X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage%2FDBI%2FPg.pm;h=3935a49b044cd68ab157f04dc5edbd078cd12b8b;hb=d4daee7b54e38e4b3d3d0a77759bddc1a4ede6e5;hp=6faaf4c3aa8c5c90e163ff17d2c15fb9cf2e33a9;hpb=0ceac5e1cf9d39d6bf733f36a2461ba3f2fc0023;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage/DBI/Pg.pm b/lib/DBIx/Class/Storage/DBI/Pg.pm
index 6faaf4c..3935a49 100644
--- a/lib/DBIx/Class/Storage/DBI/Pg.pm
+++ b/lib/DBIx/Class/Storage/DBI/Pg.pm
@@ -3,44 +3,110 @@ package DBIx::Class::Storage::DBI::Pg;
 use strict;
 use warnings;
 
-use base qw/DBIx::Class::Storage::DBI/;
+use base qw/DBIx::Class::Storage::DBI::MultiColumnIn/;
+use mro 'c3';
 
-# __PACKAGE__->load_components(qw/PK::Auto/);
+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 ($DBD::Pg::VERSION < 2.009002);  # pg uses (used?) version::qv()
+
+sub with_deferred_fk_checks {
+  my ($self, $sub) = @_;
+
+  $self->dbh->do('SET CONSTRAINTS ALL DEFERRED');
+  $sub->();
+}
+
+sub _dbh_last_insert_id {
+  my ($self, $dbh, $seq) = @_;
+  $dbh->last_insert_id(undef, undef, undef, undef, {sequence => $seq});
+}
 
 sub last_insert_id {
-  my ($self, $source) = @_;
-  $self->get_autoinc_seq($source) unless $source->{_autoinc_seq};
-  $self->_dbh->last_insert_id(undef,undef,undef,undef,
-    {sequence => $source->{_autoinc_seq}});
+  my ($self,$source,$col) = @_;
+  my $seq = ($source->column_info($col)->{sequence} ||= $self->get_autoinc_seq($source,$col));
+  $self->throw_exception("could not fetch primary key for " . $source->name . ", could not "
+    . "get autoinc sequence for $col (check that table and column specifications are correct "
+    . "and in the correct case)") unless defined $seq;
+  $self->dbh_do('_dbh_last_insert_id', $seq);
 }
 
-sub get_autoinc_seq {
-  my ($self,$source) = @_;
-  
-  # return the user-defined sequence if known
-  my $result_class = $source->result_class;
-  if ($result_class->can('sequence') and $result_class->sequence) {
-    return ($source->{_autoinc_seq} = $result_class->sequence);      
+sub _dbh_get_autoinc_seq {
+  my ($self, $dbh, $schema, $table, @pri) = @_;
+
+  while (my $col = shift @pri) {
+    my $info = $dbh->column_info(undef,$schema,$table,$col)->fetchrow_hashref;
+    if(defined $info->{COLUMN_DEF} and
+       $info->{COLUMN_DEF} =~ /^nextval\(+'([^']+)'::(?:text|regclass)\)/) {
+      my $seq = $1;
+      # may need to strip quotes -- see if this works
+      return $seq =~ /\./ ? $seq : $info->{TABLE_SCHEM} . "." . $seq;
+    }
   }
-  
+  return;
+}
+
+sub get_autoinc_seq {
+  my ($self,$source,$col) = @_;
+
   my @pri = $source->primary_columns;
-  my $dbh = $self->_dbh;
   my ($schema,$table) = $source->name =~ /^(.+)\.(.+)$/ ? ($1,$2)
     : (undef,$source->name);
-  while (my $col = shift @pri) {
-    my $info = $dbh->column_info(undef,$schema,$table,$col)->fetchrow_arrayref;
-    if (defined $info->[12] and $info->[12] =~ 
-      /^nextval\('"?([^"']+)"?'::(?:text|regclass)\)/)
-    {
-      $source->{_autoinc_seq} = $1;
-      last;
-    } 
+
+  $self->dbh_do('_dbh_get_autoinc_seq', $schema, $table, @pri);
+}
+
+sub sqlt_type {
+  return 'PostgreSQL';
+}
+
+sub datetime_parser_type { return "DateTime::Format::Pg"; }
+
+sub bind_attribute_by_data_type {
+  my ($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};
   }
+  else {
+    return;
+  }
+}
+
+sub _sequence_fetch {
+  my ( $self, $type, $seq ) = @_;
+  my ($id) = $self->dbh->selectrow_array("SELECT nextval('${seq}')");
+  return $id;
+}
+
+sub _svp_begin {
+    my ($self, $name) = @_;
+
+    $self->dbh->pg_savepoint($name);
+}
+
+sub _svp_release {
+    my ($self, $name) = @_;
+
+    $self->dbh->pg_release($name);
+}
+
+sub _svp_rollback {
+    my ($self, $name) = @_;
+
+    $self->dbh->pg_rollback_to($name);
 }
 
 1;
 
-=head1 NAME 
+=head1 NAME
 
 DBIx::Class::Storage::DBI::Pg - Automatic primary key class for PostgreSQL