django1.8-如何在上传Excel并插入数据库时​​手动附加信息

Question

excel就像左边的图片有3列.

当插入数据库时​​,我需要手动添加2列,如右图所示,最后在数据库中共插入5列.这些2个附加列信息从其他数据库中获取.

另一个功能是,如果已有文件,新上传的文件将覆盖现有文件.[下面的views.py中的片段]

我已经尝试了两个3方工具,但没有工作,所以也许只是使用django中嵌入的工具更好.

版本:Python 2.7.Excel 2013. Django1.8.

任何帮助都非常感谢.Hope可以提供有关如何附加这两列的详细信息片段:

uploader = request.session['uploader']
Date=request.session['date']

forms.py

from django.core.files.storage import FileSystemStorage
from financialdata.storage import OverwriteStorage

class XXXXDataForm(forms.Form):
    XXXXfile=forms.FileField(label='Select a file')

views.py

from django.core.files.storage import FileSystemStorage

def import_data(request):
    if request.method == "POST":
        form = XXXXForm(request.POST,request.FILES)
        if form.is_valid():
            newdoc= XXXX(docfile=request.FILES['docfile'])
            newdoc.save()
            return HttpResponseRedirect(reverse('homepage'))
        else:
            return HttpResponseBadRequest()
    else:
        form = XXXXForm()
    return render_to_response(
        'dataentry.html',
        {
            'form': form,
            'title': 'Import excel data into database example',
            'header': 'Please upload XXXX.xlsx:',
            'message': 'File Saved!'
        },
        context_instance=RequestContext(request))

<!--How can I embed the following part to previous part?-->

class OverwriteStorage(FileSystemStorage):
    def _save(self, name, content):
        if self.exists(name):
            self.delete(name)
        return super(OverwriteStorage, self)._save(name, content)

    def get_available_name(self, name):
        return name

Answer 1

可能是这样的:

我没有运行我的代码,这是一个例子

if request.method == "POST":
        form = XXXXForm(request.POST,request.FILES)
        if form.is_valid():
            docfile=request.FILES['docfile']


        if isinstance(docfile, (InMemoryUploadedFile, TemporaryUploadedFile)):
            book = xlrd.open_workbook(file_contents=docfile.read(), formatting_info=True, on_demand=True)
        else:
            book = xlrd.open_workbook(filename=docfile, formatting_info=True, on_demand=True)

        sheet = book.sheet_by_index(0)
        new_csv_file = csv.writer(open('new_filename', 'w'))
        # read file
        for line in range(1, sheet.nrows):
            new_row = [request.session.get('uploader'), request.session.get('date')]
            new_row.extend(sheet.row_values(line))                
            new_csv_file.writerow(new_row)


...