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Check url address

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  Check url address "Lukáš N." <dmnc.mobile@gmail.com> - 2011-05-04 02:50 -0500
    Re: Check url address Jesús Gabriel y Galán <jgabrielygalan@gmail.com> - 2011-05-04 03:13 -0500
    Re: Check url address "Lukáš N." <dmnc.mobile@gmail.com> - 2011-05-04 04:49 -0500

#3910 — Check url address

Hello all,

i would like to do something like define two urls, primary and
secondary. After that, check them and if primary is not available,
choose secondary url. At the end, put these to some variable for next
usage.

Thanks a lot! L.

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#3911

On Wed, May 4, 2011 at 9:50 AM, Lukáš N. <dmnc.mobile@gmail.com> wrote:
> Hello all,
>
> i would like to do something like define two urls, primary and
> secondary. After that, check them and if primary is not available,
> choose secondary url. At the end, put these to some variable for next
> usage.

You can try to open the first URL and if there's any exception, use
the second one.
Something like:

ruby-1.9.1-p431 :004 > require 'open-uri'
 => true
ruby-1.9.1-p431 :005 > url1 = "http://fsdfsdfsdf.com"
 => "http://fsdfsdfsdf.com"
ruby-1.9.1-p431 :006 > url2 = "http://www.google.com"
 => "http://www.google.com"
ruby-1.9.1-p431 :007 > valid_url = begin
ruby-1.9.1-p431 :008 >     open(url1)
ruby-1.9.1-p431 :009?>     url1
ruby-1.9.1-p431 :010?>   rescue
ruby-1.9.1-p431 :011?>   url2
ruby-1.9.1-p431 :012?>   end
 => "http://www.google.com"
ruby-1.9.1-p431 :013 > valid_url
 => "http://www.google.com"

Jesus.

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#3913

Great, thank you so much :)

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