Question

I’m using Mongoid on Sinatra . And I use

Dir.glob(File.join(File.dirname(__FILE__),'models','*.rb')).each do |file|
  require file
end

to load mongoid model files.

I tried to add a model B inherit from A ,like:

models/a.rb:

class A
  include Mongoid::Document
  include Mongoid::Timestamps
  field :custom_id, type: Integer
end

models/b.rb

class B < A
  field :title , type: String
  field :body , type: String
end

But when I exec the App , I got errors :

uninitialized constant A (NameError)

So I’m trying to find a solution for this,
it could be fixed by add:

require A

at the top of model B , But I think it may not be a good way to solve it.

So , is there anyother way to fix this??

---

Regards

Answer 1

You just require your file where you A class is define.

Sinatra has no auto_load system like rails have. So you need doing all of your require needed.

require 'a'
class B < A
  field :title , type: String
  field :body , type: String
end