[Koha-bugs] [Bug 13995] Proper Exception handling
bugzilla-daemon at bugs.koha-community.org
bugzilla-daemon at bugs.koha-community.org
Thu Jul 16 14:16:49 CEST 2015
http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=13995
Olli-Antti Kivilahti <olli-antti.kivilahti at jns.fi> changed:
What |Removed |Added
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Attachment #40717|0 |1
is obsolete| |
--- Comment #10 from Olli-Antti Kivilahti <olli-antti.kivilahti at jns.fi> ---
Created attachment 41018
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http://bugs.koha-community.org/bugzilla3/attachment.cgi?id=41018&action=edit
Bug 13995 - Proper Exception handling
Koha has issues with propagating errors and exceptions from the business layer
to the front-end. Using a more sophisticated system of named Exceptions we can
send more formal signals towards the user.
Catching different types of Exceptions makes for a more concise handling of
errors.
Also throwing/catching Exceptions is a industry standard and for a good reason.
There is no point for Koha to lurk behind.
USAGE:
try {
Koha::Exception::BadSystemPreference->throw(error => 'Syspref
DisplayIconsXSLT is not a valid boolean');
} catch {
if (blessed($_) && $_->isa('Koha::Exception::BadSystemPreference')) {
print $_->as_string();
warn $_->error, "\n", $_->trace->as_string, "\n";
}
else {
$_->rethrow();
}
}
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