问题
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.
If I use a normal link_to tag
<%= link_to "click here", :controller => foo, :action => 'bar', :token => token %>
I get a relative link - rather useless from an email.
If I add in
: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?
回答1:
default_url_options
is available from config.action_mailer
and should be set in your environment's configuration file.
For example, in config/environments/production.rb
:
config.action_mailer.default_url_options = {
:host => 'www.yourdomain.com'
}
For local testing, modify 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:
forgot_password_login_url(:token => 'a7s8q15sk2...')
回答2:
You probably want to set :protocol => 'https' as well, btw.
config.action_mailer.default_url_options = {
:host => "portal.example.com",
:protocol => 'https'
}
回答3:
There is another alternative, as described in http://pivotallabs.com/how-i-leaned-to-stop-hating-and-love-action-mailer/
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.
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.
回答4:
Setting default_url_options
directly is deprecated in Rails 3.1. Use url_for instead.
Add parameter :protocol
to override default value (http), :protocol => 'https://'
. This will create url starting with "https://..." instead of default "http://"
回答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:
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
default_url_options = { host: 'example.com', protocol: 'http' }
回答6:
Setting default_url_options directly is deprecated in Rails 3.1
Use the url_for helper to create it:
<%= link_to "click here", url_for(:controller => foo, :action => 'bar', :token => token, :host => 'www.yourdomain.com') %>
回答7:
Can you just do
<%="click here", :controller => foo, :action => 'bar', :token => token, :host=>request.host -%>
来源:https://stackoverflow.com/questions/798917/how-do-i-configure-the-hostname-for-rails-actionmailer