Form::Sensible::Field::Select - A multiple-choice option field

    use Form::Sensible::Field::Select;

    my $select_field = Form::Sensible::Field::Select->new( 
                                                         name => 'bread_type'
                                                         accepts_multiple => 1
                                                    );

    $select_field->add_option('wheat', 'Wheat Bread');
    $select_field->add_option('white', 'White Bread');
    $select_field->add_option('sour', 'Sourdough Bread');

    $select_field->set_selection('sour', 'white');

This Field type allows a user to select one or more options from a provided set of options. This could be rendered as a select box, a radio group or even a series of checkboxes, depending on the renderer and the render_hints provided.

accepts_multiple

Does this field allow multiple options to be selected. Defaults to false. Note that the value returned by a select field where 'accepts_multiple' is true will always be an arrayref, even if only a single option was selected.

get_options()

Returns an array ref containing the allowed options. Each option is represented as a hash containing a name element and a value element for the given option.

add_selection($selected_option,...)

Adds the provided option values as selected. If accepts_multiple is true, the provided options will be set IN ADDITION to any existing selections;

set_selection($selected_option,...)

Set's the provided option values as selected. If accepts_multiple is false, only the first item will be set as selected.

add_option($option_value, $option_display_name)

If no options_delegate was provided - Adds the provided value and display name to the set of options that can be selected for this field. If an options_delegate IS provided, has no effect whatsoever.

options_delegate->($self)

The options_delegate is called to obtain the valid options for this field. Is expected to return an array ref of options. Each option should be a hash entry with a name key and a value key. If no options_delegate is provided, defaults to delegating to itself, using internal storage of options (using the add_option mechanism outlined above)

values_ok_delegate->($self, $values_arrayref)

The values_ok_delegate is called to validate the values selected for the field. It is passed an arrayref containing the selected values and should return an array of error messages if any of the values are invalid, or undef otherwise. If no values_ok_delegate is provided, the default delegate simply loops over the options returned by the options_delegate and checks each value provided in turn. If retrieving options is an expensive operation (say pulling from a DB table) it is often less expensive to check the specific values provided rather than pulling back all options and then comparing them. This delegate action provides for that possibility.

Jay Kuri - <jayk@cpan.org>

Ionzero LLC. http://ionzero.com/

Form::Sensible

Copyright 2009 by Jay Kuri <jayk@cpan.org>

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.