Rails：完全被delayed_job困扰。 在任何地方都没有收到
我正在尝试使用collectiveidea的delayed_job在Rails 3应用程序中发送邮件。 如果我尝试定期发送邮件（.deliver）它工作正常，但一旦我切换到延迟工作，事情就会崩溃。
我在delayed_job mysql表中得到的标准错误是：
{undefined方法`name’代表nil：NilClass ……
其中’name’是邮件程序视图中的第一个参数（@ contact.name）。 如果我再次使用delayed_job，这可以正常工作。
如果我删除视图中对@contact的所有引用，我会得到
{发送邮件所需的发件人（Return-Path，Sender或From）
简而言之，它似乎根本不理解任何论据。
以下所有相关代码 – 如果有人对此有任何建议，将非常感谢
CONTROLLER
def sendmail @contact = Contact.new(params[:contact]) if @contact.save ContactMailer.delay.contact_mail(@contact) flash[:notice] = 'Your message has been successfully sent' redirect_to root_path else render :action => 'index' end end MAILER：
class ContactMailer "my@email.address" def contact_mail(contact) @contact = contact mail(:to => 'my@email.address', :subject => 'Contact Form Query', :from => 'my@email.address', :content_type => 'text/plain') end handle_asynchronously :contact_mail, :run_at => Proc.new { 2.seconds.from_now } end
MAILER VIEW：
You have received a new query: ----------------------------------- ----------------------- -----------------------
初始化：
Delayed::Worker.destroy_failed_jobs = false Delayed::Worker.max_run_time = 5.weeks
最后，完整的错误消息：
{undefined method `name' for nil:NilClass /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.0/lib/active_support/whiny_nil.rb:48:in `method_missing' /Users/john/Websites/Rails/InDevelopment/connectted/app/views/contact_mailer/contact_mail.html.erb:4:in `_app_views_contact_mailer_contact_mail_html_erb___3386534441642202773_2166008980__4301703149293725172' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/action_view/template.rb:135:in `block in render' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.0/lib/active_support/notifications.rb:54:in `instrument' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/action_view/template.rb:127:in `render' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/action_view/render/rendering.rb:59:in `block in _render_template' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.0/lib/active_support/notifications.rb:52:in `block in instrument' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.0/lib/active_support/notifications/instrumenter.rb:21:in `instrument' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.0/lib/active_support/notifications.rb:52:in `instrument' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/action_view/render/rendering.rb:56:in `_render_template' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/action_view/render/rendering.rb:26:in `render' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/abstract_controller/rendering.rb:114:in `_render_template' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/abstract_controller/rendering.rb:108:in `render_to_body' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/abstract_controller/rendering.rb:101:in `render_to_string' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/lib/abstract_controller/rendering.rb:92:in `render' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/deprecated_api.rb:111:in `render' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/old_api.rb:210:in `block in create_parts' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/old_api.rb:208:in `each' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/old_api.rb:208:in `create_parts' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/deprecated_api.rb:143:in `create_parts' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/old_api.rb:77:in `process' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/base.rb:446:in `process' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/base.rb:441:in `initialize' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/base.rb:425:in `new' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/actionmailer-3.0.0/lib/action_mailer/base.rb:425:in `method_missing' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/performable_mailer.rb:6:in `perform' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/backend/base.rb:83:in `invoke_job' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:119:in `block (2 levels) in run' /Users/john/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/timeout.rb:57:in `timeout' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed /worker.rb:119:in `block in run' /Users/john/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/benchmark.rb:309:in `realtime' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:118:in `run' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:176:in `reserve_and_run_one_job' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:103:in `block in work_off' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:102:in `times' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:102:in `work_off' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:77:in `block (2 levels) in start' /Users/john/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/benchmark.rb:309:in `realtime' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:76:in `block in start' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:73:in `loop' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/worker.rb:73:in `start' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/command.rb:100:in `run' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/command.rb:79:in `block in run_process' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/application.rb:250:in `call' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/application.rb:250:in `block in start_proc' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/daemonize.rb:199:in `call' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/daemonize.rb:199:in `call_as_daemon' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/application.rb:254:in `start_proc' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/application.rb:294:in `start' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/controller.rb:70:in `run' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons.rb:193:in `block in run_proc' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/cmdline.rb:112:in `call' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons/cmdline.rb:112:in `catch_exceptions' /Users/john/.rvm/gems/ruby-1.9.2-p0/gems/daemons-1.1.0/lib/daemons.rb:192:in `run_proc' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/command.rb:78:in `run_process' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/command.rb:72:in `block in daemonize' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/command.rb:70:in `times' /Users/john/.rvm/gems/ruby-1.9.2-p0/bundler/gems/delayed_job-c933ffcd776a/lib/delayed/command.rb:70:in `daemonize' script/delayed_job:5:in `' |
问题在于邮件中的代码使用对象而不是对象id：
def contact_mail(contact) @contact = contact mail(:to => 'my@email.address', :subject => 'Contact Form Query', :from => 'my@email.address', :content_type => 'text/plain') end
你应该改为：
def contact_mail(contact_id) @contact = Contact.find(contact_id) mail(:to => 'my@email.address', :subject => 'Contact Form Query', :from => 'my@email.address', :content_type => 'text/plain') end
切勿将实际对象传递给邮件程序。 只需传递id并在处理时检索它们。
我有同样的问题，并通过将所有属性移动到实例变量来修复它。 所以，在视图中：
<%= @contact.name %> <%= @contact.business %> <%= @contact.phone %>
变为：
<%= @name %> <%= @business %> <%= @phone %>
我只是在邮件程序方法中查找了实例变量。 所以，在邮件中：
def contact_mail(contact) @contact = contact mail(:to => 'my@email.address', :subject => 'Contact Form Query', :from => 'my@email.address', :content_type => 'text/plain') end
变为：
def contact_mail(contact) @name = contact.name @business = contact.business @phone = contact.phone mail(:to => 'my@email.address', :subject => 'Contact Form Query', :from => 'my@email.address', :content_type => 'text/plain') end
为什么不起作用？ 不确定，我想它与一些ActionMailer伏都教有关。
如何让它工作？ 摘要将延迟的工作分成另一类。 有延迟的方法只是发送电子邮件; 这意味着电子邮件的呈现是实时完成的，但发送的时间是延迟的。 这应该解决您的问题并完成电子邮件的异步发送。
嘿，这可能很遥远，但你没有向你的MAILER发送任何参数。 这是我的referenced_email.rb的副本，我保留在我的lib / dir中。 我用delayed_job调用它：
#my controller Delayed::Job.enqueue ReferredEmail.new(params[:subject], params[:editor1]) #Reffered_Email.rb class ReferredEmail < Struct.new(:subject, :editor1) def perform (CardReferral.all.map(&:email) - CardSignup.all.map(&:email)).each do |cf| @cf = CardReferral.find_by_email(cf) Notifier.deliver_referred_magic_email(User.find(@cf.user_id), @cf.email, @cf.name, @cf.message, subject, editor1) end end end
看起来你正在使用两者：
ContactMailer.delay.contact_mail(@contact)
和
handle_asynchronously :contact_mail, :run_at => Proc.new { 2.seconds.from_now }
你应该只做一个或另一个。 尝试删除handle_asynchronously，看看是否能解决问题。