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Re: Preserving hash structure after subroutine call

by suaveant (Parson)
on May 13, 2003 at 21:08 UTC ( [id://257899]=note: print w/replies, xml ) Need Help??


in reply to Preserving hash structure after subroutine call

It may be that the reference to the fetchrow_hashref is somehow losing scope outside the subroutine. I tried by faking your data in and it worked fine.

as for sugestions, I would just do 

$href->{$ct} = $tmp_href;
#rather than 
$results{$ct} = $tmp_href;

[download]
that way you don't need to waste time and memory on a copy of the hash

                - Ant
                - Some of my best work - (1 2 3)

Replies are listed 'Best First'.
Re: Re: Preserving hash structure after subroutine call
by Anonymous Monk on May 13, 2003 at 21:31 UTC
    Yes. I had used that variant earlier without the intermediate hash but with the same results. I used the intermediate hoping that the references would resolve to actual data during the assignment: 
    %{ $href } = %results;

    [download]

    In my example I tried using Storable's dclone() which I thought replace the references with the real data, but apparently not. I agree that it has something to do with scoping, I'm just not sure how to solve it.

[reply]
[d/l]
      well... try 
      while(my $row = $sth->fetchrow_hashref() && my %row = %$row)

      [download]
      or something similar. Copy the row hash.

                      - Ant
                      - Some of my best work - (1 2 3)

[reply]
[d/l]

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