Mercurial > pub > Impl
diff Lib/Form/Filter/Regexp.pm @ 0:03e58a454b20
Создан репозитарий
author | Sergey |
---|---|
date | Tue, 14 Jul 2009 12:54:37 +0400 |
parents | |
children | 16ada169ca75 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Lib/Form/Filter/Regexp.pm Tue Jul 14 12:54:37 2009 +0400 @@ -0,0 +1,38 @@ +package Form::Filter::Regexp; +use strict; +use Common; +use Form::Filter; +use base qw(Form::Filter); + +BEGIN { + DeclareProperty Regexp => ACCESS_READ; +} + +sub CTOR { + my ($this,@args) = @_; + + $this->SUPER::CTOR(@args[0,1]); + + my $re = $args[2] or die new Exception('A regular expression is required'); + + $this->{$Regexp} = qr/$re/; +} + +sub SUPPORTED_CONTEXT { Form::Filter::CTX_SINGLE | Form::Filter::CTX_EXISTENT } + +sub Invoke { + my ($this,$object) = @_; + + if ($object->isa('Form::ValueItem')) { + my $re = $this->{$Regexp}; + if ($object->isEmpty or $object->Value =~ m/$re/) { + return new Form::FilterResult(State => Form::FilterResult::STATE_SUCCESS); + } else { + return new Form::FilterResult(Sate => Form::FilterResult::STATE_ERROR, Message => $this->FormatMessage($object), Target => $object ); + } + } else { + die new Exception('Only a value items can be verified against a regular expression'); + } +} + +1; \ No newline at end of file