Hi Monks!

I have to check if this value XXy in the hashref is true in the array, if it is
get the value of "expdate" and use it to update the hashref YYK "expdate" with it. Do a need a second loop, is that why $newdate has no value?

I am trying to get this at the end.

 {
   'code' => 'YYK',
   'expdate' => '2017-01-01', # <<< noticed that this value was found 
+in the hashref XXY
   'date' => '2014-02-20',
   'product' => 'buc',
   'city' => 'MARS'
 }

[download]

My test case: 
#!/usr/bin/perl

use strict;
use warnings;

use Data::Dumper;

 my $data = [
 {
   'code' => 'XXY',
   'expdate' => '2017-01-01',
   'date' => '2017-01-30',
   'product' => 'cell',
   'city' => 'NYK'
 },
 {
   'code' => 'YYK',
   'expdate' => '2015-05-05',
   'date' => '2014-02-20',
   'product' => 'buc',
   'city' => 'MARS'
 },
 {
   'code' => 'RX Issued',
   'expdate' => '2019-11-09',
   'date' => '2011-03-11',
   'product' => 'idx',
   'city' => 'BXO'
 },
];


my $results = process( $data );

print "\n\n";
print Dumper $results;
print "\n\n";
   
sub process {

  my $all = shift || return;
  
  my $setdate;
  my $newdate;

  foreach my $all_item (reverse @{ $all }) {

    # If XXY is found use the value in the "expdate" to replace the "e
+xpdate" value in YYK
    
    # First check if XXY is true and store it
    if ( $all_item->{ code } eq 'XXY' ) {

      $newdate = $all_item->{expdate};
      
    } 

    if( $all_item->{ code } eq 'YYK') {

      # Now, set the new date
      $all_item->{expdate} = $newdate if $newdate;
      
      $setdate = $all_item;
      
    }

  }

  return $setdate;
  
}

[download]

Thanks for looking!

In reply to Replace a value with another value from the same array by Anonymous Monk

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