Question

Problem In generating the CSV file in the perl code. using Apache

Asked by: Aloha_Technology

Hi Experts ,

We are implementing the functionality to generate the CSV file (reports) in the perl - Apache environment.

This functionality seems to work improperly   for  some data. We  are using the following code to get the things done.

<code>
my $r = Apache->request;
$r->content_type('text/csv');
my $headers_hash = $r->headers_out;
$headers_hash->{'Content-disposition'} = "attachment; filename=" . $report_name . ".csv";
<code>

This code is expected to ask to save the generated .CSV  file , but it is not doing the same.

Any advice where I should concentrate so that I can get the better and correct output in the CSV format


Thanks,

 





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Asked On
2008-01-22 at 06:45:56ID23101213
Tags

open source

,

perl

Topics

CGI Scripting

,

Apache Web Server

,

Perl Programming Language

Participating Experts
4
Points
250
Comments
11

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Answers

 

by: JabapythPosted on 2008-01-22 at 07:56:00ID: 20715342

What _does_ it do? Does it display the CSV file to the page? Does it give an error? You might also try printing the headers yourself:

print "Content-type: text/csv";
print "Content-Disposition: attachment; filename=hello.csv\n\n";
                                              
1:
2:

Select allOpen in new window

 

by: Aloha_TechnologyPosted on 2008-01-23 at 01:12:43ID: 20721846

Hi,
we don't get any kind of error message but the data generated for .CSV is not written into the .CSV but its get displayed on the html page while clicking on the link of Displaying CSV file.
we cant get prompt to save the generated .CSV file.
what's going wrong with this? can provide the detailed codes for doing same?

Regards,

 

by: Aloha_TechnologyPosted on 2008-01-23 at 01:35:27ID: 20721976

Hi,
we don't get any kind of error message but the data generated for .CSV is not written into the .CSV but its get displayed on the html page while clicking on the link of Displaying CSV file.
we cant get prompt to save the generated .CSV file.
what's going wrong with this? can provide the detailed codes for doing same?

Regards,

 

by: Adam314Posted on 2008-01-23 at 07:25:14ID: 20724002

Instead of text/csv for content-type, try using application/x-download:

$r->content_type('application/x-download');
                                              
1:

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by: Aloha_TechnologyPosted on 2008-01-24 at 05:05:20ID: 20732584

Hi,

Still above changes not affected. we stuck with same problems.
any other solution for generating CSV?

thanks,

 

by: Adam314Posted on 2008-01-24 at 06:36:12ID: 20733294

Have you tried it with the CGI module instead of the Apache module:

use CGI;
my $cgi = new CGI;
print $cgi->header(-content=>'application/x-download');
                                              
1:
2:
3:

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by: Aloha_TechnologyPosted on 2008-01-26 at 00:16:38ID: 20748885

hi,
i want to know you one thing that my original code will generates the Prompt to save the CSV file randomly.
its seems behave like strange for some reports and some for very straight forwards.
There is nothing special case where its stop working.its totally unexpectedly works.

some time report has little bit data and csv not generated while in other case huge data in report and csv has been generated.
so no any specific reason behind the problem.
any suggestion would you have?
its very urgent to solve recently,so please provide as soon as possible.

Thanks,

 

by: Adam314Posted on 2008-01-28 at 07:22:19ID: 20759685

Try using the CGI module, just to see if it works...

use CGI;
my $cgi = new CGI;
print $cgi->header(-content=>'application/x-download',
                   '-Content-Disposition' => 'attachment; filename=hello.csv');
#print the CSV data

                                              
1:
2:
3:
4:
5:

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by: ahoffmannPosted on 2008-01-28 at 23:10:06ID: 20765923

> .. .CSV is not written into the .CSV but its get displayed on the html page ..
either you send the wrong HTTP header (see other given suggestions), or your browser is configured to handle the content-type you specified (i.e. text/csh/) as descripbed, like displaying as plain text.

Best you use a tool to watch the HTTP traffic, in particular the response headers are important, please post the complete request header, and the complete response header
(for eaxample using LiveHttpHeader in FF).

 

by: manav_mathurPosted on 2008-02-07 at 00:41:02ID: 20839149

>i want to know you one thing that my original code will generates the Prompt to save the CSV file randomly.

Does this happen on the same machine and browser?? Or is it that it prompts for save on a different browser and just displays on a different browser?

20120131-EE-VQP-002

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