登錄Web.py待辦事項列表

Question

我嘗試將登錄功能添加到web.pytodo example。

這是我的代碼：

""" Basic todo list using webpy 0.3 """ 
import web 
import model 

### Url mappings 

urls = (
    '/', 'Index', 
    '/login', 'Login', 
    '/logout', 'Logout', 
    '/del/(\d+)', 'Delete', 
) 


### Templates 
render = web.template.render('templates', base='base') 
app = web.application(urls, locals()) 
session = web.session.Session(app, web.session.DiskStore('sessions')) 

allowed = (
    ('user','pass'), 
    ('tom','pass2') 
) 

class Login: 

    login_form = web.form.Form(web.form.Textbox('username'), 
     web.form.Password('password'), 
     web.form.Button('Login'), 
     ) 

    def GET(self): 
     f = self.login_form() 
     return render.login(f) 

    def POST(self): 
     # Validation 
     if not self.login_form.validates(): 
      print "it didn't validate!" 

     session.logged_in = True 
     raise web.seeother('/') 


class Logout: 
    def GET(self): 
     session.logged_in = False 
     raise web.seeother('/') 

class Index: 

    form = web.form.Form(
     web.form.Textbox('title', web.form.notnull, 
      description="I need to:"), 
     web.form.Button('Add todo'), 
    ) 

    def GET(self): 
     print "logged_in " + str(session.get('logged_in', False)) 
     if session.get('logged_in', False): 
      """ Show page """ 
      todos = model.get_todos() 
      form = self.form() 
      return render.index(todos, form) 
     else: 
      raise web.seeother('/login') 

    def POST(self): 
     """ Add new entry """ 
     form = self.form() 
     if not form.validates(): 
      todos = model.get_todos() 
      return render.index(todos, form) 
     model.new_todo(form.d.title) 
     raise web.seeother('/') 



class Delete: 

    def POST(self, id): 
     """ Delete based on ID """ 
     id = int(id) 
     model.del_todo(id) 
     raise web.seeother('/') 


app = web.application(urls, globals()) 

if __name__ == '__main__': 
    app.run() 

當用戶執行POST在/login，logged_in總是False。

任何想法爲什麼？

Answer 1

我剛修好它。我錯過了一些會話初始化代碼。 以下是工作代碼：

""" Basic todo list using webpy 0.3 """ 
import web 
import model 

### Url mappings 

urls = (
    '/', 'Index', 
    '/login', 'Login', 
    '/logout', 'Logout', 
    '/del/(\d+)', 'Delete', 
) 


web.config.debug = False 
render = web.template.render('templates', base='base') 
app = web.application(urls, locals()) 
session = web.session.Session(app, web.session.DiskStore('sessions')) 

allowed = (
    ('user','pass'), 
) 

class Login: 

    login_form = web.form.Form(web.form.Textbox('username', web.form.notnull), 
     web.form.Password('password', web.form.notnull), 
     web.form.Button('Login'), 
     ) 

    def GET(self): 
     f = self.login_form() 
     return render.login(f) 

    def POST(self): 
     if not self.login_form.validates(): 
      return render.login(self.login_form) 

     username = self.login_form['username'].value 
     password = self.login_form['password'].value 
     if (username,password) in allowed: 
      session.logged_in = True 
      raise web.seeother('/') 

     return render.login(self.login_form) 


class Logout: 
    def GET(self): 
     session.logged_in = False 
     raise web.seeother('/') 

class Index: 

    form = web.form.Form(
     web.form.Textbox('title', web.form.notnull, 
      description="I need to:"), 
     web.form.Button('Add todo'), 
    ) 

    def GET(self): 
     if session.get('logged_in', False): 
      """ Show page """ 
      todos = model.get_todos() 
      form = self.form() 
      return render.index(todos, form) 
     else: 
      raise web.seeother('/login') 

    def POST(self): 
     """ Add new entry """ 
     form = self.form() 
     if not form.validates(): 
      todos = model.get_todos() 
      return render.index(todos, form) 
     model.new_todo(form.d.title) 
     raise web.seeother('/') 



class Delete: 

    def POST(self, id): 
     """ Delete based on ID """ 
     id = int(id) 
     model.del_todo(id) 
     raise web.seeother('/') 


app = web.application(urls, globals()) 

if web.config.get('_session') is None: 
    session = web.session.Session(app, web.session.DiskStore('sessions'), {'count': 0}) 
    web.config._session = session 
else: 
    session = web.config._session 

if __name__ == '__main__': 
    app.run()