Backout sybase changes

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / PK.pm

diff --git a/lib/DBIx/Class/PK.pm b/lib/DBIx/Class/PK.pm
index d093d93..cf8a194 100644 (file)
--- a/lib/DBIx/Class/PK.pm
+++ b/lib/DBIx/Class/PK.pm
@@ -20,38 +20,6 @@ depending on them.
 
 =cut
 
-sub _ident_cond {
-  my ($class) = @_;
-  return join(" AND ", map { "$_ = ?" } $class->primary_columns);
-}
-
-sub _ident_values {
-  my ($self) = @_;
-  return (map { $self->{_column_data}{$_} } $self->primary_columns);
-}
-
-=head2 discard_changes
-
-Re-selects the row from the database, losing any changes that had
-been made.
-
-=cut
-
-sub discard_changes {
-  my ($self) = @_;
-  delete $self->{_dirty_columns};
-  return unless $self->in_storage; # Don't reload if we aren't real!
-  my ($reload) = $self->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;
-  return $self;
-}
-
 =head2 id
 
 Returns the primary key(s) for a row. Can't be called as
@@ -67,12 +35,28 @@ sub id {
   return (wantarray ? @pk : $pk[0]);
 }
 
+sub _ident_values {
+  my ($self) = @_;
+  return (map { $self->{_column_data}{$_} } $self->primary_columns);
+}
+
 =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>.
 
+=over
+
+=item WARNING
+
+The default C<_create_ID> method used by this function orders the returned
+values by the alphabetical order of the primary column names, B<unlike>
+the L</id> method, which follows the same order in which columns were fed
+to L<DBIx::Class::ResultSource/set_primary_key>.
+
+=back
+
 =cut
 
 sub ID {
@@ -91,11 +75,21 @@ sub _create_ID {
     map { $_ . '=' . $vals{$_} } sort keys %vals;
 }
 
+=head2 ident_condition
+
+  my $cond = $result_source->ident_condition();
+
+  my $cond = $result_source->ident_condition('alias');
+
+Produces a condition hash to locate a row based on the primary key(s).
+
+=cut
+
 sub ident_condition {
   my ($self, $alias) = @_;
   my %cond;
-  $cond{(defined $alias ? "${alias}.$_" : $_)} = $self->get_column($_)
-    for $self->primary_columns;
+  my $prefix = defined $alias ? $alias.'.' : '';
+  $cond{$prefix.$_} = $self->get_column($_) for $self->primary_columns;
   return \%cond;
 }