Remove non-functional part of ::Storage::DBI::Sybase::_ping

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI / Sybase.pm

diff --git a/lib/DBIx/Class/Storage/DBI/Sybase.pm b/lib/DBIx/Class/Storage/DBI/Sybase.pm
index cb7408b..9f2b84a 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/Sybase.pm
+++ b/lib/DBIx/Class/Storage/DBI/Sybase.pm
@@ -2,36 +2,129 @@ package DBIx::Class::Storage::DBI::Sybase;
 
 use strict;
 use warnings;
+use DBIx::Class::_Util 'dbic_internal_try';
+use Try::Tiny;
+use namespace::clean;
 
-use base qw/DBIx::Class::Storage::DBI::NoBindVars/;
+use base qw/DBIx::Class::Storage::DBI/;
 
-my %noquote = map { $_ => 1 } qw(int integer);
+=head1 NAME
+
+DBIx::Class::Storage::DBI::Sybase - Base class for drivers using
+L<DBD::Sybase>
+
+=head1 DESCRIPTION
+
+This is the base class/dispatcher for Storage's designed to work with
+L<DBD::Sybase>
+
+=head1 METHODS
 
-sub should_quote_data_type {
+=cut
+
+sub _rebless { shift->_determine_connector_driver('Sybase') }
+
+sub _get_rdbms_name {
   my $self = shift;
-  my ($type) = @_;
-  return 0 if $noquote{$type};
-  return $self->next::method(@_);
+
+  dbic_internal_try {
+    my $name = $self->_get_dbh->selectrow_arrayref('sp_server_info @attribute_id=1')->[2];
+
+    if ($name) {
+      $name =~ s/\W/_/gi;
+
+      # saner class name
+      $name = 'ASE' if $name eq 'SQL_Server';
+    }
+
+    $name;  # RV
+  } catch {
+    $self->throw_exception("Unable to establish connection to determine database type: $_")
+  };
 }
 
-1;
+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;
 
-=head1 NAME
+    my @isa = @{mro::get_linear_isa(ref $self)};
+    my $class = shift @isa; # this is our current ref
+
+    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);
+
+    bless ($self, $trait_class);
+
+    Class::C3->reinitialize() if DBIx::Class::_ENV_::OLD_MRO;
+
+    $self->_init(@_);
+  }
 
-DBIx::Class::Storage::DBI::Sybase - Storage::DBI subclass for Sybase
+  $self->next::method(@_);
+}
+
+sub _ping {
+  my $self = shift;
+
+  my $dbh = $self->_dbh or return 0;
+
+  local $dbh->{RaiseError} = 1;
+  local $dbh->{PrintError} = 0;
 
-=head1 SYNOPSIS
+  ( dbic_internal_try { $dbh->do('select 1'); 1 } )
+    ? 1
+    : 0
+  ;
+}
 
-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>.
+sub _set_max_connect {
+  my $self = shift;
+  my $val  = shift || 256;
 
-=head1 AUTHORS
+  my $dsn = $self->_dbi_connect_info->[0];
 
-Brandon L Black <blblack@gmail.com>
+  return if ref($dsn) eq 'CODE';
 
-=head1 LICENSE
+  if ($dsn !~ /maxConnect=/) {
+    $self->_dbi_connect_info->[0] = "$dsn;maxConnect=$val";
+    my $connected = defined $self->_dbh;
+    $self->disconnect;
+    $self->ensure_connected if $connected;
+  }
+}
 
-You may distribute this code under the same terms as Perl itself.
+# 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;
+}
+
+# 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;
+}
+
+=head1 FURTHER QUESTIONS?
+
+Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
+
+=head1 COPYRIGHT AND LICENSE
+
+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
+
+1;
+