[dancer-users] Trouble in uploading file
Fotis E. Psomopoulos
fpsom at issel.ee.auth.gr
Tue Jul 30 18:17:58 BST 2013
Dear Racke,
thank you for your response.
> On 07/30/2013 06:27 PM, Fotis E. Psomopoulos wrote:
>>/ Dear all,
/>>/
/>>/ I am quite new to Dancer but I am really amazed on how few lines of code I have to write for the same functionality (still exploring though).
/>>/
/>>/ However, I have hit the following issue: I am trying to upload a file using the following code:
/>>/
/>>/ put '/upload/:file' => sub {
/>>/ my $upload_dir = "MyApp/UPLOADS";
/>>/ my $filename = params->{file};
/>>/ my $uploadedFile = request->upload($filename);
/>>/
/>>/ debug "My Log 1: " . params->{file};
/>>/ debug "My Log 2: " . ref($uploadedFile);
/>>/
/>>/ open ( UPLOADFILE, "$upload_dir/$filename" ) or die "$!";
/>>/
/>>/ while ( <UPLOADFILE> )
/>>/ {
/>>/ print UPLOADFILE;
/>>/ }
/>>/
/>>/ close UPLOADFILE;
/>>/
/>>/ return "DONE";
/>>/ };
/>>/
/>>/ The PUT command is done via cURL as follows:
/>>/
/>>/ curl --upload-file testhttp://localhost:3000/upload/test
/>>/ DONE
/>>/
/>>/ The output that I see in the "development dance floor" is the following:
/>>/
/>>/ [9072] core @0.000341> request: PUT /upload/test from 127.0.0.1 in /Perl/site/lib/Dancer/Handler.pm l. 56
/>>/ [9072] core @0.002434> [hit #1]Trying to match 'PUT /upload/test' against /^\/upload\/([^\/]+)$/ (generated from '/upload/:file') in /Perl/site/lib/Dancer/Route.pm l. 84
/>>/ [9072] core @0.004173> [hit #1] --> got 1 in /Perl/site/lib/Dancer/Route.pm l. 102
/>>/ [9072] core @0.006625> [hit #1] --> named tokens are: file in /Perl/site/lib/Dancer/Route.pm l. 130
/>/> [9072] debug @0.009443> [hit #1]My Log 1: test in MyApp\lib/MyApp.pm l. 20
/>/> [9072] debug @0.010818> [hit #1]*My Log 2: in MyApp\lib/MyApp.pm l. 21*
/>/> [9072] core @0.015854> [hit #1]response: 200 in /Perl/site/lib/Dancer/Handler.pm l. 179
/>/>
/>/> The problem is that the file is created with the correct name in the correct folder (MyApp/UPLOADS/test) but it is always empty (0 size). No other warnings or errors, but I do see an issue in the output (marked in bold - 2nd custom debug line). Any ideas?
/>/>
/>
> Why don't you use the functions of the upload object to store the uploaded file?
I have tried the following code:
put '/upload/:file' => sub {
my $upload_dir = "c:/Fotis/INA-CERTH/Microme/PathTrace/WebApp/PathTraceWS/UPLOADS";
my $filename = params->{file};
my $uploadedFile = request->upload($filename);
$uploadedFile->copy_to('$upload_dir');
debug "My Log 1: " . params->{file};
debug "My Log 2: " . ref($uploadedFile);
return "DONE";
};
However, the problem is probably the same as before:
/
//request to PUT /upload/test crashed: Can't call method "copy_to" on an undefined value/
What I really cannot understand is why the second debug line returns empty (...ref($uploadedFile)...).
> Also you open the file for reading, not for writing.
Well that's embarrassing... However, I corrected it and the problem remains (for some reason, it doesn't get the file).
Thank you very much for your time!
Regards,
Fotis
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