On Mon, Sep 12, 2011 at 8:01 AM, Roland Philibert <[email protected]>
wrote:
>
> I am trying to fetch data from a mysql database using a jQuery ajax method
> to populate a select list...and my question is: what is the recommended
> method in Catalyst to serialize/encode a DBIC class object into a JSON
> object, that I can then parse easily in a view with javascript?
I can't tell you what's recommended (I'm pretty new to Catalyst myself), but
I'm pretty happy with my generic solution.
#---- extend Catalyst::View::JSON.
# I got this idea from something on the CPAN.
package MyApp::View::JSON;
use Moose;
use JSON::XS ();
extends 'Catalyst::View::JSON';
# TODO: become smarter Mooser and delegate or something...
my $encoder = JSON::XS->new->utf8->pretty(0)->indent(0)
->allow_blessed(1)->convert_blessed(1);
sub encode_json {
my( $self, $c, $data ) = @_;
$encoder->encode( $data );
}
#---- create a result base class with a generic TO_JSON method:
package MyApp::Schema::DB::ResultBase;
use Moose;
use MooseX::NonMoose;
use namespace::autoclean;
extends 'DBIx::Class::Core';
sub TO_JSON {
return { $_[0]->get_inflated_columns };
}
1;
#---- result classes extend the base class
package MyApp::Schema::DB::Result::Example;
...
extends 'MyApp::Schema::DB::ResultBase';
...
#---- in controller methods to return JSON...
...
$c->stash(
current_view => 'JSON',
current_model => 'DB',
);
...
$c->stash(
json_data => [ $c->model()->... ],
);
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