use strict;
use warnings;
-use base qw/DBIx::Class::Storage::DBI/;
+use base qw/DBIx::Class::Storage::DBI::UniqueIdentifier/;
use mro 'c3';
-use List::Util ();
+use List::Util 'first';
+use Try::Tiny;
+use namespace::clean;
-__PACKAGE__->mk_group_accessors(simple => qw/
- _identity
-/);
+__PACKAGE__->mk_group_accessors(simple => qw/_identity/);
+__PACKAGE__->sql_limit_dialect ('RowNumberOver');
+__PACKAGE__->sql_quote_char ('"');
+
+__PACKAGE__->new_guid('UUIDTOSTR(NEWID())');
+
+# default to the UUID decoding cursor, overridable by the user
+__PACKAGE__->cursor_class('DBIx::Class::Storage::DBI::SQLAnywhere::Cursor');
=head1 NAME
-DBIx::Class::Storage::DBI::SQLAnywhere - Driver for Sybase SQL Anywhere
+DBIx::Class::Storage::DBI::SQLAnywhere - Driver for SQL Anywhere
=head1 DESCRIPTION
-This class implements autoincrements for Sybase SQL Anywhere, selects the
-RowNumberOver limit implementation and provides
-L<DBIx::Class::InflateColumn::DateTime> support.
+This class implements autoincrements for SQL Anywhere and provides
+L<DBIx::Class::InflateColumn::DateTime> support and support for the
+C<uniqueidentifier> type (via
+L<DBIx::Class::Storage::DBI::SQLAnywhere::Cursor>.)
You need the C<DBD::SQLAnywhere> driver that comes with the SQL Anywhere
distribution, B<NOT> the one on CPAN. It is usually under a path such as:
/opt/sqlanywhere11/sdk/perl
-Recommended L<DBIx::Class::Storage::DBI/connect_info> settings:
+Recommended L<connect_info|DBIx::Class::Storage::DBI/connect_info> settings:
on_connect_call => 'datetime_setup'
sub last_insert_id { shift->_identity }
-sub insert {
+sub _prefetch_autovalues {
my $self = shift;
- my ($source, $to_insert) = @_;
-
- my $supplied_col_info = $self->_resolve_column_info($source, [keys %$to_insert]);
-
- my $is_identity_insert = (List::Util::first { $_->{is_auto_increment} } (values %$supplied_col_info) )
- ? 1
- : 0;
-
- my $identity_col = List::Util::first {
- $source->column_info($_)->{is_auto_increment}
- } $source->columns;
+ my ($source, $colinfo, $to_insert) = @_;
+
+ my $values = $self->next::method(@_);
+
+ my $identity_col =
+ first { $colinfo->{$_}{is_auto_increment} } keys %$colinfo;
+
+# user might have an identity PK without is_auto_increment
+#
+# FIXME we probably should not have supported the above, see what
+# does it take to move away from it
+ if (not $identity_col) {
+ foreach my $pk_col ($source->primary_columns) {
+ if (
+ ! exists $to_insert->{$pk_col}
+ and
+ $colinfo->{$pk_col}{data_type}
+ and
+ $colinfo->{$pk_col}{data_type} !~ /^uniqueidentifier/i
+ ) {
+ $identity_col = $pk_col;
+ last;
+ }
+ }
+ }
- if ((not $is_identity_insert) && $identity_col) {
+ if ($identity_col && (not exists $to_insert->{$identity_col})) {
my $dbh = $self->_get_dbh;
my $table_name = $source->from;
$table_name = $$table_name if ref $table_name;
- my ($identity) = $dbh->selectrow_array("SELECT GET_IDENTITY('$table_name')");
+ my ($identity) = try {
+ $dbh->selectrow_array("SELECT GET_IDENTITY('$table_name')")
+ };
+
+ if (defined $identity) {
+ $values->{$identity_col} = $identity;
+ $self->_identity($identity);
+ }
+ }
- $to_insert->{$identity_col} = $identity;
+ return $values;
+}
- $self->_identity($identity);
+sub _uuid_to_str {
+ my ($self, $data) = @_;
+
+ $data = unpack 'H*', $data;
+
+ for my $pos (8, 13, 18, 23) {
+ substr($data, $pos, 0) = '-';
}
- return $self->next::method(@_);
+ return $data;
}
-# this sub stolen from DB2
+# select_single does not invoke a cursor object at all, hence UUID decoding happens
+# here if the proper cursor class is set
+sub select_single {
+ my $self = shift;
+
+ my @row = $self->next::method(@_);
+
+ return @row
+ unless $self->cursor_class->isa('DBIx::Class::Storage::DBI::SQLAnywhere::Cursor');
+
+ my ($ident, $select) = @_;
+
+ my $col_info = $self->_resolve_column_info($ident);
+
+ for my $select_idx (0..$#$select) {
+ my $selected = $select->[$select_idx];
-sub _sql_maker_opts {
- my ( $self, $opts ) = @_;
+ next if ref $selected;
- if ( $opts ) {
- $self->{_sql_maker_opts} = { %$opts };
+ my $data_type = $col_info->{$selected}{data_type}
+ or next;
+
+ if ($self->_is_guid_type($data_type)) {
+ my $returned = $row[$select_idx];
+
+ if (length $returned == 16) {
+ $row[$select_idx] = $self->_uuid_to_str($returned);
+ }
+ }
}
- return { limit_dialect => 'RowNumberOver', %{$self->{_sql_maker_opts}||{}} };
+ return @row;
}
# this sub stolen from MSSQL
sub build_datetime_parser {
my $self = shift;
my $type = "DateTime::Format::Strptime";
- eval "use ${type}";
- $self->throw_exception("Couldn't load ${type}: $@") if $@;
+ try {
+ eval "require ${type}"
+ }
+ catch {
+ $self->throw_exception("Couldn't load ${type}: $_");
+ };
+
return $type->new( pattern => '%Y-%m-%d %H:%M:%S.%6N' );
}
on_connect_call => 'datetime_setup'
-In L<DBIx::Class::Storage::DBI/connect_info> to set the date and timestamp
-formats (as temporary options for the session) for use with
+In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the date and
+timestamp formats (as temporary options for the session) for use with
L<DBIx::Class::InflateColumn::DateTime>.
The C<TIMESTAMP> data type supports up to 6 digits after the decimal point for
);
}
+sub _exec_svp_begin {
+ my ($self, $name) = @_;
+
+ $self->_dbh->do("SAVEPOINT $name");
+}
+
+# can't release savepoints that have been rolled back
+sub _exec_svp_release { 1 }
+
+sub _exec_svp_rollback {
+ my ($self, $name) = @_;
+
+ $self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
+}
+
1;
+=head1 MAXIMUM CURSORS
+
+A L<DBIx::Class> application can use a lot of cursors, due to the usage of
+L<prepare_cached|DBI/prepare_cached>.
+
+The default cursor maximum is C<50>, which can be a bit too low. This limit can
+be turned off (or increased) by the DBA by executing:
+
+ set option max_statement_count = 0
+ set option max_cursor_count = 0
+
+Highly recommended.
+
=head1 AUTHOR
See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
projects / dbsrgits/DBIx-Class.git / blobdiff