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

Re: [Dancer-users] Using shared variables
by Matthew Vickers 25 Jan '12

25 Jan '12

This is the Couch provider I am using in TouchBase3. Gurunandan Bhat <gbhat(a)pobox.com> wrote: >Hi, > >I was wondering about the issues using a shared variable in a single App.pm >file. Here is what I mean: > >package App.pm > >my $var; > >// Initialize $var; >..... > >Route1 => sub { > >// Modify $var >... >} > >Route2 => sub { > >// Use $var >... >} > >I first call Route1 then when I call Route 2, I expect that I will have the >modified value (by Route 1) of $var in route 2. Unfortunately I get an >undefined value for $var. > >Can someone more experienced than I, see if I am doing something obviously >incorrect? > >Thank you > >Regards. > >_______________________________________________ >Dancer-users mailing list >Dancer-users(a)perldancer.org >http://www.backup-manager.org/cgi-bin/listinfo/dancer-users

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Using shared variables
by Gurunandan Bhat 25 Jan '12

25 Jan '12

Hi, I was wondering about the issues using a shared variable in a single App.pm file. Here is what I mean: package App.pm my $var; // Initialize $var; ..... Route1 => sub { // Modify $var ... } Route2 => sub { // Use $var ... } I first call Route1 then when I call Route 2, I expect that I will have the modified value (by Route 1) of $var in route 2. Unfortunately I get an undefined value for $var. Can someone more experienced than I, see if I am doing something obviously incorrect? Thank you Regards.

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Deploying with Plack::Handler::Apache2
by Dave Cross 21 Jan '12

21 Jan '12

I was disappointed to read this in Dancer::Deployment: NOTE: Only a single Dancer application can be deployed using the Plack::Handler::Apache2 method. Multiple Dancer applications will not work properly (The routes will be mixed-up between the applications). I've just installed my second Dancer app on the same Apache instance using Plack::Handler::Apache2 and I can confirm that the second app gets _very_ confused :/ I assume this is a Dancer limitation rather than a Plack one as I already also have a Catalyst app installed in the same Apache instance using Plack::Handler::Apache2. So I was wondering how serious this limitation is? Is it something that could be fixed if a hacker (and, yes, I'm probably volunteering myself here) spent some time investigating the problem? Or is it a hard limit that we're never going to be able to work round? Of course the answer I'd _really_ like is "oh, yes, that'll be fixed in Dancer 2.0" :-) Cheers, Dave... -- Dave Cross :: dave(a)dave.org.uk http://dave.org.uk/ @davorg

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Extrange problem whith Locale::Maketext
by Angel Arancibia 17 Jan '12

17 Jan '12

Hi, I'm getting some extrange problem making Locale::Maketext to work with Dancer. The problem is that, in some "magic" combination, when we are ussing with apache2, the handler return undef. That problem does not happend when we run the application from bin/app.pl. The "Magic" combination is: /en/something -> OK -> change to /de/something -> ERROR -> wait 10seconds try again /de/something -> OK This happend only when ussing Plack::Handler::Apache2, no when we run the application from the ./bin/app.pl The code looks something like: package Extra::L10N; use base qw(Locale::Maketext); ... 1; .... use Extra::L10N; ... my $lh = Extra::L10N->get_handle($args{lang},'en'); # This fails somethime ($lh = undef ) with apache2 but it works as expected with Perl Dancer server Any help would be appreacited :) Thanks, Angel

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Plack middlewares and debug panels
by Nick Knutov 15 Jan '12

15 Jan '12

Hello all, I read http://advent.perldancer.org/2011/16 and found Debug panels. They are superb! I want to write my own debug panel with some specific to my project things - where can I find documentation for this? ps: bug report - panel Dancer::Routes causing crash the app. -- Best Regards, Nick Knutov http://knutov.com ICQ: 272873706 Voice: +7-904-84-23-130

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Dancer::Forms
by T. Linden 12 Jan '12

12 Jan '12

Hello Everyone, first of all I'd like to thank the developers of Dancer so much. It's a great thing and I love it more from day to day! While I'm new to Dancer, I'm not new to perl, but were using Django as app server for a long time now. Some day I thaught: this has to be done in perl, dammit - and I discovered Dancer. However, I missed one thing, that is the forms module of Django. With forms you can validate user input, and generate forms. Since I didn't find anything near such a thing, I implemented it myself: Dancer::Forms. It does the very same as the Django forms system does: you define some fields, how they shall be validated, feed your template with it, and that's it. Beside user input validation I also added a CSRF protection feature to the module. This one could be better put into a Dancer plugin perhaps, I'm unsure... The name maybe misleading, since Dancer::Forms does in fact not depend on Dancer. So it could be used in other environments as well. I hope it is ok, to put it into the Dancer:: namespace anyway. There's still lots of things to do, like more unit tests, better debugging possibilities and - maybe - some kind of "model forms" sub module, which generates the forms from a dbic definition... Take a look: https://metacpan.org/module/Dancer::Forms best regards, Tom -- Please note that according to the German law on data retention, information on every electronic information exchange with me is retained for a period of six months.

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--confdir problem
by Tomasz Konojacki 10 Jan '12

10 Jan '12

Hi! I created Dancer application using "dancer -a test" command. Here are config.yml contents: appname: "test" layout: "main" charset: "UTF-8" template: "simple" is_it_old_config_file: "yep" Additionaly, I have created another config.yml in subdirectory named cfg. It has following contents: appname: "test" layout: "main" charset: "UTF-8" template: "simple" is_it_old_config_file: "nope" lib/test.pm: package test; use Dancer ':syntax'; get '/' => sub { return config->{is_it_old_config_file} }; true; When I run application with "app.pl --confdir=cfg" command, I get "yep" instead of "nope". I tried to specify absolute path, it didn't change anything. I'm using Windows if it matters. Thanks in advance, Tomasz

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utf-8 issues
by Puneet Kishor 03 Jan '12

03 Jan '12

Fellow Dancers, I am mystified by the following issue. My Dancer-powered web site converts utf-8 encoded, plain text files formatted with Markdown into html. My template is based on html5 using the boilerplate from html5boilerplate.com and has the following incantation <!doctype html>      <html class="no-js" lang="en">  <head> <meta charset="utf-8"> and my Dancer config setting has charset : utf-8 Yet, a text file that I created today using Hindi shows up as gobbledegook under Safari. The text file is perfectly legible in two different Mac OS X text editors (Coda and TextWrangler) and in the terminal using `less` and `vim`. Safari is set to detect encoding automatically, but seems like the web server (Starman) is not sending the right encoding. Any thoughts? -- Puneet Kishor

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Fwd: Dancer::Plugin::SQLSearch
by Julio Fraire 31 Dec '11

31 Dec '11

Well, that was a quick "over the weekend". The new version has been uploaded a minute ago. The new default behavior is to AND search terms when the search is over a single database field. When the query is surrounded by double quotes it is not split to allow for exact phrase searches. Julio On Fri, Dec 30, 2011 at 5:48 PM, Julio Fraire <julio.fraire(a)gmail.com>wrote: > Not at all, I guess it will be done over the weekend. > > Julio > > > On Fri, Dec 30, 2011 at 4:30 PM, Naveed Massjouni <naveedm9(a)gmail.com>wrote: > >> Yes, I agree with you. I was only thinking of the case where there is >> only 1 search field. Given a single search field, the default behavior >> I think would be nice is if your plugin split on whitespace in the >> search field and AND'ed the terms together in the corresponding >> generated SQL. Unless the search terms were surrounded by quotes. >> Would this be hard to add? >> -Naveed >> >> On Fri, Dec 30, 2011 at 5:13 PM, Julio Fraire <julio.fraire(a)gmail.com> >> wrote: >> > Hi Naveed, >> > >> > I think AND works nice if you have one search field only. OR works >> nicer if >> > you search across different fields. >> > >> > Imagine this example: You have a table with people names, and you want >> to >> > search across fields "name" and "last_name". What happens if your user >> looks >> > for, say, John Smith? Using OR, the results will include records of >> people >> > whose name is John and their last name, Smith (or Johnson!). That >> certainly >> > includes John Foo and Bar Smith, and John Smith too. Using AND you would >> > likely get zero results. >> > >> > However, if you were storing both words in the same field, and if your >> > search was performed only over a single field, then yes. AND works very >> > good. >> > >> > So, it is probably a good idea to use AND if the list of your search >> fields >> > has only one element. Or this could be a new parameter to the search >> method >> > or a configuration option. >> > >> > Thanks for your suggestion, >> > >> > Julio >> > >> > On Fri, Dec 30, 2011 at 3:19 PM, Naveed Massjouni <naveedm9(a)gmail.com> >> > wrote: >> >> >> >> On Fri, Dec 30, 2011 at 4:11 PM, Julio Fraire <julio.fraire(a)gmail.com> >> >> wrote: >> >> > Hola amigos! >> >> > >> >> > I have uploaded Dancer::Plugin::SQLSearch to CPAN, which is aimed to >> >> > help >> >> > with the creation of simple search pages. Basically, it will take a >> >> > search >> >> > query and turn it into a data structure suitable for SQL::Abstract. >> You >> >> > then >> >> > supply a subroutine that takes this data structure and performs the >> >> > actual >> >> > search in your database. >> >> > >> >> > From the plugin (and your search routine) you get the first page of >> >> > results >> >> > and information to build pagination links. It also saves some info in >> >> > the >> >> > session object to offer "back to search results" links for your >> >> > destination >> >> > pages. >> >> > >> >> > Hopefully the documentation is clear enough for you to play with this >> >> > little >> >> > plugin; the tests should offer some insight as well. I hope you find >> it >> >> > useful. >> >> > >> >> > Happy new year, >> >> > >> >> > Julio Fraire >> >> > >> >> >> >> This plugin looks awesome. Thanks for creating it. I have one >> >> suggestion. It makes more sense to me if the default behavior were >> >> that terms were AND'ed instead of OR'ed. So that a search for "orion >> >> belt" didn't return results for the kind of belt that holds your pants >> >> up. >> >> -Naveed >> > >> > >> > >

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Dancer::Plugin::Database 1.60 adds an on-connect hook
by David Precious 29 Dec '11

29 Dec '11

Hi all, Just in case it's of use to you in your apps, Dancer::Plugin::Database 1.60 adds a 'database_connected' hook position, to allow you to define code that should be executed every time a database connection is established (receiving the new handle as a parameter, so you can use it). Example: hook database_connected => sub { my $dbh = shift; $dbh->sqlite_create_function( 'now', 0, sub { return time } ); }; This feature was requested by Mario Domgoergen, so if it's useful to you, thank him :) Cheers Dave P -- David Precious ("bigpresh") <davidp(a)preshweb.co.uk> http://www.preshweb.co.uk/ www.preshweb.co.uk/twitter www.preshweb.co.uk/linkedin www.preshweb.co.uk/facebook www.preshweb.co.uk/cpan www.preshweb.co.uk/github

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