CGI::Session::ErrorHandler — error handling routines for CGI::Session
| Use Case | Command | Description |
|---|---|---|
| 🔧 Set error message | $self->set_error("message") | Sets an error message in the module's namespace; always returns undef |
| 🔍 Retrieve error message | CGI::Session::ErrorHandler->errstr() or $self->errstr() | Returns the last error message set by set_error(), or empty string if none |
| 🧩 Integrate into your driver | @ISA = qw( CGI::Session::ErrorHandler );
| Inherit this module to get standard error handling in your CGI::Session driver |
require CGI::Session::ErrorHandler;
@ISA = qw( CGI::Session::ErrorHandler );
sub some_method {
my $self = shift;
unless ( $some_condition ) {
return $self->set_error("some_method(): \$some_condition isn't met");
}
}
CGI::Session::ErrorHandler provides set_error() and errstr() methods for setting and accessing error messages from within CGI::Session's components. This method should be used by driver developers for providing CGI::Session-standard error handling routines for their code.
set_error($message) — Implicitly defines $pkg_name::errstr and sets its value to $message. Return value is always undef.errstr() — Returns whatever value was set by the most recent call to set_error(). If no message as has been set yet, the empty string is returned so the message can still concatenate without a warning.For support and licensing information see CGI::Session.
perl v5.22.1 — 2016-01-15 — CGI::Session::ErrorHandler(3pm)
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