August 2016 - dancer-users - lists.preshweb.co.uk

Web application frameworks recommended by GitHub
by Gabor Szabo 28 Aug '16

28 Aug '16

Hi there, I've just found this page https://github.com/showcases/web-application-frameworks linked from all the other Showcases: https://github.com/showcases Among the Perl frameworks it lists Mojolicious and Catalyst, but not Dancer. Someone here might want to find out how to get Dancer added there. In other news, I've started a new podcast that also includes video recordings. The first episode was with Jason Crome on Perl Dancer 2 the second with Sawyer on Perl 5. The home of the podcast is here: http://code-maven.com/cmos That's where you can listen to the show and where you can find the RSS feed to subscribe. regards Gabor

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Plug in version hell
by Zahir Lalani 22 Aug '16

22 Aug '16

Hi All Need some advice please. Spent most of the weekend debugging an issue as it was affecting a release. The latest sprint worked on our local devs but not on our integration master server. It was very difficult to tell where the issue was. It kept complaining about not the deferred keyword, but the module was installed. It transpired that the integration server had an older version. Upgrading it sorted it. How do people ensure that modules are at a consistent version across servers - we are in the process of building an RPM for dancer so we can control this, but I was hoping there was an easy answer Thx Z

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Installing Dancer2 On Windows Operating System
by Kadir Beyazlı 20 Aug '16

20 Aug '16

Hi All, I tried to install Dancer2 on Windows (64 bit) but it failed. I applied following steps 1-) Installed Strawperry Perl, because Perl was not installed at pc 2-) Installed cpanminus with command: cpan App::cpanminus 3-) installed Dancer2 with command: cpanm Dancer2 At terminal, when I wirte follwing command dancer2 -a myapp dancer2 is not recognised ... When I check following folder, I see that Dancer2 has been dpwnloaed C://Strawberry/cpan.... If it is needed to add dancer2 to path, what is its path? I am linux user, it was not needed add dancer2 to path when I installed Dancer2. *Kadir Beyazlı* *GSM : +90 535 821 50 00*

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Cool mugs at the Perl Dancer Conference
by Stefan Hornburg (Racke) 18 Aug '16

18 Aug '16

Please take a look here: https://www.perl.dance/news/dancer-mug-2016 Get your conference ticket at https://www.perl.dance/tickets and you get a free mug and a free T-Shirt. Ask for a conference discount at 2016(a)perl.dance if you are a * Dancer newbie * Perl hacker and your financial resources are limited. Also, you can still submit a talk and get a free ticket if your talk is accepted! Regards Racke -- Ecommerce and Linux consulting + Perl and web application programming.

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Dancer2::Plugin to_json
by Hagop "Jack" Bilemjian 16 Aug '16

16 Aug '16

sub BUILD { my $plugin = shift; my $app = $plugin->app; $plugin->app->add_route( method => 'get', regexp => qr!/mypagel!, code => \&myfuncl, ); Then, in sub myfunc { I want to call to_json. Right now, I'm doing a use JSON, and it works properly. Is there a way to call the serialozer from the app like $app->to_json? What is recommended? Thanks, Jack

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Wolowitz
by Zahir Lalani 15 Aug '16

15 Aug '16

Hi All I am trying to use Dancer2::Plugin::Locale::Wolowitz, but it does not seem to pick the config info at all. Here is my config.yml plugins: Locale::Wolowitz: lang_session: "es" locale_path_directory: "locale/default" I presume this looks for a directory under the project path of locale/default. If I try and use loc() I get an error saying the i18n directory cannot be found. Even if I create the i18n directory under the project root, it still does not work. I even dumped plugin_settings() from within loc() and it returns empty. Any ideas? Zahir Lalani Head of Development & Architecture [cid:96F784CA-E917-4CC1-A9A9-96CBDA2AF2BC] 2 Tabernacle Street, London, EC2A 4LU m: +44 (0)7956 455168 t: +44 (0)203 142 3619 e: zahirlalani(a)oliver-marketing.com<mailto:zahirlalani@oliver-marketing.com> w: www.oliver-marketing.com<http://www.oliver-marketing.com/>

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Dancer 0.202000 allows plugins to call DSL (even of other plugins!) and fixes unicode support for parameter methods
by Jason A. Crome 13 Aug '16

13 Aug '16

Dancer2 0.202000 is on its way to a CPAN mirror near you, and brings several important bug fixes and enhancements. Plugins may now easily call the application’s DSL using `$self->dsl`. For example, logging a debugging message is as easy as `$self->dsl->debug( “I’m in your plugin!” );` Plugins can now also call the syntax of plugins that they have loaded. Consider this example: Your Dancer2 application (`MyApp`) uses plugin `Foo`. Plugin `Foo` uses plugin `Bar`. Plugin `Bar` adds `baz()` to the DSL. Plugin `Foo` can now access `baz()` (just like the DSL in Dancer2 works), however, `baz()` is only accessible to the Foo plugin, *not* `MyApp`. Please keep in mind that if plugin `Bar` adds any hooks, those hooks are added to `MyApp`, but `Bar`’s DSL is not available to `MyApp`. The parameter methods in Dancer2 (`body_parameters()`, etc.) were not decoding Unicode values passed to them. All parameter methods are now decoding Unicode characters. There have been several maintenance issues regarding `Type::Tiny::XS`, and these were causing compilation and runtime failures for users of Dancer2 on Strawberry Perl. Until these issues are resolved, we have returned to using `MooX::Types::MooseLike` for type checking. If you’re a plugin author, please check your plugin against this release as this change may require some reworking on your part. Please find us on `irc.perl.org#dancer` with any questions or help you may need. A memory leak was uncovered in `Dancer2::Plugin`, and has been patched in this release. A test has been added to check for this in the future. If you have `HTTP::XSCookies` installed, we will now use it, and cookie operations will be substantially faster. The full changelog is as follows: 0.202000 2016-08-13 13:50:30-05:00 America/Chicago [ BUG FIXES ] * Fix memory leak in plugins. (Sawyer X) * GH #1180, #1220: Revert (most of) GH #1120. Change back to using MooX::Types::MooseLike until issues around Type::Tiny are resolved. Peter (@SysPete) Mottram * GH #1192: Decode body|query|request_parameters (Peter Mottram) * GH #1224: Plugins defined with :PluginKeyword attribute are now exported. (Yanick Champoux) * GH #1226: Plugins can now call the DSL of the app via $self->dsl (Sawyer X) [ ENHANCEMENTS ] * PR #1223: Add YAML::XS to Recommends (Peter Mottram) * PR #1117: If installed, use HTTP::XSCookies and all cookie operations will be faster (Peter Mottram) * PR #1228: Allow register_plugin() to pass @_ properly (Sawyer X) * PR #1231: Plugins can now call the syntax of plugins they loaded (Sawyer X) [ DOCUMENTATION ] * PR #1151: Note that config is immutable after first read (Peter Mottram) * PR #1222: Update list of files generated by `dancer2 -a`, make name of sample app consistent (Daniel Perrett) If you have any questions, please find us at `irc.perl.org#dancer`. Thank you to our amazing community and plugin developers for your continued support. Your questions, contributions, and the support you give the core team and each other continue to make the Dancer2 community great. Just a reminder, the Dancer conference in Vienna, Austria is quickly approaching. If you are interested in attending or giving a talk, please visit the [conference website](https://www.perl.dance/). Happy dancing! Jason A. Crome / CromeDome On behalf of the Dancer Core Team

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Add a cookie and redirect
by Amelia Ireland 05 Aug '16

05 Aug '16

Hi all, I would like to add an extra cookie to a request and redirect it. The code that I would think should work does not appear to be doing so, though. Here's the route in question: any '/login' => sub { my $c = Dancer2::Core::Cookie->new( name => 'return_to', value => '/', domain => config->{sso_domain}, expires => '5 mins' ); push_response_header 'Set-Cookie' => $c->to_header; redirect 'http://example.com'; }; When I test this code, though, nothing shows up in the cookie jar: my $res = $app->request( GET '/login' ); is( $res->code, 302, '[GET /login] Correct code' ); is( $res->headers->header('Location'), 'http://example.com', 'Correct Location header', ); $jar->extract_cookies( $res ); say 'cookies: ' . $jar->as_string; # output: "cookies: " -- i.e. no cookies found say 'headers: ' . Dumper $res->headers; # output: headers: bless( { "::std_case" => { cookie => "Cookie", "set-cookie" => "Set-Cookie", "set-cookie2" => "Set-Cookie2" }, "content-length" => 303, "content-type" => "text/html; charset=utf-8", cookie => "return_to=%2F; path=/; expires=Thu, 04-Aug-2016 20:47:05 GMT; domain=example.com", location => "http://example.com" }, 'HTTP::Headers' ) I'm not sure where the problem is -- am I setting the cookie incorrectly? Does it not get added to the redirected request? Any suggestions gratefully received! Thanks.

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Dancer2 / CentOS 5 => no object method "has_hook"
by Jochen Schnuerle 04 Aug '16

04 Aug '16

Hi, my app create the following message on my CentOS 5 installation: [root@fsisrv5 ~]# Error while loading /opt/fsi/portal/bin/fsi.psgi: Can't locate object method "has_hook" via package "Dancer2::Session::YAML" at /opt/fsi/portal/bin/../lib/Dancer2/Core/App.pm line 543. Compilation failed in require at /opt/fsi/portal/bin/../lib/fsi.pm line 193. Compilation failed in require at /opt/fsi/portal/bin/fsi.psgi line 22. BEGIN failed--compilation aborted at /opt/fsi/portal/bin/fsi.psgi line 22. I find the sub in Hookable.pm in line 92. So I search for the load of this perl module and find in App.pm following: with qw< Dancer2::Core::Role::Hookable Dancer2::Core::Role::ConfigReader >; I found a document for Perl-Moo (https://metacpan.org/pod/Moo#with) which said to me, that it define a role of a class. At this point I stop, because I have not experience with Moo and the object, role and class developing. If I run my app on a CentOS 6 or 7 installation, all work fine. So I think the source of the Dancer2 framework is ok. On CentOS 5 I use perl-Moo version 1.004002 and on CentOS 6/7 a version 2.x. On all installation I use Dancer2 0.201000 or the latest commit from git. Is there a way to find out which module on CentOS 5 create the error above? Is this a problem with the perl-Moo module? Or I am missing something else (pm)? Regards Jochen

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