Question

我有一个索引视图，显示培训师名称，位置等，以及下载他们的个人资料的按钮（已作为pdf在数据库中）。我根据一些参数搜索并过滤这些参数。现在我希望能够选择其中一些并下载所选的Trainer Profiles.Im是Django的新手，无法弄清楚如何做到这一点。这是我的代码。它说'FieldFile对象不可调用' views.py def下载（请求）：导入zipfile import os

file = zipfile.ZipFile("C:\\Downloads\\test.zip", "w")

filelist = []
filelist+= 'Trainer.checkboxoption' in request.REQUEST
for i in filelist:
   file.write(i)

file.close()
return render(request,'trainer/index.html')

的index.html

    <form action="download/" method="post">
            <div class="caption">
                <div >
                    <table style="width:100%" class="table">
                        <tr>
                            <th>#</th>
                            <th>Name</th>
                            <th>Technology</th>
                            <th>Location</th>
                            <th> View</th>
                            <th>Download</th>
                            <th>Delete</th>
                        </tr>
                        {% for trainer in all_trainers %}
                        <tr>
                            <td><input type="checkbox" id="trainer{{ forloop.counter }}" name="trainer" value="{{ trainer.id }}"></td>
                                <td> <a href="/trainer/{{ trainer.id }}">{{ trainer.name }}</td>
                                <td>{{ trainer.technology }}</td></a>
                                <td>{{ trainer.location }}</td>
                                <!-- View Details -->
                                <td><a href="/trainer/{{ trainer.id }}" class="btn btn-primary btn-sm">View Details</a></td>

                                <td><a href="../media/{{ trainer.trainer_profile }}" class="btn">Download PDF</a></td>

                                <!-- Delete Album -->
                                <td><form action="trainer/{{trainer.id }}/delete/" method="post">
                                    {% csrf_token %}
                                    <input type="hidden" name="trainer_id" value="{{ trainer.id }}" />
                                    <button type="submit" class="btn btn-default btn-sm">
                                        <span class="glyphicon glyphicon-trash"></span>
                                    </button>
                                </form></td>
                            </tr>
                        {% endfor %}
                    </table>
                </div>
            </div>
            <input type="submit" value="Download ZIP">
        </form>

Answer 1

views.py：

    def download(request):
        import zipfile
        filef = zipfile.ZipFile("test.zip", "w")
        var = request.POST.getlist('checks')
        pdfprofile = []
        for i in var:
            trainer= Trainer.objects.get(pk=i)
            pdfprofile.append(trainer.trainer_profile)

        for i in pdfprofile:
            filef.write("D:\\Django\\myproduct\\media\\"+str(i))
        filef.close()

        response = HttpResponse(open("test.zip", "rb").read(), content_type='application/zip')
         response['Content-Disposition'] = 'attachment; filename=test.zip'
        return response

Django：压缩所选对象的pdf

1 个答案: