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cvsjoko |
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# $Id$ |
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# |
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# $Log$ |
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# |
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################################# |
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package Data::Storage::Handler::DBI; |
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use strict; |
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use warnings; |
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use base ("Data::Storage::Handler::Abstract"); |
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use DBI; |
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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our $metainfo = { |
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'disconnectMethod' => 'disconnect', |
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}; |
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sub connect { |
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my $self = shift; |
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# create handle |
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if ( my $dsn = $self->{dbi}->{dsn} ) { |
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$logger->debug( __PACKAGE__ . "->connect($dsn)" ); |
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$self->{COREHANDLE} = DBI->connect($dsn); |
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} |
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$self->configureCOREHANDLE(); |
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} |
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sub configureCOREHANDLE { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->_configureCOREHANDLE" ); |
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# apply configured modifications |
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if (exists $self->{dbi}->{trace_level} && exists $self->{dbi}->{trace_file}) { |
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$self->{COREHANDLE}->trace($self->{dbi}->{trace_level}, $self->{dbi}->{trace_file}); |
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} |
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if (exists $self->{dbi}->{RaiseError}) { |
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$self->{COREHANDLE}->{RaiseError} = $self->{dbi}->{RaiseError}; |
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} |
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if (exists $self->{dbi}->{PrintError}) { |
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$self->{COREHANDLE}->{PrintError} = $self->{dbi}->{PrintError}; |
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} |
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if (exists $self->{dbi}->{HandleError}) { |
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$self->{COREHANDLE}->{HandleError} = $self->{dbi}->{HandleError}; |
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} |
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} |
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sub _sendSql { |
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my $self = shift; |
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my $sql = shift; |
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my $sth = $self->{COREHANDLE}->prepare($sql); |
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$sth->execute(); |
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return $sth; |
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} |
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sub sendCommand { |
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my $self = shift; |
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my $command = shift; |
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my $cmdHandle = $self->_sendSql($command); |
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my $result = Data::Storage::Result::DBI->new( RESULTHANDLE => $cmdHandle ); |
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return $result; |
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} |
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sub quoteSql { |
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my $self = shift; |
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my $string = shift; |
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if ($string) { |
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$string =~ s/'/\\'/g; |
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} |
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return $string; |
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} |
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sub hash2Sql { |
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my $self = shift; |
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my $table = shift; |
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my $hash = shift; |
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my $mode = shift; |
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my $crit = shift; |
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my $sql; |
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if ($mode eq 'SQL_INSERT') { |
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$sql = "INSERT INTO $table (#fields#) VALUES (#values#);"; |
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} |
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if ($mode eq 'SQL_UPDATE') { |
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$sql = "UPDATE $table SET #fields-values# WHERE $crit;"; |
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} |
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my (@fields, @values); |
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foreach my $key (keys %{$hash}) { |
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push @fields, $key; |
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push @values, $hash->{$key}; |
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} |
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# quote each element |
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map { if (defined $_) { $_ = "'$_'" } else { $_ = "null" } } @values; |
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my $fields = join(', ', @fields); |
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my $values = join(', ', @values); |
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my $fields_values = ''; |
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my $fc = 0; |
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foreach (@fields) { |
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$fields_values .= $_ . '=' . $values[$fc] . ', '; |
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$fc++; |
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} |
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$fields_values = substr($fields_values, 0, -2); |
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$sql =~ s/#fields#/$fields/; |
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$sql =~ s/#values#/$values/; |
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$sql =~ s/#fields-values#/$fields_values/; |
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return $sql; |
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} |
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sub getChildNodes { |
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my $self = shift; |
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my @nodes; |
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if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
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while ( my $row = $result->_getNextEntry() ) { |
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push @nodes, $row; |
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} |
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} |
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return \@nodes; |
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} |
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package Data::Storage::Result::DBI; |
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use strict; |
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use warnings; |
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use base ("Data::Storage::Result"); |
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sub DESTROY { |
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my $self = shift; |
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#$logger->debug( __PACKAGE__ . "->" . "DESTROY" ); |
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$self->{RESULTHANDLE}->finish(); |
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} |
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sub _getNextEntry { |
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my $self = shift; |
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return $self->{RESULTHANDLE}->fetchrow_hashref; |
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} |
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