add SVG caching

diff --git a/lib/stemmaweb/Controller/Root.pm b/lib/stemmaweb/Controller/Root.pm
index de51958..23971b6 100644 (file)
--- a/lib/stemmaweb/Controller/Root.pm
+++ b/lib/stemmaweb/Controller/Root.pm
@@ -70,9 +70,11 @@ Returns the variant graph for the text specified at $textid, in SVG form.
 sub variantgraph :Local :Args(1) {
        my( $self, $c, $textid ) = @_;
        my $m = $c->model('Directory');
-       my $collation = $m->tradition( $textid )->collation;
-
+       my $tradition = $m->tradition( $textid );
+       my $collation = $tradition->collation;
+       my $needsave = !$collation->has_cached_svg;
        $c->stash->{'result'} = $collation->as_svg;
+       $m->save( $tradition );
        $c->forward('View::SVG');
 }