use strict;
use warnings;
+use DBIx::Class::_Util 'dbic_internal_try';
+use Try::Tiny;
+use namespace::clean;
use base qw/DBIx::Class::Storage::DBI/;
-use Carp::Clan qw/^DBIx::Class/;
+=head1 NAME
-sub _rebless {
- my $self = shift;
+DBIx::Class::Storage::DBI::Sybase - Base class for drivers using
+L<DBD::Sybase>
- if (ref($self) eq 'DBIx::Class::Storage::DBI::Sybase') {
- my $dbtype = eval {
- @{$self->dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2]
- } || '';
-
- my $exception = $@;
- $dbtype =~ s/\W/_/gi;
- my $subclass = "DBIx::Class::Storage::DBI::Sybase::${dbtype}";
-
- if (!$exception && $dbtype && $self->load_optional_class($subclass)) {
- bless $self, $subclass;
- $self->_rebless;
- } elsif (not $self->dbh->{syb_dynamic_supported}) {
-# probably real Sybase
- bless $self, 'DBIx::Class::Storage:DBI::Sybase::NoBindVars';
- $self->_rebless;
- }
- }
-}
+=head1 DESCRIPTION
-{
- my $old_dbd_warned = 0;
+This is the base class/dispatcher for Storage's designed to work with
+L<DBD::Sybase>
- sub _populate_dbh {
- my $self = shift;
- $self->next::method(@_);
- my $dbh = $self->_dbh;
+=head1 METHODS
- if ($dbh->can('syb_date_fmt')) {
- $dbh->syb_date_fmt('ISO_strict');
- } elsif (not $old_dbd_warned) {
- carp "Your DBD::Sybase is too old to support ".
- "DBIx::Class::InflateColumn::DateTime, please upgrade!";
- $old_dbd_warned = 1;
- }
+=cut
- $dbh->do('set dateformat mdy');
+sub _rebless { shift->_determine_connector_driver('Sybase') }
- 1;
- }
-}
+sub _get_rdbms_name {
+ my $self = shift;
+
+ dbic_internal_try {
+ my $name = $self->_get_dbh->selectrow_arrayref('sp_server_info @attribute_id=1')->[2];
+
+ if ($name) {
+ $name =~ s/\W/_/gi;
-sub _dbh_last_insert_id {
- my ($self, $dbh, $source, $col) = @_;
+ # saner class name
+ $name = 'ASE' if $name eq 'SQL_Server';
+ }
- # sorry, there's no other way!
- my $sth = $dbh->prepare_cached("select max($col) from ".$source->from);
- return ($dbh->selectrow_array($sth))[0];
+ $name; # RV
+ } catch {
+ $self->throw_exception("Unable to establish connection to determine database type: $_")
+ };
}
-sub datetime_parser_type { "DBIx::Class::Storage::DBI::Sybase::DateTime" }
+sub _init {
+ # once the driver is determined see if we need to insert the DBD::Sybase w/ FreeTDS fixups
+ # this is a dirty version of "instance role application", \o/ DO WANT Moo \o/
+ my $self = shift;
+ if (! $self->isa('DBIx::Class::Storage::DBI::Sybase::FreeTDS') and $self->_using_freetds) {
+ require DBIx::Class::Storage::DBI::Sybase::FreeTDS;
-1;
+ my @isa = @{mro::get_linear_isa(ref $self)};
+ my $class = shift @isa; # this is our current ref
-=head1 NAME
+ my $trait_class = $class . '::FreeTDS';
+ mro::set_mro ($trait_class, 'c3');
+ no strict 'refs';
+ @{"${trait_class}::ISA"} = ($class, 'DBIx::Class::Storage::DBI::Sybase::FreeTDS', @isa);
-DBIx::Class::Storage::DBI::Sybase - Storage::DBI subclass for Sybase
+ bless ($self, $trait_class);
-=head1 SYNOPSIS
+ Class::C3->reinitialize() if DBIx::Class::_ENV_::OLD_MRO;
-This subclass supports L<DBD::Sybase> for real Sybase databases. If
-you are using an MSSQL database via L<DBD::Sybase>, see
-L<DBIx::Class::Storage::DBI::Sybase::MSSQL>.
+ $self->_init(@_);
+ }
+
+ $self->next::method(@_);
+}
-=head1 CAVEATS
+sub _ping {
+ my $self = shift;
-If your version of Sybase does not support placeholders, then this storage
-driver uses L<DBIx::Class::Storage::DBI::NoBindVars> as a base,
+ my $dbh = $self->_dbh or return 0;
-In which case, bind variables will be interpolated (properly quoted of course)
-into the SQL query itself, without using bind placeholders.
+ local $dbh->{RaiseError} = 1;
+ local $dbh->{PrintError} = 0;
-More importantly this means that caching of prepared statements is explicitly
-disabled, as the interpolation renders it useless.
+# FIXME if the main connection goes stale, does opening another for this statement
+# really determine anything?
+# FIXME (2) THIS MAKES 0 SENSE!!! Need to test later
+ if ($dbh->{syb_no_child_con}) {
+ return dbic_internal_try {
+ $self->_connect->do('select 1');
+ 1;
+ }
+ catch {
+ 0;
+ };
+ }
-If your version of Sybase B<DOES> support placeholders (check
-C<<$dbh->{syb_dynamic_supported}>> then unfortunately there's no way to get the
-C<last_insert_id> without doing a C<select max(col)>.
+ return (
+ (dbic_internal_try {
+ $dbh->do('select 1');
+ 1;
+ })
+ ? 1
+ : 0
+ );
+}
-But your queries will be cached.
+sub _set_max_connect {
+ my $self = shift;
+ my $val = shift || 256;
-=head1 DATES
+ my $dsn = $self->_dbi_connect_info->[0];
-On connection C<syb_date_fmt> is set to C<ISO_strict>, e.g.:
-C<2004-08-21T14:36:48.080Z> and C<dateformat> is set to C<mdy>, e.g.:
-C<08/13/1979>.
+ return if ref($dsn) eq 'CODE';
-You will need the L<DateTime::Format::Strptime> module if you are going to use
-L<DBIx::Class::InflateColumn::DateTime>.
+ if ($dsn !~ /maxConnect=/) {
+ $self->_dbi_connect_info->[0] = "$dsn;maxConnect=$val";
+ my $connected = defined $self->_dbh;
+ $self->disconnect;
+ $self->ensure_connected if $connected;
+ }
+}
-=head1 AUTHORS
+# Whether or not DBD::Sybase was compiled against FreeTDS. If false, it means
+# the Sybase OpenClient libraries were used.
+sub _using_freetds {
+ my $self = shift;
+ return ($self->_get_dbh->{syb_oc_version}||'') =~ /freetds/i;
+}
-Brandon L Black <blblack@gmail.com>
+# Either returns the FreeTDS version against which DBD::Sybase was compiled,
+# 0 if can't be determined, or undef otherwise
+sub _using_freetds_version {
+ my $inf = shift->_get_dbh->{syb_oc_version};
+ return undef unless ($inf||'') =~ /freetds/i;
+ return $inf =~ /v([0-9\.]+)/ ? $1 : 0;
+}
-Justin Hunter <justin.d.hunter@gmail.com>
+=head1 FURTHER QUESTIONS?
-Rafael Kitover <rkitover@cpan.org>
+Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
-=head1 LICENSE
+=head1 COPYRIGHT AND LICENSE
-You may distribute this code under the same terms as Perl itself.
+This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
+by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
+redistribute it and/or modify it under the same terms as the
+L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.
=cut
-# vim:sts=2 sw=2:
+
+1;
+