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# (c) Sound Object Logic 2000-2001
use strict;
use Tangram::Core;
package Tangram::mysql;
use vars qw(@ISA);
@ISA = qw( Tangram::Relational );
sub connect
{
shift;
return Tangram::mysql::Storage->connect( @_ );
}
package Tangram::mysql::Storage;
use Tangram::Storage;
use vars qw(@ISA);
@ISA = qw( Tangram::Storage );
sub make_id
{
my ($storage, $class_id) = @_;
if ($storage->{layout1}) {
my $table = $storage->{schema}{class_table};
$storage->sql_do("UPDATE $table SET lastObjectId = LAST_INSERT_ID(lastObjectId + 1) WHERE classId = $class_id");
} else {
my $table = $storage->{schema}{control};
$storage->sql_do("UPDATE $table SET mark = LAST_INSERT_ID(mark + 1)");
}
return sprintf "%d%0$storage->{cid_size}d", $storage->sql_selectall_arrayref("SELECT LAST_INSERT_ID()")->[0][0], $class_id;
}
sub tx_start
{
my $storage = shift;
$storage->sql_do(q/SELECT GET_LOCK("tx", 10)/)
unless @{ $storage->{tx} };
$storage->SUPER::tx_start(@_);
}
sub tx_commit
{
my $storage = shift;
$storage->SUPER::tx_commit(@_);
$storage->sql_do(q/SELECT RELEASE_LOCK("tx")/)
unless @{ $storage->{tx} };
}
sub tx_rollback
{
my $storage = shift;
$storage->sql_do(q/SELECT RELEASE_LOCK("tx")/);
$storage->SUPER::tx_rollback(@_);
}
my %improved_date =
(
'Tangram::RawDateTime' => 'Tangram::mysql::DateExpr',
'Tangram::RawDate' => 'Tangram::mysql::DateExpr',
);
sub expr
{
my $self = shift;
my $type = shift;
my ($expr, @remotes) = @_;
return Tangram::mysql::IntegerExpr->new($type, $expr, @remotes)
if ref($type) eq 'Tangram::Integer';
my $improved_date = $improved_date{ref($type)};
return $improved_date->new($type, $expr, @remotes)
if $improved_date;
return $type->expr(@_);
}
package Tangram::mysql::IntegerExpr;
use vars qw(@ISA);
@ISA = qw( Tangram::Expr );
sub bitwise_and
{
my ($self, $val) = @_;
return Tangram::Integer->expr("$self->{expr} & $val", $self->objects);
}
sub bitwise_nand
{
my ($self, $val) = @_;
return Tangram::Integer->expr("~$self->{expr} & $val",
$self->objects);
}
sub bitwise_or
{
my ($self, $val) = @_;
return Tangram::Integer->expr("$self->{expr} | $val", $self->objects);
}
sub bitwise_nor
{
my ($self, $val) = @_;
return Tangram::Integer->expr("~$self->{expr} | $val", $self->objects);
}
package Tangram::mysql::DateExpr;
use vars qw(@ISA);
@ISA = qw( Tangram::Expr );
my %autofun = (
dayofweek => 'Integer',
weekday => 'Integer',
dayofmonth => 'Integer',
dayofyear => 'Integer',
month => 'Integer',
dayname => 'String',
monthname => 'String',
quarter => 'Integer',
week => 'Integer',
year => 'Integer',
yearweek => 'Integer',
to_days => 'Integer',
unix_timestamp => 'Integer',
);
use vars qw( $AUTOLOAD );
use Carp;
sub AUTOLOAD
{
my ($self) = @_;
my ($fun) = $AUTOLOAD =~ /\:\:(\w+)$/;
croak "Unknown method '$fun'"
unless exists $autofun{$fun};
eval <<SUBDEF;
sub $fun
{
my (\$self, \$part) = \@_;
my \$expr = \$self->expr();
return Tangram\:\:$autofun{$fun}->expr("\U$fun\E(\$expr)", \$self->objects);
}
SUBDEF
goto &$fun;
}
1;
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