/usr/share/perl5/DBIx/Class/Storage/DBI/Firebird/Common.pm is in libdbix-class-perl 0.082840-3.
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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 | package DBIx::Class::Storage::DBI::Firebird::Common;
use strict;
use warnings;
use base qw/DBIx::Class::Storage::DBI/;
use mro 'c3';
use List::Util 'first';
use namespace::clean;
=head1 NAME
DBIx::Class::Storage::DBI::Firebird::Common - Driver Base Class for the Firebird RDBMS
=head1 DESCRIPTION
This class implements autoincrements for Firebird using C<RETURNING> as well as
L<auto_nextval|DBIx::Class::ResultSource/auto_nextval>, savepoints and server
version detection.
=cut
# set default
__PACKAGE__->_use_insert_returning (1);
__PACKAGE__->sql_limit_dialect ('FirstSkip');
__PACKAGE__->sql_quote_char ('"');
__PACKAGE__->datetime_parser_type(
'DBIx::Class::Storage::DBI::InterBase::DateTime::Format'
);
sub sqlt_type {
return 'Firebird';
}
sub _sequence_fetch {
my ($self, $nextval, $sequence) = @_;
$self->throw_exception("Can only fetch 'nextval' for a sequence")
if $nextval !~ /^nextval$/i;
$self->throw_exception('No sequence to fetch') unless $sequence;
my ($val) = $self->_get_dbh->selectrow_array(sprintf
'SELECT GEN_ID(%s, 1) FROM rdb$database',
$self->sql_maker->_quote($sequence)
);
return $val;
}
sub _dbh_get_autoinc_seq {
my ($self, $dbh, $source, $col) = @_;
my $table_name = $source->from;
$table_name = $$table_name if ref $table_name;
$table_name = $self->sql_maker->quote_char ? $table_name : uc($table_name);
local $dbh->{LongReadLen} = 100000;
local $dbh->{LongTruncOk} = 1;
my $sth = $dbh->prepare(<<'EOF');
SELECT t.rdb$trigger_source
FROM rdb$triggers t
WHERE t.rdb$relation_name = ?
AND t.rdb$system_flag = 0 -- user defined
AND t.rdb$trigger_type = 1 -- BEFORE INSERT
EOF
$sth->execute($table_name);
while (my ($trigger) = $sth->fetchrow_array) {
my @trig_cols = map
{ /^"([^"]+)/ ? $1 : uc($_) }
$trigger =~ /new\.("?\w+"?)/ig
;
my ($quoted, $generator) = $trigger =~
/(?:gen_id\s* \( \s* |next \s* value \s* for \s*)(")?(\w+)/ix;
if ($generator) {
$generator = uc $generator unless $quoted;
return $generator
if first {
$self->sql_maker->quote_char ? ($_ eq $col) : (uc($_) eq uc($col))
} @trig_cols;
}
}
return undef;
}
sub _exec_svp_begin {
my ($self, $name) = @_;
$self->_dbh->do("SAVEPOINT $name");
}
sub _exec_svp_release {
my ($self, $name) = @_;
$self->_dbh->do("RELEASE SAVEPOINT $name");
}
sub _exec_svp_rollback {
my ($self, $name) = @_;
$self->_dbh->do("ROLLBACK TO SAVEPOINT $name")
}
# http://www.firebirdfaq.org/faq223/
sub _get_server_version {
my $self = shift;
return $self->_get_dbh->selectrow_array(q{
SELECT rdb$get_context('SYSTEM', 'ENGINE_VERSION') FROM rdb$database
});
}
package # hide from PAUSE
DBIx::Class::Storage::DBI::InterBase::DateTime::Format;
my $timestamp_format = '%Y-%m-%d %H:%M:%S.%4N'; # %F %T
my $date_format = '%Y-%m-%d';
my ($timestamp_parser, $date_parser);
sub parse_datetime {
shift;
require DateTime::Format::Strptime;
$timestamp_parser ||= DateTime::Format::Strptime->new(
pattern => $timestamp_format,
on_error => 'croak',
);
return $timestamp_parser->parse_datetime(shift);
}
sub format_datetime {
shift;
require DateTime::Format::Strptime;
$timestamp_parser ||= DateTime::Format::Strptime->new(
pattern => $timestamp_format,
on_error => 'croak',
);
return $timestamp_parser->format_datetime(shift);
}
sub parse_date {
shift;
require DateTime::Format::Strptime;
$date_parser ||= DateTime::Format::Strptime->new(
pattern => $date_format,
on_error => 'croak',
);
return $date_parser->parse_datetime(shift);
}
sub format_date {
shift;
require DateTime::Format::Strptime;
$date_parser ||= DateTime::Format::Strptime->new(
pattern => $date_format,
on_error => 'croak',
);
return $date_parser->format_datetime(shift);
}
=head1 CAVEATS
=over 4
=item *
C<last_insert_id> support by default only works for Firebird versions 2 or
greater, L<auto_nextval|DBIx::Class::ResultSource/auto_nextval> however should
work with earlier versions.
=back
=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>.
=cut
1;
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