Alan can you explain in detail
On Tue, Feb 28, 2012 at 7:58 PM, Alan Etkin <spame...@gmail.com> wrote:
> For checking if the server is up from the client browser (without
> refreshing the page) you can use jQuery .ajax() and a simple function
> at the controller to return the server state. I have submitted a LOAD
> helper enhancement to perform a ajax loop at the client side. It could
> be used for this purpose also (by defining an iterative javascript
> routine in a .load view)
>
> The inverse case is more difficult. Your operating system should write
> a sentry file before turning off for the web2py app to check it in a
> cron task or you could examine the system environment for checking the
> status from the web2py app also.
>
> Another way would be to have an operating system script to fire on
> shut down with a web request to the web2py application. The web2py app
> should implement a listener to perform the required actions before
> system shut down.
>
> On Feb 28, 7:55 am, Sanjeet Kumar <sanjeet....@gmail.com> wrote:
> > I am going to develop the time sheet app so for that i captured the login
> > and logout event through this :-
> > auth.settings.login_onaccept = lambda form: lgin(form)
> > auth.settings.logout_onlogout = lambda usr: lgout(usr)
> >
> > and one more question in my mind when the browser will be closed by some
> > reasons and the system will be shut-down due to power loss that time how
> we
> > capture the event and will show it logout and update our database
> following
> > is my database and the controller :-
> >
> > database:-
> >
> > db.define_table('employee_login_detail',
> > Field('employee_id'),
> > Field('employee_name'),
> > Field('employee_login_date'),
> > Field('employee_login_time'),
> > Field('employee_logout_date',default='Logged in'),
> > Field('employee_logout_time',default='Logged in'),
> > Field('total_minutes',default='Logged in'))
> >
> > Controller:-
> >
> > def lgin(form):
> > import datetime
> > import time
> > currentdate=datetime.date.today()
> > now = time.localtime(time.time())
> > starttime = datetime.datetime.now()
> > session.starttime = starttime
> > currenttime = time.strftime("%H:%M:%S", now)
> > session.time = currenttime
> > for row in db(db.auth_user.email ==
> > auth.user.email).select(db.auth_user.first_name):
> > firstname=row.first_name
> > db.employee_login_detail.insert(employee_id = auth.user.email,
> > employee_name=firstname, employee_login_date=currentdate,
> > employee_login_time=currenttime)
> > return ''
> >
> > def lgout(usr):
> > import datetime
> > import time
> > currentdate=datetime.date.today()
> > now = time.localtime(time.time())
> > endtime=datetime.datetime.now()
> > starttime = session.starttime
> > delta = (endtime - starttime)
> > totalminutes = str(delta.seconds / 60)
> > currenttime = time.strftime("%H:%M:%S", now)
> > db((db.employee_login_detail.employee_id == auth.user.email) &
> > (db.employee_login_detail.employee_login_date == currentdate) &
> > (db.employee_login_detail.employee_login_time ==
> > session.time)).update(employee_logout_date=currentdate,
> > employee_logout_time=currenttime, total_minutes=totalminutes)
> > return ''
>
