[Catalyst] Error handling in Template render

David Schmidt davewood at gmx.at
Thu Sep 30 06:27:32 GMT 2010

If an exception is thrown it's usually put into the $c->error array.
When this error happens during rendering this doesn't seem to be the
case and I am trying to find out what Catalyst is doing.

In my example forward('render') causes the body to be filled with an
error array.

This is the body after forward('render')

$VAR1 = bless( [
                 bless( {
                          'msg' =>
'Physio::Schema::Result::Exercises::media(): DBI Exception:
DBD::Pg::st execute failed: ERROR:  column me.mediatype does not exist
LINE 1: ..., me.name, me.position, me.file, me.content_type, me.mediaty...
                                                             ^ [for
Statement "SELECT me.id, me.exercise_id, me.name, me.position,
me.file, me.content_type, me.mediatype, me.created, me.updated FROM
media me WHERE ( me.exercise_id = ? ) ORDER BY position" with
ParamValues: 1=\'1\'] at
/home/david/catalyst/Physio/root/templates/exercises/show.tt line 17
                        }, 'DBIx::Class::Exception' ),
               ], 'Template::Exception' );

How do I handle this kind of error?

sub end : Private {
    my ($self, $c) = @_;


    # display catalyst error page
    return if $c->debug;
    # in production log error and display nice error page
    if (@{$c->error}) {
        for my $error (@{$c->error}) {
        $c->stash(template => 'error.tt');

sub render : ActionClass('RenderView') {}

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