我在谷歌应用引擎中有一个表单，我想同时上传一张图片和我的所有文本。我是否必须将其分成两个单独的页面和操作？
这是我的上传处理程序：
class UploadHandler(blobstore_handlers.BlobstoreUploadHandler):
def upload(self, reseller_id, imgfile):
upload_files = imgfile
blob_info = upload_files[0]
key = blob_info.key()
r = Reseller.get_by_id(reseller_id)
r.blob_key_logo = str(key)
r.put();
这是我创建的新经销商对象：
class NewReseller(BaseHandler):
def get(self):
if self.user:
self.render("new_reseller.html")
else:
self.redirect("/display_resellers")
def post(self):
name = self.request.get('name')
website = self.request.get('website')
information = self.request.get('information')
address = self.request.get('address')
city = self.request.get('city')
state = self.request.get('state')
zipcode = self.request.get('zipcode')
email = self.request.get('email')
phone = self.request.get('phone')
r = Reseller( name = name,
website = website,
information = information,
address = address,
city = city,
state = state,
zipcode = zipcode,
email = email,
phone = phone)
r.put()
theresellerid = r.key().id()
#And then Upload the image
u = UploadHandler()
logo_img = u.get_uploads('logo_img')
u.upload(theid, logo_img)
self.redirect('/display_resellers')
我认为我的问题是这一行：
logo_img = u.get_uploads('logo_img')
它弹出错误消息
for key, value in self.request.params.items():
AttributeError: 'NoneType' object has no attribute 'params'
不知何故，我需要这个 NewReseller 类从 BlobstoreUploadHandler 继承 .getuploads 以便我可以这样做：
logo_img = self.get_uploads('logo_img')
或者可能有更好的方法，因为这看起来有点乱。
所以我的问题是如何在一个页面上以一种形式上传文件和数据。我可以用两个单独的页面来做到这一点。一种用于添加经销商，另一种用于添加图像，但这似乎过于复杂。
我试图从这个问题中遵循一些步骤和线索：
******编辑*****下面的工作实现：
class EditReseller(BaseHandler, blobstore_handlers.BlobstoreUploadHandler):
def get(self, reseller_id):
if self.user:
reseller = Reseller.get_by_id(int(reseller_id))
upload_url = blobstore.create_upload_url('/upload')
image = True
if reseller.blob_key_logo is None:
image = False
self.render('edit_reseller.html', r=reseller, reseller_id=reseller_id, upload_url=upload_url, image=image)
else:
self.redirect('/admin')
class UploadHandler(blobstore_handlers.BlobstoreUploadHandler):
def post(self):
reseller_id = self.request.get('reseller_id')
upload_files = self.get_uploads('logo_img')
if upload_files:
blob_info = upload_files[0]
key = blob_info.key()
r = Reseller.get_by_id(int(reseller_id))
r.blob_key_logo = str(key)
r.put();
name = self.request.get('name')
website = self.request.get('website')
information = self.request.get('information')
address = self.request.get('address')
city = self.request.get('city')
state = self.request.get('state')
zipcode = self.request.get('zipcode')
email = self.request.get('email')
phone = self.request.get('phone')
if name and website and information and email and phone and address and city and state and zipcode:
r = Reseller.get_by_id(int(reseller_id))
r.name = name
r.website = website
r.information = information
r.address = address
r.city = city
r.state = state
r.zipcode = zipcode
r.email = email
r.phone = phone
r.put()
else:
error = "Looks like your missing some critical info"
self.render("edit_reseller.html", name=name, website=website, information=information, address=address, city=city, zipcode=zipcode, email=email, phone=phone, error=error)
self.redirect("/edit_reseller/" + reseller_id)