[Catalyst] HTML-Widget-Constraint-MySQL for testing

[Carl Franks]

If anyone's interested, there's a new project in the subversion repository, at
trunk/HTML-Widget-Constraint-MySQL

It provides constraints based on mysql column types.

Usage:
    my $widget = HTML::Widget->new;

    $widget->element( 'Textfield', 'name' );
    $widget->element( 'Textfield', 'age' );
    $widget->element( 'Textfield', 'salary' );

    $widget->constraint( 'MySQL::VARCHAR',    'name' );
    $widget->constraint( 'MySQL::U_SMALLINT', 'age' );
    $widget->constraint( 'MySQL::BIGINT',     'salary' );

I've used similar checks in many projects over the years, and am very
glad that HTML-Widget is now here to provide an easy-to-use framework,
and is easily expanded like this :)

This is still very much in alpha, and subject to change.
At the moment, only the numeric columns are defined. More to come!

Feedback very much welcome.

Cheers,
Carl