X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FResultSet.pm;h=1610eb11823ce43274bfa90a580b68964bce0119;hb=ed899df367fc90a6b30f1e17d0ea4e2bc2e094f6;hp=118496ecbbfdad4629e8ebe9cdbf45a0ae84fbc8;hpb=69a3916705dfcae6227bc744fdbb810d78ba2c45;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/ResultSet.pm b/lib/DBIx/Class/ResultSet.pm
index 118496e..1610eb1 100644
--- a/lib/DBIx/Class/ResultSet.pm
+++ b/lib/DBIx/Class/ResultSet.pm
@@ -607,6 +607,10 @@ of the resultset.
 
 sub single {
   my ($self, $where) = @_;
+  if(@_ > 2) {
+      $self->throw_exception('single() only takes search conditions, no attributes. You want ->search( $cond, $attrs )->single()');
+  }
+
   my $attrs = { %{$self->_resolved_attrs} };
   if ($where) {
     if (defined $attrs->{where}) {
@@ -1109,7 +1113,11 @@ is returned in list context.
 =cut
 
 sub all {
-  my ($self) = @_;
+  my $self = shift;
+  if(@_) {
+      $self->throw_exception("all() doesn't take any arguments, you probably wanted ->search(...)->all()");
+  }
+
   return @{ $self->get_cache } if $self->get_cache;
 
   my @obj;
@@ -2242,7 +2250,7 @@ sub _resolved_attrs {
   if (my $prefetch = delete $attrs->{prefetch}) {
     $prefetch = $self->_merge_attr({}, $prefetch);
     my @pre_order;
-    my $seen = $attrs->{seen_join} || {};
+    my $seen = { %{ $attrs->{seen_join} || {} } };
     foreach my $p (ref $prefetch eq 'ARRAY' ? @$prefetch : ($prefetch)) {
       # bring joins back to level of current class
       my @prefetch = $source->resolve_prefetch(
@@ -2398,8 +2406,12 @@ sub throw_exception {
 
 =head1 ATTRIBUTES
 
-The resultset takes various attributes that modify its behavior. Here's an
-overview of them:
+Attributes are used to refine a ResultSet in various ways when
+searching for data. They can be passed to any method which takes an
+C<\%attrs> argument. See L</search>, L</search_rs>, L</find>,
+L</count>.
+
+These are in no particular order:
 
 =head2 order_by
 
@@ -2492,7 +2504,7 @@ L</select> but adds columns to the selection.
 
 =over 4
 
-Indicates additional column names for those added via L</+select>.
+Indicates additional column names for those added via L</+select>. See L</as>.
 
 =back