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