|
package SL::Helper::Flash;
|
|
|
|
use strict;
|
|
|
|
require Exporter;
|
|
our @ISA = qw(Exporter);
|
|
our @EXPORT = qw(flash flash_later);
|
|
our @EXPORT_OK = qw(render_flash);
|
|
|
|
#
|
|
# public functions
|
|
#
|
|
|
|
sub flash {
|
|
$::form->{FLASH} = _store_flash($::form->{FLASH}, @_);
|
|
}
|
|
|
|
sub flash_later {
|
|
$::auth->set_session_value(FLASH => _store_flash($::auth->get_session_value('FLASH'), @_))->save_session();
|
|
}
|
|
|
|
sub render_flash {
|
|
return $::form->parse_html_template('common/flash');
|
|
}
|
|
|
|
#
|
|
# private functions
|
|
#
|
|
|
|
sub _store_flash {
|
|
my $store = shift || { };
|
|
my $category = shift;
|
|
$category = 'info' if $category eq 'information';
|
|
|
|
$store ||= { };
|
|
$store->{ $category } ||= [ ];
|
|
push @{ $store->{ $category } }, @_;
|
|
|
|
return $store;
|
|
}
|
|
|
|
1;
|
|
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
SL::Helper::Flash - helper functions for storing messages to be
|
|
displayed to the user
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
The flash is a store for messages that should be displayed to the
|
|
user. Each message has a category which is usually C<information>,
|
|
C<warning> or C<error>. The messages in each category are grouped and
|
|
displayed in colors appropriate for their severity (e.g. errors in
|
|
red).
|
|
|
|
Messages are rendered either by calling the function C<render_flash>
|
|
or by including the flash sub-template from a template with the
|
|
following code:
|
|
|
|
[%- INCLUDE 'common/flash.html' %]
|
|
|
|
=head1 EXPORTS
|
|
|
|
The functions L</flash> and L</flash_later> are always exported.
|
|
|
|
The function L</render_flash> is only exported upon request.
|
|
|
|
=head1 FUNCTIONS
|
|
|
|
=over 4
|
|
|
|
=item C<flash $category, @messages>
|
|
|
|
Stores messages for the given category. The category can be either
|
|
C<information>, C<warning> or C<error>. C<info> can also be used as an
|
|
alias for C<information>.
|
|
|
|
=item C<flash_later $category, @messages>
|
|
|
|
Stores messages for the given category for the next request. The
|
|
category can be either C<information>, C<warning> or C<error>. C<info>
|
|
can also be used as an alias for C<information>.
|
|
|
|
The messages are stored in the user's session and restored upon the
|
|
next request. Can be used for transmitting information over HTTP
|
|
redirects.
|
|
|
|
=item C<render_flash>
|
|
|
|
Outputs the flash message by parsing the C<common/flash.html> template
|
|
file.
|
|
|
|
This function is not exported by default.
|
|
|
|
=back
|
|
|
|
=head1 AUTHOR
|
|
|
|
Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>
|
|
|
|
=cut
|