initial commit

app/models/dunlop/collection_lookup.rb

@@ -0,0 +1,26 @@
+# This module creates a formalized way to facilitate collection lookups.
+# The default convention is that every workflow model has an associated
+# collection with it:
+#   WorkflowInstance::Scenario1::Collection
+#   WorkflowInstance::Scenario2::Collection
+#   OwnerInitialization::Scenario1::Collection
+#   etc...
+# But since we should be ready for unforseen circumstances a lookup method
+# should be used in stead of a hard namespace lookup.
+module Dunlop::CollectionLookup
+  extend ActiveSupport::Concern
+
+  # conveniance and proper code smell implementation to avoid self.class
+  # calls in places where it does not belong
+  def collection_class
+    self.class.collection
+  end
+
+  module ClassMethods
+    # conveniance and proper code smell implementation to avoid self::Collection
+    # calls in places where it does not belong
+    def collection
+      self::Collection
+    end
+  end
+end