More refactoring, prefetch

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Test / SQLite.pm

package DBIx::Class::Test::SQLite;

=head1 NAME

DBIx::Class::Test::SQLite - Base class for running Class::DBI tests against DBIx::Class compat layer, shamelessly ripped from Class::DBI::Test::SQLite

=head1 SYNOPSIS

	use base 'DBIx::Class::Test::SQLite';

	__PACKAGE__->set_table('test');
	__PACKAGE__->columns(All => qw/id name film salary/);

	sub create_sql { 
		return q{
			id     INTEGER PRIMARY KEY,
			name   CHAR(40),
			film   VARCHAR(255),
			salary INT
		}
	}
	
=head1 DESCRIPTION

This provides a simple base class for DBIx::Class::CDBICompat tests using
SQLite.  Each class for the test should inherit from this, provide a
create_sql() method which returns a string representing the SQL used to
create the table for the class, and then call set_table() to create the
table, and tie it to the class.

=cut

use strict;

use base qw/DBIx::Class/;

__PACKAGE__->load_components(qw/CDBICompat PK::Auto::SQLite Core DB/);

use File::Temp qw/tempfile/;
my (undef, $DB) = tempfile();
END { unlink $DB if -e $DB }

my @DSN = ("dbi:SQLite:dbname=$DB", '', '', { AutoCommit => 1, RaiseError => 1 });

__PACKAGE__->connection(@DSN);
__PACKAGE__->set_sql(_table_pragma => 'PRAGMA table_info(__TABLE__)');
__PACKAGE__->set_sql(_create_me    => 'CREATE TABLE __TABLE__ (%s)');

=head1 METHODS

=head2 set_table

	__PACKAGE__->set_table('test');

This combines creating the table with the normal DBIx::Class table()
call.

=cut

sub set_table {
	my ($class, $table) = @_;
	$class->table($table);
	$class->_create_test_table;
}

sub _create_test_table {
	my $class = shift;
        my @vals  = $class->sql__table_pragma->select_row;
        $class->sql__create_me($class->create_sql)->execute unless @vals;
#	my @vals  = $class->_sql_to_sth(
#                      'PRAGMA table_info(__TABLE__)')->select_row;
#	$class->_sql_to_sth(
#          'CREATE TABLE '.$class->table.' ('.$class->create_sql.')'
#            )->execute unless @vals;
}

=head2 create_sql (abstract)

	sub create_sql { 
		return q{
			id     INTEGER PRIMARY KEY,
			name   CHAR(40),
			film   VARCHAR(255),
			salary INT
		}
	}

This should return, as a text string, the schema for the table represented
by this class.

=cut

sub create_sql { die "create_sql() not implemented by $_[0]\n" }

1;