开启代码之旅 Launch With Code


142 浏览 1 year, 2 months

12 Use Custom Django Middleware to Track Shares

版权声明: 转载请注明出处 http://www.codingsoho.com/

添加middleware处理分享页

  • 添加middleware类
  • 从middleware中获取reference值 (url中的内容),并将这个值存入session
  • 在view中将session中的值拿到,并根据这个值get到join

https://docs.djangoproject.com/en/1.10/topics/http/middleware/

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    # Uncomment the next line for simple clickjacking protection:
    # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'lwc.middleware.ReferMiddleware',
)

创建lwc/middleware.py

from joins.models import Join

class ReferMiddleware():
    def process_request(self, request):
        ref_id = request.GET.get("ref")
        try:
            obj = Join.objects.get(ref_id = ref_id)
        except:
            obj = None

        if obj:
            request.session['join_id_ref'] = obj.id
def home(request):
    try:
        join_id = request.session['join_id_ref']
        obj = Join.objects.get(id=join_id)
    except:
        obj = None  
    form = JoinForm(request.POST or None)
    if form.is_valid():
        new_join = form.save(commit = False)
        email = form.cleaned_data['email']
        new_join_old, created = Join.objects.get_or_create(email = email)
        if created:
            new_join_old.ref_id = get_ref_id()
            new_join_old.ip_address = get_ip(request)
            new_join_old.save()
        return HttpResponseRedirect("/%s" %(new_join_old.ref_id))       
    context = {"form":form}
    template = "home.html"
    return render(request, template, context)