Make erd patch for multi relationships and add merge png in output

1 files changed, 15 insertions, 0 deletions

diff --git a/config/initializers/relationship.rb b/config/initializers/relationship.rb
new file mode 100644
index 000000000..6f3fc29be
--- /dev/null
+++ b/config/initializers/relationship.rb
@@ -0,0 +1,15 @@
+require 'rails_erd/domain/relationship'
+
+module RailsERD
+  class Domain
+    class Relationship
+      class << self
+        private
+
+        def association_identity(association)
+          Set[association_owner(association), association_target(association)]
+        end
+      end
+    end
+  end
+end