Commit | Line | Data |
dd018f09 |
1 | package # Hide from pause for now - till we get it working |
2 | DBIx::Class::Storage::TxnScopeGuard; |
1bc193ac |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
7 | sub new { |
8 | my ($class, $storage) = @_; |
9 | |
10 | $storage->txn_begin; |
11 | bless [ 0, $storage ], ref $class || $class; |
12 | } |
13 | |
14 | sub commit { |
15 | my $self = shift; |
16 | |
17 | $self->[1]->txn_commit; |
18 | $self->[0] = 1; |
19 | } |
20 | |
a778f387 |
21 | sub dismiss { |
22 | my $self = shift; |
23 | |
24 | $self->[0] = 1; |
25 | } |
26 | |
1bc193ac |
27 | sub DESTROY { |
28 | my ($dismiss, $storage) = @{$_[0]}; |
29 | |
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30 | return if $dismiss; |
31 | |
32 | my $exception = $@; |
a778f387 |
33 | Carp::cluck("A DBIx::Class:: went out of scope without explicit commit/dismiss") |
34 | unless $exception; |
35 | { |
36 | local $@; |
37 | eval { $storage->txn_rollback }; |
38 | my $rollback_exception = $@; |
39 | if($rollback_exception) { |
40 | my $exception_class = "DBIx::Class::Storage::NESTED_ROLLBACK_EXCEPTION"; |
41 | |
42 | $storage->throw_exception( |
43 | "Transaction aborted: ${exception}. " |
44 | . "Rollback failed: ${rollback_exception}" |
45 | ) unless $rollback_exception =~ /$exception_class/; |
46 | } |
3b7f3eac |
47 | } |
1bc193ac |
48 | } |
49 | |
50 | 1; |
51 | |
52 | __END__ |
53 | |
54 | =head1 NAME |
55 | |
56 | DBIx::Class::Storage::TxnScopeGuard |
57 | |
58 | =head1 SYNOPSIS |
59 | |
60 | sub foo { |
61 | my ($self, $schema) = @_; |
62 | |
63 | my $guard = $schema->txn_scope_guard; |
64 | |
65 | # Multiple database operations here |
66 | |
67 | $guard->commit; |
68 | } |
69 | |
70 | =head1 DESCRIPTION |
71 | |
72 | An object that behaves much like L<Scope::Guard>, but hardcoded to do the |
73 | right thing with transactions in DBIx::Class. |
74 | |
75 | =head1 METHODS |
76 | |
77 | =head2 new |
78 | |
79 | Creating an instance of this class will start a new transaction. Expects a |
80 | L<DBIx::Class::Storage> object as its only argument. |
81 | |
82 | =head2 commit |
83 | |
84 | Commit the transaction, and stop guarding the scope. If this method is not |
85 | called (i.e. an exception is thrown) and this object goes out of scope then |
86 | the transaction is rolled back. |
87 | |
88 | =cut |
89 | |
90 | =head1 SEE ALSO |
91 | |
92 | L<DBIx::Class::Schema/txn_scope_guard>. |
93 | |
94 | =head1 AUTHOR |
95 | |
96 | Ash Berlin, 2008. |
97 | |
98 | Insipred by L<Scope::Guard> by chocolateboy. |
99 | |
100 | This module is free software. It may be used, redistributed and/or modified |
101 | under the same terms as Perl itself. |
102 | |
103 | =cut |