Databases
StackOverflow2013
Postsdbo
PORuntimeError default_url_options host and root_url (with subdomain)
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PORuntimeError default_url_options host and root_url (with subdomain)
    primarykey
    data
    text
    <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 =&gt; 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) &amp;&amp; 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 =&gt; 'my_app:3000'} </code></pre> <p>I don't understand why and how I fix it. Please help me.</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USskyporter
    1. USskyporter
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. PORuntimeError default_url_options host and root_url (with subdomain)
      1. USkidbrax
      1. VTFavorite
    2. VO
      singulars
      1. PORuntimeError default_url_options host and root_url (with subdomain)
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PORuntimeError default_url_options host and root_url (with subdomain)
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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