[Dancer-users] Generating PDF with Template-Plugin-Latex fails inside route handler

[Mike Mandel]

Am 08.01.2011 16:32, schrieb Alastair Sherringham:
> Mike,
>
> The docs for "system" e.g.
>
> http://perldoc.perl.org/functions/system.html
>
> talk about the return code - and how to interpret it. I've had a play
> with Dancer using the code as per perldoc "system" - see below. Not
> sure what the issue is.
>
> 1) Run via dancer built in server :
>
> perl bin/app.pl
>
> http://localhost:3000 shows :
>
> Got : [failed to execute: No child processes]
>
> 2) Run via plackup :
>
> plackup -p 3000 bin/app.pl
>
> http://localhost:3000 shows :
>
> Got : [child exited with value 0]
>
> I expect (2) - and it is what I get on the command line (with the
> subroutine run_cmd()). Something is different with running via the
> dancer server - not sure what.
>
> Code :
>
> #-----------------------------------------------------------------------------------
> package TestApp;
> use Dancer ':syntax';
>
> our $VERSION = '0.1';
>
> get '/' => sub {
>     my $o = run_cmd();
>     return "<p>Got : [$o]</p>";
>
> };
>
> sub run_cmd
> {
>     my ($return,$msg);
>     system("/usr/local/bin/hg","--version");
>     $return = $?;
>
>     if ($? == -1) {
>         $msg = "failed to execute: $!";
>     }
>     elsif ($? & 127) {
>         $msg = sprintf("child died with signal %d, %s coredump",
>             ($? & 127), ($? & 128) ? 'with' : 'without');
>     }
>     else {
>         $msg = sprintf("child exited with value %d", $? >> 8);
>     }
>     return $msg;
> }
>
> true;
> #------------------------------------------------------------------
>
> Cheers,
> Alastair
>
>
> On 7 January 2011 23:38, Mike Mandel <mandel at stud.fh-hannover.de> wrote:
>   
>> Hello,
>>
>> I tracked it down a little bit, and found out, that the return code
>> of the system() function is different inside a route handler than outside.
>> Could please someone test this?
>>     
>   
Hi Alastair,

thanks for the hint with plackup.
I have tried it and it works now as it should.

Thanks,

Mike