我正在制作一个包含注册页面和登录页面的基本网页。我正在使用谷歌应用程序引擎,python和HTML。这是我的用户功能:
class Register(Signup):
def done(self):
#make sure the user doesn't already exist
u = User.by_name(self.username)
if u:
msg = 'That user already exists.'
self.render('signup-form.html', error_username = msg)
else:
u = User.register(self.username, self.password, self.email)
u.put()
self.login(u)
self.redirect('/blog')
当我注册新用户时,我将它们放在数据库中。它们存储在数据库中:
class Login(BlogHandler):
def get(self):
self.render('login-form.html')
def post(self):
username = self.request.get('username')
password = self.request.get('password')
u = User.login(username, password)
if u:
self.login()
self.redirect('/blog')
else:
msg = 'Invalid login'
self.render('login-form.html', error = msg)
但是当我使用登录功能时,我无法从数据库中检索用户以使用登录功能。它每次都说“登录无效”:
class Signup(BlogHandler):
def get(self):
self.render("signup-form.html")
def post(self):
have_error = False
self.username = self.request.get('username')
self.password = self.request.get('password')
self.verify = self.request.get('verify')
self.email = self.request.get('email')
params = dict(username = self.username,
email = self.email)
if not valid_username(self.username):
params['error_username'] = "That's not a valid username."
have_error = True
if not valid_password(self.password):
params['error_password'] = "That wasn't a valid password."
have_error = True
elif self.password != self.verify:
params['error_verify'] = "Your passwords didn't match."
have_error = True
if not valid_email(self.email):
params['error_email'] = "That's not a valid email."
have_error = True
if have_error:
self.render('signup-form.html', **params)
else:
self.done()
def done(self, *a, **kw):
raise NotImplementedError
当我注册时,它应该认识到用户已经在数据库中。但是,我每次都可以使用相同的凭据进行注册。这是我的注册处理程序:
class BlogHandler(webapp2.RequestHandler):
def write(self, *a, **kw):
self.response.out.write(*a, **kw)
def render_str(self, template, **params):
params['user'] = self.user
return render_str(template, **params)
def render(self, template, **kw):
self.write(self.render_str(template, **kw))
def set_secure_cookie(self, name, val):
cookie_val = make_secure_val(val)
self.response.headers.add_header(
'Set-Cookie',
'%s=%s; Path=/' % (name, cookie_val))
def read_secure_cookie(self, name):
cookie_val = self.request.cookies.get(name)
return cookie_val and check_secure_val(cookie_val)
def login(self, user):
self.set_secure_cookie('user_id', str(user.key().id()))
def logout(self):
self.response.headers.add_header('Set-Cookie', 'user_id=; Path=/')
def initialize(self, *a, **kw):
webapp2.RequestHandler.initialize(self, *a, **kw)
uid = self.read_secure_cookie('user_id')
self.user = uid and User.by_id(int(uid))
这是bloghandler函数,它是所有其他函数的基线:
<html>
<form method='GET' action='your action here'>
/*
* all other html here
*/
<input type='submit' value='Submit' id='btnSubmit' name='btnSubmit'>
</form>
</html>
$submitButton = $crawler->selectButton('btnSubmit');
以下是GITHUB的链接:
https://github.com/keldavis/registration
以下是该网站的链接:
registration-148718.appspot.com
如何让我的注册页面识别已创建的用户?如何让我的登录页面从数据库中检索我的用户并执行有效的登录?
答案 0 :(得分:0)
你的行
u = cls.all().filter('name=', name).get()
应该是
u = cls.all().filter('name =', name).get()
或
u = cls.all().filter('name', name).get()
per Google docs(请注意缺少的空格字符/ =
字符是可选的):
property_operator :由属性名称和可选比较组成的字符串 operator(=,!=,&lt;,&lt; =,&gt;,&gt; =,IN),用空格分隔:例如, '年龄&gt;'。如果仅指定属性名称而未进行比较 运算符,默认情况下过滤器比较等于(=)。
(另请注意,您应该使用google.appengine.ext.ndb
而不是google.appengine.ext.db
,而且真的不应该在真实应用中自行实施身份验证/授权/散列/等等)