$self->next::method;
}
+# This is only invoked for FreeTDS drivers by ::Storage::DBI::Sybase::FreeTDS
+sub _set_autocommit_stmt {
+ my ($self, $on) = @_;
+
+ return 'SET CHAINED ' . ($on ? 'OFF' : 'ON');
+}
+
# Set up session settings for Sybase databases for the connection.
#
# Make sure we have CHAINED mode turned on if AutoCommit is off in non-FreeTDS
# DBD::Sybase (since we don't know how DBD::Sybase was compiled.) If however
# we're using FreeTDS, CHAINED mode turns on an implicit transaction which we
# only want when AutoCommit is off.
-#
-# Also SET TEXTSIZE for FreeTDS because LongReadLen doesn't work.
sub _run_connection_actions {
my $self = shift;
if ($self->_is_bulk_storage) {
-# this should be cleared on every reconnect
+ # this should be cleared on every reconnect
$self->_began_bulk_work(0);
return;
}
- if (not $self->using_freetds) {
- $self->_dbh->{syb_chained_txn} = 1;
- } else {
- # based on LongReadLen in connect_info
- $self->set_textsize;
-
- if ($self->_dbh_autocommit) {
- $self->_dbh->do('SET CHAINED OFF');
- } else {
- $self->_dbh->do('SET CHAINED ON');
- }
- }
+ $self->_dbh->{syb_chained_txn} = 1
+ unless $self->using_freetds;
$self->next::method(@_);
}
On connection for use with L<DBIx::Class::InflateColumn::DateTime>, using
L<DateTime::Format::Sybase>, which you will need to install.
-This works for both C<DATETIME> and C<SMALLDATETIME> columns, although
+This works for both C<DATETIME> and C<SMALLDATETIME> columns, note that
C<SMALLDATETIME> columns only have minute precision.
=cut
}
-# ->begin_work and such have no effect with FreeTDS but we run them anyway to
-# let the DBD keep any state it needs to.
-#
-# If they ever do start working, the extra statements will do no harm (because
-# Sybase supports nested transactions.)
-
-sub _dbh_begin_work {
+sub _exec_txn_begin {
my $self = shift;
# bulkLogin=1 connections are always in a transaction, and can only call BEGIN
$self->next::method(@_);
- if ($self->using_freetds) {
- $self->_get_dbh->do('BEGIN TRAN');
- }
-
$self->_began_bulk_work(1) if $self->_is_bulk_storage;
}
-sub _dbh_commit {
- my $self = shift;
- if ($self->using_freetds) {
- $self->_dbh->do('COMMIT');
- }
- return $self->next::method(@_);
-}
-
-sub _dbh_rollback {
- my $self = shift;
- if ($self->using_freetds) {
- $self->_dbh->do('ROLLBACK');
- }
- return $self->next::method(@_);
-}
-
# savepoint support using ASE syntax
-sub _svp_begin {
+sub _exec_svp_begin {
my ($self, $name) = @_;
- $self->_get_dbh->do("SAVE TRANSACTION $name");
+ $self->_dbh->do("SAVE TRANSACTION $name");
}
# A new SAVE TRANSACTION with the same name releases the previous one.
-sub _svp_release { 1 }
+sub _exec_svp_release { 1 }
-sub _svp_rollback {
+sub _exec_svp_rollback {
my ($self, $name) = @_;
- $self->_get_dbh->do("ROLLBACK TRANSACTION $name");
+ $self->_dbh->do("ROLLBACK TRANSACTION $name");
}
1;
=head1 Schema::Loader Support
As of version C<0.05000>, L<DBIx::Class::Schema::Loader> should work well with
-most (if not all) versions of Sybase ASE.
+most versions of Sybase ASE.
=head1 FreeTDS
perl -MDBI -le 'my $dbh = DBI->connect($dsn, $user, $pass); print $dbh->{syb_oc_version}'
-Some versions of the libraries involved will not support placeholders, in which
-case the storage will be reblessed to
+It is recommended to set C<tds version> for your ASE server to C<5.0> in
+C</etc/freetds/freetds.conf>.
+
+Some versions or configurations of the libraries involved will not support
+placeholders, in which case the storage will be reblessed to
L<DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars>.
In some configurations, placeholders will work but will throw implicit type
conversion errors for anything that's not expecting a string. In such a case,
the C<auto_cast> option from L<DBIx::Class::Storage::DBI::AutoCast> is
automatically set, which you may enable on connection with
-L<DBIx::Class::Storage::DBI::AutoCast/connect_call_set_auto_cast>. The type info
-for the C<CAST>s is taken from the L<DBIx::Class::ResultSource/data_type>
-definitions in your Result classes, and are mapped to a Sybase type (if it isn't
-already) using a mapping based on L<SQL::Translator>.
+L<connect_call_set_auto_cast|DBIx::Class::Storage::DBI::AutoCast/connect_call_set_auto_cast>.
+The type info for the C<CAST>s is taken from the
+L<DBIx::Class::ResultSource/data_type> definitions in your Result classes, and
+are mapped to a Sybase type (if it isn't already) using a mapping based on
+L<SQL::Translator>.
In other configurations, placeholders will work just as they do with the Sybase
Open Client libraries.
have active cursors when doing an insert.
When using C<DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars> transactions
-are disabled, as there are no concurrency issues with C<SELECT @@IDENTITY> as
-it's a session variable.
+are unnecessary and not used, as there are no concurrency issues with C<SELECT
+@@IDENTITY> which is a session variable.
=head1 TRANSACTIONS
-Due to limitations of the TDS protocol, L<DBD::Sybase>, or both, you cannot
-begin a transaction while there are active cursors, nor can you use multiple
-active cursors within a transaction. An active cursor is, for example, a
+Due to limitations of the TDS protocol and L<DBD::Sybase>, you cannot begin a
+transaction while there are active cursors, nor can you use multiple active
+cursors within a transaction. An active cursor is, for example, a
L<ResultSet|DBIx::Class::ResultSet> that has been executed using C<next> or
C<first> but has not been exhausted or L<reset|DBIx::Class::ResultSet/reset>.
B<NOTE:> the L<add_columns|DBIx::Class::ResultSource/add_columns>
calls in your C<Result> classes B<must> list columns in database order for this
to work. Also, you may have to unset the C<LANG> environment variable before
-loading your app, if it doesn't match the character set of your database.
+loading your app, as C<BCP -Y> is not yet supported in DBD::Sybase .
When inserting IMAGE columns using this method, you'll need to use
L</connect_call_blob_setup> as well.
data_type => undef,
default_value => \'getdate()',
is_nullable => 0,
+ inflate_datetime => 1,
}
The C<data_type> must exist and must be C<undef>. Then empty inserts will work
=item *
-Adaptive Server Anywhere (ASA) support
-
-=item *
-
Blob update with a LIKE query on a blob, without invalidating the WHERE condition.
=item *
projects / dbsrgits/DBIx-Class.git / blobdiff