ActionView::Template::Error: 缺少要链接的主机！请提供:host 参数，设置default_url_options[:host]，或设置:only_path 为true [英] ActionView::Template::Error: Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true

问题描述

我的 ruby​​ on rails action mailer 在开发环境中运行良好，但在生产环境中，它不断抛出:

My ruby on rails action mailer runs all good in development environment, but in production environment, it keeps throw:

ActionView::Template::Error: Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true

我的开发配置是

config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  :port           => xxx,
  :address        => 'smtp.example.org',
  :user_name      => '[e-mail]',
  :password       => 'xxxxxxxx',
  :domain         => 'xxxxxx.com',
  :authentication => :plain,
}

config.action_mailer.default_url_options = { :host => 'localhost:3000' }

我的生产配置是

config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  :port           => 587,
  :address        => 'smtp.example.org',
  :user_name      => '[e-mail]',
  :password       => 'xxxxxx',
  :domain         => 'example.com',
  :authentication => :plain,
}
config.action_mailer.default_url_options = { :host => 'example.com' }

我的其他环境是:

ruby 2.1.1
rails 4.0.3
sidekiq 
devise
devise-async

我试过了:

1. 在初始化文件中添加以下内容

1. Add the following in a initializer file

ActionMailer::Base.default_url_options[:host] = "example.com"

这个答案这里

它们都不起作用.

推荐答案

最后我在每个环境文件中添加了以下正确的值:

In the end I added the following with the correct value to each environment file:

test.rb/development.rb/production.rb

设计 3.2.x - 4.x.x

Rails 4.1.x &&Rails 4.2.x &&Rails 5.x.x

Rails 4.1.x && Rails 4.2.x && Rails 5.x.x

感谢 maudulus

# Default Mailer Host
  Rails.application.routes.default_url_options[:host] = 'domain.com'

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