Rose::HTML::Form::Field::Time - Text field that accepts only valid times and coerces valid input into HH:MM:SS AM/PM format.
$field =
Rose::HTML::Form::Field::Time->new(
label => 'Time',
name => 'time',
default => '8am');
print $field->internal_value; # "08:00:00 PM"
$field->input_value('13:00:00 PM');
# "AM/PM only valid with hours less than 12"
$field->validate or warn $field->error;
$field->input_value('blah');
# "Invalid time"
$field->validate or warn $field->error;
$field->input_value('6:30 a.m.');
print $field->internal_value; # "06:30:00 AM"
print $field->html;
...
Rose::HTML::Form::Field::Time is a subclass of Rose::HTML::Form::Field::Text that only allows values that are valid times, which it coerces into the form HH:MM:SS AM/PM. It overrides the validate() and inflate_value() methods of its parent class.
This is a good example of a custom field class that constrains the kinds of inputs that it accepts and coerces all valid input and output to a particular format.
Other examples of custom fields:
A text field that only accepts valid email addresses.
Uses inflate/deflate to convert input to a DateTime object.
A compound field whose internal value consists of more than one object.
A simple compound field that coalesces multiple subfields into a single value.
A compound field that uses inflate/deflate convert input from multiple subfields into a DateTime object.
A compound field that includes other compound fields and uses inflate/deflate convert input from multiple subfields into a DateTime object.
John C. Siracusa (siracusa@gmail.com)
Copyright (c) 2009 by John C. Siracusa. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
