Add namespace to aasm generator

- fix #328

lib/generators/aasm/aasm_generator.rb

@@ -3,8 +3,7 @@ require 'rails/generators/named_base'
 module AASM
   module Generators
     class AASMGenerator < Rails::Generators::NamedBase
-
-      source_root File.expand_path("../templates", __FILE__)
+      namespace "aasm"
       argument :column_name, type: :string, default: 'aasm_state'
 
       desc "Generates a model with the given NAME (if one does not exist) with aasm " <<

lib/generators/active_record/aasm_generator.rb

@@ -5,7 +5,7 @@ module ActiveRecord
   module Generators
     class AASMGenerator < ActiveRecord::Generators::Base
       include AASM::Generators::OrmHelpers
-
+      namespace "active_record:aasm"
       argument :column_name, type: :string, default: 'aasm_state'
 
       source_root File.expand_path("../templates", __FILE__)
@@ -16,11 +16,11 @@ module ActiveRecord
         else
           migration_template "migration.rb", "db/migrate/aasm_create_#{table_name}.rb"
         end
-      end 
+      end
 
       def generate_model
         invoke "active_record:model", [name], migration: false unless model_exists?
-      end 
+      end
 
       def inject_aasm_content
         content = model_contents

lib/generators/mongoid/aasm_generator.rb

@@ -5,20 +5,20 @@ module Mongoid
   module Generators
     class AASMGenerator < Rails::Generators::NamedBase
       include AASM::Generators::OrmHelpers
-
+      namespace "mongoid:aasm"
       argument :column_name, type: :string, default: 'aasm_state'
 
       def generate_model
         invoke "mongoid:model", [name] unless model_exists?
-      end 
+      end
 
       def inject_aasm_content
         inject_into_file model_path, model_contents, after: "include Mongoid::Document\n" if model_exists?
-      end 
+      end
 
       def inject_field_types
         inject_into_file model_path, migration_data, after: "include Mongoid::Document\n" if model_exists?
-      end 
+      end
 
       def migration_data
         "  field :#{column_name}"