如何为Rails ActionMailer配置主机名？

I'm working on a fairly traditional forgot password email - I want to email the user a password change token embedded in a link that they can click on in order to change their password. I'm emailing via the traditional ActionMailer.

我正在处理一个相当传统的忘记密码电子邮件 - 我想通过电子邮件向用户发送一个密码更改令牌，该密码更改令牌嵌入在他们可以点击以更改密码的链接中。我通过传统的ActionMailer发送电子邮件。

If I use a normal link_to tag

如果我使用普通的link_to标签

<%= link_to "click here", :controller => foo, :action => 'bar', :token => token %>

I get a relative link - rather useless from an email.

我得到一个相对链接 - 相当无用的电子邮件。

If I add in

如果我加入

:only_path => false, then it errors saying I need to set default_url_options[:host]. The ActionController docs imply that you do that by overriding the #default_url_options methods in your controller. Surely there's a configuration option to tell Rails what it's hostname is without adding my own config file, parsing it, etc?

：only_path => false，然后错误说我需要设置default_url_options [：host]。 ActionController文档暗示您通过覆盖控制器中的#default_url_options方法来实现这一点。当然有一个配置选项告诉Rails它的主机名是什么，而不添加我自己的配置文件，解析它等？

7 个解决方案

#1

default_url_options is available from config.action_mailer and should be set in your environment's configuration file.

default_url_options可从config.action_mailer获得，应在您环境的配置文件中设置。

For example, in config/environments/production.rb:

例如，在config / environments / production.rb中：

config.action_mailer.default_url_options = {
  :host => 'www.yourdomain.com'
}

For local testing, modify config/environments/development.rb:

对于本地测试，请修改config / environments / development.rb：

config.action_mailer.default_url_options = {
  :host => '127.0.0.1',
  :port => 3000
}

Then, assuming you have a named route called forgot_password_login, you can generate the login link URL in your mailer using something like this:

然后，假设您有一个名为forgot_password_login的命名路由，您可以使用以下内容在邮件程序中生成登录链接URL：

forgot_password_login_url(:token => 'a7s8q15sk2...')

#2

You probably want to set :protocol => 'https' as well, btw.

你可能想设置：protocol =>'https'，顺便说一句。

config.action_mailer.default_url_options = { 
    :host => "portal.example.com", 
    :protocol => 'https' 
}

#3

There is another alternative, as described in http://pivotallabs.com/how-i-leaned-to-stop-hating-and-love-action-mailer/

还有另一种选择，如http://pivotallabs.com/how-i-leaned-to-stop-hating-and-love-action-mailer/中所述

This solution has the advantage that it doesn't require any configuration (so less of a hassle), and works fine as long as you send emails from within controllers.

此解决方案的优势在于它不需要任何配置（因此不那么麻烦），并且只要您从控制器内发送电子邮件就可以正常工作。

But if you plan on sending email without going through a controller (e.g. from command line or in response to another email), you need the static configuration.

但是，如果您计划在不通过控制器的情况下发送电子邮件（例如，从命令行或响应其他电子邮件），则需要静态配置。

#4

Setting default_url_options directly is deprecated in Rails 3.1. Use url_for instead.

在Rails 3.1中不推荐直接设置default_url_options。请改用url_for。

Add parameter :protocol to override default value (http), :protocol => 'https://'. This will create url starting with "https://..." instead of default "http://"

添加参数：protocol以覆盖默认值（http），：protocol =>'https：//'。这将创建以“https：// ...”开头的网址，而不是默认的“http：//”

#5

Interestingly, I had the same issue as you did, but in unit tests (while following Michael Hartl's railstutorial). I had this line in my test.rb file, but that didn't help:

有趣的是，我遇到了和你一样的问题，但是在单元测试中（跟随Michael Hartl的轨道教程）。我在test.rb文件中有这一行，但这没有帮助：

config.action_mailer.default_url_options = { host: 'example.com', protocol: 'http' }

I've also added another line like this to test.rb, and surprisingly this solved the issue

我还在test.rb中添加了这样的另一行，令人惊讶的是，这解决了这个问题

default_url_options = { host: 'example.com', protocol: 'http' }

#6

-1

Setting default_url_options directly is deprecated in Rails 3.1

在Rails 3.1中不推荐直接设置default_url_options

Use the url_for helper to create it:

使用url_for帮助程序创建它：

<%= link_to "click here", url_for(:controller => foo, :action => 'bar', :token => token, :host => 'www.yourdomain.com') %>

#7

-2

Can you just do

你能做到吗？

<%="click here", :controller => foo, :action => 'bar', :token => token, :host=>request.host -%>

#1