use strict;
use warnings;
-use base qw/DBIx::Class::Storage::DBI::MultiColumnIn/;
-use mro 'c3';
-
-use DBD::Pg qw(:pg_types);
-
-# Ask for a DBD::Pg with array support
-warn "DBD::Pg 2.9.2 or greater is strongly recommended\n"
- if ($DBD::Pg::VERSION < 2.009002); # pg uses (used?) version::qv()
+use base qw/DBIx::Class::Storage::DBI/;
+
+use Scope::Guard ();
+use Scalar::Util 'weaken';
+use Context::Preserve 'preserve_context';
+use DBIx::Class::Carp;
+use Try::Tiny;
+use namespace::clean;
+
+__PACKAGE__->sql_limit_dialect ('LimitOffset');
+__PACKAGE__->sql_quote_char ('"');
+__PACKAGE__->datetime_parser_type ('DateTime::Format::Pg');
+__PACKAGE__->_use_multicolumn_in (1);
+
+sub _determine_supports_insert_returning {
+ return shift->_server_info->{normalized_dbms_version} >= 8.002
+ ? 1
+ : 0
+ ;
+}
sub with_deferred_fk_checks {
my ($self, $sub) = @_;
- $self->_get_dbh->do('SET CONSTRAINTS ALL DEFERRED');
- $sub->();
+ my $txn_scope_guard = $self->txn_scope_guard;
+
+ $self->_do_query('SET CONSTRAINTS ALL DEFERRED');
+
+ weaken($self);
+ return preserve_context {
+ my $sg = Scope::Guard->new(sub {
+ $self->_do_query('SET CONSTRAINTS ALL IMMEDIATE');
+ });
+ $sub->()
+ } after => sub { $txn_scope_guard->commit };
}
+# only used when INSERT ... RETURNING is disabled
sub last_insert_id {
- my ($self,$source,$col) = @_;
- 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"
- );
-
- $self->_dbh_last_insert_id ($self->_dbh, $seq);
-}
+ my ($self,$source,@cols) = @_;
+
+ my @values;
+
+ my $col_info = $source->columns_info(\@cols);
+
+ for my $col (@cols) {
+ my $seq = ( $col_info->{$col}{sequence} ||= $self->dbh_do('_dbh_get_autoinc_seq', $source, $col) )
+ 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(undef, undef, undef, undef, {sequence => $seq});
+ }
-# there seems to be absolutely no reason to have this as a separate method,
-# but leaving intact in case someone is already overriding it
-sub _dbh_last_insert_id {
- my ($self, $dbh, $seq) = @_;
- $dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq});
+ return @values;
}
+sub _sequence_fetch {
+ my ($self, $function, $sequence) = @_;
+
+ $self->throw_exception('No sequence to fetch') unless $sequence;
+
+ my ($val) = $self->_get_dbh->selectrow_array(
+ sprintf ("select %s('%s')", $function, (ref $sequence eq 'SCALAR') ? $$sequence : $sequence)
+ );
+
+ return $val;
+}
sub _dbh_get_autoinc_seq {
my ($self, $dbh, $source, $col) = @_;
( $schema, $table ) = ( $1, $2 );
}
+ # 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 ) {
+ $seq_expr = '' unless defined $seq_expr;
+ $schema = "$schema." if defined $schema && length $schema;
+ $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; # exception thrown unless match is made above
+}
+
+# custom method for fetching column default, since column_info has a
+# bug with older versions of DBD::Pg
+sub _dbh_get_column_default {
+ my ( $self, $dbh, $schema, $table, $col ) = @_;
+
# Build and execute a query into the pg_catalog to find the Pg
# expression for the default value for this column in this table.
# If the table name is schema-qualified, query using that specific
EOS
- # 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 ){
- $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"
- );
- }
-
- return $1;
+ return $seq_expr;
}
-sub get_autoinc_seq {
- my ($self,$source,$col) = @_;
-
-}
sub sqlt_type {
return 'PostgreSQL';
}
-sub datetime_parser_type { return "DateTime::Format::Pg"; }
-
sub bind_attribute_by_data_type {
my ($self,$data_type) = @_;
- my $bind_attributes = {
- bytea => { pg_type => DBD::Pg::PG_BYTEA },
- blob => { pg_type => DBD::Pg::PG_BYTEA },
- };
-
- if( defined $bind_attributes->{$data_type} ) {
- return $bind_attributes->{$data_type};
+ if ($self->_is_binary_lob_type($data_type)) {
+ # this is a hot-ish codepath, use an escape flag to minimize
+ # amount of function/method calls
+ # additionally version.pm is cock, and memleaks on multiple
+ # ->VERSION calls
+ # the flag is stored in the DBD namespace, so that Class::Unload
+ # will work (unlikely, but still)
+ unless ($DBD::Pg::__DBIC_DBD_VERSION_CHECK_DONE__) {
+ if ($self->_server_info->{normalized_dbms_version} >= 9.0) {
+ try { DBD::Pg->VERSION('2.17.2'); 1 } or carp (
+ __PACKAGE__.': BYTEA columns are known to not work on Pg >= 9.0 with DBD::Pg < 2.17.2'
+ );
+ }
+ elsif (not try { DBD::Pg->VERSION('2.9.2'); 1 } ) { carp (
+ __PACKAGE__.': DBD::Pg 2.9.2 or greater is strongly recommended for BYTEA column support'
+ )}
+
+ $DBD::Pg::__DBIC_DBD_VERSION_CHECK_DONE__ = 1;
+ }
+
+ return { pg_type => DBD::Pg::PG_BYTEA() };
}
else {
- return;
+ return undef;
}
}
-sub _sequence_fetch {
- my ( $self, $type, $seq ) = @_;
- my ($id) = $self->_get_dbh->selectrow_array("SELECT nextval('${seq}')");
- return $id;
+sub _exec_svp_begin {
+ my ($self, $name) = @_;
+
+ $self->_dbh->pg_savepoint($name);
}
-sub _svp_begin {
+sub _exec_svp_release {
my ($self, $name) = @_;
- $self->_get_dbh->pg_savepoint($name);
+ $self->_dbh->pg_release($name);
}
-sub _svp_release {
+sub _exec_svp_rollback {
my ($self, $name) = @_;
- $self->_get_dbh->pg_release($name);
+ $self->_dbh->pg_rollback_to($name);
}
-sub _svp_rollback {
- my ($self, $name) = @_;
+sub deployment_statements {
+ my $self = shift;;
+ my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_;
+
+ $sqltargs ||= {};
- $self->_get_dbh->pg_rollback_to($name);
+ if (
+ ! exists $sqltargs->{producer_args}{postgres_version}
+ and
+ my $dver = $self->_server_info->{normalized_dbms_version}
+ ) {
+ $sqltargs->{producer_args}{postgres_version} = $dver;
+ }
+
+ $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest);
}
1;
=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');
=head1 DESCRIPTION
},
);
-=head1 AUTHORS
-
-See L<DBIx::Class/CONTRIBUTORS>
+=head1 FURTHER QUESTIONS?
-=head1 LICENSE
+Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
-You may distribute this code under the same terms as Perl itself.
+=head1 COPYRIGHT AND LICENSE
-=cut
+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>.
projects / dbsrgits/DBIx-Class.git / blobdiff