StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PORuntimeError default_url_options host and root_url (with subdomain)
text
Body
copied!<p>Each user of my app have a custom url (through subdomain) stored in db.</p> <p>My request is simple, I would like to send the "user url" through a json feed, like this:</p> <pre><code>{user_name: "vincent", :user_url: "vincent.my_app.com"} </code></pre> <p>to do that I have overwrite the as_json function of user model:</p> <pre><code>def as_json(options={}) { :user_name: self.name, :user_url: root_url(:subdomain => self.subdomain) } end </code></pre> <p>I have this additionnal module (which this work great and isn't the actual problem):</p> <pre><code>module SubdomainHelper def with_subdomain(subdomain) subdomain = (subdomain || "") subdomain += "." unless subdomain.empty? host = ActionMailer::Base.default_url_options[:host] [subdomain, host].join end def url_for(options = nil) if options.kind_of?(Hash) && options.has_key?(:subdomain) options[:host] = with_subdomain(options.delete(:subdomain)) end super end end </code></pre> <p>But when I get the json feed I have this error:</p> <pre><code>RuntimeError (Missing host to link to! Please provide :host parameter or set default_url_options[:host]): </code></pre> <p>pointing to the "as_json" method of user model.</p> <p>of course each environment implement default_url_options, in dev.rb:</p> <pre><code>config.action_mailer.default_url_options = {:host => 'my_app:3000'} </code></pre> <p>I don't understand why and how I fix it. Please help me.</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload