将App Engine数据存储中的数据导出为Google云端硬盘电子表格

Question

我有一个App Engine应用程序，上面记着我的每月开支以及一些评论或原因。 我想将这些数据导出到Google云端硬盘电子表格中 。 我使用Django框架。

我在这里浏览了Google提供的教程。 但是他们已经使用webapp2和jinja实现了它。 而且，由于我不使用Django ORM，因此使用Django实施文档似乎太过时了。

以下是我用于上传的代码示例。 如果在下面粘贴的是垃圾，我深表歉意。 请帮忙。

from django.utils.datastructures import SortedDict
import os
from apiclient.discovery import build
from apiclient.http import MediaFileUpload
from oauth2client.appengine import OAuth2DecoratorFromClientSecrets

decorator = OAuth2DecoratorFromClientSecrets(os.path.join(os.path.dirname(__file__ ),    'clientSecrets.json'), 'https://www.googleapis.com/auth/drive')
drive_service = build('drive', 'v2')

class Exporter(object):
    serializedObjects = []
    mime_type = 'text/plain'
    fileToExport = None
    request = None

    def __init__(self, serializedObjects, request):
        self.serializedObjects = serializedObjects
        self.request = request

    def createCSV(self):
        import csv
        import StringIO

        stdout = StringIO.StringIO()
        writer = csv.writer(stdout)
        for obj in self.serializedObjects:
            for value in obj.values():
                writer.writerow([value])
        # I will get the csv produced from my datastore objects here.
        # I would like to upload this into a Google Spreadsheet.
        # The child class ExportToSpreadSheet tries to do this.
        return stdout.getvalue()

class ExportToSpreadSheet(Exporter):

    def __init__(self, *args, **kwargs):
            super(ExportToSpreadSheet, self).__init__(*args, **kwargs)
            self.mime_type = 'application/vnd.google-apps.spreadsheet'

    def create(self):
            import datetime

            valueToDrive = self.createCSV()
            media_body = MediaFileUpload(valueToDrive, mimetype=self.mime_type, resumable=True)
            body = {
        'title' : 'MyExpense_%s' % datetime.datetime.now().strftime('%d_%b_%Y_%H_%M_%S'),
        'description' : '',
        'mimeType' : self.mime_type
            }
            self.fileToExport = drive_service.files().insert(body=body, media_body=media_body, convert=True)
            return self.fileToExport

    @decorator.oauth_aware
    def upload(self):

            if decorator.has_credentials():
                    self.create()
                    self.fileToExport.execute(decorator.http())
                    return self.fileToExport
            raise Exception('user does not have the credentials to upload to google drive.')

@ decorator.oauth_aware仅适用于webapp.RequestHandler子类。 我之所以这样说，是因为在运行代码时遇到此错误。

INFO     2013-09-19 11:28:04,550 discovery.py:190] URL being requested: https://www.googleapis.com/discovery/v1/apis/drive/v2/rest?userIp=%3A%3A1
ERROR    2013-09-19 11:28:05,670 main.py:13] Exception in request:
Traceback (most recent call last):
  File "/home/dev5/divya/jk/MyApp/ItsMyTuition/SDK/google_appengine/lib/django-1.2/django/core/handlers/base.py", line 100, in get_response
    response = callback(request, *callback_args, **callback_kwargs)
  File "/home/dev5/divya/jk/MyApp/ItsMyTuition/ItsMyTuition/src/tuition/json/ajaxHandler.py", line 27, in mainHandler
    responseValues = funtionToCall(*args)
  File "/home/dev5/divya/jk/MyApp/ItsMyTuition/ItsMyTuition/src/tuition/json/ajaxHandler.py", line 69, in export
    uploadedFile = exporterInstance.upload()
  File "/home/dev5/divya/jk/MyApp/ItsMyTuition/ItsMyTuition/src/oauth2client/appengine.py", line 770, in setup_oauth
    self._create_flow(request_handler)
  File "/home/dev5/divya/jk/MyApp/ItsMyTuition/ItsMyTuition/src/oauth2client/appengine.py", line 734, in _create_flow
    redirect_uri = request_handler.request.relative_url(
AttributeError: 'ExportToSpreadSheet' object has no attribute 'request'
INFO     2013-09-19 11:28:05,777 module.py:593] default: "POST /ajaxCall/export HTTP/1.1" 200 964

由于我使用的是Django框架，因此我无法获得请求处理程序。

如何在我的方案中进行整合或实现？ 我将非常感谢我可能错过的任何代码示例或相关链接。

而且，整个过程都发生在ajax调用中。

提前致谢。

Answer 1

使用mimeType=text/csv并在上传过程中，请求将csv转换为电子表格：

drive_service.files().insert(covert=True, body=body, media_body=media_body, convert=True)