/ 
Catalyst-View-Download-0.02
River stage one • 1 direct dependent • 1 total dependent
/ Catalyst::View::Download

NAME

Catalyst::View::Download

VERSION

Version 0.02

SYNOPSIS

# lib/MyApp/View/Download.pm
package MyApp::View::Download;
use base qw( Catalyst::View::Download );
1;

# lib/MyApp/Controller/SomeController.pm
sub example_action_1 : Local {
	my ($self, $c) = @_;

	my $content_type = $c->request->params->{'content_type'} || 'plain'; # 'plain' or 'csv'

	$c->header('Content-Type' => 'text/'.$content_type); # Set the content type so Catalyst::View::Download can determine how to process it.

	# Array reference of array references.
	my $data = [
		['col 1','col 2','col ...','col N'], # row 1
		['col 1','col 2','col ...','col N'], # row 2
		['col 1','col 2','col ...','col N'], # row ...
		['col 1','col 2','col ...','col N']  # row N
	];

	# If the chosen content_type is 'csv' then the render function of Catalyst::View::Download::CSV will be called which uses the 'csv' stash key
	$c->stash->{'csv'} = $data;

	# For plain text in this example we just dump the example array
	# Catalyst::View::Download::Plain will use either the 'plain' stash key or just pull from $c->response->body
	use Data::Dumper;
	$c->response->body( Dumper( $data ) )

	# Finally forward processing to the Download View
	$c->forward('MyApp::View::Download');
}

SUBROUTINES

process

This method will be called by Catalyst if it is asked to forward to a component without a specified action.

render

Allows others to use this view for much more fine-grained content generation.

CONFIG

default

Determines which Content-Type to use by default. Default: 'text/plain'

$c->view('MyApp::View::Download')->config('default' => 'text/plain');
content_type

A hash ref of hash refs. Each key in content_type is Content-Type that is handled by this view.

$c->view('MyApp::View::Download')->config->{'content_type'}{'text/csv'} = {
	'outfile' => 'somefile.csv',
	'module' => 'My::Module'
};

The Content-Type key refers to it's own hash of parameters to determine the actions thie view should take for that Content-Type.

'outfile' - The name and extenstion of the file that will display by default in the download dialog box.

'module' - The name of the module that will handle data output. If there is a plus symbol '+' at the beginning of the module name, this will indicate that the module is a Catalyst::View module will will add 'Catalyst::View::' to the beginning of the module name.

$c->view('MyApp::View::Download')->config->{'content_type'}{'text/csv'}{'module'} = '+Download::CSV'; # Module Loaded: Catalyst::View::Download::CSV

$c->view('MyApp::View::Download')->config->{'content_type'}{'text/csv'}{'module'} = 'My::Module::CSV'; # Module Loaded: My::Module::CSV

Content-Type Module Requirements

Any module set as 'the' module for a certain Content-Type needs to have a subroutine named 'render' that returns the content to output with the following parameters handled.

$c

The catalyst $c variable

$template

In case a template file is needed for the module. This view will pass $c->stash->{template} as this value.

$args

A list of arguments the module will use to process the data into content. This view will pass $c->stash as this value.

CURRENT CONTENT-TYPES SUPPORTED

text/csv

Catalyst::View::Download has the following default configuration for this Content-Type

$c->view('MyApp::View::Download')->config->{'content_type'}{'text/csv'} = {
	'outfile' => 'data.csv',
	'module' => '+Download::CSV'
};

See Catalyst::View::Download::CSV for more details.

text/plain

Catalyst::View::Download has the following default configuration for this Content-Type

$c->view('MyApp::View::Download')->config->{'default'} = 'text/plain';

$c->view('MyApp::View::Download')->config->{'content_type'}{'text/csv'} = {
	'outfile' => 'data.csv',
	'module' => '+Download::CSV'
};

See Catalyst::View::Download::Plain for more details.

AUTHOR

Travis Chase, <gaudeon at cpan.org>

BUGS

Please report any bugs or feature requests to bug-catalyst-view-download at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Catalyst-View-Download. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc Catalyst::View::Download

You can also look for information at:

SEE ALSO

Catalyst Catalyst::View

CONTRIBUTORS

ACKNOWLEDGEMENTS

Thanks to following people for their constructive comments and help:

J. Shirley
Jonathan Rockway

Thanks also to my company Ti4 Technologies for their financial support. http://www.ti4tech.com/

COPYRIGHT & LICENSE

Copyright 2008 Travis Chase, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.