/usr/share/perl5/Mojolicious/Plugin/DefaultHelpers.pm is in libmojolicious-perl 2.23-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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use Mojo::Base 'Mojolicious::Plugin';
require Data::Dumper;
# "You're watching Futurama,
# the show that doesn't condone the cool crime of robbery."
sub register {
my ($self, $app) = @_;
# Controller alias helpers
for my $name (qw/app flash param stash session url_for/) {
$app->helper($name => sub { shift->$name(@_) });
}
# Stash key shortcuts
for my $name (qw/extends layout title/) {
$app->helper(
$name => sub {
my $self = shift;
my $stash = $self->stash;
$stash->{$name} = shift if @_;
$self->stash(@_) if @_;
return $stash->{$name};
}
);
}
# Add "content" helper
$app->helper(content => sub { shift->render_content(@_) });
# Add "content_for" helper
$app->helper(
content_for => sub {
my $self = shift;
my $name = shift;
$self->render_content($name, $self->render_content($name), @_);
}
);
# Add "dumper" helper
$app->helper(
dumper => sub {
shift;
Data::Dumper->new([@_])->Indent(1)->Terse(1)->Dump;
}
);
# Add "include" helper
$app->helper(
include => sub {
my $self = shift;
my $template = @_ % 2 ? shift : undef;
my $args = {@_};
$args->{template} = $template if defined $template;
# "layout" and "extends" can't be localized
my $layout = delete $args->{layout};
my $extends = delete $args->{extends};
# Localize arguments
my @keys = keys %$args;
local @{$self->stash}{@keys} = @{$args}{@keys};
return $self->render_partial(layout => $layout, extend => $extends);
}
);
# Add "memorize" helper
my $memorize = {};
$app->helper(
memorize => sub {
shift;
my $cb = pop;
return '' unless ref $cb && ref $cb eq 'CODE';
my $name = shift;
my $args;
if (ref $name && ref $name eq 'HASH') {
$args = $name;
$name = undef;
}
else { $args = shift || {} }
# Default name
$name ||= join '', map { $_ || '' } (caller(1))[0 .. 3];
# Expire
my $expires = $args->{expires} || 0;
delete $memorize->{$name}
if exists $memorize->{$name}
&& $expires > 0
&& $memorize->{$name}->{expires} < time;
# Memorized
return $memorize->{$name}->{content} if exists $memorize->{$name};
# Memorize
$memorize->{$name}->{expires} = $expires;
$memorize->{$name}->{content} = $cb->();
}
);
}
1;
__END__
=head1 NAME
Mojolicious::Plugin::DefaultHelpers - Default helpers plugin
=head1 SYNOPSIS
# Mojolicious
$self->plugin('DefaultHelpers');
# Mojolicious::Lite
plugin 'DefaultHelpers';
=head1 DESCRIPTION
L<Mojolicious::Plugin::DefaultHelpers> is a collection of renderer helpers
for L<Mojolicious>.
This is a core plugin, that means it is always enabled and its code a good
example for learning to build new plugins.
=head1 HELPERS
L<Mojolicious::Plugin::DefaultHelpers> implements the following helpers.
=head2 C<app>
%= app->secret
Alias for L<Mojolicious::Controller/"app">.
=head2 C<content>
%= content
Insert content into a layout template.
=head2 C<content_for>
% content_for foo => begin
test
% end
%= content_for 'foo'
Append content to named buffer and retrieve it.
% content_for message => begin
Hello
% end
% content_for message => begin
world!
% end
%= content_for 'message'
=head2 C<dumper>
%= dumper $foo
Dump a Perl data structure using L<Data::Dumper>.
=head2 C<extends>
% extends 'foo';
Extend a template.
=head2 C<flash>
%= flash 'foo'
Alias for L<Mojolicious::Controller/"flash">.
=head2 C<include>
%= include 'menubar'
%= include 'menubar', format => 'txt'
Include a partial template, all arguments get localized automatically and are
only available in the partial template.
=head2 C<layout>
% layout 'green';
Render this template with a layout.
=head2 C<memorize>
%= memorize begin
%= time
% end
%= memorize {expires => time + 1} => begin
%= time
% end
%= memorize foo => begin
%= time
% end
%= memorize foo => {expires => time + 1} => begin
%= time
% end
Memorize block result in memory and prevent future execution.
=head2 C<param>
%= param 'foo'
Alias for L<Mojolicious::Controller/"param">.
=head2 C<session>
%= session 'foo'
Alias for L<Mojolicious::Controller/"session">.
=head2 C<stash>
%= stash 'foo'
% stash foo => 'bar';
Alias for L<Mojolicious::Controller/"stash">.
=head2 C<title>
% title 'Welcome!';
%= title
Page title.
=head2 C<url_for>
%= url_for 'named', controller => 'bar', action => 'baz'
Alias for L<Mojolicious::Controller/"url_for">.
=head1 METHODS
L<Mojolicious::Plugin::DefaultHelpers> inherits all methods from
L<Mojolicious::Plugin> and implements the following new ones.
=head2 C<register>
$plugin->register;
Register helpers in L<Mojolicious> application.
=head1 SEE ALSO
L<Mojolicious>, L<Mojolicious::Guides>, L<http://mojolicio.us>.
=cut
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