October 2013 - dancer-users - lists.preshweb.co.uk

Dancer::SessionFactory::Memcached released
by David Golden 10 Apr '14

10 Apr '14

It's amazing how little code is needed with Moo and the role. Mostly, it just delegates everything. https://github.com/dagolden/dancer-sessionfactory-memcached/blob/master/lib… David -- David Golden <xdg(a)xdg.me> Take back your inbox! → http://www.bunchmail.com/ Twitter/IRC: @xdg

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Plugin nesting in Dancer2
by Marco Pessotto 06 Dec '13

06 Dec '13

Hello all! I have a question about the plugin nesting in Dancer2. I'd like to know if using a plugin (notably the Dancer2::Plugin::Database) inside another plugin is doable or deprecated or hacky or unsupported or just can't work. This used to work with Dancer1, but now it's unclear if and how it should work, as we don't do "use Dancer qw/:syntax/" anymore. The app at runtime seems to work, I get the expected output of the dumped D2::P::D object, but in a Dancer2 qw/:script/ it fails with a "deep recursion" error. use Dancer2 ":script"; use Dancer2::Plugin::Test; print to_dumper(hello); perl -I lib t/script.t 1..1 DEPRECATED: Dancer2::Plugin::Test calls 'dsl' instead of '$dsl->dsl'. at /home/melmoth/perl5/perlbrew/perls/perl-5.16.3/lib/site_perl/5.16.3/Dancer2/Plugin/Database.pm line 57. DEPRECATED: Dancer2::Plugin::Test calls 'dsl' instead of '$dsl->dsl'. at /tmp/MyApp/lib/Dancer2/Plugin/Test.pm line 6. DEPRECATED: Dancer2::Plugin::Test calls 'dsl' instead of '$dsl->dsl'. at /tmp/MyApp/lib/Dancer2/Plugin/Test.pm line 6. DEPRECATED: Dancer2::Plugin::Test calls 'dsl' instead of '$dsl->dsl'. at /tmp/MyApp/lib/Dancer2/Plugin/Test.pm line 6. DEPRECATED: Dancer2::Plugin::Test calls 'dsl' instead of '$dsl->dsl'. at /tmp/MyApp/lib/Dancer2/Plugin/Test.pm line 6. DEPRECATED: Dancer2::Plugin::Test calls 'dsl' instead of '$dsl->dsl'. at /tmp/MyApp/lib/Dancer2/Plugin/Test.pm line 6. Deep recursion on anonymous subroutine at /home/melmoth/perl5/perlbrew/perls/perl-5.16.3/lib/site_perl/5.16.3/Dancer2/Core/Role/DSL.pm line 72. # Looks like your test exited with 255 before it could output anything. The test app is the following (also packed in the tarball attached with the tests). conf: ### cut #### plugins: Database: driver: SQLite database: 'foo.sqlite' ### cut #### app: ### cut #### package MyApp; use strict; use warnings; use Dancer2; use Dancer2::Plugin::Test; our $VERSION = '0.1'; get '/' => sub { my $dbh = hello; return to_dumper($dbh); }; true; ### cut #### plugin: ### cut #### package Dancer2::Plugin::Test; use strict; use warnings; use Dancer2::Plugin; use Dancer2::Plugin::Database; register hello => sub { my $dsl = shift; return database; }; register_plugin; 1; ### cut #### Thanks in advance Best wishes -- Marco

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Dancer2 sessions and cookies?
by Gabor Szabo 06 Dec '13

06 Dec '13

I am trying to add sessions to my new Dancer2 based applications and it drives me crazy as usual. In config.yml I added session: YAML in my login route I added session last_seen => time; Running the applications using plackup -L Shotgun bin/app.pl and accessing it via http://localhost:5000/ (though I get the same behaviour with perl bin/app.pl as well) after I pass the login route I see a new yml file created in the sessions/ directory but when I check my browser I don't see any cookies from localhost and when the code checks in the next get request if (session('last_seen')) it is false. My understanding is that Dancer should set a cookie with the id of the session which is the name of the yml file in the sessions/ directory. What do I need to configure in order to get this working? Gabor

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Dancer and Coffeescript
by Pierre M 06 Dec '13

06 Dec '13

Hi everyone, I have managed to make Coffeescript work with my Dancer2 app, but I'm facing an additional challenge: Source maps won't work, and I'm guessing it might be caused by my files structures. If anyone has managed to use Dancer with Coffeescript's source maps, I would appreciate some help. My file structure is simple: all my .coffee files are in public/coffee. And their .js and .map counterparts are in this same folder too. Here is what I've done in bin/app.pl to make my plack server compile the .coffee files to .js: #!/usr/bin/env perl use FindBin; use lib "$FindBin::Bin/../lib"; use HabitLab; use Plack::Builder; builder { enable 'Compile' => ( # Plack::Middleware::Compile pattern => qr{\.coffee$}, lib => 'public/coffee', blib => 'public/coffee', mime => 'text/plain', map => sub { my $filename = shift; $filename =~ s/coffee$/js/; say " * FILE: $filename"; return $filename; }, compile => sub { my ( $in, $out ) = @_; say " * IN: $in, OUT: $out"; system("coffee --compile --map --stdio < $in > $out"); } ); HabitLab->dance; }; So far I've only created the .map files manually with coffee -cm *.coffee from inside the public/coffee folder. I've tried to modify the source paths inside the .js and .map files, with no success. Any idea of what I might have missed? --- I check email a couple times daily; to reach me sooner, you can send me a text message via this page: https://awayfind.com/mascip

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plack middlewares not loaded from config.yml
by Pierre M 06 Dec '13

06 Dec '13

Hi dancers, I manage to load Plack middlewares from app.pl, but not from the config.yml file. *** In *app.pl* I have: use Plack::Builder; builder { enable 'Debug', panels => [qw<Memory Timer>]; HabitLab->dance; }; which works. *** Here is what i put in *config.yml* instead (and which doesn't work) : layout: "main" plack_middlewares: - - Debug - panels - - Memory - Timer I know that the config file is used, because my layout is used. And I know that this YAML is valid, and produces the following structure (outputed with Data::Printer) : \ { plack_middlewares [ [0] [ [0] "Debug", [1] "panels", [2] [ [0] "Memory", [1] "Timer", ] ] ] } What I don't understand, is why the middleware doesn't work in this case. Any idea? I've followed the examples from here and there: http://advent.perldancer.org/2011/16 http://search.cpan.org/dist/Dancer/lib/Dancer/Cookbook.pod#Plack_middlewares

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How to load different files, in development and production?
by Pierre M 30 Oct '13

30 Oct '13

Hi everyone, I'm deploying my first Dancer2 app, and I want to use different CSS+JS files in development and production. What are good ways to do this? (simple, maintainable) The solution I've imagined so far is to have two separate list of files, and manually include one or the other into my layout with Template::Toolkit's <% INCLUDE filename %>. There must be a better way. Unfortunately, I haven't found how to access environment variables inside the layout file. Pierre --- I check email a couple times daily; to reach me sooner, you can send me a text message via this page: https://awayfind.com/mascip

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How to send back cookies in Dancer2 Tests?
by Gabor Szabo 30 Oct '13

30 Oct '13

Hi there, While testing an application I write in Dancer2 I was trying to test the login mechanism. For this I need to send back the cookie I received from the server. I have code like this: my $r2 = dancer_response POST => '/login', params => { username => $users{username}, password => $users{password}, }, }; my ($cookie) = $r2->header('set-cookie') =~ /(dancer.session=[^;]+);/; diag $cookie; # dancer.session=UnD4WqseotQvyKMGxpoVXSUYRASXQ0TA my $r3 = dancer_response GET => '/', { headers => [ [ 'Cookie' => $cookie ], ], }; But the server responds to the second query as if the cookie was not received by it. The same works when using a regular browser. What am I doing wrong? What do I need to do in order for the session cookie to be sent back? regards Gabor

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Capturing an exception thrown in the routes? on_route_exception
by Gabor Szabo 28 Oct '13

28 Oct '13

Hi, is there a way in Dancer2 to provide a generic handler for exceptions in any route? I added a hook on_route_exception => sub { my ($context, $error) = @_; }; but it is unclear to me what can I do there. I tried to call redirect and forward in that hook but it disregarded both and I still got the exception in the browser. regards Gabor

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Adding my website to dancer floor
by Prasad Gunasekaran 28 Oct '13

28 Oct '13

HI, I would like to add my website( cancer.sanger.ac.uk ) which is based on Dancer framework ( Dancer 1 ), How would I do that? I saw similar email few weeks back but dont remember whats the verdict and how to do it. please let me know, Thanks, Prasad Gunasekaran. -- The Wellcome Trust Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.

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Dancer1 v1.3119 on its way to CPAN
by Yanick Champoux 28 Oct '13

28 Oct '13

Hi all, A new release of Dancer1 is now flowing toward CPAN. The delta, this time around, is a small one, but it'll likely please everybody with a little bit more feature, a little bit more documentation, and a little less bugs. :-) Enjoy, `/anick Revision history for Dancer 1.3119 26.10.2013 [ ENHANCEMENTS ] * GH #965: Serializer also serialize content for DELETE. (reported by Achim Adam) [ BUG FIXES ] * GH #959: hash randomization could cause .pl MIME to vary and test to fail. (Olof Johansson) * GH #961: fix bug in require_environment's logic. (reported by sapphirecat) [ DOCUMENTATION ] * GH #962: Improvements of the Dancer::Test docs. (Tom Hukins)

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