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package SL::Request;
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use strict;
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use SL::Common;
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use SL::MoreCommon qw(uri_encode uri_decode);
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use List::Util qw(first max min sum);
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use List::MoreUtils qw(all any apply);
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sub _store_value {
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$::lxdebug->enter_sub(2);
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my ($target, $key, $value) = @_;
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my @tokens = split /((?:\[\+?\])?(?:\.|$))/, $key;
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my $curr;
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if (scalar @tokens) {
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$curr = \ $target->{ shift @tokens };
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}
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while (@tokens) {
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my $sep = shift @tokens;
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my $key = shift @tokens;
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$curr = \ $$curr->[++$#$$curr], next if $sep eq '[]';
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$curr = \ $$curr->[max 0, $#$$curr] if $sep eq '[].';
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$curr = \ $$curr->[++$#$$curr] if $sep eq '[+].';
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$curr = \ $$curr->{$key}
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}
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$$curr = $value;
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$::lxdebug->leave_sub(2);
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return $curr;
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}
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sub _input_to_hash {
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$::lxdebug->enter_sub(2);
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my ($target, $input) = @_;
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my @pairs = split(/&/, $input);
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foreach (@pairs) {
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my ($key, $value) = split(/=/, $_, 2);
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_store_value($target, uri_decode($key), uri_decode($value)) if ($key);
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}
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$::lxdebug->leave_sub(2);
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}
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sub parse_multipart_formdata {
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my ($target, $input) = @_;
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my ($name, $filename, $headers_done, $content_type, $boundary_found, $need_cr, $previous);
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my $uploads = {};
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my $boundary = '--' . $1;
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foreach my $line (split m/\n/, $input) {
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last if (($line eq "${boundary}--") || ($line eq "${boundary}--\r"));
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if (($line eq $boundary) || ($line eq "$boundary\r")) {
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${ $previous } =~ s|\r?\n$|| if $previous;
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undef $previous;
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undef $filename;
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$headers_done = 0;
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$content_type = "text/plain";
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$boundary_found = 1;
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$need_cr = 0;
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next;
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}
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next unless $boundary_found;
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if (!$headers_done) {
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$line =~ s/[\r\n]*$//;
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if (!$line) {
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$headers_done = 1;
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next;
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}
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if ($line =~ m|^content-disposition\s*:.*?form-data\s*;|i) {
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if ($line =~ m|filename\s*=\s*"(.*?)"|i) {
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$filename = $1;
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substr $line, $-[0], $+[0] - $-[0], "";
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}
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if ($line =~ m|name\s*=\s*"(.*?)"|i) {
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$name = $1;
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substr $line, $-[0], $+[0] - $-[0], "";
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}
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$previous = _store_value($uploads, $name, '') if ($name);
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$target->{FILENAME} = $filename if ($filename);
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next;
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}
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if ($line =~ m|^content-type\s*:\s*(.*?)$|i) {
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$content_type = $1;
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}
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next;
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}
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next unless $previous;
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${ $previous } .= "${line}\n";
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}
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${ $previous } =~ s|\r?\n$|| if $previous;
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$::lxdebug->leave_sub(2);
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}
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sub _request_to_hash {
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$::lxdebug->enter_sub(2);
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my ($target, $input) = @_;
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my $uploads;
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if (!$ENV{'CONTENT_TYPE'}
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|| ($ENV{'CONTENT_TYPE'} !~ /multipart\/form-data\s*;\s*boundary\s*=\s*(.+)$/)) {
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$uploads = { };
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_input_to_hash($target, $input);
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} else {
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$uploads = _parse_multipart_formdata($target, $input);
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}
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$main::lxdebug->leave_sub(2);
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return $uploads;
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}
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sub _recode_recursively {
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$main::lxdebug->enter_sub();
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my ($iconv, $param) = @_;
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if (any { ref $param eq $_ } qw(Form HASH)) {
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foreach my $key (keys %{ $param }) {
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if (!ref $param->{$key}) {
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# Workaround for a bug: converting $param->{$key} directly
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# leads to 'undef'. I don't know why. Converting a copy works,
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# though.
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$param->{$key} = $iconv->convert("" . $param->{$key});
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} else {
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_recode_recursively($iconv, $param->{$key});
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}
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}
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} elsif (ref $param eq 'ARRAY') {
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foreach my $idx (0 .. scalar(@{ $param }) - 1) {
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if (!ref $param->[$idx]) {
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# Workaround for a bug: converting $param->[$idx] directly
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# leads to 'undef'. I don't know why. Converting a copy works,
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# though.
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$param->[$idx] = $iconv->convert("" . $param->[$idx]);
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} else {
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_recode_recursively($iconv, $param->[$idx]);
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}
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}
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}
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$main::lxdebug->leave_sub();
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}
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sub read_cgi_input {
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$::lxdebug->enter_sub;
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my ($target) = @_;
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_input_to_hash($target, $ENV{QUERY_STRING}) if $ENV{QUERY_STRING};
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_input_to_hash($target, $ARGV[0]) if @ARGV && $ARGV[0];
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my $uploads;
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if ($ENV{CONTENT_LENGTH}) {
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my $content;
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read STDIN, $content, $ENV{CONTENT_LENGTH};
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$uploads = _request_to_hash($target, $content);
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}
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if ($target->{RESTORE_FORM_FROM_SESSION_ID}) {
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my %temp_form;
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$::auth->restore_form_from_session(delete $target->{RESTORE_FORM_FROM_SESSION_ID}, form => \%temp_form);
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_input_to_hash($target, join '&', map { uri_encode($_) . '=' . uri_encode($temp_form{$_}) } keys %temp_form);
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}
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my $db_charset = $::lx_office_conf{system}->{dbcharset} || Common::DEFAULT_CHARSET;
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my $encoding = delete $target->{INPUT_ENCODING} || $db_charset;
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_recode_recursively(SL::Iconv->new($encoding, $db_charset), $target);
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map { $target->{$_} = $uploads->{$_} } keys %{ $uploads } if $uploads;
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$::lxdebug->leave_sub;
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return $target;
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}
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1;
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__END__
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=head1 NAME
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SL::Form.pm - main data object.
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=head1 SYNOPSIS
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This module handles unpacking of cgi parameters. usually you donÄt want to call
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anything in here directly,
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SL::Request::read_cgi_input($target_hash_ref);
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=head1 SPECIAL FUNCTIONS
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=head2 C<_store_value()>
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parses a complex var name, and stores it in the form.
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syntax:
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$form->_store_value($key, $value);
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keys must start with a string, and can contain various tokens.
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supported key structures are:
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1. simple access
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simple key strings work as expected
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id => $form->{id}
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2. hash access.
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separating two keys by a dot (.) will result in a hash lookup for the inner value
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this is similar to the behaviour of java and templating mechanisms.
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filter.description => $form->{filter}->{description}
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3. array+hashref access
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adding brackets ([]) before the dot will cause the next hash to be put into an array.
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using [+] instead of [] will force a new array index. this is useful for recurring
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data structures like part lists. put a [+] into the first varname, and use [] on the
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following ones.
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repeating these names in your template:
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invoice.items[+].id
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invoice.items[].parts_id
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will result in:
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$form->{invoice}->{items}->[
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{
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id => ...
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parts_id => ...
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},
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{
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id => ...
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parts_id => ...
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}
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...
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]
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4. arrays
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using brackets at the end of a name will result in a pure array to be created.
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note that you mustn't use [+], which is reserved for array+hash access and will
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result in undefined behaviour in array context.
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filter.status[] => $form->{status}->[ val1, val2, ... ]
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=cut
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