| 1 |
################################# |
| 2 |
# |
| 3 |
# $Id: DBI.pm,v 1.1 2002/10/10 03:44:07 cvsjoko Exp $ |
| 4 |
# |
| 5 |
# $Log: DBI.pm,v $ |
| 6 |
# Revision 1.1 2002/10/10 03:44:07 cvsjoko |
| 7 |
# + new |
| 8 |
# |
| 9 |
# |
| 10 |
################################# |
| 11 |
|
| 12 |
package Data::Storage::Handler::DBI; |
| 13 |
|
| 14 |
use strict; |
| 15 |
use warnings; |
| 16 |
|
| 17 |
use base ("Data::Storage::Handler::Abstract"); |
| 18 |
|
| 19 |
use DBI; |
| 20 |
|
| 21 |
# get logger instance |
| 22 |
my $logger = Log::Dispatch::Config->instance; |
| 23 |
|
| 24 |
|
| 25 |
our $metainfo = { |
| 26 |
'disconnectMethod' => 'disconnect', |
| 27 |
}; |
| 28 |
|
| 29 |
sub connect { |
| 30 |
|
| 31 |
my $self = shift; |
| 32 |
|
| 33 |
# create handle |
| 34 |
if ( my $dsn = $self->{dbi}->{dsn} ) { |
| 35 |
$logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" ); |
| 36 |
|
| 37 |
# HACK: |
| 38 |
# set errorhandler before actually calling DBI->connect |
| 39 |
# in order to catch errors from the very beginning |
| 40 |
#DBI->{HandleError} = $self->{dbi}->{HandleError}; |
| 41 |
|
| 42 |
#use Data::Dumper; print Dumper($self->{dbi}); |
| 43 |
|
| 44 |
$self->{COREHANDLE} = DBI->connect( |
| 45 |
$dsn, '', '', { |
| 46 |
RaiseError => $self->{dbi}->{RaiseError}, |
| 47 |
#RaiseError => 1, |
| 48 |
PrintError => $self->{dbi}->{PrintError}, |
| 49 |
HandleError => $self->{dbi}->{HandleError}, |
| 50 |
} |
| 51 |
); |
| 52 |
if (!$self->{COREHANDLE}) { |
| 53 |
$logger->warning( __PACKAGE__ . "->connect failed: " . DBI::errstr ); |
| 54 |
return; |
| 55 |
} |
| 56 |
} |
| 57 |
$self->configureCOREHANDLE(); |
| 58 |
|
| 59 |
return 1; |
| 60 |
|
| 61 |
} |
| 62 |
|
| 63 |
sub configureCOREHANDLE { |
| 64 |
|
| 65 |
my $self = shift; |
| 66 |
|
| 67 |
$logger->debug( __PACKAGE__ . "->_configureCOREHANDLE" ); |
| 68 |
|
| 69 |
# apply configured modifications |
| 70 |
if (exists $self->{dbi}->{trace_level} && exists $self->{dbi}->{trace_file}) { |
| 71 |
$self->{COREHANDLE}->trace($self->{dbi}->{trace_level}, $self->{dbi}->{trace_file}); |
| 72 |
} |
| 73 |
if (exists $self->{dbi}->{RaiseError}) { |
| 74 |
$self->{COREHANDLE}->{RaiseError} = $self->{dbi}->{RaiseError}; |
| 75 |
} |
| 76 |
if (exists $self->{dbi}->{PrintError}) { |
| 77 |
$self->{COREHANDLE}->{PrintError} = $self->{dbi}->{PrintError}; |
| 78 |
} |
| 79 |
if (exists $self->{dbi}->{HandleError}) { |
| 80 |
$self->{COREHANDLE}->{HandleError} = $self->{dbi}->{HandleError}; |
| 81 |
} |
| 82 |
|
| 83 |
} |
| 84 |
|
| 85 |
sub _sendSql { |
| 86 |
my $self = shift; |
| 87 |
my $sql = shift; |
| 88 |
|
| 89 |
# two-level handling for implicit connect: |
| 90 |
# if there's no corehandle ... |
| 91 |
if (!$self->{COREHANDLE}) { |
| 92 |
# ... try to connect, but ... |
| 93 |
$self->connect(); |
| 94 |
# ... if this still fails, there's something wrong probably, so we won't continue |
| 95 |
if (!$self->{COREHANDLE}) { |
| 96 |
return; |
| 97 |
} |
| 98 |
} |
| 99 |
|
| 100 |
my $sth = $self->{COREHANDLE}->prepare($sql); |
| 101 |
$sth->execute(); |
| 102 |
return $sth; |
| 103 |
} |
| 104 |
|
| 105 |
sub sendCommand { |
| 106 |
my $self = shift; |
| 107 |
my $command = shift; |
| 108 |
#$logger->debug( __PACKAGE__ . "->sendCommand( command $command )" ); |
| 109 |
my $cmdHandle = $self->_sendSql($command); |
| 110 |
my $result = Data::Storage::Result::DBI->new( RESULTHANDLE => $cmdHandle ); |
| 111 |
return $result; |
| 112 |
} |
| 113 |
|
| 114 |
sub quoteSql { |
| 115 |
my $self = shift; |
| 116 |
my $string = shift; |
| 117 |
if ($string) { |
| 118 |
$string =~ s/'/\\'/g; |
| 119 |
} |
| 120 |
return $string; |
| 121 |
} |
| 122 |
|
| 123 |
sub hash2Sql { |
| 124 |
|
| 125 |
my $self = shift; |
| 126 |
|
| 127 |
my $table = shift; |
| 128 |
my $hash = shift; |
| 129 |
my $mode = shift; |
| 130 |
my $crit = shift; |
| 131 |
|
| 132 |
my $sql; |
| 133 |
if ($mode eq 'SQL_INSERT') { |
| 134 |
$sql = "INSERT INTO $table (#fields#) VALUES (#values#);"; |
| 135 |
} |
| 136 |
if ($mode eq 'SQL_UPDATE') { |
| 137 |
$sql = "UPDATE $table SET #fields-values# WHERE $crit;"; |
| 138 |
} |
| 139 |
|
| 140 |
my (@fields, @values); |
| 141 |
foreach my $key (keys %{$hash}) { |
| 142 |
push @fields, $key; |
| 143 |
push @values, $hash->{$key}; |
| 144 |
} |
| 145 |
# quote each element |
| 146 |
map { if (defined $_) { $_ = "'$_'" } else { $_ = "null" } } @values; |
| 147 |
|
| 148 |
my $fields = join(', ', @fields); |
| 149 |
my $values = join(', ', @values); |
| 150 |
my $fields_values = ''; |
| 151 |
my $fc = 0; |
| 152 |
foreach (@fields) { |
| 153 |
$fields_values .= $_ . '=' . $values[$fc] . ', '; |
| 154 |
$fc++; |
| 155 |
} |
| 156 |
$fields_values = substr($fields_values, 0, -2); |
| 157 |
|
| 158 |
$sql =~ s/#fields#/$fields/; |
| 159 |
$sql =~ s/#values#/$values/; |
| 160 |
$sql =~ s/#fields-values#/$fields_values/; |
| 161 |
|
| 162 |
return $sql; |
| 163 |
} |
| 164 |
|
| 165 |
|
| 166 |
sub getChildNodes { |
| 167 |
|
| 168 |
my $self = shift; |
| 169 |
my @nodes; |
| 170 |
|
| 171 |
if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
| 172 |
while ( my $row = $result->_getNextEntry() ) { |
| 173 |
push @nodes, $row; |
| 174 |
} |
| 175 |
} |
| 176 |
|
| 177 |
return \@nodes; |
| 178 |
|
| 179 |
} |
| 180 |
|
| 181 |
|
| 182 |
|
| 183 |
|
| 184 |
package Data::Storage::Result::DBI; |
| 185 |
|
| 186 |
use strict; |
| 187 |
use warnings; |
| 188 |
|
| 189 |
use base ("Data::Storage::Result"); |
| 190 |
|
| 191 |
sub DESTROY { |
| 192 |
my $self = shift; |
| 193 |
#$logger->debug( __PACKAGE__ . "->" . "DESTROY" ); |
| 194 |
$self->{RESULTHANDLE} && $self->{RESULTHANDLE}->finish(); |
| 195 |
} |
| 196 |
|
| 197 |
sub _getNextEntry { |
| 198 |
my $self = shift; |
| 199 |
$self->{RESULTHANDLE} && return $self->{RESULTHANDLE}->fetchrow_hashref; |
| 200 |
} |
| 201 |
|
| 202 |
|
| 203 |
1; |
Parent Directory
| 
Revision Log
