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package DBIx::TransactionManager::Extended; |
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use 5.008001; |
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use strict; |
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use warnings; |
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our $VERSION = "0.02"; |
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use parent qw/DBIx::TransactionManager/; |
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use Carp qw/croak/; |
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use DBIx::TransactionManager::Extended::Txn; |
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3684
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# override |
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sub new { shift->SUPER::new(@_)->_initialize } |
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sub _initialize { |
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my $self = shift; |
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$self->{_in_commit_after_hook} = 0; |
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$self->{_context_data} = {}; |
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$self->{_hooks_before_commit} = []; |
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$self->{_hooks_after_commit} = []; |
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$self; |
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} |
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sub context_data { |
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my $self = shift; |
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croak 'CANNOT call context_data out of the transaction' unless $self->in_transaction; |
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return $self->{_context_data}; |
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} |
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# override |
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sub txn_scope { DBIx::TransactionManager::Extended::Txn->new(@_) } |
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# override |
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sub txn_commit { |
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my $self = shift; |
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return $self->SUPER::txn_commit() if @{ $self->active_transactions } != 1; |
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my $context_data = $self->{_context_data}; |
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my $hooks_before_commit = $self->{_hooks_before_commit}; |
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my $hooks_after_commit = $self->{_hooks_after_commit}; |
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if (@$hooks_before_commit) { |
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eval { $_->($context_data) for @$hooks_before_commit }; |
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if ($@) { |
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$self->txn_rollback(); |
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croak $@; |
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} |
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@$hooks_before_commit = (); |
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} |
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my $ret = eval { |
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$self->SUPER::txn_commit(); |
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}; |
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if ($@) { |
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$self->_reset_all(); |
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croak $@; |
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} |
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100
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if (@$hooks_after_commit) { |
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local $self->{_in_commit_after_hook} = $self->{_in_commit_after_hook} + 1; |
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if ($self->{_in_commit_after_hook} == 1) { |
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eval { $_->($context_data) for @$hooks_after_commit }; |
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if ($@) { |
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$self->_reset_all(); |
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croak $@; |
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} |
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@$hooks_after_commit = (); |
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} |
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} |
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%$context_data = (); |
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return $ret; |
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} |
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# override |
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sub txn_rollback { |
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my $self = shift; |
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$self->_reset_all(); |
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$self->SUPER::txn_rollback(); |
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} |
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sub _reset_all { |
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%{$_[0]->{_context_data}} |
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= @{$_[0]->{_hooks_before_commit}} |
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= @{$_[0]->{_hooks_after_commit}} |
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= (); |
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} |
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sub add_hook_before_commit { |
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my ($self, $hook) = @_; |
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croak 'CANNOT call add_hook_before_commit out of the transaction' unless $self->in_transaction; |
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push @{ $self->{_hooks_before_commit} } => $hook; |
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return $hook; |
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} |
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sub add_hook_after_commit { |
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my ($self, $hook) = @_; |
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croak 'CANNOT call add_hook_after_commit out of the transaction' unless $self->in_transaction; |
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push @{ $self->{_hooks_after_commit} } => $hook; |
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return $hook; |
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} |
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sub remove_hook_before_commit { |
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my ($self, $hook) = @_; |
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croak 'CANNOT call remove_hook_before_commit out of the transaction' unless $self->in_transaction; |
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_remove_hook($self->{_hooks_before_commit}, $hook); |
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} |
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sub remove_hook_after_commit { |
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my ($self, $hook) = @_; |
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croak 'CANNOT call remove_hook_after_commit out of the transaction' unless $self->in_transaction; |
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_remove_hook($self->{_hooks_after_commit}, $hook); |
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} |
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sub _remove_hook { |
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my ($hooks, $hook) = @_; |
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my $found; |
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for my $i (0..$#{$hooks}) { |
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if ($hook == $hooks->[$i]) { |
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$found = $i; |
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last; |
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} |
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} |
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splice @$hooks, $found, 1 if $found; |
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return $found ? $hook : undef; |
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} |
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1; |
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__END__ |