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我创建了两个邮件程序，其中一个邮件程序未在Heroku上的生产中工作。另一个邮件程序已经过测试，它的工作原理，所以我知道sendgrid的电子邮件配置工作。Heroku Mailer延迟作业失败，出现ArgumentError：参数数量错误（0代表1） - 0次失败尝试
我有一个邀请型号：
class Invitation < ActiveRecord::Base
attr_accessible :recipient_email, :sender_id, :sent_at, :token
belongs_to :sender, :class_name => 'User'
has_one :recipient, :class_name => 'User'
validates_presence_of :recipient_email
validate :recipient_is_not_registered
validate :sender_has_invitations, :if => :sender
before_create :generate_token
before_create :decrement_sender_count, :if => :sender
after_create do |invitation|
Mailer.delay.deliver_invitation(invitation)
end
private
def recipient_is_not_registered
errors.add :recipient_email, 'is already registered' if User.find_by_email(recipient_email)
end
def sender_has_invitations
unless sender.invitation_limit > 0
errors.add_to_base 'You have reached your limit of invitations to send.'
end
end
def generate_token
self.token = Digest::SHA1.hexdigest([Time.now, rand].join)
end
def decrement_sender_count
sender.decrement! :invitation_limit
end
end
邮包：
class Mailer < ActionMailer::Base
helper ActionView::Helpers::UrlHelper
default from: "[email protected]"
def invitation(invite)
@invitation = invite
mail to: invitation.recipient_email, subject: "Invitaiton"
end
end
的文本文件：
You are invited to join our beta!
<%= link_to 'Sign Up', signup_url(@invite.token) %>
和一个视图：
<div class="breadcrumbs span12 row">
<p>
<%= link_to "contests", contests_path %> > send invitation
</p>
</div>
<div class="span12">
<div class = "span6 offset2 pull-left">
<div class="title">
<h1>Invite Friends</h1>
</div>
<%= simple_form_for @invitation do |f| %>
<fieldset class="edit well">
<p></p>
<p><%= f.input :recipient_email, :label => "Friend's email address" %></p>
</fieldset>
<div class="form-actions">
<%= f.submit 'Send Invite', :class => 'btn btn-primary pull-right btn-large m5' %>
</div>
<% end %>
</div>
<div class = "well pull-right span2">
<% if current_user.invitation_limit > 0 %>
<p>
Welcome <%= current_user.name %>,
you have <%= current_user.invitation_limit %> invitations left</p>
<% else %>
<% end %>
</div>
</div>
下面是从Heroku的日志文件：
heroku[router]: GET www.lumeo.com/invitations/new dyno=web.1 queue=0 wait=0ms service=85ms status=200 bytes=4922
app[worker.1]: [Worker(host:881b0507-883f-43b1-b3aa-7cfddc9c17fa pid:2)] Class#invitation failed with ArgumentError: wrong number of arguments (0 for 1) - 0 failed attempts
app[worker.1]: [Worker(host:881b0507-883f-43b1-b3aa-7cfddc9c17fa pid:2)] Class#invitation failed with ArgumentError: wrong number of arguments (0 for 1) - 1 failed attempts
app[worker.1]: [Worker(host:881b0507-883f-43b1-b3aa-7cfddc9c17fa pid:2)] 2 jobs processed at 4.3239 j/s, 2 failed ...
app[worker.1]: [Worker(host:881b0507-883f-43b1-b3aa-7cfddc9c17fa pid:2)] Class#invitation failed with ArgumentError: wrong number of arguments (0 for 1) - 2 failed attempts
app[worker.1]: [Worker(host:881b0507-883f-43b1-b3aa-7cfddc9c17fa pid:2)] Class#invitation failed with ArgumentError: wrong number of arguments (0 for 1) - 3 failed attempts
app[worker.1]: [Worker(host:881b0507-883f-43b1-b3aa-7cfddc9c17fa pid:2)] 2 jobs processed at 11.4575 j/s, 2 failed ...
应用[postgres的]：[13913-1] [白色] LOG：检查点开始：时间 应用程式[postgres的]：[13914-1] [白色] LOG：检查点完成：写入0个缓冲区（0.0％）;添加0个事务日志文件，删除0个，再循环1个;写= 0.000s，同步= 0.000s，总= 0.007s;同步文件= 0，最长= 0.000秒，平均= 0.000秒
如果您有任何建议，请告诉我。提前致谢。布赖恩