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Man Pages


Manual Reference Pages  -  DANCER::ERROR (3)

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NAME

Dancer::Error - class for representing fatal errors

CONTENTS

VERSION

version 1.3138

SYNOPSIS



    # taken from send_file:
    use Dancer::Error;

    my $error = Dancer::Error->new(
        code    => 404,
        message => "No such file: `$path"
    );

    $error->render;



DESCRIPTION

With Dancer::Error you can throw reasonable-looking errors to the user instead of crashing the application and filling up the logs.

This is usually used in debugging environments, and it’s what Dancer uses as well under debugging to catch errors and show them on screen.

ATTRIBUTES

    code

The code that caused the error.

This is only an attribute getter, you’ll have to set it at new.

    title

The title of the error page.

This is only an attribute getter, you’ll have to set it at new.

    message

The message of the error page.

This is only an attribute getter, you’ll have to set it at new.

    exception

The exception that caused the error. If the error was not caused by an exception, returns undef. Exceptions are usually objects that inherit from Dancer::Exception.

This is only an attribute getter, you’ll have to set it at new.

METHODS/SUBROUTINES

    new

Create a new Dancer::Error object.

title

The title of the error page.

type

What type of error this is.

code

The code that caused the error.

message

The message that will appear to the user.

exception

The exception that will be useable by the rendering.

    backtrace

Create a backtrace of the code where the error is caused.

This method tries to find out where the error appeared according to the actual error message (using the message attribute) and tries to parse it (supporting the regular/default Perl warning or error pattern and the Devel::SimpleTrace output) and then returns an error-highlighted message.

    tabulate

Small subroutine to help output nicer.

    dumper

This uses Data::Dumper to create nice content output with a few predefined options.

    render

Renders a response using Dancer::Response.

    environment

A main function to render environment information: the caller (using get_caller), the settings and environment (using dumper) and more.

    get_caller

Creates a stack trace of callers.

    _censor

An internal method that tries to censor out content which should be protected.

dumper calls this method to censor things like passwords and such.

    _html_encode

Internal method to encode entities that are illegal in (X)HTML. We output as UTF-8, so no need to encode all non-ASCII characters or use a module. FIXME : this is not true any more, output can be any charset. Need fixing.

AUTHOR

Dancer Core Developers

COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by Alexis Sukrieh.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

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perl v5.20.3 DANCER::ERROR (3) 2015-06-12

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