我正在构建一个应用程序，允许用户创建调查并对调查问题进行投票。现在，这些问题的答案将存储在数据存储区中，以便我可以最终分析结果。但是，我无法找到提取用户选择的单选按钮值的方法。每个问题都有三个选项，所有选项都由一个单选按钮代表。
以下是代码：
main.py
import os
import webapp2
import jinja2
from google.appengine.ext import db
from random import randint
template_dir = os.path.join(os.path.dirname(__file__), 'templates')
jinja_env = jinja2.Environment(loader = jinja2.FileSystemLoader(template_dir), autoescape=True)
class Handler(webapp2.RequestHandler):
def write(self, *a, **kw):
self.response.out.write(*a, **kw)
def render_str(self, template, **params):
t = jinja_env.get_template(template)
return t.render(params)
def render(self, template, **kw):
self.write(self.render_str(template, **kw))
#databases
class Survey(db.Model):
vam_id = db.StringProperty()
subject = db.StringProperty(required = True)
description = db.TextProperty(required = True)
created = db.DateTimeProperty(auto_now_add = True)
q1 = db.TextProperty(required = True)
o11 = db.TextProperty(required = True)
o12 = db.TextProperty(required = True)
o13 = db.TextProperty(required = True)
q2 = db.TextProperty(required = True)
o21 = db.TextProperty(required = True)
o22 = db.TextProperty(required = True)
o23 = db.TextProperty(required = True)
q3 = db.TextProperty(required = True)
o31 = db.TextProperty(required = True)
o32 = db.TextProperty(required = True)
o33 = db.TextProperty(required = True)
q4 = db.TextProperty(required = True)
o41 = db.TextProperty(required = True)
o42 = db.TextProperty(required = True)
o43 = db.TextProperty(required = True)
q5 = db.TextProperty(required = True)
o51 = db.TextProperty(required = True)
o52 = db.TextProperty(required = True)
o53 = db.TextProperty(required = True)
class Votes(db.Model):
vam_id = db.StringProperty(required = True)
q1_opt = db.TextProperty(required = True)
q2_opt = db.TextProperty(required = True)
q3_opt = db.TextProperty(required = True)
q4_opt = db.TextProperty(required = True)
q5_opt = db.TextProperty(required = True)
class MainPage(Handler):
def get(self):
self.render("homepage.html")
class NewSurvey(Handler):
def get(self):
self.render("newsurvey.html")
def post(self):
vam_id = str(randint(1, 500))
subject = self.request.get("title")
description = self.request.get("description")
q1 = self.request.get("q1")
o11 = self.request.get("o11")
o12 = self.request.get("o12")
o13 = self.request.get("o13")
q2 = self.request.get("q2")
o21 = self.request.get("o21")
o22 = self.request.get("o22")
o23 = self.request.get("o23")
q3 = self.request.get("q3")
o31 = self.request.get("o31")
o32 = self.request.get("o32")
o33 = self.request.get("o33")
q4 = self.request.get("q4")
o41 = self.request.get("o41")
o42 = self.request.get("o42")
o43 = self.request.get("o43")
q5 = self.request.get("q5")
o51 = self.request.get("o51")
o52 = self.request.get("o52")
o53 = self.request.get("o53")
a = Survey(vam_id = vam_id, subject = subject, description = description, q1 = q1,
o11 = o11, o12 = o12, o13 = o13, q2 = q2,
o21 = o21, o22 = o22, o23 = o23, q3 = q3,
o31 = o31, o32 = o32, o33 = o33, q4 = q4,
o41 = o41, o42 = o42, o43 = o43, q5 = q5,
o51 = o51, o52 = o52, o53 = o53)
a.put()
class Existing(Handler):
def get(self):
surveys = Survey.all()
self.render("existingsurvey.html", surveys = surveys)
class PermaSurvey(Handler):
def get(self):
vam = self.request.get("vam_id")
su = Survey.all().filter("vam_id =", vam).get()
self.render("perma.html", su = su)
def post(self):
vam = self.request.get("vam_id")
q1_opt = self.request.get("q1")
q2_opt = self.request.get("q2")
q3_opt = self.request.get("q3")
q4_opt = self.request.get("q4")
q5_opt = self.request.get("q5")
v = Votes(vam_id = vam, q1_opt = q1_opt, q2_opt = q2_opt, q3_opt = q3_opt,
q4_opt = q4_opt, q5_opt = q5_opt)
v.put()
app = webapp2.WSGIApplication([('/', MainPage),
('/new', NewSurvey),
('/existing', Existing),
('/perma', PermaSurvey)], debug=True)
perma.html
<html>
<head>
<title>Perma Survey</title>
</head>
<body>
<form method = "post">
{% block content %}
<h2>{{su.subject}}</h2>
<p>{{su.description}}</p>
<br>
{{su.q1}}
<br>
<input type="radio" name="q1">{{su.o11}}<br>
<input type="radio" name="q1">{{su.o12}}<br>
<input type="radio" name="q1">{{su.o13}}
<hr>
{{su.q2}}
<br>
<input type="radio" name="q2">{{su.o21}}<br>
<input type="radio" name="q2">{{su.o22}}<br>
<input type="radio" name="q2">{{su.o23}}
<hr>
{{su.q3}}
<br>
<input type="radio" name="q3">{{su.o31}}<br>
<input type="radio" name="q3">{{su.o32}}<br>
<input type="radio" name="q3">{{su.o33}}
<hr>
{{su.q4}}
<br>
<input type="radio" name="q4">{{su.o41}}<br>
<input type="radio" name="q4">{{su.o42}}<br>
<input type="radio" name="q4">{{su.o43}}
<hr>
{{su.q5}}
<br>
<input type="radio" name="q5">{{su.o51}}<br>
<input type="radio" name="q5">{{su.o52}}<br>
<input type="radio" name="q5">{{su.o53}}
<hr>
<br>
<input type = "submit">
{% endblock %}
</form>
</body>
</html>
现在，无论我从列出的三个选项中选择哪个选项，数据存储区中存储的值都是“on”，表示选中了单选按钮组中的单选按钮。如何将用户选择的实际选项存储到数据存储区中？
答案 0 :(得分：2)
您尚未为表单元素分配任何value个。我想你想要：
<input type="radio" name="q3" value="{{su.o31}}" />{{su.o31}}<br>
现在，您可以检索value。由于你已经在使用jinja，我建议你使用WTForms软件包来简化这一过程。