3

我有一个在生产环境中发生的问题,部署在 heroku 上。

Heroku 日志说:

[...]
Parameters: {"utf8"=>"✓",
             "authenticity_token"=>"...", 
             "users"=>{"name"=>"name", "email"=>"example@example.com", 
             "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"},
             "commit"=>"Join Us!"}

Processing by UsersController#create as HTML
Rendered notifier/new_user_creation.html.erb (0.7ms)
heroku[router]: POST stark-blabla-345.herokuapp.com/users dyno=web.1 queue=0 wait=0ms
service=333ms status=500 bytes=643
Completed 500 Internal Server Error in 284ms
app[web.1]: Errno::ENOENT (No such file or directory - /assets/):***   
app[web.1]: app/controllers/users_controller.rb:13:in `create

添加具有以下特征的 Mailer 组件后发生此错误:

class Notifier < ActionMailer::Base
  default from: "..."

  def new_user_creation(user)
    @user = user
    @url= "http://stark-blabla-345.herokuapp.com/users/
                  #{user.create_digitally_signed_remember_token}/confirm"
    mail to:user.email, subject: 'bla bla, complete the registration process'   

  end

end

使用以下模板 new_user_creation.html.erb :

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <title><%=t("confirm_account_creation")%></title>
      <style type="text/css">
          body{ background:#f1f1ee; }
         .title{font-size: 300%; font-family: Georgia, serif; font-weight:bold;}  
         .indented{margin-left:5%; padding:1%;}
      </style>
  </head>

<body>
  <table width="100%" id="background" border="0" cellpadding="0" cellspacing="0">
    <tr>
      <td>
        <img src="http://stark-blabla-345.herokuapp.com/assets/
          red_flower-a4105a7cc626711e8789b1c2b21777b6.png"
          align="middle">
        <span class="title"><%=t("base_title")%></span>
      </td>
   </tr>  

   <tr>
     <td>
       <p class="indented"><%=t("confirm_account_creation")%><p>
       <p class="indented"><a href="<%=@url%>">COMPLETE ACCOUNT CREATION PROCESS</a></p>
     </td>
   </tr>


  </table>  

</body>

</html>

用户控制器#create():

def create
  @user = User.new(params[:users])
  if @user.save 
    Notifier.new_user_creation(@user).deliver
    flash.now[:block] = t("users.create.created")
    render "confirm_registration"    
  else
    render 'new'
  end     
end

我的宝石文件:

source 'https://rubygems.org'
ruby '1.9.3'
gem 'rails', '3.2.6'
gem "heroku"
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
gem 'bootstrap-sass'
gem 'jquery-rails'
gem "paperclip", "2.7.0" # :git => "git://github.com/thoughtbot/paperclip.git"
gem 'bcrypt-ruby', '3.0.1'
gem 'nokogiri'
gem 'premailer-rails3'  

group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'uglifier', '>= 1.0.3'
end

group :test,:development do
  gem 'sqlite3'
  gem 'rspec-rails','2.9.0'
  gem 'execjs'
  gem 'annotate', '~> 2.4.1.beta'
end

group :test do
  gem 'spork' 
  gem 'cucumber-rails', require:false;
  gem 'capybara'
  gem 'database_cleaner'
  gem 'factory_girl'
  gem "launchy"
end

group :production do
  gem 'pg'
  gem 'thin'
end

production.rb 中有趣的部分:

MyApp::Application.configure do
  config.action_mailer.default_url_options = 
     { host: "stark-blabla-345.herokuapp.com" }
  config.action_mailer.raise_delivery_errors = false # the same with true 
  config.action_mailer.delivery_method = :smtp
  config.action_mailer.default :charset => "utf-8"

  config.action_mailer.smtp_settings = {
    address: "smtp.gmail.com",
    port: 587,
    domain: "stark-blabla-345.herokuapp.com",
    authentication: "plain",
    enable_starttls_auto: true,
    user_name: ENV["GMAIL_USERNAME"],
    password:  ENV["GMAIL_PASSWORD"]
  }

end
4

3 回答 3

3

这不是 Heroku 独有的问题。email.css当不存在或(从 premailer-rails 1.3.x 开始)内联style标记不存在时会引发此异常。

解决方案是添加到您的资产文件夹或在您的电子邮件 HTML 中email.css添加一个空白。<style type="text/css"> </style>

于 2012-07-23T18:07:07.047 回答
3

已经为此苦苦挣扎了几个小时,并认为我会为您的利益添加我的解决方案。

使用 premailer-rails3 (1.3.1)

我希望我的电子邮件 CSS 与引导程序样式匹配,所以我认为一种懒惰的方法是简单地使用<%= stylesheet_link_tag "application", :media => "all" %>,但这会导致找不到 /assets/ 问题。

所以我最终做了以下事情:

  1. 需要*= require_tree从我的 中删除application.css,这无论如何都是很好的做法,并且是主 css 文件所必需的
*= require_self
*= require <MyMainSiteCSS>
*/
  1. app/stylesheets/email.css使用以下内容创建
@import "bootstrap";
@import "bootstrap-responsive";
  1. 将我的电子邮件视图的标题更改为:
<head>
  <link href="email.css" media="all" rel="stylesheet" type="text/css">
</head>

所以,现在一切正常,我的电子邮件中有很好的引导程序样式。

于 2012-12-05T13:22:05.200 回答
0

你在用premailer-rails3宝石吗?我发现版本 1.2.0 导致了同样的问题。降级到 1.1.0 修复了它。希望有帮助!

于 2012-06-22T20:53:24.870 回答