CREATE TABLE artist (
artistid INTEGER PRIMARY KEY,
- name TEXT NOT NULL
+ name TEXT NOT NULL
);
CREATE TABLE cd (
and create the sqlite database file:
-sqlite3 example.db < example.sql
+ sqlite3 example.db < example.sql
=head3 Set up DBIx::Class::Schema
Then, create the following DBIx::Class::Schema classes:
MyDatabase/Main.pm:
-
+
package MyDatabase::Main;
use base qw/DBIx::Class::Schema/;
__PACKAGE__->load_namespaces;
package MyDatabase::Main::Result::Artist;
use base qw/DBIx::Class/;
- __PACKAGE__->load_components(qw/PK::Auto Core/);
+ __PACKAGE__->load_components(qw/Core/);
__PACKAGE__->table('artist');
__PACKAGE__->add_columns(qw/ artistid name /);
__PACKAGE__->set_primary_key('artistid');
package MyDatabase::Main::Result::Cd;
use base qw/DBIx::Class/;
- __PACKAGE__->load_components(qw/PK::Auto Core/);
+ __PACKAGE__->load_components(qw/Core/);
__PACKAGE__->table('cd');
__PACKAGE__->add_columns(qw/ cdid artist title/);
__PACKAGE__->set_primary_key('cdid');
package MyDatabase::Main::Result::Track;
use base qw/DBIx::Class/;
- __PACKAGE__->load_components(qw/PK::Auto Core/);
+ __PACKAGE__->load_components(qw/Core/);
__PACKAGE__->table('track');
__PACKAGE__->add_columns(qw/ trackid cd title/);
__PACKAGE__->set_primary_key('trackid');
my $schema = MyDatabase::Main->connect('dbi:SQLite:db/example.db');
- # here's some of the sql that is going to be generated by the schema
+ # here's some of the SQL that is going to be generated by the schema
# INSERT INTO artist VALUES (NULL,'Michael Jackson');
# INSERT INTO artist VALUES (NULL,'Eminem');
}
print "\n";
}
-
-
+
+
sub get_cd_by_track {
my $tracktitle = shift;
print "get_cd_by_track($tracktitle):\n";
my $cd = $rs->first;
print $cd->title . "\n\n";
}
-
+
sub get_cds_by_artist {
my $artistname = shift;
print "get_cds_by_artist($artistname):\n";
A reference implentation of the database and scripts in this example
are available in the main distribution for DBIx::Class under the
-directory t/examples/Schema
+directory C<t/examples/Schema>.
With these scripts we're relying on @INC looking in the current
working directory. You may want to add the MyDatabase namespaces to
@INC in a different way when it comes to deployment.
-The testdb.pl script is an excellent start for testing your database
+The C<testdb.pl> script is an excellent start for testing your database
model.
-This example uses load_namespaces to load in the appropriate Row classes
-from the MyDatabase::Main::Result namespace, and any required resultset
-classes from the MyDatabase::Main::ResultSet namespace (although we
-created the directory in the directions above we did not add, or need to
-add, any resultset classes).
+This example uses L<DBIx::Class::Schema/load_namespaces> to load in the
+appropriate L<Row|DBIx::Class::Row> classes from the MyDatabase::Main::Result namespace,
+and any required resultset classes from the MyDatabase::Main::ResultSet
+namespace (although we created the directory in the directions above we
+did not add, or need to add, any resultset classes).
=head1 TODO