Auto annotate models on migration

lib/tasks/auto_annotate_models.rake

+if Rails.env.development?
+  task :set_annotation_options do
+    # You can override any of these by setting an environment variable of the
+    # same name.
+    Annotate.set_defaults(
+      'routes'                  => 'false',
+      'position_in_routes'      => 'before',
+      'position_in_class'       => 'before',
+      'position_in_test'        => 'before',
+      'position_in_fixture'     => 'before',
+      'position_in_factory'     => 'before',
+      'position_in_serializer'  => 'before',
+      'show_foreign_keys'       => 'true',
+      'show_indexes'            => 'false',
+      'simple_indexes'          => 'false',
+      'model_dir'               => 'app/models',
+      'root_dir'                => '',
+      'include_version'         => 'false',
+      'require'                 => '',
+      'exclude_tests'           => 'true',
+      'exclude_fixtures'        => 'true',
+      'exclude_factories'       => 'true',
+      'exclude_serializers'     => 'true',
+      'exclude_scaffolds'       => 'true',
+      'exclude_controllers'     => 'true',
+      'exclude_helpers'         => 'true',
+      'ignore_model_sub_dir'    => 'false',
+      'ignore_columns'          => nil,
+      'ignore_unknown_models'   => 'false',
+      'hide_limit_column_types' => 'integer,boolean',
+      'skip_on_db_migrate'      => 'false',
+      'format_bare'             => 'true',
+      'format_rdoc'             => 'false',
+      'format_markdown'         => 'false',
+      'sort'                    => 'false',
+      'force'                   => 'false',
+      'trace'                   => 'false',
+      'wrapper_open'            => nil,
+      'wrapper_close'           => nil,
+    )
+  end
+
+  Annotate.load_tasks
+end