Question

我有一个django网站，其中包含一个包含许多服务器详细信息的表。在表格的其中一列中有＆＃34; ILO＆＃34;服务器的IP。

我希望网站检查＆＃34; ILO＆＃34; IP在http请求中工作，如果是，则应显示链接，否则显示文本。

因此，在结果中，将是具有http链接到ILO IP且有些没有。

的服务器

在视图的主要类中，我创建了一个名为＆＃34; checkUrlAvailable＆＃34;的函数。我尝试在我的index.html中使用，并检查if条件，如果我得到真或假..

出于某种原因，我得到了错误 -

无法解析余数：＆＃39;（server.IP）＆＃39;来自＆check; checkUrlAvailable（server.IP）＆＃39;

有谁知道为什么？

的index.html -

  <tr>
        <th><center> #</center></th>
        <th width="100%"><center>  Server Name </center></th>
        <th><center>  Owner </center></th>
        <th><center>  Project </center></th>
        <th width="100%"><center>  Description </center></th>
        <th width="100%"><center>  IP Address </center></th>
        <th width="100%"><center> ILO </center></th>
        <th><center>  Rack </center></th>
        <th><center>  Status </center></th>
        <th><center>  Actions {{ response }}  </center></th>


        </tr>
        </thead>
    <tbody>

                {% for server in posts %}


        <tr>
          <div class ="server">
            <td></td>
            <td style='white-space: nowrap'><center>{{ server.ServerName }}</center></td>
            <td width="100%"><center>{{ server.Owner }}</center></td>
            <td style='white-space: nowrap'><center>{{ server.Project }}</center></td>
            <td style='white-space: nowrap'><center>{{ server.Description }}</center></td>
            <td width="100%"><center>{{ server.IP }}</center></td>
            <td style='white-space: nowrap'><center>
                {% if checkUrlAvailable(server.ILO) is True %}
      <a href="//{{ server.ServerName }}.ilo.lab.radcom.co.il"> http://{{ server.ServerName }}.ilo.lab.radcom.co.il </a>
            {% else %}
        http://{{ server.ServerName }}.ilo.lab.radcom.co.il
            {% endif %}

            <td width="100%"><center>{{ server.Rack }}</center></td>
            <td width="100%"><h4><span class="badge badge-success">Online</span></h4></td></center>

views.py -

class HomeView(TemplateView):

    template_name = 'serverlist.html'

    def checkUrlAvailable(url):
        resp = requests.head(url)
        if resp.status_code == 200:
            return True
        else:
            return False


    def get(self, request):

        form = HomeForm()
        query = request.GET.get("q")
        posts = serverlist.objects.all()



        forms = {}

        if query:
            posts = serverlist.objects.filter(Q(ServerName__icontains=query) | Q(Owner__icontains=query) | Q(Project__icontains=query) | Q(Description__icontains=query) | Q(IP__icontains=query) | Q(ILO__icontains=query) | Q(Rack__icontains=query))
        else:
            posts = serverlist.objects.all()
        for post in posts:
            forms[post.id] = HomeForm(instance=post)
        args = {'form' : form,'forms': forms, 'posts' : posts}




        return render(request, self.template_name,args)

    def post(self,request):
        form = HomeForm(request.POST)
        posts = serverlist.objects.all()
        forms = {}


        if form.is_valid(): # Checks if validation of the forms passed
            post = form.save(commit=False)
            post.save()
            messages.success(request,'{0} has been added successfully!'.format(post.ServerName))

            return redirect('serverlist')
        messages.error(request,'Servername is required, please refresh the page and try again.')
        for post in posts:
            forms[post.id] = HomeForm(instance=post)
        args = {'form' : form, 'forms': forms, 'posts' : posts}

        return render(request, self.template_name,args)

Answer 1

你不能在django模板中调用函数。您需要定义自定义template tag，或者可以在checkUrlAvailable模型中移动serverlist：

class serverlist(models.Model):
   ...
    def checkUrlAvailable(self):
        resp = requests.head(self.ILO)
        if resp.status_code == 200:
            return True
        else:
            return False

并在模板中使用它：

{% if server.checkUrlAvailable %}

Django网站没有正确检查链接

1 个答案: