Python 带有GAE的HTTP post（和WTForms）_Python_Google App Engine_Jinja2_Wtforms

Python 带有GAE的HTTP post（和WTForms）

python google-app-engine

Python 带有GAE的HTTP post（和WTForms）,python,google-app-engine,jinja2,wtforms,Python,Google App Engine,Jinja2,Wtforms,嗨，当使用blobstoreuloadhandler并最好使用i18n本地化消息进行验证时，如何使用WTForms获取HTTP post中的变量？这是我不起作用的代码： class AdForm(Form): name = TextField(_('Name')) title = TextField(_('title')) text = TextAreaField(_('Text'),widget=TextArea()) phonenumber = TextFi

嗨，当使用

blobstoreuloadhandler

并最好使用i18n本地化消息进行验证时，如何使用WTForms获取HTTP post中的变量？这是我不起作用的代码：

class AdForm(Form):
    name = TextField(_('Name'))
    title = TextField(_('title'))
    text = TextAreaField(_('Text'),widget=TextArea())
    phonenumber = TextField(_('Phone number'))
    phonenumberhide = BooleanField(_('Display phone number on site'))
    price = TextField(_('Price'))
    password = PasswordField(_('Password'))
    email = TextField(_('Email'))

当我试图访问通过表单发布的数据时，数据显示为

None

：

form = AdForm(data=self.request.POST)
if form.title:
  logging.info('getting title:'+form.title.data)
  ad.title = form.title.data
  ad.save()

以上内容不会将任何内容保存到数据存储中，这是它的来源模板

  <div class="labelform">
         <div class="labelform" style="clear:left;">
    <label> {% filter capitalize %}{% trans %}title{% endtrans %}{% endfilter %}:</label>
  </div>
  </div>
  </td><td>
{{ form.title }}{% if form.title.errors %}
        <ul class="errors">{% for error in form.title.errors %}<li>{{ error }}</li>{% endfor %}</ul>
    {% endif %}

记录输出：

信息2011-11-05 23:17:24653 main.py:1504]获取请求信息
2011-11-05 23:17:24653 main.py:1507]获得头衔：

更新2

我删除了WTForms依赖项，但它仍然不起作用。行

logging.info（'get data:'+self.request.get（'title'，'0'））

仅输出0，即使该表单只是一个常规的http post表单：

 <form action="{{form_url}}" name="upload" method="post" enctype="multipart/form-data" accept-charset="utf-8">

信息2011-11-09 12:11:50868 main.py:1385]获取数据：测试信息 2011-11-09 12:11:50868 main.py:1409]出现异常post

更新9

最后，表单会填充，但不会验证。谢谢肖恩的信息，让我更进一步。现在，我没有异常地通过表单对象，但在尝试验证时会发生异常：

form = AdForm(formdata=self.request.POST)
if form.validate():
    ad.title = form.title.data

上面的代码正在记录输出：

例外是什么意思

我的班次是

我对WTForm一无所知，但我想，就像Django表单一样，在访问数据之前，需要调用验证函数。在本例中，它是

form.validate（）

：

Daniel实际上，您需要传递到表单的不是data=self.request.POST，而是formdata而不是data

希望它能对那些像我一样匆匆忙忙地浏览文档的人有用，因为我有一个非常详细的问题

+1，谢谢你不断更新这个问题！使用

self.request.params

似乎我可以让它工作。这是一个与此相关的重复问题

class GuestPage(BaseHandler):
    def get(self):
        self.response.out.write("""
          <html>
            <body>
              <form action="/sign" method="post">
                <div><textarea name="content" rows="3" cols="60"></textarea></div>
                <div><input type="submit" value="Sign Guestbook"></div>
              </form>
            </body>
          </html>""")


class Guestbook(BaseHandler, I18NHandler, blobstore_handlers.BlobstoreUploadHandler):
    csrf_protect = False

    def post(self):
        self.response.out.write('<html><body>You wrote:<pre>')
        self.response.out.write(self.request.get('content'))
        self.response.out.write('</pre></body></html>')


app = webapp2.WSGIApplication([        ('/guest', GuestPage),
                                      ('/sign', Guestbook),

class GuestPage(BaseHandler):
    def get(self):
    self.render_jinja('form_jinja')

class Guestbook(BaseHandler, I18NHandler, blobstore_handlers.BlobstoreUploadHandler):
    csrf_protect = False

    def post(self):
        self.response.out.write('<html><body>You wrote:<pre>')
        self.response.out.write(self.request.get('content'))
        self.response.out.write('</pre></body></html>')

class GuestPage(webapp2.RequestHandler):
    def get(self):

        self.response.out.write("""
          <html>
            <body>
              <form action=" """ +blobstore.create_upload_url('/sign')+ """ " method="post">
                <div><textarea name="content" rows="3" cols="60"></textarea></div>
                <div><input type="submit" value="Sign Guestbook"></div>
              </form>
            </body>
          </html>""")


class Guestbook(blobstore_handlers.BlobstoreUploadHandler):

    def post(self):
        self.response.out.write('<html><body>You wrote:<pre>')
        self.response.out.write(self.request.get('content'))
        self.response.out.write('</pre></body></html>')


app = webapp2.WSGIApplication([       ('/guest', GuestPage),
                                      ('/sign', Guestbook),

    logging.info('getting data:'+ self.request.get('title', '0'))
    logging.info('http post data:'+ str(self.request.post))
    form = AdForm(formdata=self.request.data)
    logging.info('populated form')
    logging.info('form data:' + str(form.formdata))
    if form.validate():
      if form.title:
        logging.info('getting title:'+str( form.get('title') ) )
        ad.title = form.title.data      ad.save()       ad.put()
      if form.text:
        logging.info('getting text:' +str(form.text))
        ad.text = form.text.data
      if self.request.get('currency'):
        ad.currency = self.request.get('currency')
      if self.request.get('cg'):
        ad.category = form.cg.data
      if self.request.get('company_ad') == '1':
        ad.company_ad = True
      ad.put()
    else:
      logging.info('form did not validate')
except Exception, ex:
    logging.info('there occured exception %s', str(ex))

logging.info('getting data:'+ self.request.get('title', '0'))
form = AForm(self.request.POST)
logging.info('populated form')
if form.validate():
  logging.info('validated form')

INFO     2011-11-11 08:03:59,913 main.py:1387] getting data:TEST
INFO     2011-11-11 08:03:59,914 main.py:1390] populated form
INFO     2011-11-11 08:03:59,914 main.py:1412] there occured exception 'builtin_function_or_method' object is not iterable

class AForm(Form):
    name = TextField(_('Name'))
    title = TextField(_('title'))
    text = TextAreaField(_('Text'),widget=TextArea())
    phonenumber = TextField(_('Phone number'))
    phonenumberhide = BooleanField(_('Display phone number on site'))
    price = TextField(_('Price'))
    password = PasswordField(_('Password'))
    email = TextField(_('Email'))  
    category  = SelectField(choices=categories.keys)

form = AdForm(formdata=self.request.POST)
if form.validate():
    ad.title = form.title.data