.send()

    return e




[PROJECT@SERVER emails]$ ls
account_activated.txt      shipper_accepted_bid.txt         transporter_awarded_shipment.txt
base.html                  shipper_joined.html              transporter_bid_declined.html
base.txt                   shipper_joined.txt               transporter_bid_declined.txt
forgot_password.html       staff_transporter_joined.html    transporter_joined.html
forgot_password.txt        staff_transporter_joined.txt     transporter_joined.txt
invoice_generated.html     transporter_approved.html        transporter_lost_auction.html
invoice_generated.txt      transporter_auction_closed.html  transporter_lost_auction.txt
shipper_accepted_bid.html  transporter_auction_closed.txt

机票:http://code.djangoproject.com/ticket/13364

Answer 1

我无法重现您所描述的任何内容(类似于回答问题的拉米罗，也无法重现问题)。如果我有两个具有相同基本名称、不同扩展名、不同内容的模板，并从代码中剪切和粘贴以从 View 发送电子邮件，我会在发送的邮件中看到不同的内容(在 Gmail 上并检查“原始”) )。

您说您的 .html 和 .txt 文件不同，但根据您所说的一切，听起来您的 .html 文件确实具有 .txt 内容。您已经列出了文件系统和应用程序目录加载器:哪一个应该找到这些文件？也许在另一个正在查找的地方有一个杂散文件，其内容有错误？

shell 中的一些实验可能会帮助您进行调试。加载 .html 模板并查看它是否确实包含您认为的内容。例如:

>>> from django.template import loader
>>> from pprint import pprint
>>> template = 'emails/dun'
>>> ht = loader.get_template(template+'.html')
>>> pprint(ht.nodelist)
[<Text Node: '<p><strong>Mr. '>,
 <Variable Node: user>,
 <Text Node: '</strong>: Pay us $ '>,
 <Variable Node: amt>,
 <Text Node: ' before next Friday.</p>
'>]

验证 .html 版本与 .txt 版本是否不同:

>>> tt = loader.get_template(template+'.txt')
>>> pprint(tt.nodelist)
[<Variable Node: user>,
 <Text Node: ': This is an important me'>,
 <Variable Node: amt>, 
 <Text Node: '.
'>]

如果加载时相同，那么你需要调查一下为什么没有找到正确的模板文件，或者为什么找到的模板文件内容错误，答案与渲染无关() 代码。只有当它们在加载时不同并且在渲染时相同时才需要查看 render() 。

更新:因此，根据问题更新，加载的模板有所不同，因为每个模板都扩展了不同名称的基本模板。那么下一个问题是，这些基本模板是否不同？更改我的游戏场景以匹配您的游戏场景，至少就最初加载的模板扩展基本模板而言，我仍然无法重现该问题。我看到加载了不同的模板:

>>> from django.template import loader, Context
>>> from pprint import pprint
>>> template = 'emails/dun'
>>> ht = loader.get_template(template+'.html')
>>> pprint(ht.nodelist)
[<ExtendsNode: extends "emails/base.html">]
>>> tt = loader.get_template(template+'.txt')
>>> pprint(tt.nodelist)
[<ExtendsNode: extends "emails/base.txt">]

渲染方式不同:

>>> c = Context({'user': 'Joe', 'amt': '50.00'})
>>> tt.render(c)
u'\nJoe: This is an important message. You owe us $ 50.00.\n\n'
>>> ht.render(c)
u'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xm
lns="http://www.w3.org/1999/xhtml">\n<head>\n<title></title>\n</head>\n<body>\n\n<p><strong>Mr. Joe</strong>: Pay us $ 5
0.00 before next Friday.</p>\n\n</body>\n</html>\n'

因为引用的基础模板内容不同:

>>> template = 'emails/base'
>>> ht = loader.get_template(template+'.html')
>>> pprint(ht.nodelist)
[<Text Node: '<!DOCTYPE html PUBLIC "-/'>,
 <Block Node: title. Contents: []>,
 <Text Node: '</title>
</head>
<body>
'>,
 <Block Node: content. Contents: []>,
 <Text Node: '
</body>
</html>
'>]
>>> tt = loader.get_template(template+'.txt')
>>> pprint(tt.nodelist)
[<Block Node: content. Contents: []>, <Text Node: '
'>]
>>>