使用 Django 和 Mailchimp 的电子邮件订阅表单在部署后不起作用 (DigitalOcean)

Posted 2023-03-24

【中文标题】使用 Django 和 Mailchimp 的电子邮件订阅表单在部署后不起作用 (DigitalOcean)

【英文标题】：An email subscription form with Django and Mailchimp doesn't work after deployment (DigitalOcean)

【发布时间】：2021-03-20 09:14:14

【问题描述】：

我用 Django 和 Mailchimp 构建了一个简单的电子邮件订阅表单。它在本地工作得很好，但是，在将其部署到 DigitalOcean 之后，它似乎不起作用。我以为它可能与数据库有关，但我确实在服务器上迁移并且没有收到任何错误（在服务器上使用 Ubuntu 20.04）。

希望有人有线索，可以帮助我解决这个问题。

这是表格： https://www.winoutt.io

views.py

from django.contrib import messages
from django.http import HttpResponseRedirect

# from django.conf import settings
from .models import Signup
from decouple import config

import json
import requests


# MAILCHIMP_API_KEY = settings.MAILCHIMP_API_KEY
# MAILCHIMP_DATA_CENTER = settings.MAILCHIMP_DATA_CENTER
# MAILCHIMP_EMAIL_LIST_ID = settings.MAILCHIMP_EMAIL_LIST_ID


MAILCHIMP_API_KEY = config("MAILCHIMP_API_KEY")
MAILCHIMP_DATA_CENTER = config("MAILCHIMP_DATA_CENTER")
MAILCHIMP_EMAIL_LIST_ID = config("MAILCHIMP_EMAIL_LIST_ID")

api_url = f"https://MAILCHIMP_DATA_CENTER.api.mailchimp.com/3.0"
members_endpoint = f"api_url/lists/MAILCHIMP_EMAIL_LIST_ID/members"


def subscribe_email(email):
    data = "email_address": email, "status": "subscribed"
    req = requests.post(
        members_endpoint, auth=("", MAILCHIMP_API_KEY), data=json.dumps(data)
    )
    return req.status_code, req.json()


def newsletter_email_list(request):
    if request.method == "POST":
        email = request.POST.get("email", None)
        email_query = Signup.objects.filter(email=email)

        if email:
            if email_query.exists():
                messages.info(request, "You are already on the waitlist.")
            else:
                try:
                    subscribe_email(email)
                    subscribed = Signup.objects.create(email=email)
                    subscribed.save()
                    messages.success(
                        request,
                        "Thank you! We're putting you on the waitlist. Bear with us.",
                    )
                except:
                    messages.warning(request, "Something went wrong. Please try again.")
                    return HttpResponseRedirect(request.META.get("HTTP_REFERER"))
        else:
            messages.warning(request, "Please enter your email")
            return HttpResponseRedirect(request.META.get("HTTP_REFERER"))

    return HttpResponseRedirect(request.META.get("HTTP_REFERER"))

models.py

from django.db import models


class Signup(models.Model):
    email = models.CharField(max_length=100)
    timestamp = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return self.email

urls.py

from django.conf import settings
from django.conf.urls.static import static
from django.contrib import admin
from django.urls import path, include
from pages.views import custom_page_not_found_view, PageView
from about.views import AboutView
from privacy.views import PrivacyView
from newsletter.views import newsletter_email_list


handler404 = "pages.views.custom_page_not_found_view"

urlpatterns = [
    path("jet/", include("jet.urls", "jet")),
    path("admin/", admin.site.urls),
    path("", PageView.as_view(), name="all_pages"),
    # path("<slug>/", PostDetailView.as_view(), name="post_detail"),
    path("tinymce/", include("tinymce.urls")),
    path("about/", AboutView.as_view(), name="about"),
    path("privacy-policy/", PrivacyView.as_view(), name="privacy"),
    path("newsletter/subscribe/", newsletter_email_list, name="newsletter_subscribe"),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

模板

<form action="% url 'newsletter_subscribe' %" class="flex items-end justify-center w-full mt-4" method="POST">
        % csrf_token %
        <input type="email" id="email" name="email" class="w-full px-3 py-1 mt-2 text-base leading-8 text-gray-100 transition-colors duration-200 ease-in-out border border-gray-700 rounded outline-none bg-blackLight focus:border-blue-500" placeholder="Your email" value=" email " required>
    </div>
    <button type="submit" class="inline-flex px-8 py-2 mt-4 mb-12 ml-4 text-lg text-white bg-blue-600 border-0 border-transparent rounded-lg shadow focus:outline-none hover:bg-blue-700" value="Send">Join</button>
    </form>

.env

# Database Configurations
DB_ENGINE="django.db.backends.postgresql"
DB_NAME=""
DB_USER=""
DB_PASSWORD=""
DB_HOST="localhost"

【参考方案1】：

你们有关于 DigitalOcean 的数据库吗？如果您托管的是本地数据库，则需要更改为 sqlite 后端，或附加到云 RDBMS。

【讨论】：

我在本地使用了 postgresql，并在 DigitalOcean 上创建了一个新的用于生产。

【参考方案2】：

这似乎是一个许可问题。但是，我通过编辑 gunicorn.service 文件解决了这个问题。

我打开了 gunicorn.service 文件

sudo nano /etc/systemd/system/gunicorn.service

编辑前

[Unit]
Description=gunicorn daemon
Requires=gunicorn.socket
After=network.target

[Service]
User=djangoadmin
Group=www-data
WorkingDirectory=/home/djangoadmin/canny
ExecStart=/home/djangoadmin/.local/share/virtualenvs/canny-9cyzXi2O/bin/gunicorn \
          --access-logfile - \
          --workers 3 \
          --bind unix:/run/gunicorn.sock \
          config.wsgi:application

[Install]
WantedBy=multi-user.target

编辑后

[Unit]
Description=gunicorn daemon
Requires=gunicorn.socket
After=network.target

[Service]
User=djangoadmin
Group=djangoadmin
WorkingDirectory=/home/djangoadmin/canny
ExecStart=/home/djangoadmin/.local/share/virtualenvs/canny-9cyzXi2O/bin/gunicorn \
          --access-logfile - \
          --workers 3 \
          --bind unix:/run/gunicorn.sock \
          config.wsgi:application

[Install]
WantedBy=multi-user.target

我只是更改了“组”部分，以便它与我的用户匹配。

成功了。

【讨论】：

我还生成了一个新的 API 密钥，仅供生产使用。