1 package DBIx::Class::Storage::DBI::SQLAnywhere;
5 use base qw/DBIx::Class::Storage::DBI::UniqueIdentifier/;
7 use List::Util 'first';
11 __PACKAGE__->mk_group_accessors(simple => qw/_identity/);
12 __PACKAGE__->sql_limit_dialect ('RowNumberOver');
16 DBIx::Class::Storage::DBI::SQLAnywhere - Driver for Sybase SQL Anywhere
20 This class implements autoincrements for Sybase SQL Anywhere and provides
21 L<DBIx::Class::InflateColumn::DateTime> support.
23 You need the C<DBD::SQLAnywhere> driver that comes with the SQL Anywhere
24 distribution, B<NOT> the one on CPAN. It is usually under a path such as:
26 /opt/sqlanywhere11/sdk/perl
28 Recommended L<connect_info|DBIx::Class::Storage::DBI/connect_info> settings:
30 on_connect_call => 'datetime_setup'
36 sub last_insert_id { shift->_identity }
38 sub _new_uuid { 'UUIDTOSTR(NEWID())' }
40 sub _prefetch_autovalues {
42 my ($source, $to_insert) = @_;
44 my $values = $self->next::method(@_);
46 my $colinfo = $source->columns_info;
49 first { $colinfo->{$_}{is_auto_increment} } keys %$colinfo;
51 # user might have an identity PK without is_auto_increment
52 if (not $identity_col) {
53 foreach my $pk_col ($source->primary_columns) {
55 ! exists $to_insert->{$pk_col}
57 $colinfo->{$pk_col}{data_type}
59 $colinfo->{$pk_col}{data_type} !~ /^uniqueidentifier/i
61 $identity_col = $pk_col;
67 if ($identity_col && (not exists $to_insert->{$identity_col})) {
68 my $dbh = $self->_get_dbh;
69 my $table_name = $source->from;
70 $table_name = $$table_name if ref $table_name;
72 my ($identity) = try {
73 $dbh->selectrow_array("SELECT GET_IDENTITY('$table_name')")
76 if (defined $identity) {
77 $values->{$identity_col} = $identity;
78 $self->_identity($identity);
85 # convert UUIDs to strings in selects
88 my ($ident, $select) = @_;
90 my $col_info = $self->_resolve_column_info($ident);
92 for my $select_idx (0..$#$select) {
93 my $selected = $select->[$select_idx];
95 next if ref $selected;
97 my $data_type = $col_info->{$selected}{data_type};
99 if ($data_type && lc($data_type) eq 'uniqueidentifier') {
100 $select->[$select_idx] = { UUIDTOSTR => $selected };
104 return $self->next::method(@_);
107 # this sub stolen from MSSQL
109 sub build_datetime_parser {
111 my $type = "DateTime::Format::Strptime";
113 eval "require ${type}"
116 $self->throw_exception("Couldn't load ${type}: $_");
119 return $type->new( pattern => '%Y-%m-%d %H:%M:%S.%6N' );
122 =head2 connect_call_datetime_setup
126 on_connect_call => 'datetime_setup'
128 In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the date and
129 timestamp formats (as temporary options for the session) for use with
130 L<DBIx::Class::InflateColumn::DateTime>.
132 The C<TIMESTAMP> data type supports up to 6 digits after the decimal point for
133 second precision. The full precision is used.
135 The C<DATE> data type supposedly stores hours and minutes too, according to the
136 documentation, but I could not get that to work. It seems to only store the
139 You will need the L<DateTime::Format::Strptime> module for inflation to work.
143 sub connect_call_datetime_setup {
147 "set temporary option timestamp_format = 'yyyy-mm-dd hh:mm:ss.ssssss'"
150 "set temporary option date_format = 'yyyy-mm-dd hh:mm:ss.ssssss'"
155 my ($self, $name) = @_;
157 $self->_get_dbh->do("SAVEPOINT $name");
160 # can't release savepoints that have been rolled back
161 sub _svp_release { 1 }
164 my ($self, $name) = @_;
166 $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name")
171 =head1 MAXIMUM CURSORS
173 A L<DBIx::Class> application can use a lot of cursors, due to the usage of
174 L<prepare_cached|DBI/prepare_cached>.
176 The default cursor maximum is C<50>, which can be a bit too low. This limit can
177 be turned off (or increased) by the DBA by executing:
179 set option max_statement_count = 0
180 set option max_cursor_count = 0
186 See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>.
190 You may distribute this code under the same terms as Perl itself.