lib/DBIx/Class/Schema/Journal.pm

   1 package DBIx::Class::Schema::Journal;
   2
   3 use base qw/DBIx::Class/;
   4
   5 use Scalar::Util 'blessed';
   6 use DBIx::Class::Schema::Journal::DB;
   7
   8 __PACKAGE__->mk_classdata('journal_storage_type');
   9 __PACKAGE__->mk_classdata('journal_connection');
  10 __PACKAGE__->mk_classdata('journal_sources'); ## [ source names ]
  11 __PACKAGE__->mk_classdata('journal_user'); ## [ class, field for user id ]
  12 __PACKAGE__->mk_classdata('_journal_schema');
  13
  14 sub throw_exception
  15 {
  16 }
  17
  18 sub exception_action
  19 {
  20     my $self = shift;
  21 #    print STDERR Carp::longmess;
  22
  23     $self->next::method(@_);
  24 }
  25
  26 sub connection
  27 {
  28     my $self = shift;
  29     $self->next::method(@_);
  30
  31 #   print STDERR join(":", $self->sources), "\n";
  32
  33     my $journal_schema = DBIx::Class::Schema::Journal::DB->connect(@{ $self->journal_connection || $self->storage->connect_info });
  34 #    print STDERR "conn", $journal_schema->storage->connect_info;
  35     if($self->journal_storage_type)
  36     {
  37         $journal_schema->storage_type($self->journal_storage_type);
  38     }
  39
  40     ## get our own private version of the journaling sources
  41    $self->_journal_schema($journal_schema->compose_namespace(blessed($self) . '::Journal'));
  42
  43     ## Create auditlog+history per table
  44     my %j_sources = @{$self->journal_sources} ? map { $_ => 1 } @{$self->journal_sources} : map { $_ => 1 } $self->sources;
  45     foreach my $s_name ($self->sources)
  46     {
  47         next unless($j_sources{$s_name});
  48         $self->create_journal_for($s_name);
  49         $self->class($s_name)->load_components('Journal');
  50 #        print STDERR "$s_name :", $self->class($s_name), "\n";
  51     }
  52
  53     ## Set up relationship between changeset->user_id and this schema's user
  54     if(!@{$self->journal_user})
  55     {
  56         warn "No Journal User set!";
  57         return;
  58     }
  59
  60     $self->_journal_schema->deploy();
  61     $self->_journal_schema->class('ChangeSet')->belongs_to('user', @{$self->journal_user});
  62     $self->_journal_schema->storage->disconnect();
  63 }
  64
  65 sub get_audit_log_class_name
  66 {
  67     my ($self, $sourcename) = @_;
  68
  69     return blessed($self->_journal_schema) . "::${sourcename}AuditLog";
  70 }
  71
  72 sub get_audit_history_class_name
  73 {
  74     my ($self, $sourcename) = @_;
  75
  76     return blessed($self->_journal_schema) . "::${sourcename}AuditHistory";
  77 }
  78
  79 sub create_journal_for
  80 {
  81     my ($self, $s_name) = @_;
  82
  83     my $source = $self->source($s_name);
  84     my $newclass = $self->get_audit_log_class_name($s_name);
  85     DBIx::Class::Componentised->inject_base($newclass, 'DBIx::Class::Schema::Journal::DB::AuditLog');
  86     $newclass->table(lc($s_name) . "_audit_log");
  87     $self->_journal_schema->register_class("${s_name}AuditLog", $newclass);
  88
  89
  90     my $histclass = $self->get_audit_history_class_name($s_name);
  91     DBIx::Class::Componentised->inject_base($histclass, 'DBIx::Class::Schema::Journal::DB::AuditHistory');
  92     $histclass->table(lc($s_name) . "_audit_history");
  93 #    $histclass->result_source_instance->name(lc($s_name) . "_audit_hisory");
  94     $histclass->add_columns(
  95                             map { $_ => $source->column_info($_) } $source->columns
  96                            );
  97
  98     $self->_journal_schema->register_class("${s_name}AuditHistory", $histclass);
  99 }
 100
 101 sub txn_do
 102 {
 103     my ($self, $code) = @_;
 104
 105     ## Create a new changeset, then run $code as a transaction
 106     my $cs = $self->_journal_schema->resultset('ChangeSet');
 107
 108     $self->txn_begin;
 109     my $changeset = $cs->create({ ( $self->_journal_schema->current_user() ? ( user_id => $self->_journal_schema->current_user()) : () ),
 110 #        user_id => $self->_journal_schema->current_user(),
 111         session_id => $self->_journal_schema->current_session(),
 112     });
 113     $self->_journal_schema->current_changeset($changeset->ID);
 114
 115     $self->next::method($code);
 116 }
 117
 118 1;