Forum: Ruby on Rails Need Help!

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Junior J. (Guest)
on 2009-04-07 06:31

i'm new at ruby on rails..
first i have a table with a column named status(this column use to store
a status of an access point ("online" or "offline") after my application
have done pinging the access point)

i use a net-ping library..

how can i update the data in column status "automatically".

can somebody explain this code?

      @nodestat = do |node|{
          :Status => "Online" : "Offline"}

and why the status always "Online"

Any ideas would be very gratefully received!

Thank You.
glennswest (Guest)
on 2009-04-07 11:47
(Received via mailing list)
Few things come to mind here.
I've done this exact app before.
I keep my devices in a table. The Rails app just displays the
from the table. A background daemon does the actual monitoring.
I get alot more details in my version, including mapping what mac/ip
address are on
which switch port, and using SNMP to the switch to do discovery of

The moral of this is break you ping into a separate process/task. Then
poll yours AP's
and update there status with ActiveRecord.

If you need some help, I can certainly give you some pointers.

glennswest at yahoo dot com dot sg

On Apr 7, 10:31 am, Junior Junior wangsa <rails-mailing-l...@andreas-
Frederick C. (Guest)
on 2009-04-07 11:53
(Received via mailing list)
On Apr 7, 3:31 am, Junior Junior wangsa <rails-mailing-l...@andreas-> wrote:

> can somebody explain this code?
>       @nodestat = do |node|{
>           :Status => "Online" : "Offline"}
>       end

A brief overview of the docs (and general convention) suggests that doesn't do a ping, it just creates a pinger object -
all you are testing is whether that new object was nil or not.

glennswest (Guest)
on 2009-04-07 12:08
(Received via mailing list)
I've added a blog article of my network scanner.
If you need further help let me know.

On Apr 7, 10:31 am, Junior Junior wangsa <rails-mailing-l...@andreas-
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