package DBIx::Class::Storage::DBI;
+use base 'DBIx::Class::Storage';
+
use strict;
use warnings;
use DBI;
my ($self, $table, $fields, $where, $order, @rest) = @_;
@rest = (-1) unless defined $rest[0];
local $self->{having_bind} = [];
- my ($sql, @ret) = $self->SUPER::select($table,
- $self->_recurse_fields($fields), $where, $order, @rest);
+ my ($sql, @ret) = $self->SUPER::select(
+ $table, $self->_recurse_fields($fields), $where, $order, @rest
+ );
return wantarray ? ($sql, @ret, @{$self->{having_bind}}) : $sql;
}
if (defined $_[0]->{order_by}) {
$ret .= $self->SUPER::_order_by($_[0]->{order_by});
}
+ } elsif(ref $_[0] eq 'SCALAR') {
+ $ret = $self->_sqlcase(' order by ').${ $_[0] };
} else {
$ret = $self->SUPER::_order_by(@_);
}
sub _make_as {
my ($self, $from) = @_;
return join(' ', map { (ref $_ eq 'SCALAR' ? $$_ : $self->_quote($_)) }
- reverse each %{$self->_skip_options($from)});
+ reverse each %{$self->_skip_options($from)});
}
sub _skip_options {
my ($self, $cond) = @_;
if (ref $cond eq 'HASH') {
my %j;
- for (keys %$cond) { my $x = '= '.$self->_quote($cond->{$_}); $j{$_} = \$x; };
+ for (keys %$cond) {
+ my $x = '= '.$self->_quote($cond->{$_}); $j{$_} = \$x;
+ };
return $self->_recurse_where(\%j);
} elsif (ref $cond eq 'ARRAY') {
return join(' OR ', map { $self->_join_condition($_) } @$cond);
__PACKAGE__->load_components(qw/AccessorGroup/);
__PACKAGE__->mk_group_accessors('simple' =>
- qw/connect_info _dbh _sql_maker _connection_pid debug debugfh cursor
- on_connect_do transaction_depth/);
+ qw/connect_info _dbh _sql_maker _conn_pid _conn_tid debug debugfh
+ cursor on_connect_do transaction_depth/);
sub new {
my $new = bless({}, ref $_[0] || $_[0]);
$new->transaction_depth(0);
if (defined($ENV{DBIX_CLASS_STORAGE_DBI_DEBUG}) &&
($ENV{DBIX_CLASS_STORAGE_DBI_DEBUG} =~ /=(.+)$/)) {
- $new->debugfh(IO::File->new($1, 'w')) || $new->throw_exception("Cannot open trace file $1");
+ $new->debugfh(IO::File->new($1, 'w'))
+ or $new->throw_exception("Cannot open trace file $1");
} else {
$new->debugfh(IO::File->new('>&STDERR'));
}
sub throw_exception {
my ($self, $msg) = @_;
- croask($msg);
+ croak($msg);
}
=head1 NAME
sub connected {
my ($self) = @_;
- my $dbh;
- (($dbh = $self->_dbh) && $dbh->FETCH('Active') && $dbh->ping)
+ if(my $dbh = $self->_dbh) {
+ if(defined $self->_conn_tid && $self->_conn_tid != threads->tid) {
+ $self->_sql_maker(undef);
+ return $self->_dbh(undef);
+ }
+ elsif($self->_conn_pid != $$) {
+ $self->_dbh->{InactiveDestroy} = 1;
+ $self->_sql_maker(undef);
+ return $self->_dbh(undef)
+ }
+ return ($dbh->FETCH('Active') && $dbh->ping);
+ }
+
+ return 0;
}
sub ensure_connected {
sub dbh {
my ($self) = @_;
- $self->_dbh(undef)
- if $self->_connection_pid && $self->_connection_pid != $$;
$self->ensure_connected;
return $self->_dbh;
}
$self->_dbh->do($sql_statement);
}
- $self->_connection_pid($$);
+ $self->_conn_pid($$);
+ $self->_conn_tid(threads->tid) if $INC{'threads.pm'};
}
sub _connect {
my ($self, @info) = @_;
+ $self->throw_exception("You failed to provide any connection info")
+ if !@info;
+
+ my ($old_connect_via, $dbh);
+
if ($INC{'Apache/DBI.pm'} && $ENV{MOD_PERL}) {
- my $old_connect_via = $DBI::connect_via;
+ $old_connect_via = $DBI::connect_via;
$DBI::connect_via = 'connect';
- my $dbh = DBI->connect(@info);
- $DBI::connect_via = $old_connect_via;
- return $dbh;
}
- my $dbh = DBI->connect(@info);
+ if(ref $info[0] eq 'CODE') {
+ $dbh = &{$info[0]};
+ }
+ else {
+ $dbh = DBI->connect(@info);
+ }
+
+ $DBI::connect_via = $old_connect_via if $old_connect_via;
+
$self->throw_exception("DBI Connection failed: $DBI::errstr")
unless $dbh;
+
$dbh;
}
Calls begin_work on the current dbh.
+See L<DBIx::Class::Schema> for the txn_do() method, which allows for
+an entire code block to be executed transactionally.
+
=cut
sub txn_begin {
my $self = shift;
- $self->dbh->begin_work if $self->{transaction_depth}++ == 0 and $self->dbh->{AutoCommit};
+ $self->dbh->begin_work
+ if $self->{transaction_depth}++ == 0 and $self->dbh->{AutoCommit};
}
=head2 txn_commit
=head2 txn_rollback
-Issues a rollback against the current dbh.
+Issues a rollback against the current dbh. A nested rollback will
+throw a L<DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION> exception,
+which allows the rollback to propagate to the outermost transaction.
=cut
sub txn_rollback {
my $self = shift;
- if ($self->{transaction_depth} == 0) {
- $self->dbh->rollback unless $self->dbh->{AutoCommit};
- }
- else {
- --$self->{transaction_depth} == 0 ? $self->dbh->rollback : die $@;
+
+ eval {
+ if ($self->{transaction_depth} == 0) {
+ $self->dbh->rollback unless $self->dbh->{AutoCommit};
+ }
+ else {
+ --$self->{transaction_depth} == 0 ?
+ $self->dbh->rollback :
+ die DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION->new;
+ }
+ };
+
+ if ($@) {
+ my $error = $@;
+ my $exception_class = "DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION";
+ $error =~ /$exception_class/ and $self->throw_exception($error);
+ $self->{transaction_depth} = 0; # ensure that a failed rollback
+ $self->throw_exception($error); # resets the transaction depth
}
}
my ($sql, @bind) = $self->sql_maker->$op($ident, @args);
unshift(@bind, @$extra_bind) if $extra_bind;
if ($self->debug) {
- my @debug_bind = map { defined $_ ? $_ : 'NULL' } @bind;
- $self->debugfh->print("$sql: @debug_bind\n");
+ my @debug_bind = map { defined $_ ? qq{`$_'} : q{`NULL'} } @bind;
+ $self->debugfh->print("$sql: " . join(', ', @debug_bind) . "\n");
}
my $sth = $self->sth($sql,$op);
$self->throw_exception("no sth generated via sql: $sql") unless $sth;
@bind = map { ref $_ ? ''.$_ : $_ } @bind; # stringify args
my $rv;
if ($sth) {
- $rv = $sth->execute(@bind);
+ $rv = $sth->execute(@bind)
+ or $self->throw_exception("Error executing '$sql': " . $sth->errstr);
} else {
$self->throw_exception("'$sql' did not generate a statement.");
}
sub insert {
my ($self, $ident, $to_insert) = @_;
- $self->throw_exception( "Couldn't insert ".join(', ', map "$_ => $to_insert->{$_}", keys %$to_insert)." into ${ident}" )
- unless ($self->_execute('insert' => [], $ident, $to_insert));
+ $self->throw_exception(
+ "Couldn't insert ".join(', ',
+ map "$_ => $to_insert->{$_}", keys %$to_insert
+ )." into ${ident}"
+ ) unless ($self->_execute('insert' => [], $ident, $to_insert));
return $to_insert;
}
$order = $1 if $$condition =~ s/ORDER BY (.*)$//i;
}
if (exists $attrs->{group_by} || $attrs->{having}) {
- $order = { group_by => $attrs->{group_by},
- having => $attrs->{having},
- ($order ? (order_by => $order) : ()) };
+ $order = {
+ group_by => $attrs->{group_by},
+ having => $attrs->{having},
+ ($order ? (order_by => $order) : ())
+ };
}
my @args = ('select', $attrs->{bind}, $ident, $select, $condition, $order);
if ($attrs->{software_limit} ||
=cut
sub columns_info_for {
- my ($self, $table) = @_;
+ my ($self, $table) = @_;
+
+ if ($self->dbh->can('column_info')) {
my %result;
- if ( $self->dbh->can( 'column_info' ) ){
- my $sth = $self->dbh->column_info( undef, undef, $table, '%' );
- $sth->execute();
- while ( my $info = $sth->fetchrow_hashref() ){
- my %column_info;
- $column_info{data_type} = $info->{TYPE_NAME};
- $column_info{size} = $info->{COLUMN_SIZE};
- $column_info{is_nullable} = $info->{NULLABLE};
- $result{$info->{COLUMN_NAME}} = \%column_info;
- }
- } else {
- my $sth = $self->dbh->prepare("SELECT * FROM $table WHERE 1=0");
- $sth->execute;
- my @columns = @{$sth->{NAME}};
- for my $i ( 0 .. $#columns ){
- $result{$columns[$i]}{data_type} = $sth->{TYPE}->[$i];
- }
+ my $old_raise_err = $self->dbh->{RaiseError};
+ my $old_print_err = $self->dbh->{PrintError};
+ $self->dbh->{RaiseError} = 1;
+ $self->dbh->{PrintError} = 0;
+ eval {
+ my $sth = $self->dbh->column_info( undef, undef, $table, '%' );
+ $sth->execute();
+ while ( my $info = $sth->fetchrow_hashref() ){
+ my %column_info;
+ $column_info{data_type} = $info->{TYPE_NAME};
+ $column_info{size} = $info->{COLUMN_SIZE};
+ $column_info{is_nullable} = $info->{NULLABLE} ? 1 : 0;
+ $column_info{default_value} = $info->{COLUMN_DEF};
+
+ $result{$info->{COLUMN_NAME}} = \%column_info;
+ }
+ };
+ $self->dbh->{RaiseError} = $old_raise_err;
+ $self->dbh->{PrintError} = $old_print_err;
+ return \%result if !$@;
+ }
+
+ my %result;
+ my $sth = $self->dbh->prepare("SELECT * FROM $table WHERE 1=0");
+ $sth->execute;
+ my @columns = @{$sth->{NAME_lc}};
+ for my $i ( 0 .. $#columns ){
+ my %column_info;
+ my $type_num = $sth->{TYPE}->[$i];
+ my $type_name;
+ if(defined $type_num && $self->dbh->can('type_info')) {
+ my $type_info = $self->dbh->type_info($type_num);
+ $type_name = $type_info->{TYPE_NAME} if $type_info;
}
- return \%result;
+ $column_info{data_type} = $type_name ? $type_name : $type_num;
+ $column_info{size} = $sth->{PRECISION}->[$i];
+ $column_info{is_nullable} = $sth->{NULLABLE}->[$i] ? 1 : 0;
+
+ if ($column_info{data_type} =~ m/^(.*?)\((.*?)\)$/) {
+ $column_info{data_type} = $1;
+ $column_info{size} = $2;
+ }
+
+ $result{$columns[$i]} = \%column_info;
+ }
+
+ return \%result;
}
sub last_insert_id {
}
-sub sqlt_type {
- my ($self) = @_;
- my $dsn = $self->connect_info->[0];
- $dsn =~ /^dbi:(.*?)\d*:/;
- return $1;
-}
+sub sqlt_type { shift->dbh->{Driver}->{Name} }
sub deployment_statements {
- my ($self, $schema, $type) = @_;
+ my ($self, $schema, $type, $sqltargs) = @_;
$type ||= $self->sqlt_type;
eval "use SQL::Translator";
$self->throw_exception("Can't deploy without SQL::Translator: $@") if $@;
$self->throw_exception($@) if $@;
eval "use SQL::Translator::Producer::${type};";
$self->throw_exception($@) if $@;
- my $tr = SQL::Translator->new();
+ my $tr = SQL::Translator->new(%$sqltargs);
SQL::Translator::Parser::DBIx::Class::parse( $tr, $schema );
return "SQL::Translator::Producer::${type}"->can('produce')->($tr);
}
sub deploy {
- my ($self, $schema, $type) = @_;
- $self->dbh->do($_) for split(";\n", $self->deployment_statements($schema, $type));
+ my ($self, $schema, $type, $sqltargs) = @_;
+ my @statements = $self->deployment_statements($schema, $type, $sqltargs);
+ foreach(split(";\n", @statements)) {
+ $self->debugfh->print("$_\n") if $self->debug;
+ $self->dbh->do($_) or warn "SQL was:\n $_";
+ }
}
sub DESTROY { shift->disconnect }