有沒有可以在rails中設置'全局'flash消息的地方？

Question

我在控制器很高興設置閃光燈的消息是這樣的：

redirect_to root_path, error: 'This is a highly eloquent and specialised error message just for you, my iridescent, transcendent and all round marvellous bundle of joy! You are not allowed in here you cheeky chappy, you!' 

不過，我覺得我做了很多複製粘貼的，當涉及到刻錄功能規格來測試這些郵件是渲染：

context 'when user has eaten all the pies' do 
    let(:cheeky) { FactoryGirl.build(:cheeky_user) } 
    subject { page } 

    before do 
    log_in cheeky 
    click_link 'steal pies' 
    end 

    it_should_behave_like 'home page' 
    it{ should have_selector('.error', text: 'This is a highly eloquent and specialised error message just for you, my iridescent, transcendent and all round marvellous bundle of joy! You are not allowed in here you cheeky chappy, you!') } 
end 

它可以是一個痛苦時斷言，因爲我缺少一個字符會失敗，但越是這樣，當得到一堆因爲我已經調整了一些錯誤信息沒有規範的。

測試錯誤消息這可能是一個脆弱的規範的例子，但我想測試顯示正確的錯誤消息。

我真的希望能夠做到這一點：

#somewhere in rails 
ERROR_MSG_23 = 'This is a highly eloquent and specialised error message just for you, my iridescent, transcendent and all round marvellous bundle of joy! You are not allowed in here you cheeky chappy, you!' 

#controller 
redirect_to root_path, error: ERROR_MSG_23 

#spec 
context 'when user has eaten all the pies' do 
    let(:cheeky) { FactoryGirl.build(:cheeky_user) } 
    subject { page } 

    before do 
    log_in cheeky 
    click_link 'steal pies' 
    end 

    it_should_behave_like 'home page' 
    it{ should have_selector('.error', text: ERROR_MSG_23) } 
end 

是否有寶石的呢？或者這可以在香草欄中實施？

Answer 1

您可以使用I18n，像這樣：

en.yml：

en: 
    flash_messages: 
    message_1: 'This is a highly eloquent and specialised error message just for you, my iridescent, transcendent and all round marvellous bundle of joy! You are not allowed in here you cheeky chappy, you!' 

控制器：

redirect_to root_path, error: t('flash_messages.message_1') 

規格：

it{ should have_selector('.error', text: I18n.t('flash_messages.message_1') }