http://www.perlmonks.org?node_id=1084206


in reply to Re^3: Perl XML::Smart Out of memory! error
in thread Perl XML::Smart Out of memory! error

Hi many thanks for the code. i ran it on the full file and it showed up an error while processing. Can't call method "att" on an undefined value at import_icecat.pl line 107. line 107 is 
 
$f[3] = $elt->first_child('Description[@langid="1"]')->att('Value');

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looking at the xml i find that there is block with missing attributes.It has the opening and closing Category tag but not discription.How do i get it to ignore where tags are missing and keep processing 
 
  <Category ID="1" LowPic="" Score="0" Searchable="0" ThumbPic="" UNCA
+TID="" Visible="0">
        <Name ID="0" Value="" langid="1"/>
       <ParentCategory ID="1"/>
      </Category>

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Re^5: Perl XML::Smart Out of memory! error
by poj (Abbot) on Apr 29, 2014 at 07:55 UTC

    Try

    sub Category{
  my ($t, $elt) = @_;
  my @f = ( $elt->att('ID') ,'','','','','' );
  $f[4] = $elt->att('LowPic');
  $f[5] = $elt->att('ThumbPic');
  $f[1] = $elt->first_child('ParentCategory')->att('ID');
  
  for my $e ($elt->children('@langid="1"')){
    $f[2] = $e->att('Value') if $e->name eq 'Name';
    $f[3] = $e->att('Value') if $e->name eq 'Description';
  }
  
  print "@f\n";
  $sth->execute(@f);
}

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    poj
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[d/l]
Re^5: Perl XML::Smart Out of memory! error
by Anonymous Monk on Apr 28, 2014 at 22:59 UTC
    block eval, like  $f[3] = eval { $elt->first_child('Description[@langid="1"]')->att('Value'); }; so if there is no first_child ... and no att value ... the program keeps going
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[d/l]

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