From: Peter Rabbitson <ribasushi@cpan.org>
Date: Sun, 29 Mar 2009 23:05:37 +0000 (+0000)
Subject: Take experimental off TxnScopeGuard
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=6936e902c1291c14c8e73f9c9f016e5212ad4083;p=dbsrgits%2FDBIx-Class-Historic.git

Take experimental off TxnScopeGuard
---

diff --git a/lib/DBIx/Class/Schema.pm b/lib/DBIx/Class/Schema.pm
index cf7267d..4254b1e 100644
--- a/lib/DBIx/Class/Schema.pm
+++ b/lib/DBIx/Class/Schema.pm
@@ -617,7 +617,7 @@ sub txn_do {
   $self->storage->txn_do(@_);
 }
 
-=head2 txn_scope_guard (EXPERIMENTAL)
+=head2 txn_scope_guard
 
 Runs C<txn_scope_guard> on the schema's storage. See 
 L<DBIx::Class::Storage/txn_scope_guard>.
diff --git a/lib/DBIx/Class/Storage.pm b/lib/DBIx/Class/Storage.pm
index 604ad5b..eb87d4f 100644
--- a/lib/DBIx/Class/Storage.pm
+++ b/lib/DBIx/Class/Storage.pm
@@ -299,21 +299,25 @@ 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<txn_do>:
+An alternative way of transaction handling based on
+L<DBIx::Class::Storage::TxnScopeGuard>:
 
- 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</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
 
diff --git a/lib/DBIx/Class/Storage/TxnScopeGuard.pm b/lib/DBIx/Class/Storage/TxnScopeGuard.pm
index ca7cad7..e55691a 100644
--- a/lib/DBIx/Class/Storage/TxnScopeGuard.pm
+++ b/lib/DBIx/Class/Storage/TxnScopeGuard.pm
@@ -1,5 +1,4 @@
-package # Hide from pause for now - till we get it working
-  DBIx::Class::Storage::TxnScopeGuard;
+package DBIx::Class::Storage::TxnScopeGuard;
 
 use strict;
 use warnings;
@@ -47,7 +46,7 @@ __END__
 
 =head1 NAME
 
-DBIx::Class::Storage::TxnScopeGuard - Experimental
+DBIx::Class::Storage::TxnScopeGuard - Scope-based transaction handling
 
 =head1 SYNOPSIS
 
@@ -70,14 +69,15 @@ right thing with transactions in DBIx::Class.
 
 =head2 new
 
-Creating an instance of this class will start a new transaction. Expects a
+Creating an instance of this class will start a new transaction (by
+implicitly calling L<DBIx::Class::Storage/txn_begin>. Expects a
 L<DBIx::Class::Storage> object as its only argument.
 
 =head2 commit
 
 Commit the transaction, and stop guarding the scope. If this method is not
-called (i.e. an exception is thrown) and this object goes out of scope then
-the transaction is rolled back.
+called and this object goes out of scope (i.e. an exception is thrown) then
+the transaction is rolled back, via L<DBIx::Class::Storage/txn_rollback>
 
 =cut