From: Jagadeesh <mnjagadeesh@...>
Date: 2010-01-08T12:55:13+09:00
Subject: Re: Help

On Jan 7, 3:08 pm, Jesús Gabriel y Galán <jgabrielyga...@gmail.com>
wrote:
> On Thu, Jan 7, 2010 at 10:55 AM, Jagadeesh <mnjagade...@gmail.com> wrote:
> > On Jan 7, 2:33 pm, Jesús Gabriel y Galán <jgabrielyga...@gmail.com>
> > wrote:
> >> On Thu, Jan 7, 2010 at 10:20 AM, Jagadeesh <mnjagade...@gmail.com> wrote:
> >> > hi Gurus,
>
> >> > Here my data structure
>
> >> > 1234 => { 'open' => '1234-1',
> >> >               'analyzed' => '1234-2',
> >> >               'feedback' => '1234-3',
> >> >               'closed' => '1234-4'
> >> >             }
> >> > 3455 => { 'open' => '3455-1',
> >> >               'analyzed' => '34552',
> >> >               'feedback' => '3455-3',
> >> >               'closed' => '3455-4'
> >> >             }
>
> >> > My task is to display numbers [like 1234 or 3455] if they have ('open'
> >> > OR 'analyzed') AND ('closed' OR 'feedback')  keys. I tried following
> >> > code
>
> >> > puts numbers if $DATA[pr].has_key?( ( ('closed' || 'feedback')
> >> >                                                         && ('open' ||
> >> > 'analyzed') ) )
>
> >> > I am not sure what is wrong with it but its not testing these
> >> > conditions and printing all numbers. Please help me understanding
> >> > has_key method and writing correct condition.
>
> >> The has_key? method receives a single key to be checked in the hash.
> >> In your snippet, what you are passing to the has_key? method is the
> >> result of evaluating this:
>
> >> ( ('closed' || 'feedback') && ('open' || 'analyzed') )
>
> >> which is:
>
> >> irb(main):002:0> ( ('closed' || 'feedback') && ('open' || 'analyzed') )
> >> => "open"
>
> >> So you are testing only for the "open" key. I don't know what $DATA or
> >> pr or numbers are in your snippet, but you are testing only for the
> >> key "open".
>
> >> Hope this helps,
>
> >> Jesus.
>
> > $DATA=>{'1234' => { 'open' => '1234-1',
> >               'analyzed' => '1234-2',
> >               'feedback' => '1234-3',
> >               'closed' => '1234-4'
> >             },
> >        '3455' => { 'open' => '3455-1',
> >               'analyzed' => '34552',
> >               'feedback' => '3455-3',
> >               'closed' => '3455-4'
> >              }
> > }
>
> > and am reading it in loop so pr will have 1234, 3455 etc.
>
> As Stefano said:
>
> irb(main):001:0> $DATA = {
> irb(main):002:1* 1234 => { 'open' => '1234-1',
> irb(main):003:2*               'analyzed' => '1234-2',
> irb(main):004:2*               'feedback' => '1234-3',
> irb(main):005:2*               'closed' => '1234-4'
> irb(main):006:2>             },
> irb(main):007:1* 3455 => { 'open' => '3455-1',
> irb(main):008:2*               'analyzed' => '34552',
> irb(main):009:2*               'feedback' => '3455-3',
> irb(main):010:2*               'closed' => '3455-4'
> irb(main):011:2>             }}
> => {3455=>{"open"=>"3455-1", "analyzed"=>"34552", "closed"=>"3455-4",
> "feedback"=>"3455-3"}, 1234=>{"open"=>"1234-1", "analyzed"=>"1234-2",
> "closed"=>"1234-4", "feedback"=>"1234-3"}}
> irb(main):012:0> $DATA.each do |k,v|
> irb(main):013:1* puts k if ( (v.has_key?('closed') ||
> v.has_key?('feedback')) && ((v.has_key?('open') ||
> v.has_key?('analyzed'))))
> irb(main):014:1> end
> 3455
> 1234
>
> Hope this helps,
>
> Jesus.

Thank you so much. It is working now.

Thanks for all your help.

Thanks