use Scalar::Util 'blessed';
use DBIx::Class::Schema::Journal::DB;
+use Class::C3::Componentised ();
__PACKAGE__->mk_classdata('journal_storage_type');
__PACKAGE__->mk_classdata('journal_connection');
+__PACKAGE__->mk_classdata('journal_deploy_on_connect');
__PACKAGE__->mk_classdata('journal_sources'); ## [ source names ]
__PACKAGE__->mk_classdata('journal_user'); ## [ class, field for user id ]
-__PACKAGE__->mk_classdata('_journal_schema');
+__PACKAGE__->mk_classdata('journal_copy_sources');
+__PACKAGE__->mk_classdata('__journal_schema_prototype');
+__PACKAGE__->mk_classdata('_journal_schema'); ## schema object for journal
+__PACKAGE__->mk_classdata('journal_component');
+__PACKAGE__->mk_classdata('journal_components');
+__PACKAGE__->mk_classdata('journal_nested_changesets');
+__PACKAGE__->mk_classdata('journal_prefix');
-sub connection
-{
- my $self = shift;
- $self->next::method(@_);
+use strict;
+use warnings;
- print STDERR join(":", $self->sources), "\n";
+our $VERSION = '0.01';
- my $journal_schema = DBIx::Class::Schema::Journal::DB->connect(@{ $self->journal_connection || $self->storage->connect_info });
-# print STDERR "conn", $journal_schema->storage->connect_info;
- if($self->journal_storage_type)
- {
- $journal_schema->storage_type($self->journal_storage_type);
+sub _journal_schema_prototype {
+ my $self = shift;
+ if (my $proto = $self->__journal_schema_prototype) {
+ return $proto;
}
+ my $c = blessed($self)||$self;
+ my $journal_schema_class = "${c}::_JOURNAL";
+ Class::C3::Componentised->inject_base($journal_schema_class, 'DBIx::Class::Schema::Journal::DB');
+ $journal_schema_class->load_components($self->journal_components)
+ if $self->journal_components;
+ my $proto = $self->__journal_schema_prototype (
+ $journal_schema_class->compose_namespace( $c.'::Journal')
+ );
+
+
+ my $comp = $self->journal_component || "Journal";
+
+ my $prefix = $self->journal_prefix || '';
+ foreach my $audit (qw(ChangeSet ChangeLog)) {
+ my $class = blessed($proto) . "::$audit";
+
+ Class::C3::Componentised->inject_base($class, "DBIx::Class::Schema::Journal::DB::$audit");
+
+ $class->journal_define_table(blessed($proto), $prefix);
+
+ $proto->register_class($audit, $class);
- ## get our own private version of the journaling sources
- $self->_journal_schema($journal_schema->compose_namespace(blessed($self) . '::Journal'));
+ $self->register_class($audit, $class)
+ if $self->journal_copy_sources;
+ }
## Create auditlog+history per table
- my %j_sources = @{$self->journal_sources} ? map { $_ => 1 } @{$self->journal_sources} : map { $_ => 1 } $self->sources;
- foreach my $s_name ($self->sources)
- {
+ my %j_sources = map { $_ => 1 } $self->journal_sources
+ ? @{$self->journal_sources}
+ : $self->sources;
+
+ foreach my $s_name ($self->sources) {
next unless($j_sources{$s_name});
- $self->create_journal_for($s_name);
- $self->class($s_name)->load_components('Journal');
-# print STDERR "$s_name :", $self->class($s_name), "\n";
+ $self->create_journal_for($s_name => $proto);
+ $self->class($s_name)->load_components($comp);
+ }
+ return $proto;
+}
+
+sub connection {
+ my $self = shift;
+ my $schema = $self->next::method(@_);
+
+ my $journal_schema = (ref $self||$self)->_journal_schema_prototype->clone;
+
+ if($self->journal_connection) {
+ $journal_schema->storage_type($self->journal_storage_type)
+ if $self->journal_storage_type;
+ $journal_schema->connection(@{ $self->journal_connection });
+ } else {
+ $journal_schema->storage( $schema->storage );
}
+ $self->_journal_schema($journal_schema);
+
+
+ if ( $self->journal_nested_changesets ) {
+ $self->_journal_schema->nested_changesets(1);
+ die 'FIXME nested changeset schema not yet supported... add parent_id to ChangeSet here';
+ }
+
+ $self->journal_schema_deploy()
+ if $self->journal_deploy_on_connect;
+
## Set up relationship between changeset->user_id and this schema's user
- if(!@{$self->journal_user})
- {
- warn "No Journal User set!";
- return;
+ if(!@{$self->journal_user || []}) {
+ #warn "No Journal User set!"; # no need to warn, user_id is useful even without a rel
+ return $schema;
}
- $self->_journal_schema->deploy();
$self->_journal_schema->class('ChangeSet')->belongs_to('user', @{$self->journal_user});
$self->_journal_schema->storage->disconnect();
-}
-sub get_audit_log_class_name
-{
- my ($self, $sourcename) = @_;
-
- return blessed($self->_journal_schema) . "::${sourcename}AuditLog";
+ return $schema;
}
-sub get_audit_history_class_name
-{
- my ($self, $sourcename) = @_;
+sub journal_schema_deploy {
+ my $self = shift;
- return blessed($self->_journal_schema) . "::${sourcename}AuditHistory";
+ $self->_journal_schema->deploy(@_);
}
-sub create_journal_for
-{
- my ($self, $s_name) = @_;
+sub create_journal_for {
+ my ($self, $s_name, $journal_schema) = @_;
my $source = $self->source($s_name);
- my $newclass = $self->get_audit_log_class_name($s_name);
- DBIx::Class::Componentised->inject_base($newclass, 'DBIx::Class::Schema::Journal::DB::AuditLog');
- $newclass->table(lc($s_name) . "_audit_log");
- $self->_journal_schema->register_class("${s_name}AuditLog", $newclass);
-
-
- my $histclass = $self->get_audit_history_class_name($s_name);
- DBIx::Class::Componentised->inject_base($histclass, 'DBIx::Class::Schema::Journal::DB::AuditHistory');
- $histclass->table(lc($s_name) . "_audit_history");
-# $histclass->result_source_instance->name(lc($s_name) . "_audit_hisory");
- $histclass->add_columns(
- map { $_ => $source->column_info($_) } $source->columns
- );
-
- $self->_journal_schema->register_class("${s_name}AuditHistory", $histclass);
+
+ foreach my $audit (qw(AuditLog AuditHistory)) {
+ my $audit_source = $s_name.$audit;
+ my $class = blessed($journal_schema) . "::$audit_source";
+
+ Class::C3::Componentised->inject_base($class, "DBIx::Class::Schema::Journal::DB::$audit");
+
+ $class->journal_define_table($source, blessed($journal_schema));
+
+ $journal_schema->register_class($audit_source, $class);
+
+ $self->register_class($audit_source, $class)
+ if $self->journal_copy_sources;
+ }
+}
+
+# XXX FIXME deploy is not idempotent :-(
+sub bootstrap_journal {
+ my $self = shift;
+ $self->journal_schema_deploy;
+ $self->prepopulate_journal;
}
-sub txn_do
-{
- my ($self, $code) = @_;
+# copy data from original schema sources into the journal as inserts in one
+# changeset, so that later deletes will not fail to be journalled.
+sub prepopulate_journal {
+ my $self = shift;
+ my $schema = $self;
+
+ # woah, looks like prepopulate has already run?
+ return if $schema->_journal_schema->resultset('ChangeSet')->count != 0;
+
+ # using our own overridden txn_do (see below) will create a changeset
+ $schema->txn_do( sub {
+ my %j_sources = map { $_ => 1 } $self->journal_sources
+ ? @{$self->journal_sources}
+ : $self->sources;
+
+ my $j_schema = $self->_journal_schema;
+ my $changelog_rs = $j_schema->resultset('ChangeLog');
+ my $chs_id = $j_schema->current_changeset;
+
+ foreach my $s_name ($self->sources) {
+ next unless $j_sources{$s_name};
+
+ my $from_rs = $schema->resultset($s_name);
+ my @pks = $from_rs->result_source->primary_columns;
+ $from_rs->result_class('DBIx::Class::ResultClass::HashRefInflator');
- ## Create a new changeset, then run $code as a transaction
- my $cs = $self->_journal_schema->resultset('ChangeSet');
- my $changeset = $cs->create({
- user_id => $self->_journal_schema->current_user(),
- session_id => $self->_journal_schema->current_session(),
+ my $to_rs = $j_schema->resultset("${s_name}AuditHistory");
+ my $log_rs = $j_schema->resultset("${s_name}AuditLog");
+
+ my $page = 1;
+ while (
+ my @x = $from_rs->search(undef, {
+ rows => 1_000,
+ page => $page++,
+ result_class => 'DBIx::Class::ResultClass::HashRefInflator',
+ })
+ ) {
+ # get some number of change log IDs to be generated for this page
+ my @log_ids = map $_->id,
+ $changelog_rs->populate([
+ map +{ changeset_id => $chs_id }, (0 .. $#x)
+ ]);
+
+
+ my @datas;
+ for my $idx (0 .. $#x ) {
+ push @datas, {
+ create_id => $log_ids[$idx],
+ map { $_ => $x[$idx]->{$_} } @pks,
+ }
+ }
+ # create the audit log entries for the rows in this page
+ $log_rs->populate([@datas]);
+
+ # now populate the audit history
+ $to_rs->populate([
+ map +{
+ %{$x[$_]},
+ audit_change_id => $log_ids[$_],
+ }, (0 .. $#x)
+ ]);
+ }
+ }
});
- $self->_journal_schema->current_changeset($changeset->ID);
+}
+
+sub txn_do {
+ my ($self, $user_code, @args) = @_;
+
+ my $jschema = $self->_journal_schema;
+
+ my $code = $user_code;
+
+ my $current_changeset = $jschema->_current_changeset;
+ if ( !$current_changeset || $self->journal_nested_changesets ) {
+ my $current_changeset_ref = $jschema->_current_changeset_container;
+
+ unless ( $current_changeset_ref ) {
+ # this is a hash because scalar refs can't be localized
+ $current_changeset_ref = { };
+ $jschema->_current_changeset_container($current_changeset_ref);
+ }
+
+ # wrap the thunk with a new changeset creation
+ $code = sub {
+ my $changeset = $jschema->journal_create_changeset( parent_id => $current_changeset );
+ local $current_changeset_ref->{changeset} = $changeset->id;
+ $user_code->(@_);
+ };
+
+ }
+
+ if ( $jschema->storage != $self->storage ) {
+ my $inner_code = $code;
+ $code = sub { $jschema->txn_do($inner_code, @_) };
+ }
+
+ return $self->next::method($code, @args);
+}
+
+sub changeset_user {
+ my ($self, $userid) = @_;
+
+ return $self->_journal_schema->current_user()
+ if @_ == 1;
+
+ $self->_journal_schema->current_user($userid);
+}
+
+sub changeset_session {
+ my ($self, $sessionid) = @_;
+
+ return $self->_journal_schema->current_session()
+ if @_ == 1;
- $self->next::method($code);
+ $self->_journal_schema->current_session($sessionid);
}
1;
projects / dbsrgits/DBIx-Class-Journal.git / blobdiff