allow for multipk
[dbsrgits/DBIx-Class-Journal.git] / lib / DBIx / Class / Schema / Journal.pm
index deb16f7..29aaefc 100644 (file)
@@ -15,35 +15,51 @@ __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');
 
 use strict;
 use warnings;
 
 
-sub _journal_schema_prototype
-{
+sub _journal_schema_prototype {
     my $self = shift;
-    if (my $proto = $self->__journal_schema_prototype)
-    {
+    if (my $proto = $self->__journal_schema_prototype) {
           return $proto;
     }
-    my $proto = $self->__journal_schema_prototype
-    (
-        DBIx::Class::Schema::Journal::DB->compose_namespace
-        (
-            (blessed($self)||$self) . '::Journal'
-        )
+    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);
+
+        $self->register_class($audit, $class)
+            if $self->journal_copy_sources;
+    }
+
     ## Create auditlog+history per table
     my %j_sources = map { $_ => 1 } $self->journal_sources
-                                      ? @{$self->journal_sources}
-                                      : $self->sources;
+       ? @{$self->journal_sources}
+       : $self->sources;
 
-    foreach my $s_name ($self->sources)
-    {
+    foreach my $s_name ($self->sources) {
         next unless($j_sources{$s_name});
         $self->create_journal_for($s_name => $proto);
         $self->class($s_name)->load_components($comp);
@@ -51,19 +67,15 @@ sub _journal_schema_prototype
     return $proto;
 }
 
-sub connection
-{
+sub connection {
     my $self = shift;
     my $schema = $self->next::method(@_);
 
     my $journal_schema = (ref $self||$self)->_journal_schema_prototype->clone;
 
-    if($self->journal_connection)
-    {
-        if($self->journal_storage_type)
-        {
-            $journal_schema->storage_type($self->journal_storage_type);
-        }
+    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 );
@@ -74,15 +86,14 @@ sub connection
 
     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";
+        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(!@{$self->journal_user || []})
-    {
+    if(!@{$self->journal_user || []}) {
         #warn "No Journal User set!"; # no need to warn, user_id is useful even without a rel
         return $schema;
     }
@@ -93,47 +104,105 @@ sub connection
     return $schema;
 }
 
-sub deploy
-{
-    my ( $self, $sqlt_args, @args ) = @_;
-
-    $self->next::method($sqlt_args, @args);
-
-    $self->journal_schema_deploy($sqlt_args, @args);
-}
-
-sub journal_schema_deploy
-{
-    my ( $self, $sqlt_args, @args ) = @_;
+sub journal_schema_deploy {
+    my $self = shift;
 
-    $self->_journal_schema->deploy( $sqlt_args, @args );
+    $self->_journal_schema->deploy(@_);
 }
 
-sub create_journal_for
-{
+sub create_journal_for {
     my ($self, $s_name, $journal_schema) = @_;
 
     my $source = $self->source($s_name);
 
     foreach my $audit (qw(AuditLog AuditHistory)) {
-        my $audit_source = join("", $s_name, $audit);
+        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::C3::Componentised->inject_base($class, "DBIx::Class::Schema::Journal::DB::$audit");
 
-        $class->journal_define_table($source);
+        $class->journal_define_table($source, blessed($journal_schema));
 
         $journal_schema->register_class($audit_source, $class);
 
-        if ($self->journal_copy_sources)
-        {
-            $self->register_class($audit_source, $class);
-        }
+        $self->register_class($audit_source, $class)
+            if $self->journal_copy_sources;
     }
 }
 
-sub txn_do
-{
+# XXX FIXME deploy is not idempotent :-(
+sub bootstrap_journal {
+    my $self = shift;
+    $self->journal_schema_deploy;
+    $self->prepopulate_journal;
+}
+
+# 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');
+
+            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++,
+                })
+            ) {
+                # 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 .. $#x)
+                ]);
+            }
+        }
+    });
+}
+
+sub txn_do {
     my ($self, $user_code, @args) = @_;
 
     my $jschema = $self->_journal_schema;
@@ -141,8 +210,7 @@ sub txn_do
     my $code = $user_code;
 
     my $current_changeset = $jschema->_current_changeset;
-    if ( !$current_changeset || $self->journal_nested_changesets )
-    {
+    if ( !$current_changeset || $self->journal_nested_changesets ) {
         my $current_changeset_ref = $jschema->_current_changeset_container;
 
         unless ( $current_changeset_ref ) {
@@ -168,23 +236,22 @@ sub txn_do
     return $self->next::method($code, @args);
 }
 
-sub changeset_user
-{
+sub changeset_user {
     my ($self, $userid) = @_;
 
-    return $self->_journal_schema->current_user() if(@_ == 1);
+    return $self->_journal_schema->current_user()
+       if @_ == 1;
 
     $self->_journal_schema->current_user($userid);
 }
 
-sub changeset_session
-{
+sub changeset_session {
     my ($self, $sessionid) = @_;
 
-    return $self->_journal_schema->current_session() if(@_ == 1);
+    return $self->_journal_schema->current_session()
+       if @_ == 1;
 
     $self->_journal_schema->current_session($sessionid);
 }
 
-
 1;