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############################################## |
## --------------------------------------------------------------------------- |
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# |
## $Id$ |
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# $Id$ |
## --------------------------------------------------------------------------- |
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# |
## $Log$ |
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# $Log$ |
## Revision 1.15 2003/02/27 14:39:48 jonen |
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# Revision 1.1 2002/11/29 04:49:20 joko |
## + fixed bug at _hash2object() |
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# + initial check-in |
## |
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# |
## Revision 1.14 2003/02/22 17:13:55 jonen |
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# Revision 1.1 2002/10/10 03:26:00 cvsjoko |
## + added function 'childObject2string()' to encode 'child'-references to option related string |
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# + new |
## + use new option at 'expand()' for replacing 'childObject2string' |
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# |
## |
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############################################## |
## Revision 1.13 2003/02/21 01:48:50 joko |
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## renamed core function |
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## |
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## Revision 1.12 2003/02/20 22:45:19 joko |
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## fix regarding new deep_copy |
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## |
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## Revision 1.11 2003/02/20 21:13:54 joko |
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## - removed implementation of deep_copy2 - get this from the Pitonyak namespace (now cloned to repository) |
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## |
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## Revision 1.10 2003/02/20 20:48:00 joko |
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## - refactored lots of code to Data::Code::Ref |
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## + alternative 'deep_copy' implementation |
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## |
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## Revision 1.9 2003/02/18 19:35:56 joko |
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## +- modified 'sub refexpr2perlref': now can get the $delimiter passed, too |
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## |
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## Revision 1.8 2003/02/09 05:10:56 joko |
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## + minor update |
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## |
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## Revision 1.7 2003/01/19 03:26:59 joko |
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## + added 'sub deep_copy' - refactored from libp |
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## + add 'sub merge' - exported from CPAN's 'Hash::Merge' |
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## |
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## Revision 1.6 2002/12/23 11:27:53 jonen |
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## + changed behavior WATCH! |
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## |
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## Revision 1.5 2002/12/16 19:57:54 joko |
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## + option 'init' |
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## |
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## Revision 1.4 2002/12/05 13:56:49 joko |
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## - var_deref |
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## + expand - more sophisticated dereferencing with callbacks using Iterate |
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## |
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## Revision 1.3 2002/12/03 05:34:55 joko |
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## + bugfix: now utilizing var_utf2iso from Data::Transform::Encode |
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## |
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## Revision 1.2 2002/12/01 04:44:07 joko |
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## + code from Data::Transform::OO |
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## |
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## Revision 1.1 2002/11/29 04:49:20 joko |
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## + initial check-in |
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## |
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## Revision 1.1 2002/10/10 03:26:00 cvsjoko |
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## + new |
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## --------------------------------------------------------------------------- |
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package Data::Transform::Deep; |
package Data::Transform::Deep; |
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|
|
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require Exporter; |
require Exporter; |
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our @ISA = qw( Exporter ); |
our @ISA = qw( Exporter ); |
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our @EXPORT_OK = qw( |
our @EXPORT_OK = qw( |
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&var_NumericalHashToArray |
&expand |
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&var_deref |
&deep_copy |
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&var_mixin |
&merge_to |
|
&getStructSlotByStringyAddress |
|
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); |
); |
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|
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|
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use attributes; |
use attributes; |
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|
use Data::Dumper; |
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|
use Iterate; |
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|
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use Pitonyak::DeepCopy; |
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use Data::Transform::Encode qw( latin_to_utf8 latin_to_utf8_scalar utf8_to_latin utf8_to_latin_scalar ); |
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use Data::Code::Ref qw( ref_slot ); |
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|
|
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sub var_NumericalHashToArray { |
sub numhash2list { |
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my $vref = shift; |
my $vref = shift; |
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#my $context = shift; |
#my $context = shift; |
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if (ref $vref eq 'HASH') { |
if (ref $vref eq 'HASH') { |
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} |
} |
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$vref->{$_} = \@arr; |
$vref->{$_} = \@arr; |
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} |
} |
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var_NumericalHashToArray($vref->{$_}); |
numhash2list($vref->{$_}); |
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} |
} |
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# } else { |
# } else { |
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# #$vref->{$_} = scalar2iso($vref->{$_}); |
# #$vref->{$_} = scalar2iso($vref->{$_}); |
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} |
} |
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|
|
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|
|
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sub var_deref { |
# FIXME: could this be refactored using expand? |
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|
# btw: "expand": look at scripts@CPAN (System Administration): |
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|
# there is a perl make with perl |
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|
sub _var_deref_test { |
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my $obj = shift; |
my $obj = shift; |
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|
my $options = shift; |
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my $result; |
my $result; |
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if ((ref $obj) eq 'ARRAY') { |
if ((ref $obj) eq 'ARRAY') { |
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foreach (@{$obj}) { |
foreach (@{$obj}) { |
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my $ref = ref $_; |
my $ref = ref $_; |
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if ($ref) { |
if ($ref) { |
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push(@{$result}, var_deref($_)); |
push(@{$result}, var_deref($_, $options)); |
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|
#undef $_; |
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} else { |
} else { |
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push(@{$result}, $_); |
#push(@{$result}, $_); |
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|
push(@{$result}, deep_copy($_)); |
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} |
} |
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|
#undef $_ if $options->{destroy}; |
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|
#$options->{destroy}->($_) if $options->{destroy}; |
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} |
} |
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|
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
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} else { |
} else { |
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foreach (keys %{$obj}) { |
foreach (keys %{$obj}) { |
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my $key = $_; |
my $key = $_; |
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my $ref = ref $obj->{$_}; |
my $ref = ref $obj->{$_}; |
| 132 |
if ($ref) { |
if ($ref) { |
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$result->{$_} = var_deref($obj->{$_}); |
$result->{$_} = var_deref($obj->{$_}, $options); |
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|
#undef $obj->{$_}; |
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} else { |
} else { |
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$result->{$_} = $obj->{$_}; |
#$result->{$_} = $obj->{$_}; |
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|
$result->{$_} = deep_copy($obj->{$_}); |
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} |
} |
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|
#undef $obj->{$_} if $options->{destroy}; |
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|
#$options->{destroy}->($obj->{$_}) if $options->{destroy}; |
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} |
} |
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} |
} |
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|
#undef $obj if $options->{destroy}; |
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|
$options->{cb_destroy}->($obj) if $options->{cb_destroy}; |
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return $result; |
return $result; |
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} |
} |
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|
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|
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# convert values in hash to utf8 (and back) to be ready for (e.g.) encapsulation in XML |
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|
# but still using the known latin locale stuff |
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|
sub expand { |
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|
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my $obj = shift; |
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my $options = shift; |
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my $result; |
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|
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#print "ref: ", ref $obj, "\n"; |
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|
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if (ref $obj eq 'ARRAY') { |
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|
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IterArray @$obj, sub { |
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my $item; |
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# if current item is a reference ... |
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if (ref $_[0]) { |
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$item = $_[0]; |
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# if $options->{childObj2string} is TRUE or STRING don't expand referenced object, |
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# instead replace it by per option choosed string (default: o_<classname>_<ref type>_<guid> ) |
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if ($item && $options->{childObj2string}) { |
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$item = childObj2string($item, $options->{childObj2string}); |
| 170 |
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} else { |
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# ... expand structure recursively |
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$item = expand($_[0], $options); |
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} |
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# destroy item via seperate callback method (a POST) if requested |
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#$options->{cb}->{destroy}->($_[0]) if $options->{destroy}; |
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|
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|
# ... assume plain scalar |
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} else { |
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#$item = deep_copy($_[0]); |
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$item = $_[0]; |
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|
# conversions/encodings |
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|
$item = latin_to_utf8_scalar($item) if ($item && $options->{utf8}); |
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$item = utf8_to_latin_scalar($item) if ($item && $options->{to_latin}); |
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|
} |
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|
#push(@{$result}, $item) if $item; # use item only if not undef (TODO: make configurable via $options) |
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push(@{$result}, $item); # use item in any case |
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|
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} |
| 189 |
|
|
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} elsif (ref $obj eq 'CODE') { |
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#print Dumper($obj); |
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#exit; |
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|
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|
# TODO: "} elsif (ref $obj eq 'HASH') { [...] } else { croak 'could not deref blah'; }" ??? |
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} elsif (ref $obj) { |
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|
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IterHash %$obj, sub { |
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my $item; |
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|
|
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# if current item is a reference ... |
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if (ref $_[1]) { |
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$item = $_[1]; |
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# if $options->{childObj2string} is TRUE or STRING don't expand referenced object, |
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|
# instead replace it by per option choosed string (default: o_<classname>_<ref type>_<guid> ) |
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|
if ($item && $options->{childObj2string} && !(ref $_[1] eq "ARRAY") && !(ref $_[1] eq "HASH")) { |
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$item = childObj2string($item, $options->{childObj2string}); |
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} else { |
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# ... expand structure recursively |
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$item = expand($_[1], $options); |
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} |
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# destroy item via seperate callback method (a POST) if requested |
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#$options->{cb}->{destroy}->($_[1]) if $options->{destroy}; |
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|
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|
# ... assume plain scalar |
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} else { |
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#$item = deep_copy($_[1]); |
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$item = $_[1]; |
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# conversions/encodings |
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$item = latin_to_utf8_scalar($item) if ($item && $options->{utf8}); |
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$item = utf8_to_latin_scalar($item) if ($item && $options->{to_latin}); |
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} |
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#$result->{$_[0]} = $item if $item; # use item only if not undef (TODO: make configurable via $options) |
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$result->{$_[0]} = $item; # use item in any case |
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} |
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|
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} else { |
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#die ("not a reference!"); |
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$result = $obj; |
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|
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} |
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|
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# convert all values to utf8 (inside complex struct) |
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# now done in core-item-callbacks via Greg London's "Iterate" from CPAN |
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# latin_to_utf8($result) if ($options->{utf8}); |
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|
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# destroy persistent object from memory to be sure to get a fresh one next time |
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#undef $obj if $options->{destroy}; |
| 238 |
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#$options->{cb_destroy}->($obj) if $options->{cb_destroy}; |
| 239 |
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#$options->{cb}->{destroy}->($obj) if $options->{destroy}; |
| 240 |
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|
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return $result; |
| 242 |
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} |
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|
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|
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|
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my @indexstack; |
my @indexstack; |
| 247 |
sub var_traverse_mixin_update { |
sub _var_traverse_mixin_update_old { |
| 248 |
my $obj = shift; |
my $obj = shift; |
| 249 |
my $data = shift; |
my $data = shift; |
| 250 |
my $bool_recursion = shift; |
my $bool_recursion = shift; |
| 288 |
#return $result; |
#return $result; |
| 289 |
} |
} |
| 290 |
|
|
| 291 |
sub getStructSlotByStringyAddress { |
sub merge_to { |
| 292 |
my $var = shift; |
_hash2object(@_); |
| 293 |
my $indexstack_ref = shift; |
# TODO: |
| 294 |
my @indexstack = @{$indexstack_ref}; |
# re-implement using CPAN's "Iterate". |
| 295 |
my $joiner = '->'; |
} |
| 296 |
my @evlist; |
|
| 297 |
foreach (@indexstack) { |
|
| 298 |
my $elem; |
# todo: maybe do diff(s) here sometimes!? |
| 299 |
if ($_ =~ m/\d+/) { $elem = "[$_]"; } |
sub _hash2object { |
| 300 |
if ($_ =~ m/\D+/) { $elem = "{$_}"; } |
my $object = shift; |
| 301 |
push @evlist, $elem; |
my $data = shift; |
| 302 |
} |
my $options = shift; |
| 303 |
my $evstring = join($joiner, @evlist); |
|
| 304 |
$evstring = 'return $var->' . $evstring . ';'; |
#print "hash2object", "\n"; |
| 305 |
#print "ev: $evstring\n"; |
|
| 306 |
return eval($evstring); |
# "patch" needed 'cause php passes numerical-indexed-arrays as hash-tables, |
| 307 |
|
# this method corrects this |
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numhash2list($data) if ($options->{php}); |
| 309 |
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|
| 310 |
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# utf8-conversion/-encoding (essential for I18N) |
| 311 |
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utf8_to_latin($data) if ($options->{utf8}); |
| 312 |
|
|
| 313 |
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# get fresh object from database |
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|
# todo: |
| 315 |
|
# - handle "locked" objects !!! |
| 316 |
|
# - check if already another update occoured (object-revisioning needed!) |
| 317 |
|
#my $obj = $self->getObject($oid); |
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|
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# mix changes into fresh object and save it back |
| 320 |
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_hash2object_traverse_mixin($object, $data, 0, $options); |
| 321 |
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|
| 322 |
|
# done in core mixin function? |
| 323 |
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#$self->{storage}->update($obj); |
| 324 |
|
|
| 325 |
|
# we should "undef" some objects here to destroy them in memory and enforce reloading when used next time |
| 326 |
|
# simulate: |
| 327 |
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#$self->{storage}->disconnect(); |
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|
| 329 |
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} |
| 330 |
|
|
| 331 |
|
# ------------------------------------ |
| 332 |
|
# core mixin function |
| 333 |
|
# TODO-FEATURE: make this possible in a reverse way: object is empty (no fields) and gets filled up by mixin-data |
| 334 |
|
|
| 335 |
|
# remember keys of structures we are traversing |
| 336 |
|
# this is a HACK: |
| 337 |
|
# - don't (!!!) "packageglobal" @indexstack |
| 338 |
|
# - it will lead to problems with parallelism! |
| 339 |
|
|
| 340 |
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#my @indexstack; |
| 341 |
|
|
| 342 |
|
# traverse a deeply nested structure, mix in values from given hash, update underlying tangram-object |
| 343 |
|
sub _hash2object_traverse_mixin { |
| 344 |
|
my $object = shift; |
| 345 |
|
my $data = shift; |
| 346 |
|
my $bool_recursion = shift; |
| 347 |
|
my $options = shift; |
| 348 |
|
|
| 349 |
|
# clear our key - stack if we are called from user-code (non-recursively) |
| 350 |
|
@indexstack = () if (!$bool_recursion); |
| 351 |
|
|
| 352 |
|
my $classname = ref $object; |
| 353 |
|
# if ($classname) { |
| 354 |
|
# print STDERR "*****************", Dumper(Class::Tangram::attribute_types($classname)), "\n"; |
| 355 |
|
# } |
| 356 |
|
|
| 357 |
|
# parser: detected OBJECT (a Tangram one?) (reftype == HASH) (assume) |
| 358 |
|
# what's exactly done here? hmmm.... it works ;) |
| 359 |
|
# maybe a HACK: please try not to use "IntrHash"es, maybe this cannot handle them!!! |
| 360 |
|
# extend! check! |
| 361 |
|
|
| 362 |
|
#print attributes::reftype($object), "\n"; |
| 363 |
|
|
| 364 |
|
# V1 |
| 365 |
|
#if ((attributes::reftype($object) eq 'HASH') && (ref($object) ne 'HASH') && (ref($object) ne 'ARRAY')) { |
| 366 |
|
# V2 |
| 367 |
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my $reftype = attributes::reftype($object); |
| 368 |
|
#print "reftype: '$reftype'", "\n"; |
| 369 |
|
if ($reftype eq 'HASH') { |
| 370 |
|
|
| 371 |
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# print STDERR "===", "reftype: ", attributes::reftype($obj), "\n"; |
| 372 |
|
|
| 373 |
|
my @fields; |
| 374 |
|
# loop through fields of object (Tangram-object) |
| 375 |
|
@fields = keys %{$object}; |
| 376 |
|
|
| 377 |
|
# loop through fields of to.be.injected-data (arbitrary Perl-data-structure) |
| 378 |
|
@fields = keys %{$data} if $options->{init}; |
| 379 |
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# @fields = keys %{$data} if $options->{mixin}; |
| 380 |
|
|
| 381 |
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foreach (@fields) { |
| 382 |
|
my $field = $_; |
| 383 |
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push @indexstack, $field; |
| 384 |
|
|
| 385 |
|
# determine type of object |
| 386 |
|
my $ref = ref $object->{$field}; |
| 387 |
|
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
| 388 |
|
if ($ref) { |
| 389 |
|
_hash2object_traverse_mixin($object->{$field}, $data, 1, $options); |
| 390 |
|
} else { |
| 391 |
|
my $val = ref_slot($data, \@indexstack); |
| 392 |
|
|
| 393 |
|
#print Dumper($options); |
| 394 |
|
my $field_target = $field; |
| 395 |
|
if (my $pattern = $options->{pattern_strip_key}) { |
| 396 |
|
print "pattern: $pattern", "\n"; |
| 397 |
|
$field_target =~ s/$pattern//; |
| 398 |
|
print "field: $field_target", "\n"; |
| 399 |
|
} |
| 400 |
|
|
| 401 |
|
$object->{$field_target} = $val if defined $val; |
| 402 |
|
} |
| 403 |
|
pop @indexstack; |
| 404 |
|
} |
| 405 |
|
|
| 406 |
|
# save object to database ... |
| 407 |
|
# ... do an update if it already exists, do an insert if it doesn't |
| 408 |
|
# my $objectId = $self->{storage}->id($obj); |
| 409 |
|
# $logger->debug( __PACKAGE__ . "->saveObjectFromHash_traverse_mixin_update( object $obj objectId $objectId )" ); |
| 410 |
|
# if ($objectId) { |
| 411 |
|
# $self->{storage}->update($obj); |
| 412 |
|
|
| 413 |
|
#print __PACKAGE__ . ":", "\n"; |
| 414 |
|
#print Dumper($object); |
| 415 |
|
|
| 416 |
|
# } else { |
| 417 |
|
# $self->{storage}->insert($obj); |
| 418 |
|
# } |
| 419 |
|
|
| 420 |
|
} |
| 421 |
|
|
| 422 |
|
#&& ( ref($obj) ne 'HASH' ) |
| 423 |
|
|
| 424 |
|
# loop through entries of array (IntrArray, isn't it?) |
| 425 |
|
if ((ref $object) eq 'ARRAY') { |
| 426 |
|
# print STDERR "===", "refttype ", attributes::reftype($obj), "\n"; |
| 427 |
|
my $i = 0; |
| 428 |
|
foreach (@{$object}) { |
| 429 |
|
push @indexstack, $i; |
| 430 |
|
my $ref = ref $_; |
| 431 |
|
# print STDERR "attrname: $_ ATTRref: $ref", "\n"; |
| 432 |
|
# if ($ref && $_) { |
| 433 |
|
if ($ref) { |
| 434 |
|
_hash2object_traverse_mixin($_, $data, 1, $options); |
| 435 |
|
} else { |
| 436 |
|
$object->[$i] = $_ if defined $_; |
| 437 |
|
} |
| 438 |
|
pop @indexstack; |
| 439 |
|
$i++; |
| 440 |
|
} |
| 441 |
|
|
| 442 |
|
=pod |
| 443 |
|
# object? |
| 444 |
|
} else { |
| 445 |
|
print "reference: ", ref $object, "\n"; |
| 446 |
|
print "reftype: ", $reftype, "\n"; |
| 447 |
|
die(__PACKAGE__ . "->_hash2object_traverse_mixin: can not handle this!"); |
| 448 |
|
=cut |
| 449 |
|
|
| 450 |
|
} |
| 451 |
|
|
| 452 |
|
} |
| 453 |
|
|
| 454 |
|
|
| 455 |
|
# ACK's go to Randal L. Schwartz <merlyn@stonehenge.com> |
| 456 |
|
# on the website: |
| 457 |
|
# This text is copyright by Miller-Freeman, Inc., and is used with their permission. |
| 458 |
|
# Further distribution or use is not permitted. |
| 459 |
|
# please visit http://www.stonehenge.com/merlyn/UnixReview/col30.html |
| 460 |
|
sub deep_copy1 { |
| 461 |
|
my $this = shift; |
| 462 |
|
if (not ref $this) { |
| 463 |
|
$this; |
| 464 |
|
} elsif (ref $this eq "ARRAY") { |
| 465 |
|
[map deep_copy1($_), @$this]; |
| 466 |
|
} elsif (ref $this eq "HASH") { |
| 467 |
|
+{map { $_ => deep_copy1($this->{$_}) } keys %$this}; |
| 468 |
|
} elsif (ref $this eq "CODE") { |
| 469 |
|
$this; |
| 470 |
|
} else { die "deep_copy1 asks: what type is $this?" } |
| 471 |
|
#} else { print "deep_copy asks: what type is $this?", "\n"; } |
| 472 |
} |
} |
| 473 |
|
|
| 474 |
|
# ACK's go to Andrew Pitonyak |
| 475 |
|
# Copyright 2002, Andrew Pitonyak (perlboy@pitonyak.org) |
| 476 |
|
# please visit: http://www.pitonyak.org/code/perl/Pitonyak/DeepCopy.pm.html |
| 477 |
|
sub deep_copy { |
| 478 |
|
Pitonyak::DeepCopy::deep_copy(@_); |
| 479 |
|
} |
| 480 |
|
|
| 481 |
|
|
| 482 |
|
sub childObj2string { |
| 483 |
|
my $obj = shift; |
| 484 |
|
my $option = shift; |
| 485 |
|
my $classname = ref $obj; |
| 486 |
|
|
| 487 |
|
if($option == 1) { |
| 488 |
|
my $string = "o_" . $classname . "_" .$obj->{guid}; |
| 489 |
|
return $string; |
| 490 |
|
} |
| 491 |
|
} |
| 492 |
|
|
| 493 |
|
|
| 494 |
1; |
1; |
| 495 |
|
__END__ |
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