X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage.pm;h=e5c7d45a8b68d727f40900d011a8cd364d91763d;hb=0a4b8fe0bec137ad4158b5e984cdd38c3e02a50a;hp=e57a48ba7121bb0d1fa0d641c31851791e6a53ed;hpb=243a6b72cfb2a6f2ccfcd84b665f1880790e2ff9;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Storage.pm b/lib/DBIx/Class/Storage.pm
index e57a48b..e5c7d45 100644
--- a/lib/DBIx/Class/Storage.pm
+++ b/lib/DBIx/Class/Storage.pm
@@ -4,6 +4,7 @@ use strict;
 use warnings;
 
 use base qw/DBIx::Class/;
+use mro 'c3';
 
 use Scalar::Util qw/weaken/;
 use Carp::Clan qw/^DBIx::Class/;
@@ -248,6 +249,9 @@ sub txn_begin { die "Virtual method!" }
 
 Issues a commit of the current transaction.
 
+It does I<not> perform an actual storage commit unless there's a DBIx::Class
+transaction currently in effect (i.e. you called L</txn_begin>).
+
 =cut
 
 sub txn_commit { die "Virtual method!" }
@@ -301,7 +305,23 @@ sub svp_rollback { die "Virtual method!" }
 
 =head2 txn_scope_guard
 
-Return an object that does stuff.
+An alternative way of transaction handling based on
+L<DBIx::Class::Storage::TxnScopeGuard>:
+
+ my $txn_guard = $storage->txn_scope_guard;
+
+ $row->col1("val1");
+ $row->update;
+
+ $txn_guard->commit;
+
+If an exception occurs, or the guard object otherwise leaves the scope
+before C<< $txn_guard->commit >> is called, the transaction will be rolled
+back by an explicit L</txn_rollback> call. In essence this is akin to
+using a L</txn_begin>/L</txn_commit> pair, without having to worry
+about calling L</txn_rollback> at the right places. Note that since there
+is no defined code closure, there will be no retries and other magic upon
+database disconnection. If you need such functionality see L</txn_do>.
 
 =cut
 
@@ -312,7 +332,7 @@ sub txn_scope_guard {
 =head2 sql_maker
 
 Returns a C<sql_maker> object - normally an object of class
-C<DBIC::SQL::Abstract>.
+C<DBIx::Class::SQLAHacks>.
 
 =cut
 
@@ -438,15 +458,6 @@ only.
 
 sub select_single { die "Virtual method!" }
 
-=head2 reload_row ($row)
-
-given a L<DBIx::Class::Row> object, loads and returns the matching version from
-storage.  Does not effect the existing row object.
-
-=cut
-
-sub reload_row { die "Virtual method!" }
-
 =head2 columns_info_for
 
 Returns metadata for the given source's columns.  This