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=head1 NAME

  RT::Attributes - collection of RT::Attribute objects

=head1 SYNOPSIS

  use RT::Attributes;
my $Attributes = new RT::Attributes($CurrentUser);

=head1 DESCRIPTION


=head1 METHODS

=cut


package RT::Attributes;

use strict;
no warnings qw(redefine);


sub _DoSearch {
    my $self = shift;
    $self->SUPER::_DoSearch();
    $self->_BuildAccessTable();
}


sub _BuildAccessTable {
    my $self = shift;
    delete $self->{'attr'};
    while (my $attr = $self->Next) {
        push @{$self->{'attr'}->{$attr->Name}}, $attr;
    }
}


sub _AttrHash {
    my $self = shift;
    $self->_DoSearch if ($self->{'must_redo_search'});
    unless ($self->{'attr'}) {
        $self->{'attr'}->{'__none'} = RT::Attribute->new($self->CurrentUser);
    }
    return ($self->{'attr'});
}

=head2 Names

Returns a list of the Names of all attributes for this object. 

=cut

sub Names {
    my $self = shift;
    my @keys =  keys %{$self->_AttrHash};
    return(@keys);


}

=head2 Named STRING

Returns an array of all the RT::Attribute objects with the name STRING

=cut

sub Named {
    my $self = shift;
    my $name = shift;
    my @attributes; 
    if ($self->_AttrHash) {
        @attributes = @{($self->_AttrHash->{$name}||[])};
    }
    return (@attributes);   
}

=head2 WithId ID

Returns the RT::Attribute objects with the id ID

XXX TODO XXX THIS NEEDS A BETTER ACL CHECK

=cut

sub WithId {
    my $self = shift;
    my $id = shift;

    my $attr = RT::Attribute->new($self->CurrentUser);
    $attr->LoadByCols( id => $id );
    return($attr);
}

=head2 DeleteEntry { Name =>   Content => , id => }

Deletes attributes with
    the matching name 
 and the matching content or id

If Content and id are both undefined, delete all attributes with
the matching name.

=cut


sub DeleteEntry {
    my $self = shift;
    my %args = ( Name => undef,
                 Content => undef,
                 id => undef,
                 @_);
    my $found = 0;
    foreach my $attr ($self->Named($args{'Name'})){ 
      if ((!defined $args{'id'} and !defined $args{'Content'})
          or (defined $args{'id'} and $attr->id eq $args{'id'})
          or (defined $args{'Content'} and $attr->Content eq $args{'Content'})) {
        my ($id, $msg) = $attr->Delete;
        return ($id, $msg) unless $id;
        $found = 1;
      }
    }
    return (0, "No entry found") unless $found;
    $self->_DoSearch();
    return (1, $self->loc('Attribute Deleted'));
}


# {{{ LimitToObject 

=head2 LimitToObject $object

Limit the Attributes to rights for the object $object. It needs to be an RT::Record class.

=cut

sub LimitToObject {
    my $self = shift;
    my $obj = shift;
    unless (defined($obj) && ref($obj) && UNIVERSAL::can($obj, 'id') && $obj->id) {
    return undef;
    }
    $self->Limit(FIELD => 'ObjectType', OPERATOR=> '=', VALUE => ref($obj), ENTRYAGGREGATOR => 'OR');
    $self->Limit(FIELD => 'ObjectId', OPERATOR=> '=', VALUE => $obj->id, ENTRYAGGREGATOR => 'OR', QUOTEVALUE => 0);

}

# }}}

1;