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56 non-PAUSE users.

Andy Wardley
and 1 contributors

NAME

Template::Exception - Exception handling class module

SYNOPSIS

    use Template::Exception;

    my $exception = Template::Exception->new($type, $info);
    $type = $exception->type;
    $info = $exception->info;
    ($type, $info) = $exception->type_info;

    print $exception->as_string();

    $handler = $exception->select_handler(\@candidates);

DESCRIPTION

The Template::Exception module defines an object class for representing exceptions within the template processing life cycle. Exceptions can be raised by modules within the Template Toolkit, or can be generated and returned by user code bound to template variables.

Exceptions can be raised in a template using the THROW directive,

    [% THROW user.login 'no user id: please login' %]

or by calling the throw() method on the current Template::Context object,

    $context->throw('user.passwd', 'Incorrect Password');
    $context->throw('Incorrect Password');    # type 'undef'

or from Perl code by calling die() with a Template::Exception object,

    die (Template::Exception->new('user.denied', 'Invalid User ID'));

or by simply calling die() with an error string. This is automagically caught and converted to an exception of 'undef' type which can then be handled in the usual way.

    die "I'm sorry Dave, I can't do that";

Each exception is defined by its type and a information component (e.g. error message). The type can be any identifying string and may contain dotted components (e.g. 'foo', 'foo.bar', 'foo.bar.baz'). Exception types are considered to be hierarchical such that 'foo.bar' would be a specific type of the more general 'foo' type.

AUTHOR

Andy Wardley <abw@wardley.org>

http://wardley.org/

VERSION

2.69, distributed as part of the Template Toolkit version 2.18, released on 09 February 2007.

COPYRIGHT

  Copyright (C) 1996-2007 Andy Wardley.  All Rights Reserved.

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

SEE ALSO

Template, Template::Context