NAME Types::DBI - type constraints for dealing with relational databases SYNOPSIS package FroobleBase; use Moose; use Types::DBI; has dbh => ( is => 'ro', isa => Dbh['PostgreSQL'], coerce => 1, required => 1, ); DESCRIPTION Types::DBI is a type constraint library suitable for use with Moo/Moose attributes, Kavorka sub signatures, and so forth. Types This module provides two type constraints, but only `Dbh` is exported by default. `Dbh` A class type for DBI database handles (DBI::db objects). Coercions from: from `Str` The string will be passed to `DBI->connect` as the DSN. Empty strings will be supplied as the username and password parameters. (Many databases allow the username and password to be specified as part of the DSN. Some databases like SQLite can be usefully used without any authentication details.) The `RaiseError` attribute will be set to true. from `ArrayRef` The arrayref will be dereferenced and passed to `DBI->connect`. `Dbh[`a]` `Dbh` can be parameterized with one or more database names: isa => Dbh["SQLite"] isa => Dbh[qw/ SQLite PostgreSQL /] The database names must be a case-sensitive match for the strings returned by `$dbh->get_info(SQL_DBMS_NAME)`. Coercions are inherited from non-parameterized `Dbh`. `Sth` A class type for DBI statement handles (DBI::st objects). No coercions. BUGS Please report any bugs to <http://rt.cpan.org/Dist/Display.html?Queue=Types-DBI>. SEE ALSO Types::Standard, DBI. AUTHOR Toby Inkster <firstname.lastname@example.org>. COPYRIGHT AND LICENCE This software is copyright (c) 2014 by Toby Inkster. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. DISCLAIMER OF WARRANTIES THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.