1 files changed, 32 insertions, 0 deletions
diff --git a/railties/lib/rails_generator/generators/components/model_subclass/model_subclass_generator.rb b/railties/lib/rails_generator/generators/components/model_subclass/model_subclass_generator.rb
new file mode 100644
index 0000000000..e8ac3da2cd
--- /dev/null
+++ b/railties/lib/rails_generator/generators/components/model_subclass/model_subclass_generator.rb
@@ -0,0 +1,32 @@
+class ModelSubclassGenerator < Rails::Generator::NamedBase
+  default_options :skip_unit_test => false
+
+  def manifest
+    record do |m|
+      # Check for class naming collisions.
+      m.class_collisions class_name, "#{class_name}Test"
+
+      # Model and test directories.
+      m.directory File.join('app/models', class_path)
+      m.directory File.join('test/unit', class_path)
+
+      # Model class and unit test
+      m.template 'model.rb',      File.join('app/models', class_path, "#{file_name}.rb"),     :assigns => assigns
+      m.template 'unit_test.rb',  File.join('test/unit', class_path, "#{file_name}_test.rb"), :assigns => assigns
+
+    end
+  end
+
+  protected
+    def banner
+      "Usage: #{$0} #{spec.name} Subclass Parent"
+    end
+
+    def assigns
+      {:parent_class_name => parent_class_name}
+    end
+
+    def parent_class_name
+      @args.first.try(:camelize) || usage
+    end
+end