Question

我正在使用Nginx和Gunicorn将Django网站部署到DigitalOcean Droplet。

这个想法是每个月根据当前日期更新日期。在本地可以正常运行，但是一旦部署，该值就不会更新，为了使其更新，我必须使用以下命令重新启动Gunicorn：

sudo systemctl restart gunicorn

您知道什么在阻止更新变量吗？

该项目有一个名为“ pages”的应用程序，它有一个 utils.py 负责用两种语言计算和准备日期：

from babel.dates import format_date
import calendar
import datetime
import locale
import time


def cat_date():

    # get current date
    num_date = str(time.strftime("%d/%m/%Y"))
    current_month = int(time.strftime("%m"))
    current_year = int(time.strftime("%Y"))
    today = datetime.date.today()

    # get last day of current month
    last_day_current_month = calendar.monthrange(current_year, current_month)[1]
    date_last = today.replace(day=last_day_current_month)
    date_last_day_current_month_num = date_last.strftime("%d/%m/%Y")

    # get last week date
    date_prev_week = today - datetime.timedelta(days=7)
    num_date_prev_week = date_prev_week.strftime("%d/%m/%Y")
    month_lw = int(date_prev_week.strftime("%m"))
    year_lw = int(date_prev_week.strftime("%Y"))

    # get last day of previous month
    last_day_previous_month = calendar.monthrange(year_lw, month_lw)[1]
    date_last_prev = date_prev_week.replace(day=last_day_previous_month)
    date_last_day_previous_month_num = date_last_prev.strftime("%d/%m/%Y")

    # use babel to get the long readable formated date
    catalan_text_date_current = format_date(date_last, format='long', locale='ca')
    catalan_text_date_previous = format_date(date_last_prev, format='long', locale='ca')

    # choose date to display depending on current date
    day_today = int(today.strftime("%d"))
    if day_today > 3:
        return date_last_day_current_month_num, catalan_text_date_current
    else:
        return date_last_day_previous_month_num, catalan_text_date_previous


def es_date():

    # get current date
    num_date = str(time.strftime("%d/%m/%Y"))
    current_month = int(time.strftime("%m"))
    current_year = int(time.strftime("%Y"))
    today = datetime.date.today()

    # get last day of current month
    last_day_current_month = calendar.monthrange(current_year, current_month)[1]
    date_last = today.replace(day=last_day_current_month)
    date_last_day_current_month_num = date_last.strftime("%d/%m/%Y")

    # get last week date
    date_prev_week = today - datetime.timedelta(days=7)
    num_date_prev_week = date_prev_week.strftime("%d/%m/%Y")
    month_lw = int(date_prev_week.strftime("%m"))
    year_lw = int(date_prev_week.strftime("%Y"))

    # get last day of previous month
    last_day_previous_month = calendar.monthrange(year_lw, month_lw)[1]
    date_last_prev = date_prev_week.replace(day=last_day_previous_month)
    date_last_day_previous_month_num = date_last_prev.strftime("%d/%m/%Y")

    # use babel to get the long readable formated date
    spanish_text_date_current = format_date(date_last, format='long', locale='es')
    spanish_text_date_previous = format_date(date_last_prev, format='long', locale='es')

    # choose date to display depending on current date
    day_today = int(today.strftime("%d"))
    if day_today > 3:
        return date_last_day_current_month_num, spanish_text_date_current
    else:
        return date_last_day_previous_month_num, spanish_text_date_previous


date_last_day_num, spanish_text_date = es_date()
date_last_day_num, catalan_text_date = cat_date()

负责将变量传递到模板的 context_processors.py ：

from .utils import date_last_day_num, catalan_text_date, spanish_text_date

def last_day(request):
    context = {
        'date_last_day_num': date_last_day_num,
        'catalan_text_date': catalan_text_date,
        'spanish_text_date': spanish_text_date,
    }
    return context

然后我只是从模板中调用变量：

{{ spanish_text_date }}

编辑：

Nginx-> my-site_project文件：

# Expires map
map $sent_http_content_type $expires {
    default                    off;
    text/html                  epoch;
    text/css                   max;
    application/javascript     max;
    ~image/                    max;
}

server {
    server_name 123.123.123.12 my-site.com www.my-site.com;

    gzip on;
    gzip_comp_level    5;
    gzip_min_length    256;
    gzip_proxied       any;
    gzip_vary          on;

    gzip_types
    application/atom+xml
    application/javascript
    application/json
    application/ld+json
    application/manifest+json
    application/rss+xml
    application/vnd.geo+json
    application/vnd.ms-fontobject
    application/x-font-ttf
    application/x-web-app-manifest+json
    application/xhtml+xml
    application/xml
    font/opentype
    image/bmp
    image/svg+xml
    image/x-icon
    text/cache-manifest
    text/css
    text/plain
    text/vcard
    text/vnd.rim.location.xloc
    text/vtt
    text/x-component
    text/x-cross-domain-policy;

    expires $expires;

    location = /favicon.ico { access_log off; log_not_found off; }

    location /static/ {
        root /home/user/my-site/src;
    }
 location /media/ {
        root /home/user/my-site/src;
    }

    location / {
        include proxy_params;
        proxy_pass http://unix:/run/gunicorn.sock;
    }

    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/my-site.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/my-site.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}
server {
    if ($host = www.my-site.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot
    if ($host = my-site.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot

    listen 80;
    server_name my-site.com www.my-site.com;
    return 404; # managed by Certbot
}

很抱歉发布了这么长时间，但我认为这些信息可能是相关的。感谢您的时间和帮助。

谢谢！

Answer 1

第一次导入 utils.py 时，将计算变量catalan_text_date ...，因为它们位于文件的顶层。当您启动gunicorn时会发生这种情况，因为它会导入 context_processors.py ，然后又会导入这些变量。从那时起，它不再需要再次调用cat_date()，因为catalan_text_date在内存中并且是全局的。

您应该在上下文处理器中调用函数es_date()和cat_date()，而不要使用计算出的变量。只需导入es_date和cat_date，然后在last_day函数中使用它们即可。

Django-来自上下文处理器的变量在部署时未更新，但在本地工作

1 个答案: