MongoDB won't connect to MongoHQ using Mongoid

Question

I\'ve just started a brand new rails project and the first task I\'m trying to complete is creating an object and having it save within my database. I went through the auto

Answer 1

For a replica set / non-replica-set on MongoHQ:

production:
  sessions:
    default:
      <% if ENV['MONGOHQ_HOST_LIST'] %>
      database: <%= ENV['MONGOHQ_DATABASE'] %>
      username: <%= ENV['MONGOHQ_USER'] %>
      password: <%= ENV['MONGOHQ_PASSWD'] %>
      hosts:
      <% YAML.parse(ENV['MONGOHQ_HOST_LIST']).value.each do |v| %>
        - <%= "#{v[0].value}:#{v[1].value}" %>
      <% end %>
      <% elsif ENV['MONGOHQ_URL'] %>
      uri: <%= ENV['MONGOHQ_URL'] %>
      <% end %>
      options:
        consistency: :eventual
        safe: true

Answer 2

Database connections currently cannot be made via URI at this point in mongoid. The format of the mongoid.yml is as follows:

environment:
  host: <%= ENV['MONGOID_HOST'] %>
  port: <%= ENV['MONGOID_PORT'] %>
  username: <%= ENV['MONGOID_USERNAME'] %>
  password: <%= ENV['MONGOID_PASSWORD'] %>
  database: <%= ENV['MONGOID_DATABASE'] %>

What you will need to do is parse the MongoHQ string into its constituent parts to supply in the mongoid.yml

If you want, someone has cooked up a gist that does this for you here

Answer 3

This is how my production mongoid.yml looks like

<% if ENV['MONGOLAB_URI'] %>
  <% uri = URI.parse(ENV['MONGOLAB_URI']) %>
production:
  <<: *defaults
  sessions:
    default:
      <<: *default_session
      database: <%= uri.path.sub('/','') %>
      username: <%= uri.user %>
      password: <%= uri.password %>
      hosts:
        - <%= uri.host %>:<%= uri.port %>
<% end %>

and this works for me