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use strict; |
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use warnings; |
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package Kelp::Module::FlashMessage; |
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our $VERSION = 0.05; |
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use parent 'Kelp::Module'; |
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sub build { |
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my ( $self, %args ) = @_; |
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my $key = $args{'key'} || 'km::flash'; |
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$self->register( |
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flash_message => sub { |
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my ($self, $value) = @_; |
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if( @_ == 1 ) { |
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$value = delete $self->req->env->{'psgix.session'}->{$key}; |
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} |
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elsif( @_ >= 2 ) { |
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$self->req->env->{'psgix.session'}->{$key} = $value; |
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} |
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return $value; |
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}, |
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flash_message_present => sub { |
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my $self = shift; |
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return exists $self->req->env->{'psgix.session'}->{$key}; |
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} |
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); |
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} |
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1; |
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__END__ |
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=pod |
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=head1 NAME |
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Kelp::Module::FlashMessage - Kelp flash message support |
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=head1 VERSION |
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version 0.01 |
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=head1 SYNOPSIS |
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Module configuration: |
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# conf/config.pl |
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{ |
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modules => ['FlashMessage'], |
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modules_init => { |
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'FlashMessage' => { |
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key => 'flash_custom_key' |
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# optional custom key name, the default is 'km::flash' |
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# it will be used to store the flash message into the session |
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}, |
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} |
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} |
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Usage (from a route) |
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package MyApp; |
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use Kelp::Base 'Kelp'; |
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sub some_route { |
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my $self = shift; |
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$self->flash_message('my flash message' ); |
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return $self->template('my_template', { |
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'fmp' => sub { $self->flash_message_present }, |
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'fm' => sub { $self->flash_message } |
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}); |
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} |
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And finally, the template that consumes the flash message (Text::Xslate example): |
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: if $fmp() { |
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Message: <: $fm() :> |
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: } |
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: if $fmp() { |
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Message (should you see this? - no!) |
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There isn't flash message after you consume it |
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: } |
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87
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=head1 REQUIREMENTS |
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It needs the Plack::Middleware::Session to work properly. See the adding |
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middleware section in the main Kelp documentation. |
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=head1 REGISTERED METHODS |
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This module registers two methods into the application: |
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=over 3 |
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=item C<flash_message> |
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get/sets the flash message. When you get the flash |
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message value, it is deleted. |
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=item C<flash_message_present> |
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returns a true value if the flash message |
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is present. It may be called many times without clear the message |
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109
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=back |
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111
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112
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=head1 AUTHOR |
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Miguel Prz, <niceperl at gmail.com> |
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=head1 BUGS |
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118
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Please report any bugs or feature requests through |
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the web interface at L<https://rt.cpan.org/Public/Dist/Display.html?Name=Kelp-Module-FlashMessage>. |
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I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. |
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122
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=head1 SUPPORT |
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124
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You can find documentation for this module with the perldoc command. |
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126
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perldoc Kelp::Module::FlashMessage |
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128
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129
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You can also look for information at: |
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131
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=over 4 |
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133
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=item * RT: CPAN's request tracker |
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135
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L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Kelp-Module-FlashMessage> |
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137
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=item * AnnoCPAN: Annotated CPAN documentation |
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139
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L<http://annocpan.org/dist/Kelp-Module-FlashMessage> |
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141
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=item * CPAN Ratings |
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143
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L<http://cpanratings.perl.org/d/Kelp-Module-FlashMessage> |
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145
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=item * Search CPAN |
146
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147
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L<http://search.cpan.org/dist/Kelp-Module-FlashMessage/> |
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149
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=back |
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151
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152
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=head1 ACKNOWLEDGEMENTS |
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154
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To Stefan Geneshky, the creator of great Kelp web framework |
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156
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=head1 COPYRIGHT & LICENSE |
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158
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This program is free software; you can redistribute it and/or modify it |
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under the terms of either: the GNU General Public License as published |
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by the Free Software Foundation; or the Artistic License. |
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162
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See http://dev.perl.org/licenses/ for more information. |
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164
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=cut |