use strict;
use warnings;
-use base qw/DBIx::Class::Storage::DBI::MultiColumnIn/;
+use base qw/
+ DBIx::Class::Storage::DBI::MultiColumnIn
+/;
use mro 'c3';
use DBD::Pg qw(:pg_types);
+use Scope::Guard ();
+use Context::Preserve ();
# Ask for a DBD::Pg with array support
-warn "DBD::Pg 2.9.2 or greater is strongly recommended\n"
+warn __PACKAGE__.": DBD::Pg 2.9.2 or greater is strongly recommended\n"
if ($DBD::Pg::VERSION < 2.009002); # pg uses (used?) version::qv()
+sub can_insert_returning {
+ # FIXME !!!
+ # pg before 8.2 doesn't support this, need to check version
+ return 1;
+}
+
sub with_deferred_fk_checks {
my ($self, $sub) = @_;
- $self->_get_dbh->do('SET CONSTRAINTS ALL DEFERRED');
- $sub->();
+ my $txn_scope_guard = $self->txn_scope_guard;
+
+ $self->_do_query('SET CONSTRAINTS ALL DEFERRED');
+
+ my $sg = Scope::Guard->new(sub {
+ $self->_do_query('SET CONSTRAINTS ALL IMMEDIATE');
+ });
+
+ return Context::Preserve::preserve_context(sub { $sub->() },
+ after => sub { $txn_scope_guard->commit });
}
sub last_insert_id {
for my $col (@cols) {
my $seq = ( $source->column_info($col)->{sequence} ||= $self->dbh_do('_dbh_get_autoinc_seq', $source, $col) )
- or $self->throw_exception( "could not determine sequence for "
- . $source->name
- . ".$col, please consider adding a "
- . "schema-qualified sequence to its column info"
- );
+ or $self->throw_exception( sprintf(
+ 'could not determine sequence for column %s.%s, please consider adding a schema-qualified sequence to its column info',
+ $source->name,
+ $col,
+ ));
- push @values, $self->_dbh_last_insert_id ($self->_dbh, $seq);
+ push @values, $self->_dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq});
}
return @values;
}
-# there seems to be absolutely no reason to have this as a separate method,
-# but leaving intact in case someone is already overriding it
-sub _dbh_last_insert_id {
- my ($self, $dbh, $seq) = @_;
- $dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq});
-}
+sub _sequence_fetch {
+ my ($self, $function, $sequence) = @_;
+ $self->throw_exception('No sequence to fetch') unless $sequence;
+
+ my ($val) = $self->_get_dbh->selectrow_array(
+ sprintf "select $function('%s')",
+ $sequence
+ );
+
+ return $val;
+}
sub _dbh_get_autoinc_seq {
my ($self, $dbh, $source, $col) = @_;
( $schema, $table ) = ( $1, $2 );
}
-### XXX This is unsafe in DBD::Pg 2.15.1, it can disconnect for some reason
-###
- # use DBD::Pg to fetch the column info if it is recent enough to
- # work. otherwise, use custom SQL
-# my $seq_expr = $DBD::Pg::VERSION >= 2.015001
-# ? eval{ $dbh->column_info(undef,$schema,$table,$col)->fetchrow_hashref->{COLUMN_DEF} }
-# : $self->_dbh_get_column_default( $dbh, $schema, $table, $col );
-
+ # get the column default using a Postgres-specific pg_catalog query
my $seq_expr = $self->_dbh_get_column_default( $dbh, $schema, $table, $col );
# if no default value is set on the column, or if we can't parse the
# default value as a sequence, throw.
- unless ( defined $seq_expr and $seq_expr =~ /^nextval\(+'([^']+)'::(?:text|regclass)\)/i ){
+ unless ( defined $seq_expr and $seq_expr =~ /^nextval\(+'([^']+)'::(?:text|regclass)\)/i ) {
$seq_expr = '' unless defined $seq_expr;
$schema = "$schema." if defined $schema && length $schema;
- $self->throw_exception( "no sequence found for $schema$table.$col, check table definition, "
- . "or explicitly set the 'sequence' for this column in the "
- . $source->source_name
- . " class"
- );
+ $self->throw_exception( sprintf (
+ 'no sequence found for %s%s.%s, check the RDBMS table definition or explicitly set the '.
+ "'sequence' for this column in %s",
+ $schema ? "$schema." : '',
+ $table,
+ $col,
+ $source->source_name,
+ ));
}
return $1;
}
}
-sub _sequence_fetch {
- my ( $self, $type, $seq ) = @_;
- my ($id) = $self->_get_dbh->selectrow_array("SELECT nextval('${seq}')");
- return $id;
-}
-
sub _svp_begin {
my ($self, $name) = @_;
=head1 SYNOPSIS
- # In your table classes
- __PACKAGE__->load_components(qw/PK::Auto Core/);
+ # In your result (table) classes
+ use base 'DBIx::Class::Core';
__PACKAGE__->set_primary_key('id');
__PACKAGE__->sequence('mysequence');