error Eigenschaft% s ist nicht mehrzeilig

Question

Dec 06, 2012, 11:02 PM

error Eigenschaft% s ist nicht mehrzeilig

Meine App erhält einen Fehler wegen der%s (zumindest denke ich das), aber ich weiß nicht warum. Ich habe zu Django-Code geändert, um zu versuchen, Daten in die HTML-Vorlage zu bekommen. Die Vorlage wird geladen, aber die Daten werden nicht importiert. Die App wird lokal ausgeführt, aber die Vorlage lädt keine Daten und auf dem Server erhalte ich den folgenden Fehler:

Traceback (most recent call last):
  File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.1/webapp2.py", line 1536, in __call__
    rv = self.handle_exception(request, response, e)
  File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.1/webapp2.py", line 1530, in __call__
    rv = self.router.dispatch(request, response)
  File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.1/webapp2.py", line 1278, in default_dispatcher
    return route.handler_adapter(request, response)
  File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.1/webapp2.py", line 1102, in __call__
    return handler.dispatch()
  File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.1/webapp2.py", line 572, in dispatch
    return self.handle_exception(e, self.app.debug)
  File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.5.1/webapp2.py", line 570, in dispatch
    return method(*args, **kwargs)
  File "/base/data/home/apps/s~ceemee11111/1.363684484611202021/helloworld.py", line 37, in get
    for greeting in greetings:
  File "/base/python27_runtime/python27_lib/versions/1/google/appengine/ext/db/__init__.py", line 2314, in next
    return self.__model_class.from_entity(self.__iterator.next())
  File "/base/python27_runtime/python27_lib/versions/1/google/appengine/ext/db/__init__.py", line 1442, in from_entity
    return cls(None, _from_entity=entity, **entity_values)
  File "/base/python27_runtime/python27_lib/versions/1/google/appengine/ext/db/__init__.py", line 974, in __init__
    prop.__set__(self, value)
  File "/base/python27_runtime/python27_lib/versions/1/google/appengine/ext/db/__init__.py", line 614, in __set__
    value = self.validate(value)
  File "/base/python27_runtime/python27_lib/versions/1/google/appengine/ext/db/__init__.py", line 2823, in validate
    raise BadValueError('Property %s is not multi-line' % self.name)
BadValueError: Property content is not multi-line

helloworld.py:

import cgi
import datetime
import urllib
import webapp2
import os

from google.appengine.ext import db
from google.appengine.api import users
from google.appengine.ext.webapp import template



class Greeting(db.Model):
  """Models an individual Guestbook entry with an author, content, and date."""
  author = db.StringProperty()
  content = db.StringProperty(multiline=False)
  content2 = db.StringProperty(multiline=False)
  date = db.DateTimeProperty(auto_now_add=True)


def guestbook_key(guestbook_name=None):
  """Constructs a Datastore key for a Guestbook entity with guestbook_name."""
  return db.Key.from_path('Guestbook', guestbook_name or 'default_guestbook')


class MainPage(webapp2.RequestHandler):
  def get(self):
    self.response.out.write('<html><body>')
    guestbook_name=self.request.get('guestbook_name')

    greetings = db.GqlQuery("SELECT * "
                        "FROM Greeting "
                        "WHERE ANCESTOR IS :1 "
                        "ORDER BY date DESC LIMIT 10",
                        guestbook_key(guestbook_name))

    for greeting in greetings:
      if greeting.author:
        self.response.out.write(
            '<b>%s</b> wrote:' % greeting.author)
      else:
        self.response.out.write('An anonymous person wrote:')

      self.response.out.write(template.render('myhtml.html', {'guestbook_name': guestbook_name}))

class Guestbook(webapp2.RequestHandler):
  def post(self):
    guestbook_name = self.request.get('guestbook_name')
    greeting = Greeting(parent=guestbook_key(guestbook_name))

    if users.get_current_user():
      greeting.author = users.get_current_user().nickname()

    greeting.content = self.request.get('content')
    greeting.put()
    self.redirect('/?' + urllib.urlencode({'guestbook_name': guestbook_name}))


app = webapp2.WSGIApplication([('/', MainPage),
                           ('/sign', Guestbook)],
                          debug=True)

myhtml.html:

<!DOCTYPE html>
  <html>
    <body>
      <form action="/sign?{{ guestbook_name }}" method="post">
       <div id="dataImput">
        <div><div><input type="text" name="content"</div>
        <div><div><input type="text" name="content2"</div>
      </div> 
      <script>
        document.write("<h1>This is heading</h1>");

      </script>
        <div><input type="submit" value="Sign Guestbook"></div>
      </form>
      <form>Guestbook name: <input value="{{ guestbook_name|escape }}" name="guestbook_name">
  <input type="submit" value="switch"></form>
  <hr>
</body>