1 package DBIx::Class::Storage::TxnScopeGuard;
5 use Carp::Clan qw/^DBIx::Class/;
8 my ($class, $storage) = @_;
11 bless [ 0, $storage ], ref $class || $class;
17 $self->[1]->txn_commit;
22 my ($dismiss, $storage) = @{$_[0]};
31 carp 'A DBIx::Class::Storage::TxnScopeGuard went out of scope without explicit commit or error. Rolling back.'
34 eval { $storage->txn_rollback };
35 my $rollback_exception = $@;
37 if ($rollback_exception && $rollback_exception !~ /DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION/) {
39 $exception = "Transaction aborted: ${exception} "
40 ."Rollback failed: ${rollback_exception}";
44 "********************* ROLLBACK FAILED!!! ********************",
45 "\nA rollback operation failed after the guard went out of scope.",
46 'This is potentially a disastrous situation, check your data for',
47 "consistency: $rollback_exception"
62 DBIx::Class::Storage::TxnScopeGuard - Scope-based transaction handling
67 my ($self, $schema) = @_;
69 my $guard = $schema->txn_scope_guard;
71 # Multiple database operations here
78 An object that behaves much like L<Scope::Guard>, but hardcoded to do the
79 right thing with transactions in DBIx::Class.
85 Creating an instance of this class will start a new transaction (by
86 implicitly calling L<DBIx::Class::Storage/txn_begin>. Expects a
87 L<DBIx::Class::Storage> object as its only argument.
91 Commit the transaction, and stop guarding the scope. If this method is not
92 called and this object goes out of scope (e.g. an exception is thrown) then
93 the transaction is rolled back, via L<DBIx::Class::Storage/txn_rollback>
99 L<DBIx::Class::Schema/txn_scope_guard>.
105 Inspired by L<Scope::Guard> by chocolateboy.
107 This module is free software. It may be used, redistributed and/or modified
108 under the same terms as Perl itself.