#
# DESCRIPTION
# PerlORM - Object relational mapper (ORM) for Perl. PerlORM is Perl
# library that implements object-relational mapping. Its features are
# much similar to those of Java's Hibernate library, but interface is
# much different and easier to use.
#
# AUTHOR
# Alexey V. Akimov <akimov_alexey@sourceforge.net>
#
# COPYRIGHT
# Copyright (C) 2005-2006 Alexey V. Akimov
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
package ORM::MetapropBuilder;
$VERSION=0.8;
use ORM::Metaprop;
use Carp;
use overload
'-' => sub
{
if( $_[0]{need_value} )
{
(ref $_[0]{need_value})->stat
(
data => { value=>$_[0]{prop} },
filter => ( $_[0]{need_value}->M('id') == $_[0]{need_value}->id ),
error => $_[0]{error},
)->[0]{value};
}
else
{
$_[0]{prop};
}
},
fallback => 1;
##
## CONSTRUCTORS
##
sub AUTOLOAD
{
my $self = shift;
my %arg = @_;
if( ref $self )
{
my $prop = substr( $AUTOLOAD, rindex( $AUTOLOAD, '::' )+2 );
if( $self->{prop} )
{
if( $self->{prop}->_prop_ref_class )
{
if( $self->{prop}->_prop_ref_class->_has_prop( $prop ) )
{
unless( $self->{prop}->_expand( $prop, @_ ) )
{
croak "Failed to expand property '$prop' for ".$self->{prop}->_prop_ref_class;
}
}
else
{
$self->{prop} = $self->{prop}->$prop( @_ );
}
}
else
{
$self->{prop} = $self->{prop}->$prop( @_ );
}
}
}
else
{
my $class = $self;
$self =
{
prop => ORM::Metaprop->_new_flat( class => $arg{prop_class} ),
};
if( $arg{need_value} )
{
$self->{need_value} = $arg{need_value};
$self->{error} = $arg{error};
}
bless $self, $class;
#print "Init builder ($self).\n";
}
return $self;
}
sub DESTROY
{
}