unable to get values from a login page in web.py python
101 views
Skip to first unread message
shiva krishna
Oct 9, 2012, 10:31:20 AM10/9/12
to we...@googlegroups.com
I am using python web.py framework to create a small web application which has just
1. Login screen (Authentication)
2. Screen with list of records(After succesfull login)
Presently i am trying to create a login screen authentication
I have created an `index.py` file with code as below
**index.py**
import os
import sys
import web
from web import form
from web.contrib.auth import DBAuth
render = web.template.render('templates/')
urls = (
'/', 'Login',
)
app = web.application(urls, globals())
db = web.database(dbn='mysql', db='Python_Web', user='root', pw='redhat')
class Login:
login_form = form.Form(
form.Textbox('username', form.notnull),
form.Password('password', form.notnull),
form.Button('Login'),
)
def GET(self):
form = self.login_form()
return render.login(form)
def POST(self):
# if not self.login_form.validates():
# return render.login(self.login_form)
post = self.login_form()
username = post['username'].value
print username,">>>>>>>>>>>>>>>>>>>>>>username"
password = post['password'].value
ident = db.select('user', where='user_login=$username', vars=locals())
if __name__ == "__main__":
web.internalerror = web.debugerror
app.run()
My **login.html** code
$def with (form)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Log in</title>
</head>
<body>
<div id="container">
<h1>Log in Details</h1>
<form action="" method="post" accept-charset="utf-8">
<p><label for="username">Username:
<input type="text" name="username" id="username" maxlength="254" tabindex="1" />
</label></p>
<p><label for="password">Password:
<input type="password" name="password" id="password" maxlength="254" tabindex="2" />
</label></p>
<p><label for="Login"></label><button id="Login" name="Login">Login</button></p>
</form>
</div>
</body>
When i run the above file with url `www.localhost:9080` in browser i can see the screen with fields `username, password and login` button , but when i enter username and password and clicked `login` button and tried to print the username i cannot fetch any data from the browser and the result showing is as below
None >>>>>>>>>>>>>>>>>>>>>>username
0.0 (1): SELECT * FROM user WHERE user_login=NULL
Can anyone let me why i am unable fetch the details entered through browser ?, am i missing anything in the above code and finally all my intention is
to create a `login` page and `validate` the user details by checking in the database
and `redirect` to the next page if user exits
I request to please help me out in writing the code for fetching the details from the browser and checking in the database and redirecting to another html page if user exists. I am really stuck and breaking my heads to complete this process
Anand Chitipothu
Oct 9, 2012, 11:15:06 AM10/9/12
to we...@googlegroups.com
values from input data.
Typical use is:
form = self.login_form()
# render the form again if there are errors
if not form.validates():
return form.render()
# do something with the form here
Anand
Reply all
Reply to author
Forward
0 new messages