/ 
Error-Helper-0.0.0
River stage one • 5 direct dependents • 6 total dependents
/ Error::Helper

NAME

Error::Helper - Provides some easy error related methods.

VERSION

Version 0.0.0

SYNOPSIS

Below is a example module using this.

    package Foo;
    
    use warnings;
    use strict;
    use base 'Error::Helper';
    
    sub new{
		my $arg=$_[1];

		my $self = {
			perror=>undef,
			error=>undef,
			errorString=>"",
		};
        bless $self;

		#error if $arg is set to "test"
        if( $arg eq "test" ){
			$self->{perror}=1;
			$self->{error}=2;
			$self->{errorString}='A value of "test" has been set';
			$self->warn;
			return $self;
        }  

		return undef;
    }

    sub foo{
		my $self=$_[0];
		my $a=$_[1];

		if( ! $self->errorblank ){
			return undef;
        }

		if( !defined( $a ) ){
			$self->{error}=1;
			$self->{errorString}='No value specified';
			$self->warn;
			return undef;
		}

		return 1;
    }

Below is a example script.

    use Foo;
    
    my $foo=Foo->new( $ARGV[0] );
    if( $foo->error ){
	    warn('error:'.$foo->error.': '.$foo->errorString);
        exit $foo->error;
    }
    
    $foo->foo($ARGV[1]);
    if( $foo->error ){
	    warn('error:'.$foo->error.': '.$foo->errorString);
        exit $foo->error;
    }

There are three required variables in the blessed hash.

$self->{error}

This contains the current error code.

$self->{errorString}

This contains a description of the current error.

$self->{perror}

This is set to true is a permanent error is present. If note, it needs set to false.

METHODS

error

Returns the current error code and true if there is an error.

If there is no error, undef is returned.

if($self->error){
            warn('error: '.$foo->error.":".$foo->errorString);
}

errorblank

This blanks the error storage and is only meant for internal usage.

It does the following.

If $self->{perror} is set, it will not be able to blank any current errors.

$self->{error}=undef;
$self->{errorString}="";

errorString

Returns the error string if there is one. If there is not, it will return ''.

if($self->error){
    warn('error: '.$self->error.":".$self->errorString);
}

warn

Throws a warn like error message based

$self->warn;

AUTHOR

Zane C. Bowers-Hadley, <vvelox at vvelox.net>

BUGS

Please report any bugs or feature requests to bug-error-helper at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Error-Helper. 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 Error::Helper

You can also look for information at:

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

Copyright 2011 Zane C. Bowers-Hadley.

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.