一個AbstractController :: DoubleRenderError我在rspec的

的respond_to我得到這個Rails3中動作：一個AbstractController :: DoubleRenderError我在rspec的

def export 
    respond_to do |format| 
    format.tdl { render :xml => @template.export_as_tdl and return } 
    format.json { render :json => @template.export_as_json } 
    end 
end

和過濾器出口前：

def find_environment 
    @environment = KTEnvironment.find(params[:environment_id]) 
    raise HttpErrors::NotFound, _("Couldn't find environment '#{params[:environment_id]}'") if @environment.nil? 
    @environment 
end

這rspec的：

describe "export" do 
    it "should call export_as_json" do 
    @tpl.should_receive(:export_as_json) 

    get :export, :id => TEMPLATE_ID 
    end 

    it "should call export_as_tdl" do 
    @tpl.should_receive(:export_as_tdl) 

    get :export, :id => TEMPLATE_ID, :format => 'tdl' 
    end 
end

我還定義了以下MIME類型：

Mime::Type.register "application/tdl-xml", :tdl

當我嘗試運行我的RSpec的測試中，我經常收到：

1) Api::TemplatesController export should call export_as_tdl 
Failure/Error: get :export, :id => TEMPLATE_ID, :format => 'tdl' 
AbstractController::DoubleRenderError: 
    Render and/or redirect were called multiple times in this action. Please note that you may only call render OR redirect, and at most once per action. Also note that neither redirect nor render terminate execution of the action, so if you want to exit an action after redirecting, you need to do something like "redirect_to(...) and return". 
# ./app/controllers/api/api_controller.rb:135:in `render_exception' 
# ./app/controllers/api/api_controller.rb:133:in `render_exception' 
# ./app/controllers/api/api_controller.rb:22:in `__bind_1314974553_619675' 
# ./spec/controllers/api/templates_controller_spec.rb:178

我不知道發生了什麼事那裏。這是我的例外渲染代碼：

def render_wrapped_exception(status_code, ex) 
    logger.error "*** ERROR: #{ex.message} (#{status_code}) ***" 
    logger.error "REQUEST URL: #{request.fullpath}" 
    logger.error pp_exception(ex.original.nil? ? ex : ex.original) 
    orig_message = (ex.original.nil? && '') || ex.original.message 
    respond_to do |format| 
    format.json do 
     render :json => { 
     :errors => [ ex.message, orig_message ] 
     }, :status => status_code 
    end 
    format.all do 
     render :text => "#{ex.message} (#{orig_message})", 
     :status => status_code 
    end 
    end 
end

啊所以我的api_controller中的render_exception一般方法被調用。它看起來像：

def render_exception(status_code, exception) 
    logger.error pp_exception(exception) 
    respond_to do |format| 
    format.json { render :json => {:errors => [ exception.message ]}, :status => status_code } 
    format.all { render :text => exception.message, :status => status_code } 
    end 
end

來源

2011-09-02 lzap

你能告訴哪一行'templates_controller_spec.rb：178'和'api_controller.rb：22'是？ –

我瘋狂的猜測是，你的行爲不知何故引發了一個異常，這會混淆整個事情。你也可以在你的api控制器中發佈'render_exception'嗎？ –

已添加。在行動之前還有一個過濾器。還加了一個。 – lzap

嘗試禁用您的錯誤處理程序，根本原因應該自行出現。

來源

2011-09-02 15:32:26

一個AbstractController :: DoubleRenderError我在rspec的

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