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dpavlin |
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package WebPAC::Output::DBI; |
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use warnings; |
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use strict; |
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use base qw/WebPAC::Common WebPAC::Output Class::Accessor/; |
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__PACKAGE__->mk_accessors(qw( |
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input |
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dsn |
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user |
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passwd |
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schema |
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table |
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)); |
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use Data::Dump qw/dump/; |
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use DBI; |
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use File::Slurp; |
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=head1 NAME |
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WebPAC::Output::DBI - feed data into RDBMS via DBI |
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=head1 FUNCTIONS |
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=head2 init |
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$out->init; |
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=cut |
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sub init { |
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my $self = shift; |
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my $log = $self->_get_logger; |
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$log->info($self->dsn); |
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$self->{_rows} = {}; |
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$self->{_sth} = {}; |
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$self->{_dbh} = DBI->connect( $self->dsn, $self->user, $self->passwd, { RaiseError => 1 } ); |
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eval { |
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$self->{_dbh}->do( scalar read_file( $self->schema ) ) if -e $self->schema; |
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}; |
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return 1; |
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} |
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=head2 add |
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Adds one entry to database. |
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$out->add( 42, $ds ); |
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=cut |
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sub add { |
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my $self = shift; |
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my ( $id, $ds ) = @_; |
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return unless defined $ds->{_rows}; |
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my $log = $self->_get_logger; |
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$id = $self->input . '-' . $id if $self->input; |
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foreach my $table ( keys %{ $ds->{_rows} } ) { |
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my @rows = @{ $ds->{_rows}->{$table} }; |
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foreach my $row ( @rows ) { |
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my @cols = sort keys %$row; |
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my $sth_id = $table . ':' . join(',',@cols); |
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my $sth |
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= $self->{_sth}->{$sth_id} |
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; |
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if ( ! $sth ) { |
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my $sql = join( '' |
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, 'insert into ' |
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, $table |
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. ' (' . join(',', @cols), ')' |
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, ' values (' |
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, join(',', map { '?' } 0 .. $#cols ) |
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, ')' |
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); |
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$log->debug( "SQL $sth_id: $sql" ); |
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$sth |
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= $self->{_sth}->{$sth_id} |
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= $self->{_dbh}->prepare( $sql ) |
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; |
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}; |
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$log->debug( "row $table ", sub { dump( $row ) } ); |
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$sth->execute( map { $row->{$_} } @cols ); |
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push @{ $self->{_rows}->{$table} }, $_ foreach @rows; |
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} |
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} |
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return 1; |
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} |
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=head2 finish |
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$out->finish; |
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=cut |
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sub finish { |
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my $self = shift; |
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my $log = $self->_get_logger(); |
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$log->info('finish and dump data into database'); |
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warn dump( $self->{_rows} ); |
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return 1; |
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} |
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=head1 AUTHOR |
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Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
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=head1 COPYRIGHT & LICENSE |
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Copyright 2009 Dobrica Pavlinusic, 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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=cut |
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1; # End of WebPAC::Output::CouchDB |