lib/rails_erd/diagram/graphviz.rb in rails-erd-1.4.6 vs lib/rails_erd/diagram/graphviz.rb in rails-erd-1.4.7

@@ -181,10 +181,10 @@
         GRAPH_ATTRIBUTES.each { |attribute, value| graph[attribute] = value }
         NODE_ATTRIBUTES.each  { |attribute, value| graph.node[attribute] = value }
         EDGE_ATTRIBUTES.each  { |attribute, value| graph.edge[attribute] = value }
 
         # Switch rank direction if we're creating a vertically oriented graph.
-        graph[:rankdir] = :TB if options.orientation == :vertical
+        graph[:rankdir] = (options.orientation == "vertical") ? :LR : :TB
 
         # Title of the graph itself.
         graph[:label] = "#{title}\\n\\n" if title
 
         # Setup notation options.