X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FStorage.pm;h=e5c7d45a8b68d727f40900d011a8cd364d91763d;hb=fd159e2ae6b4ac59be0107572345dbf53a821fde;hp=604ad5b7e8ed936799f5caaf2c35914dfd826fb4;hpb=89028f42595b587599191bad8d1b5fe17f11c131;p=dbsrgits%2FDBIx-Class.git diff --git a/lib/DBIx/Class/Storage.pm b/lib/DBIx/Class/Storage.pm index 604ad5b..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 perform an actual storage commit unless there's a DBIx::Class +transaction currently in effect (i.e. you called L). + =cut sub txn_commit { die "Virtual method!" } @@ -299,21 +303,25 @@ sub svp_rollback { die "Virtual method!" } =for comment -=head2 txn_scope_guard (EXPERIMENTAL) +=head2 txn_scope_guard -An alternative way of using transactions to C: +An alternative way of transaction handling based on +L: - my $txn = $storage->txn_scope_guard; + my $txn_guard = $storage->txn_scope_guard; $row->col1("val1"); $row->update; - $txn->commit; + $txn_guard->commit; -If a exception occurs, the transaction will be rolled back. This is still very -experiemental, and we are not 100% sure it is working right when nested. The -onus is on you as the user to make sure you dont forget to call -$C<$txn->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 call. In essence this is akin to +using a L/L pair, without having to worry +about calling L 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. =cut @@ -324,7 +332,7 @@ sub txn_scope_guard { =head2 sql_maker Returns a C object - normally an object of class -C. +C. =cut