upload 0.05001

[dbsrgits/DBIx-Class-Schema-Loader.git] / lib / DBIx / Class / Schema / Loader / DBI / Pg.pm

diff --git a/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm b/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm
index 1bd3d4a..d06d7c9 100644 (file)
--- a/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm
+++ b/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm
@@ -2,11 +2,14 @@ package DBIx::Class::Schema::Loader::DBI::Pg;
 
 use strict;
 use warnings;
-use base 'DBIx::Class::Schema::Loader::DBI';
+use base qw/
+    DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault
+    DBIx::Class::Schema::Loader::DBI
+/;
 use Carp::Clan qw/^DBIx::Class/;
 use Class::C3;
 
-our $VERSION = '0.03999_01';
+our $VERSION = '0.05001';
 
 =head1 NAME
 
@@ -18,9 +21,7 @@ PostgreSQL Implementation.
   package My::Schema;
   use base qw/DBIx::Class::Schema::Loader/;
 
-  __PACKAGE__->loader_options(
-    relationships => 1,
-  );
+  __PACKAGE__->loader_options( debug => 1 );
 
   1;
 
@@ -37,9 +38,14 @@ sub _setup {
     $self->{db_schema} ||= 'public';
 }
 
+
 sub _table_uniq_info {
     my ($self, $table) = @_;
 
+    # Use the default support if available
+    return $self->next::method($table)
+        if $DBD::Pg::VERSION >= 1.50;
+
     my @uniqs;
     my $dbh = $self->schema->storage->dbh;
 
@@ -93,11 +99,131 @@ sub _table_uniq_info {
     return \@uniqs;
 }
 
+sub _table_comment {
+    my ( $self, $table ) = @_;
+     my ($table_comment) = $self->schema->storage->dbh->selectrow_array(
+        q{SELECT obj_description(oid) 
+            FROM pg_class 
+            WHERE relname=? AND relnamespace=(
+                SELECT oid FROM pg_namespace WHERE nspname=?)
+        }, undef, $table, $self->db_schema
+        );   
+    return $table_comment
+}
+
+
+sub _column_comment {
+    my ( $self, $table, $column_number ) = @_;
+     my ($table_oid) = $self->schema->storage->dbh->selectrow_array(
+        q{SELECT oid
+            FROM pg_class 
+            WHERE relname=? AND relnamespace=(
+                SELECT oid FROM pg_namespace WHERE nspname=?)
+        }, undef, $table, $self->db_schema
+        );   
+    return $self->schema->storage->dbh->selectrow_array('SELECT col_description(?,?)', undef, $table_oid,
+    $column_number );
+}
+
+# Make sure data_type's that don't need it don't have a 'size' column_info, and
+# set the correct precision for datetime and varbit types.
+sub _columns_info_for {
+    my $self = shift;
+    my ($table) = @_;
+
+    my $result = $self->next::method(@_);
+
+    foreach my $col (keys %$result) {
+        my $data_type = $result->{$col}{data_type};
+
+        # these types are fixed size
+        if ($data_type =~
+/^(?:bigint|int8|bigserial|serial8|bit|boolean|bool|box|bytea|cidr|circle|date|double precision|float8|inet|integer|int|int4|line|lseg|macaddr|money|path|point|polygon|real|float4|smallint|int2|serial|serial4|text)\z/i) {
+            delete $result->{$col}{size};
+        }
+# for datetime types, check if it has a precision or not
+        elsif ($data_type =~ /^(?:interval|time|timestamp)\b/i) {
+            my ($precision) = $self->schema->storage->dbh
+                ->selectrow_array(<<EOF, {}, $table, $col);
+SELECT datetime_precision
+FROM information_schema.columns
+WHERE table_name = ? and column_name = ?
+EOF
+
+            if ($data_type =~ /^time\b/i) {
+                if ((not $precision) || $precision !~ /^\d/) {
+                    delete $result->{$col}{size};
+                }
+                else {
+                    my ($integer_datetimes) = $self->schema->storage->dbh
+                        ->selectrow_array('show integer_datetimes');
+
+                    my $max_precision =
+                        $integer_datetimes =~ /^on\z/i ? 6 : 10;
+
+                    if ($precision == $max_precision) {
+                        delete $result->{$col}{size};
+                    }
+                    else {
+                        $result->{$col}{size} = $precision;
+                    }
+                }
+            }
+            elsif ((not $precision) || $precision !~ /^\d/ || $precision == 6) {
+                delete $result->{$col}{size};
+            }
+            else {
+                $result->{$col}{size} = $precision;
+            }
+        }
+        elsif ($data_type =~ /^(?:bit varying|varbit)\z/i) {
+            my ($precision) = $self->schema->storage->dbh
+                ->selectrow_array(<<EOF, {}, $table, $col);
+SELECT character_maximum_length
+FROM information_schema.columns
+WHERE table_name = ? and column_name = ?
+EOF
+
+            $result->{$col}{size} = $precision;
+        }
+        elsif ($data_type =~ /^(?:numeric|decimal)\z/i) {
+            my $size = $result->{$col}{size};
+            $size =~ s/\s*//g;
+
+            my ($scale, $precision) = split /,/, $size;
+
+            $result->{$col}{size} = [ $precision, $scale ];
+        }
+    }
+
+    return $result;
+}
+
+sub _extra_column_info {
+    my ($self, $info) = @_;
+    my %extra_info;
+
+    if ($info->{COLUMN_DEF} && $info->{COLUMN_DEF} =~ /\bnextval\(/i) {
+        $extra_info{is_auto_increment} = 1;
+    }
+
+    return \%extra_info;
+}
+
 =head1 SEE ALSO
 
 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
 L<DBIx::Class::Schema::Loader::DBI>
 
+=head1 AUTHOR
+
+See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+This library is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.
+
 =cut
 
 1;