NAME

Handel::Exception - Exceptions used within Handel

SYNOPSIS

            

              
              
use Handel::Cart;
use Handel::Exception' qw(:try);
try {
    my $cart = Handel::Cart->new('junk crap');
} catch Handel::Exception::Argument with {
    print 'Passed the wrong arguments to method';
} catch Handel::Exception with {
    print 'Unknown issue with Handel';
} catch Error with {
    print 'Unhandled exception';
} otherwise {
    print 'aliens ate my exception';
};
            
          

DESCRIPTION

Handel::Exception subclasses Error and attempts to throw exceptions when unexpected things happen.

EXCEPTIONS

Handel::Exception

This is the base exception thrown in Handel. All other exceptions subclass Handel::Exception so it's possible to catch all Handel generated exceptions with a single catch statement.

            

              
              
try {
    ...
} catch Handel::Exception with {
    my $E = shift;
    print 'Something bad happened in Handel: ' . E->text;
} catch MyApplicationException with {
    print 'Something bad happened in MyApplication';
};
            
          

See Error for more information on how to use exceptions.

Handel::Exception::Constraint

This exception is thrown if a database constraint is violated. This is true for both raw DBI database constraint errors as well as field updates that don't pass constraints in Handel::Components::Constraints.

Handel::Exception::Validation

This exception is thrown if the validation performed by Handel::Components::Validation has failed. If the validation component returned a result object, that can be found in $E->results.

Handel::Exception::Storage

This exception is thrown if there are any configuration or setup errors in Handel::Storage.

Handel::Exception::Argument

This exception is thrown when an invalid or unexpected argument value is passed into methods.

Handel::Exception::Taglib

This exception is thrown when an unexpected error occurs within the AxKit taglibs.

METHODS

new

This returns a new Handel::Exception object. This is mostly used internally by Error. In most circumstances, you don't need to call new at all. Instead, simply use the throw syntax:

            

              
              
use Handel::Exceptions;
throw Handel::Exception::Taglib(
    -text => translate("Tag '[_1]' not valid inside of other Handel tags", $tag)
) if ($context[$#context] ne 'root');
            
          

details

Returns the details portion of the exception message if there are any.

results

Returns the data validation result errors from exceptions thrown by Handel::Components::Validation.

SEE ALSO

Error, Handel::Constraints

AUTHOR

            

              
              
Christopher H. Laco
CPAN ID: CLACO
claco@chrislaco.com
http://today.icantfocus.com/blog/
            
          

cpanm Handel

perl -MCPAN -e shell
install Handel