/usr/share/perl5/DBIx/Class/Storage/DBI/SQLAnywhere.pm is in libdbix-class-perl 0.082840-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 | package DBIx::Class::Storage::DBI::SQLAnywhere;
use strict;
use warnings;
use base qw/DBIx::Class::Storage::DBI::UniqueIdentifier/;
use mro 'c3';
use List::Util 'first';
use Try::Tiny;
use namespace::clean;
__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 SQL Anywhere
=head1 DESCRIPTION
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<connect_info|DBIx::Class::Storage::DBI/connect_info> settings:
on_connect_call => 'datetime_setup'
=head1 METHODS
=cut
sub last_insert_id { shift->_identity }
sub _prefetch_autovalues {
my $self = shift;
my ($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 = $pk_col;
last;
}
}
}
if ($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) = try {
$dbh->selectrow_array("SELECT GET_IDENTITY('$table_name')")
};
if (defined $identity) {
$values->{$identity_col} = $identity;
$self->_identity($identity);
}
}
return $values;
}
sub _uuid_to_str {
my ($self, $data) = @_;
$data = unpack 'H*', $data;
for my $pos (8, 13, 18, 23) {
substr($data, $pos, 0) = '-';
}
return $data;
}
# 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];
next if ref $selected;
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 @row;
}
# this sub stolen from MSSQL
sub build_datetime_parser {
my $self = shift;
my $type = "DateTime::Format::Strptime";
try {
eval "require ${type}"
}
catch {
$self->throw_exception("Couldn't load ${type}: $_");
};
return $type->new( pattern => '%Y-%m-%d %H:%M:%S.%6N' );
}
=head2 connect_call_datetime_setup
Used as:
on_connect_call => 'datetime_setup'
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
second precision. The full precision is used.
The C<DATE> data type supposedly stores hours and minutes too, according to the
documentation, but I could not get that to work. It seems to only store the
date.
You will need the L<DateTime::Format::Strptime> module for inflation to work.
=cut
sub connect_call_datetime_setup {
my $self = shift;
$self->_do_query(
"set temporary option timestamp_format = 'yyyy-mm-dd hh:mm:ss.ssssss'"
);
$self->_do_query(
"set temporary option date_format = 'yyyy-mm-dd hh:mm:ss.ssssss'"
);
}
sub _exec_svp_begin {
my ($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 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>.
|