LedgerSMB/DBObject.pm



=head1 NAME

LedgerSMB::DBObject - LedgerSMB class for building objects from db relations

=head1 SYOPSIS

This module creates object instances based on LedgerSMB's in-database ORM.  

=head1 METHODS

=item find_method ($hashref, $function_name, @args)

=item merge ($hashref, @attrs)
copies @attrs from $hashref to $self.


=head1 Copyright (C) 2007, The LedgerSMB core team.
This file is licensed under the Gnu General Public License version 2, or at your
option any later version.  A copy of the license should have been included with
your software.

=back

=cut

package LedgerSMB::DBObject;
use LedgerSMB;
use strict;
no strict 'refs';
use warnings;

our @ISA = qw(LedgerSMB);

sub new {
    my $self = shift @_;
    my $lsmb = shift @_;
    if (! $lsmb->isa('LedgerSMB')){
        $self->error("Constructor called without LedgerSMB object arg");
    }

    $self = {};
    my $attr;
    for $attr (keys %{$lsmb}){
        $self->{$attr} = $lsmb->{$attr};
    }
    bless $self;
}


sub exec_method {
    my ($self) = shift @_;
    my ($funcname) = shift @_;

    my $query = 
        "SELECT proname, proargnames FROM pg_proc WHERE proname = ?";
    my $sth = $self->{dbh}->prepare($query);
    $sth->execute($funcname);
    my $ref;

    $ref = $sth->fetchrow_hashref('NAME_lc');
    my $args = $ref->{proargnames};
    $args =~ s/\{(.*)\}/$1/;
    my @proc_args = split /,/, $args;

    if (!$ref){ # no such function
        $self->error("No such function: ", $funcname);
        die;
    }
    my $m_name = $ref->{proname};
    my @call_args;

    if ($args){
        for my $arg (@proc_args){
            if ($arg =~ s/^in_//){
                push @call_args, $self->{$arg};
            }
        }
    }
    else {
        @call_args = @_;
    }
    $self->callproc($funcname, @call_args);
}

1;