use warnings;
use base qw/
- DBIx::Class::Storage::DBI::NoBindVars
- DBIx::Class::Storage::DBI::ODBC::Microsoft_SQL_Server
+ DBIx::Class::Storage::DBI::Sybase
+ DBIx::Class::Storage::DBI::MSSQL
/;
+use mro 'c3';
+use Carp::Clan qw/^DBIx::Class/;
+
+# Temporary fix for mysterious MRO fail on 5.8 perls
+Class::C3::reinitialize if $] < '5.01';
+
+sub _rebless {
+ my $self = shift;
+ my $dbh = $self->_get_dbh;
+
+ return if ref $self ne __PACKAGE__;
+ if (not $self->_use_typeless_placeholders) {
+ require
+ DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars;
+ bless $self,
+ 'DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars';
+ $self->_rebless;
+ }
+}
+
+sub _run_connection_actions {
+ my $self = shift;
+
+ # LongReadLen doesn't work with MSSQL through DBD::Sybase, and the default is
+ # huge on some versions of SQL server and can cause memory problems, so we
+ # fix it up here (see ::DBI::Sybase.pm)
+ $self->set_textsize;
+
+ $self->next::method(@_);
+}
+
+sub _dbh_begin_work {
+ my $self = shift;
+
+ $self->_get_dbh->do('BEGIN TRAN');
+}
+
+sub _dbh_commit {
+ my $self = shift;
+ my $dbh = $self->_dbh
+ or $self->throw_exception('cannot COMMIT on a disconnected handle');
+ $dbh->do('COMMIT');
+}
+
+sub _dbh_rollback {
+ my $self = shift;
+ my $dbh = $self->_dbh
+ or $self->throw_exception('cannot ROLLBACK on a disconnected handle');
+ $dbh->do('ROLLBACK');
+}
+
+sub _get_server_version {
+ my $self = shift;
+
+ my $product_version = $self->_get_dbh->selectrow_hashref('master.dbo.xp_msver ProductVersion');
+
+ if ((my $version = $product_version->{Character_Value}) =~ /^(\d+)\./) {
+ return $version;
+ }
+ else {
+ $self->throw_exception(
+ "MSSQL Version Retrieval Failed, Your ProductVersion's Character_Value is missing or malformed!"
+ );
+ }
+}
+
+=head2 connect_call_datetime_setup
+
+Used as:
+
+ on_connect_call => 'datetime_setup'
+
+In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set:
+
+ $dbh->syb_date_fmt('ISO_strict'); # output fmt: 2004-08-21T14:36:48.080Z
+
+On connection for use with L<DBIx::Class::InflateColumn::DateTime>
+
+This works for both C<DATETIME> and C<SMALLDATETIME> columns, although
+C<SMALLDATETIME> columns only have minute precision.
+
+=cut
+
+{
+ my $old_dbd_warned = 0;
+
+ sub connect_call_datetime_setup {
+ my $self = shift;
+ my $dbh = $self->_get_dbh;
+
+ if ($dbh->can('syb_date_fmt')) {
+ # amazingly, this works with FreeTDS
+ $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;
+ }
+ }
+}
+
+sub datetime_parser_type {
+ 'DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::DateTime::Format'
+}
+
+package # hide from PAUSE
+ DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::DateTime::Format;
+
+my $datetime_parse_format = '%Y-%m-%dT%H:%M:%S.%3NZ';
+my $datetime_format_format = '%Y-%m-%d %H:%M:%S.%3N'; # %F %T
+
+my ($datetime_parser, $datetime_formatter);
+
+sub parse_datetime {
+ shift;
+ require DateTime::Format::Strptime;
+ $datetime_parser ||= DateTime::Format::Strptime->new(
+ pattern => $datetime_parse_format,
+ on_error => 'croak',
+ );
+ return $datetime_parser->parse_datetime(shift);
+}
+
+sub format_datetime {
+ shift;
+ require DateTime::Format::Strptime;
+ $datetime_formatter ||= DateTime::Format::Strptime->new(
+ pattern => $datetime_format_format,
+ on_error => 'croak',
+ );
+ return $datetime_formatter->format_datetime(shift);
+}
1;
=head1 NAME
-DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server - Storage::DBI subclass for MSSQL via
-DBD::Sybase
+DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server - Support for Microsoft
+SQL Server via DBD::Sybase
=head1 SYNOPSIS
-This subclass supports MSSQL connected via L<DBD::Sybase>.
-
- $schema->storage_type('::DBI::Sybase::Microsoft_SQL_Server');
- $schema->connect_info('dbi:Sybase:....', ...);
-
-=head1 CAVEATS
+This subclass supports MSSQL server connections via L<DBD::Sybase>.
-This storage driver uses L<DBIx::Class::Storage::DBI::NoBindVars> as a base.
-This means that bind variables will be interpolated (properly quoted of course)
-into the SQL query itself, without using bind placeholders.
+=head1 DESCRIPTION
-More importantly this means that caching of prepared statements is explicitly
-disabled, as the interpolation renders it useless.
+This driver tries to determine whether your version of L<DBD::Sybase> and
+supporting libraries (usually FreeTDS) support using placeholders, if not the
+storage will be reblessed to
+L<DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars>.
-=head1 AUTHORS
+The MSSQL specific functionality is provided by
+L<DBIx::Class::Storage::DBI::MSSQL>.
-Brandon L Black <blblack@gmail.com>
+=head1 AUTHOR
-Justin Hunter <justin.d.hunter@gmail.com>
+See L<DBIx::Class/CONTRIBUTORS>.
=head1 LICENSE
projects / dbsrgits/DBIx-Class.git / blobdiff