use strict;
use warnings;
-use Tie::IxHash;
-use base qw/Class::Data::Inheritable/;
-
-__PACKAGE__->mk_classdata('_primaries' => {});
+use base qw/DBIx::Class::Row/;
=head1 NAME
=head1 DESCRIPTION
-This class represents methods handling primary keys
-and depending on them.
+This class contains methods for handling primary keys and methods
+depending on them.
=head1 METHODS
-=over 4
-
=cut
-
sub _ident_cond {
my ($class) = @_;
- return join(" AND ", map { "$_ = ?" } keys %{$class->_primaries});
+ return join(" AND ", map { "$_ = ?" } $class->primary_columns);
}
sub _ident_values {
my ($self) = @_;
- return (map { $self->{_column_data}{$_} } keys %{$self->_primaries});
+ return (map { $self->{_column_data}{$_} } $self->primary_columns);
}
-sub set_primary_key {
- my ($class, @cols) = @_;
- my %pri;
- tie %pri, 'Tie::IxHash';
- %pri = map { $_ => {} } @cols;
- $class->_primaries(\%pri);
-}
+=head2 discard_changes
-sub find {
- my ($class, @vals) = @_;
- my $attrs = (@vals > 1 && ref $vals[$#vals] eq 'HASH' ? pop(@vals) : {});
- my @pk = keys %{$class->_primaries};
- $class->throw( "Can't find unless primary columns are defined" )
- unless @pk;
- my $query;
- if (ref $vals[0] eq 'HASH') {
- $query = $vals[0];
- } elsif (@pk == @vals) {
- my $ret = ($class->search_literal($class->_ident_cond, @vals, $attrs))[0];
- #warn "$class: ".join(', ', %{$ret->{_column_data}});
- return $ret;
- } else {
- $query = {@vals};
- }
- $class->throw( "Can't find unless all primary keys are specified" )
- unless (keys %$query >= @pk); # If we check 'em we run afoul of uc/lc
- # column names etc. Not sure what to do yet
- my $ret = ($class->search($query))[0];
- #warn "$class: ".join(', ', %{$ret->{_column_data}});
- return $ret;
-}
+Re-selects the row from the database, losing any changes that had
+been made.
+
+=cut
sub discard_changes {
my ($self) = @_;
delete $self->{_dirty_columns};
return unless $self->in_storage; # Don't reload if we aren't real!
- my ($reload) = $self->find($self->id);
+ my ($reload) = $self->result_source->resultset->find(map { $self->$_ } $self->primary_columns);
unless ($reload) { # If we got deleted in the mean-time
$self->in_storage(0);
return $self;
}
delete @{$self}{keys %$self};
@{$self}{keys %$reload} = values %$reload;
- #$self->store_column($_ => $reload->get_column($_))
- # foreach keys %{$self->_columns};
return $self;
}
+=head2 id
+
+Returns the primary key(s) for a row. Can't be called as
+a class method.
+
+=cut
+
sub id {
my ($self) = @_;
- $self->throw( "Can't call id() as a class method" ) unless ref $self;
+ $self->throw_exception( "Can't call id() as a class method" ) unless ref $self;
my @pk = $self->_ident_values;
return (wantarray ? @pk : $pk[0]);
}
-sub primary_columns {
- return keys %{shift->_primaries};
+=head2 ID
+
+Returns a unique id string identifying a row object by primary key.
+Used by L<DBIx::Class::CDBICompat::LiveObjectIndex> and
+L<DBIx::Class::ObjectCache>.
+
+=cut
+
+sub ID {
+ my ($self) = @_;
+ $self->throw_exception( "Can't call ID() as a class method" ) unless ref $self;
+ return undef unless $self->in_storage;
+ return $self->_create_ID(map { $_ => $self->{_column_data}{$_} } $self->primary_columns);
}
-1;
+sub _create_ID {
+ my ($self,%vals) = @_;
+ return undef unless 0 == grep { !defined } values %vals;
+ return join '|', ref $self || $self, $self->result_source->name, map { $_ . '=' . $vals{$_} } sort keys %vals;
+}
-=back
+sub ident_condition {
+ my ($self, $alias) = @_;
+ my %cond;
+ $cond{(defined $alias ? "${alias}.$_" : $_)} = $self->get_column($_) for $self->primary_columns;
+ return \%cond;
+}
+
+1;
=head1 AUTHORS