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joko |
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# (c) Sound Object Logic 2000-2001 |
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# Copyright 1999-2001 Gabor Herr. All rights reserved. |
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# This program is free software; you can redistribute it and/or modify it |
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# under the same terms as Perl itself |
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# Modified 29dec2000 by Jean-Louis Leroy |
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# replaced save() by get_exporter() |
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# fixed reschema(): $def->{dumper} was not set when using abbreviated forms |
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use strict; |
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use Tangram::Scalar; |
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package Tangram::PerlDump; |
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use base qw( Tangram::String ); |
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use Data::Dumper; |
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$Tangram::Schema::TYPES{perl_dump} = Tangram::PerlDump->new; |
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my $DumpMeth = (defined &Data::Dumper::Dumpxs) ? 'Dumpxs' : 'Dump'; |
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sub reschema { |
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my ($self, $members, $class, $schema) = @_; |
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if (ref($members) eq 'ARRAY') { |
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# short form |
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# transform into hash: { fieldname => { col => fieldname }, ... } |
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$_[1] = map { $_ => { col => $schema->{normalize}->($_, 'colname') } } @$members; |
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} |
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for my $field (keys %$members) { |
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my $def = $members->{$field}; |
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my $refdef = ref($def); |
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unless ($refdef) { |
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# not a reference: field => field |
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$def = $members->{$field} = { col => $schema->{normalize}->(($def || $field), 'colname') }; |
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$refdef = ref($def); |
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} |
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die ref($self), ": $class\:\:$field: unexpected $refdef" |
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unless $refdef eq 'HASH'; |
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$def->{col} ||= $schema->normalize->($field, 'colname'); |
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$def->{sql} ||= 'VARCHAR(255)'; |
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$def->{indent} ||= 0; |
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$def->{terse} ||= 1; |
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$def->{purity} ||= 0; |
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$def->{dumper} ||= sub { |
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$Data::Dumper::Indent = $def->{indent}; |
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$Data::Dumper::Terse = $def->{terse}; |
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$Data::Dumper::Purity = $def->{purity}; |
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$Data::Dumper::Varname = '_t::v'; |
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Data::Dumper->$DumpMeth([@_], []); |
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}; |
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} |
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return keys %$members; |
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} |
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sub get_importer |
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{ |
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my ($self, $context) = @_; |
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return "\$obj->{$self->{name}} = eval shift \@\$row"; |
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} |
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sub get_exporter |
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{ |
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my ($self, $context) = @_; |
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my $field = $self->{name}; |
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return sub { |
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my ($obj, $context) = @_; |
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$self->{dumper}->($obj->{$field}); |
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}; |
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} |
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sub save { |
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my ($self, $cols, $vals, $obj, $members, $storage) = @_; |
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my $dbh = $storage->{db}; |
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foreach my $member (keys %$members) { |
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my $memdef = $members->{$member}; |
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next if $memdef->{automatic}; |
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push @$cols, $memdef->{col}; |
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push @$vals, $dbh->quote(&{$memdef->{dumper}}($obj->{$member})); |
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} |
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} |
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