package DBIx::Class::Schema::Loader::DBI::MSSQL;
use strict;
use warnings;
use base 'DBIx::Class::Schema::Loader::DBI::Sybase::Common';
use Carp::Clan qw/^DBIx::Class/;
use Class::C3;
our $VERSION = '0.05003';
=head1 NAME
DBIx::Class::Schema::Loader::DBI::MSSQL - DBIx::Class::Schema::Loader::DBI MSSQL Implementation.
=head1 SYNOPSIS
package My::Schema;
use base qw/DBIx::Class::Schema::Loader/;
__PACKAGE__->loader_options( debug => 1 );
1;
=head1 DESCRIPTION
See L<DBIx::Class::Schema::Loader::Base>.
=cut
sub _setup {
my $self = shift;
$self->next::method(@_);
$self->{db_schema} ||= $self->_build_db_schema;
$self->_set_quote_char_and_name_sep;
}
sub _table_pk_info {
my ($self, $table) = @_;
my $dbh = $self->schema->storage->dbh;
my $sth = $dbh->prepare(qq{sp_pkeys '$table'});
$sth->execute;
my @keydata;
while (my $row = $sth->fetchrow_hashref) {
push @keydata, lc $row->{COLUMN_NAME};
}
return \@keydata;
}
sub _table_fk_info {
my ($self, $table) = @_;
my ($local_cols, $remote_cols, $remote_table, @rels);
my $dbh = $self->schema->storage->dbh;
my $sth = $dbh->prepare(qq{sp_fkeys \@FKTABLE_NAME = '$table'});
$sth->execute;
while (my $row = $sth->fetchrow_hashref) {
my $fk = $row->{FK_NAME};
push @{$local_cols->{$fk}}, lc $row->{FKCOLUMN_NAME};
push @{$remote_cols->{$fk}}, lc $row->{PKCOLUMN_NAME};
$remote_table->{$fk} = $row->{PKTABLE_NAME};
}
foreach my $fk (keys %$remote_table) {
push @rels, {
local_columns => \@{$local_cols->{$fk}},
remote_columns => \@{$remote_cols->{$fk}},
remote_table => $remote_table->{$fk},
};
}
return \@rels;
}
sub _table_uniq_info {
my ($self, $table) = @_;
my $dbh = $self->schema->storage->dbh;
my $sth = $dbh->prepare(qq{SELECT CCU.CONSTRAINT_NAME, CCU.COLUMN_NAME FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE CCU
JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS TC ON (CCU.CONSTRAINT_NAME = TC.CONSTRAINT_NAME)
JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE KCU ON (CCU.CONSTRAINT_NAME = KCU.CONSTRAINT_NAME AND CCU.COLUMN_NAME = KCU.COLUMN_NAME)
WHERE CCU.TABLE_NAME = @{[ $dbh->quote($table) ]} AND CONSTRAINT_TYPE = 'UNIQUE' ORDER BY KCU.ORDINAL_POSITION});
$sth->execute;
my $constraints;
while (my $row = $sth->fetchrow_hashref) {
my $name = lc $row->{CONSTRAINT_NAME};
my $col = lc $row->{COLUMN_NAME};
push @{$constraints->{$name}}, $col;
}
my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
return \@uniqs;
}
sub _extra_column_info {
my ($self, $info) = @_;
my %extra_info;
my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/};
my $dbh = $self->schema->storage->dbh;
my $sth = $dbh->prepare(qq{
SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMNPROPERTY(object_id(@{[ $dbh->quote($table) ]}, 'U'), '$column', 'IsIdentity') = 1
AND TABLE_NAME = @{[ $dbh->quote($table) ]} AND COLUMN_NAME = @{[ $dbh->quote($column) ]}
});
$sth->execute();
if ($sth->fetchrow_array) {
$extra_info{is_auto_increment} = 1;
}
$sth = $dbh->prepare(qq{
SELECT COLUMN_DEFAULT
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = @{[ $dbh->quote($table) ]} AND COLUMN_NAME = @{[ $dbh->quote($column) ]}
});
$sth->execute;
my ($default) = $sth->fetchrow_array;
if (defined $default) {
$default =~ s/^\( (.*) \)\z/$1/x;
$extra_info{default_value} =
$default =~ /^['(] (.*) [)']\z/x ? $1 :
$default =~ /^\d/ ? $default : \$default;
}
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;