January 2014 - dancer-users - lists.preshweb.co.uk

Can I convert App::Notifier::Service from Dancer 1 to Dancer2?
by Shlomi Fish 07 Aug '15

07 Aug '15

Hi all, Is there a good reason why I should *not* convert https://metacpan.org/pod/App::Notifier::Service from Dancer 1 to Dancer2? It's a simple web app, meant to run synchronously, and I can debug it by using perl -d, and last time I tried doing s/Dancer/Dancer2/g everything worked nicely. Is there a good enough reason to stay with Dancer 1? Regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ http://www.shlomifish.org/humour/bits/Can-I-SCO-Now/ - "Can I SCO Now?" If it isn’t in my email, it doesn’t exist. And if the whole world says one thing and my email says something different, email will conquer. — an Israeli Linuxer. Please reply to list if it's a mailing list post - http://shlom.in/reply .

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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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How do you measure code coverage?
by Иван Бессарабов 04 Feb '14

04 Feb '14

I have a small Dancer1 app and I have started writing tests for the web part. I used to write unit tests, but I have never written tests that test web component. With Dander::Test the task of writing tests is very simple, thank you for that module. But I don't understand one thing. I'm using Devel::Cover to find out what I haven't tests. It works fine with my application model that is created without Dacner, but it does not work for the Dancer routes. Devel::Cover does not create any metrics for such code: any ['get', 'post'] => '/login' => sub { ... } Devel::Cover shows that all my Dacner code is 100% coverd, but this is not true. So this tool does not answer the question what is tested and what is not. So my question is how do you measure coverage of code that is tested?

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Complex Query ?
by Hugues 31 Jan '14

31 Jan '14

Hello I use dancer 1 with with mysql @resultCC = database('db')->quick_select('ClientContrat', { NumContrat => { like => "$search%" } }, { limit => 10 } ); I send @resultCC to my template tt and it's work well I would like to pass complex query my $sql ="SELECT Client.CodeClient, Client.NomClient,Client.Ville, ClientContrat.NumContrat FROM Client INNER JOIN ClientContrat ON (Client.CodeClient = ClientContrat.CodeClient) WHERE Client.CodeClient LIKE '%" .$search. "%' LIMIT 10"; I do not find solution to use current mysql connection , and quick_select ? ( it 's ok only if I create new connection with , connect, prepare execute ....) what is the best way to do that ? thanks Hugues.

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"use Dancer2" interferes with package exports
by Warren Young 27 Jan '14

27 Jan '14

Consider this trivial module, Foo.pm: package Foo; require Exporter; our @ISA = qw(Exporter); our @EXPORT = qw(foo); use Dancer2; sub foo { map { "You gave me '$_', right?" } @_; } 1; ...and this trivial test program: #!/usr/bin/env perl use Foo; print join "\n", foo("foo", "bar"); If you run it, it will complain that &main::foo is undefined. Yet, it is unconditionally exported from package Foo by Exporter, since we've used @EXPORT. (The symptom doesn't change if you use @EXPORT_OK and import &foo explicitly, though.) The fix is easy: comment out the "use Dancer2" line. Why does that help? Why is Dancer2 roaching my module's exports list? Does it have something to do with the way Dancer exports DSL keywords into the global namespace? This is not a real solution, anyway. There is a real "Foo" module in my program that does useful work, and when I pound out the "use Dancer2" line in that module, all of my static content stops being served. Dancer tries to treat everything like a route. It's like the appdir setting isn't getting defined correctly. I tried to test that guess, putting this in one of the route handlers: debug "APPDIR: ", Dancer2::Config::setting('appdir'), "\n"; That just gets me an undefined subroutine error in the browser. I checked Dancer/Config.pm to make sure that routine really exists, as the docs claim, and it does seem to. Is this what you guys mean by "alpha"? :)

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How to get the path or name of a template in a hook before the template is rendered
by Christoph Huhn 27 Jan '14

27 Jan '14

Hello fellow Dancers... I'm using Dancer 1.3. I need to add the path (relative to views directory) or at least file name of the template about to be rendered to the template tokens hash passed to this template. I don't want to replace the template set by the route handler, so a read only solution for the template name would be OK. I was hoping to do this with a before_template_render hook in a plugin, but it looks like that's impossible right now, because the hook only get's passed the tokens, not the filename. Then I tried a solution via Template Toolkits META template.name in my layout template, but that doesn't work either, because template.name is the layout template, not the content template. After checking the Dancer docs I found out that Dancer is not using TTs WRAPPER, so that's not possible. I could add the META to my content template, but the I'd have to change all of my templates and every template call in my route handlers (wich are quite a lot by now). I've searched the docs, googled quite a lot of Dancer related websites and browsed through the code of some Plugins, but haven't found a "official" way to get the template file path or file name. I've seen a solution (in Dancer::Plugin::DebugToolbar) that iterates over %INC and overrides every render method of any Dancer::Template::* module it can find. That would work, but it feels kinda wrong to me. There should be an easier solution to this, than digging in the guts of core or other plugin modules. Any suggestions are most welcome. Best regards, Chris

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Confused about types and globals
by Warren Young 23 Jan '14

23 Jan '14

I'm trying to get my head around Dancer2, and am having trouble because it doesn't look entirely like Perl to me. For example: get '/foo/*' => sub { .... What is "get", exactly? I assume it is a function that takes a string and a coderef, and you're taking advantage of Perl's optional parentheses and fat comma to create a Perl-based DSL. The problem is, I can only find examples and tutorial docs, not a reference that outright confirms that, so I'm left with this uneasy feeling that I don't truly understand what's going on here yet. I tried to answer this myself before posting. I thought it might be a package-global function, but there is no "sub get" in Dancer2.pm. I also tried looking for a POD reference page on metacpan that explains this, but it ends up being a fully manual search since the metacpan search engine can't help with a generic term like 'get', and there are ~50 namespace pages to dig through. Another example: context->destroy_session The only way I can think of for that to work without a sigil is for 'context' to be another global (?) function that returns an object reference, rather than be an object reference itself. There is no "context" in Dancer2.pm, so I'm left wondering where it comes from. In one place, the tutorial docs say it is passed in to a "before" handler, while in other places it is assumed that you can just *use* this entity without having one passed into the route handler. I care about this because I'm trying to port a fairly complex app from Apache::ASP to Dancer2, and this app is already broken up into many separate modules. Because of this, the tutorial docs' assumption that I am writing all of my server-side code within the top-level module's route handlers doesn't apply. I'm not going to consolidate dozens of modules of code into this one module, just to solve the namespace problems. That just trades one problem for another. Ideally, I want my top-level module to be as small as possible, doing little more than set up the route handlers, delegating all the real work to other modules. To do that, I need to know where these objects come from, their exact data type, and which package's namespace they live in. Then I'll know how to reference them or pass them around to the modules that do the work in my app.

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send_error() message strings lost running under Apache cgi?
by tednolan＠bellsouth.net 17 Jan '14

17 Jan '14

Hello folks, While building my dancer (Dancer 1.312) app with XML serialization, I have been running in standalone mode. Now I need to deploy under apache with cgi, given that I need the SSL support and multiple connection support that gives, and since apache is the server we are already running. I followed the deployment instructions, and can no access my app through the apache/cgi mechanism. However: When I was running standalone, on the client side I was seeing all the messages I was sending with: send_error("my explanation of the problem", HTTP_CODE) under apache, it appears I just get the HTTP_CODE and some generic message. I don't seem to be getting the XML serialized "error" parameter at all. Is this a known issue? Is there a work around? I would hate to have to try to figure out a standalone deployment with forking and SSL.. Thanks! Ted Nolan

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perl-dancer-angular-seed, a Perl Dancer/AngularJS seed project
by Jacques Lareau 09 Jan '14

09 Jan '14

Hi all, At work, I use Dancer extensively and find it awesome. I use AngularJS combined with Bootstrap/FontAwesome on the front end. I created this seed project to help in creating my application folder to kickstart projects easily. It also contains seed files for bower, npm, grunt and carton. I think having a seed project, and great doc, to use Dancer as a back end for AngularJS could help drive people to Dancer. People want to use AngularJS but don't really know what to use as a back end yet. https://github.com/jacqueslareau/perl-dancer-angular-seed This project is really new (not even version 0.0.1) and I'm looking for comments/suggestions or contributors. I also plan to use perlbrew/carton to manage perl and it's packages. Which leads me here: Can anybody offer insight on how to best implement perlbrew and carton with Dancer? Thanks! - Jacques Lareau

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