DBIx::Class::Storage::DBI::AutoCast
/;
use mro 'c3';
-use Carp::Clan qw/^DBIx::Class/;
-use Scalar::Util();
-use List::Util();
+use DBIx::Class::Carp;
+use Scalar::Util 'blessed';
+use List::Util 'first';
use Sub::Name();
-use Data::Dumper::Concise();
+use Data::Dumper::Concise 'Dumper';
+use Try::Tiny;
+use namespace::clean;
+
+__PACKAGE__->sql_limit_dialect ('RowCountOrGenericSubQ');
+__PACKAGE__->sql_quote_char ([qw/[ ]/]);
+__PACKAGE__->datetime_parser_type('DateTime::Format::Sybase');
__PACKAGE__->mk_group_accessors('simple' =>
qw/_identity _blob_log_on_update _writer_storage _is_extra_storage
without doing a C<SELECT MAX(col)>. This is done safely in a transaction
(locking the table.) See L</INSERTS WITH PLACEHOLDERS>.
-A recommended L<DBIx::Class::Storage::DBI/connect_info> setting:
+A recommended L<connect_info|DBIx::Class::Storage::DBI/connect_info> setting:
on_connect_call => [['datetime_setup'], ['blob_setup', log_on_update => 0]]
variable.
EOF
- if (not $self->_typeless_placeholders_supported) {
- if ($self->_placeholders_supported) {
+ if (not $self->_use_typeless_placeholders) {
+ if ($self->_use_placeholders) {
$self->auto_cast(1);
}
else {
$self->_rebless;
}
# this is highly unlikely, but we check just in case
- elsif (not $self->_typeless_placeholders_supported) {
+ elsif (not $self->_use_typeless_placeholders) {
$self->auto_cast(1);
}
}
$self->next::method;
}
+# This is only invoked for FreeTDS drivers by ::Storage::DBI::Sybase::FreeTDS
+sub _set_autocommit_stmt {
+ my ($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(@_);
}
if exists $args{log_on_update};
}
-sub _is_lob_type {
- my $self = shift;
- my $type = shift;
- $type && $type =~ /(?:text|image|lob|bytea|binary|memo)/i;
-}
-
sub _is_lob_column {
my ($self, $source, $column) = @_;
sub _prep_for_execute {
my $self = shift;
- my ($op, $extra_bind, $ident, $args) = @_;
+ my ($op, $ident, $args) = @_;
my ($sql, $bind) = $self->next::method (@_);
- my $table = Scalar::Util::blessed($ident) ? $ident->from : $ident;
+ my $table = blessed $ident ? $ident->from : $ident;
my $bind_info = $self->_resolve_column_info(
- $ident, [map $_->[0], @{$bind}]
+ $ident, [map { $_->[0]{dbic_colname} || () } @{$bind}]
);
- my $bound_identity_col = List::Util::first
- { $bind_info->{$_}{is_auto_increment} }
- (keys %$bind_info)
+ my $bound_identity_col =
+ first { $bind_info->{$_}{is_auto_increment} }
+ keys %$bind_info
;
- my $identity_col = Scalar::Util::blessed($ident) &&
- List::Util::first
- { $ident->column_info($_)->{is_auto_increment} }
- $ident->columns
+
+ my $columns_info = blessed $ident && $ident->columns_info;
+
+ my $identity_col =
+ $columns_info &&
+ first { $columns_info->{$_}{is_auto_increment} }
+ keys %$columns_info
;
if (($op eq 'insert' && $bound_identity_col) ||
my $self = shift;
my ($op) = @_;
- my ($rv, $sth, @bind) = $self->dbh_do($self->can('_dbh_execute'), @_);
+ my ($rv, $sth, @bind) = $self->next::method(@_);
if ($op eq 'insert') {
$self->_identity($sth->fetchrow_array);
my $self = shift;
my ($source, $to_insert) = @_;
- my $identity_col = (List::Util::first
- { $source->column_info($_)->{is_auto_increment} }
- $source->columns) || '';
+ my $columns_info = $source->columns_info;
+
+ my $identity_col =
+ (first { $columns_info->{$_}{is_auto_increment} }
+ keys %$columns_info )
+ || '';
# check for empty insert
# INSERT INTO foo DEFAULT VALUES -- does not work with Sybase
my $self = shift;
my ($source, $fields, $where, @rest) = @_;
- my $wantarray = wantarray;
-
my $blob_cols = $self->_remove_blob_cols($source, $fields);
my $table = $source->name;
- my $identity_col = List::Util::first
- { $source->column_info($_)->{is_auto_increment} }
- $source->columns;
+ my $columns_info = $source->columns_info;
+
+ my $identity_col =
+ first { $columns_info->{$_}{is_auto_increment} }
+ keys %$columns_info;
my $is_identity_update = $identity_col && defined $fields->{$identity_col};
my @res;
if (%$fields) {
- if ($wantarray) {
+ if (wantarray) {
@res = $self->next::method(@_);
}
- elsif (defined $wantarray) {
+ elsif (defined wantarray) {
$res[0] = $self->next::method(@_);
}
else {
$guard->commit;
- return $wantarray ? @res : $res[0];
+ return wantarray ? @res : $res[0];
}
sub insert_bulk {
my $self = shift;
my ($source, $cols, $data) = @_;
- my $identity_col = List::Util::first
- { $source->column_info($_)->{is_auto_increment} }
- $source->columns;
+ my $columns_info = $source->columns_info;
+
+ my $identity_col =
+ first { $columns_info->{$_}{is_auto_increment} }
+ keys %$columns_info;
- my $is_identity_insert = (List::Util::first
- { $_ eq $identity_col }
- @{$cols}
- ) ? 1 : 0;
+ my $is_identity_insert = (first { $_ eq $identity_col } @{$cols}) ? 1 : 0;
my @source_columns = $source->columns;
return 0;
});
- eval {
+ my $exception = '';
+ try {
my $bulk = $self->_bulk_storage;
my $guard = $bulk->txn_scope_guard;
}
);
- my @bind = do {
- my $idx = 0;
- map [ $_, $idx++ ], @source_columns;
- };
+ my @bind = map { [ $source_columns[$_] => $_ ] } (0 .. $#source_columns);
$self->_execute_array(
$source, $sth, \@bind, \@source_columns, \@new_data, sub {
);
$bulk->_query_end($sql);
+ } catch {
+ $exception = shift;
};
- my $exception = $@;
DBD::Sybase::set_cslib_cb($orig_cslib_cb);
if ($exception =~ /-Y option/) {
- carp <<"EOF";
-
-Sybase bulk API operation failed due to character set incompatibility, reverting
-to regular array inserts:
-
-*** Try unsetting the LANG environment variable.
+ my $w = 'Sybase bulk API operation failed due to character set incompatibility, '
+ . 'reverting to regular array inserts. Try unsetting the LANG environment variable'
+ ;
+ $w .= "\n$exception" if $self->debug;
+ carp $w;
-$exception
-EOF
$self->_bulk_storage(undef);
unshift @_, $self;
goto \&insert_bulk;
sub _update_blobs {
my ($self, $source, $blob_cols, $where) = @_;
- my @primary_cols = eval { $source->_pri_cols };
- $self->throw_exception("Cannot update TEXT/IMAGE column(s): $@")
- if $@;
+ my @primary_cols = try
+ { $source->_pri_cols }
+ catch {
+ $self->throw_exception("Cannot update TEXT/IMAGE column(s): $_")
+ };
# check if we're updating a single row by PK
my $pk_cols_in_where = 0;
my $table = $source->name;
my %row = %$row;
- my @primary_cols = eval { $source->_pri_cols} ;
- $self->throw_exception("Cannot update TEXT/IMAGE column(s): $@")
- if $@;
+ my @primary_cols = try
+ { $source->_pri_cols }
+ catch {
+ $self->throw_exception("Cannot update TEXT/IMAGE column(s): $_")
+ };
$self->throw_exception('Cannot update TEXT/IMAGE column(s) without primary key values')
if ((grep { defined $row{$_} } @primary_cols) != @primary_cols);
my $sth = $cursor->sth;
if (not $sth) {
-
$self->throw_exception(
"Could not find row in table '$table' for blob update:\n"
- . Data::Dumper::Concise::Dumper (\%where)
+ . (Dumper \%where)
);
}
- eval {
+ try {
do {
$sth->func('CS_GET', 1, 'ct_data_info') or die $sth->errstr;
} while $sth->fetch;
$sth->func($blob, length($blob), 'ct_send_data') or die $sth->errstr;
$sth->func('ct_finish_send') or die $sth->errstr;
- };
- my $exception = $@;
- $sth->finish if $sth;
- if ($exception) {
+ }
+ catch {
if ($self->using_freetds) {
$self->throw_exception (
- 'TEXT/IMAGE operation failed, probably because you are using FreeTDS: '
- . $exception
+ "TEXT/IMAGE operation failed, probably because you are using FreeTDS: $_"
);
- } else {
- $self->throw_exception($exception);
+ }
+ else {
+ $self->throw_exception($_);
}
}
+ finally {
+ $sth->finish if $sth;
+ };
}
}
on_connect_call => 'datetime_setup'
-In L<DBIx::Class::Storage::DBI/connect_info> to set:
+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
$dbh->do('set dateformat mdy'); # input fmt: 08/13/1979 18:08:55.080
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
-{
- my $old_dbd_warned = 0;
+sub connect_call_datetime_setup {
+ my $self = shift;
+ my $dbh = $self->_get_dbh;
- 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!";
- $old_dbd_warned = 1;
- }
+ if ($dbh->can('syb_date_fmt')) {
+ # amazingly, this works with FreeTDS
+ $dbh->syb_date_fmt('ISO_strict');
+ }
+ else {
+ carp_once
+ 'Your DBD::Sybase is too old to support '
+ .'DBIx::Class::InflateColumn::DateTime, please upgrade!';
$dbh->do('SET DATEFORMAT mdy');
-
1;
}
}
-sub datetime_parser_type { "DateTime::Format::Sybase" }
-
-# ->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, placeholers will work just as they do with the Sybase
+In other configurations, placeholders will work just as they do with the Sybase
Open Client libraries.
Inserts or updates of TEXT/IMAGE columns will B<NOT> work with FreeTDS.
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>.
instead.
However, the C<LongReadLen> you pass in
-L<DBIx::Class::Storage::DBI/connect_info> is used to execute the equivalent
-C<SET TEXTSIZE> command on connection.
+L<connect_info|DBIx::Class::Storage::DBI/connect_info> is used to execute the
+equivalent C<SET TEXTSIZE> command on connection.
-See L</connect_call_blob_setup> for a L<DBIx::Class::Storage::DBI/connect_info>
-setting you need to work with C<IMAGE> columns.
+See L</connect_call_blob_setup> for a
+L<connect_info|DBIx::Class::Storage::DBI/connect_info> setting you need to work
+with C<IMAGE> columns.
=head1 BULK API
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, with possible SQLA::Limit support.
-
-=item *
-
Blob update with a LIKE query on a blob, without invalidating the WHERE condition.
=item *
=head1 AUTHOR
-See L<DBIx::Class/CONTRIBUTORS>.
+See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
=head1 LICENSE
projects / dbsrgits/DBIx-Class.git / blobdiff