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package Dancer2::Template::Handlebars 1.00; |
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# ABSTRACT: Dancer2 wrapper for Handlebars templating engine |
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use strict; |
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use warnings; |
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use Text::Handlebars; |
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use Module::Runtime qw/ use_module /; |
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use Moo; |
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use Try::Tiny; |
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with 'Dancer2::Core::Role::Template'; |
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has '+default_tmpl_ext' => ( default => sub {'hbs'}, ); |
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has helpers => ( |
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is => 'ro', |
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lazy => 1, |
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builder => '_build_helpers', |
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); |
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has _engine => ( |
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is => 'ro', |
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lazy => 1, |
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default => sub { |
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my $self = shift; |
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return Text::Handlebars->new( helpers => $self->helpers, ); |
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}, |
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); |
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has _config => ( |
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is => 'ro', |
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lazy => 1, |
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default => sub { |
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return $_[0]->settings->{engines}->{handlebars} || {}; |
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}, |
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); |
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sub _build_helpers { |
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my $self = shift; |
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my %helpers; |
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if ( my $h = $self->_config->{helpers} ) { |
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for my $module ( ref $h ? @$h : $h ) { |
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my %h = try { |
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use_module($module)->HANDLEBARS_HELPERS |
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} |
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catch { |
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die "couldn't import helper functions from $module: $_"; |
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}; |
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@helpers{ keys %h } = values %h; |
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} |
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} |
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return \%helpers; |
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} |
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sub render { |
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my ( $self, $template, $tokens ) = @_; |
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my $method = 'render'; |
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if ( ref $template ) { # it's a ref to a string |
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$template = $$template; |
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$method .= '_string'; |
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} |
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return $self->_engine->$method( $template, $tokens ); |
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} |
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1; |
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__END__ |
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=pod |
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=encoding UTF-8 |
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=head1 NAME |
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Dancer2::Template::Handlebars - Dancer2 wrapper for Handlebars templating engine |
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=head1 VERSION |
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version 1.00 |
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=head1 SYNOPSIS |
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in your L<Dancer2> app config.yml: |
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template: "handlebars" |
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...and if you want to add custom helpers: |
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engines: |
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handlebars: |
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helpers: |
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- MyApp::HandlebarsHelpers |
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=head1 HELPERS |
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You can create custom modules full of helpers to use in your Handlebars templates. For |
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more details on creating these, see L<Dancer2::Template::Handlebars::Helpers>. |
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Handlebars comes with helpers C<with>, C<each>, C<if>, and C<unless>. |
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=head1 GRATEFUL THANKS |
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...to L<Yanick|https://metacpan.org/author/YANICK>, for his prior work on |
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L<Dancer::Template::Handlebars> and L<Dancer2::Template::Mustache>. |
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Most all of the code you see in this module is his work, or very, very |
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close to his original code; I merely remixed it, and got tests working |
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for my own purposes. |
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=head1 SEE ALSO |
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L<http://handlebarsjs.com> |
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L<Text::Handlebars> |
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=head1 SUPPORT |
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You can find this documentation for this module with the perldoc command. |
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perldoc Dancer2::Template::Handlebars |
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You can also look for information at: |
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=over 4 |
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=item * MetaCPAN |
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L<https://metacpan.org/release/Dancer2-Template-Handlebars> |
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=item * Gitlab |
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L<https://gitlab.com/GeekRuthie/dancer2-template-handlebars> |
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=item * Gitlab issues tracker |
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L<https://gitlab.com/GeekRuthie/dancer2-template-handlebars/-/issues> |
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=item * CPAN Ratings |
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L<http://cpanratings.perl.org/d/Dancer2-Template-Handlebars> |
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=back |
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=head1 AUTHOR |
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D Ruth Holloway <ruth@hiruthie.me> |
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=head1 COPYRIGHT AND LICENSE |
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This software is copyright (c) 2020 by D Ruth Holloway. |
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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=cut |