Question

I have in my application a few controllers that i want to use as a api. In this api i need to use versioning.

in my routes.rb i`m using this:

require 'api_constraints'

(…)

  scope '/:target/:version', :module => :api, :constraints => { :version => /[0-z\.]+/ } , :defaults => { :format => 'json' } do
    scope :module => :v1, :constraints => ApiConstraints.new(:version => 1, :default => true) do
      match '/list' => 'sample#list'
    end
  end

my api_constraints.rb:

class ApiConstraints

  def initialize(options)
    @version = options[:version]
    @default = options[:default]
  end

  def matches?(req)
    @default || req.headers['Accept'].include?("application/waytaxi.api.v#{@version}")
  end

  def self.version
    @version
  end

end

in my SampleController.rb:

module Api
  module V1
    class SampleController < ApiBaseController

      def list
        render json: Model.find_by_id(params[:id])
      end

    end    
  end
end

the ApiBaseController:

module Api
  class ApiBaseController < ApplicationController
    before_filter :authenticate
    skip_before_filter :verify_authenticity_token

  private

    def authenticate
      # if params[:target] == "ios"
      #   render :json => {status: 404}
      #   return false        
      # end
    end
  end  
end

the problem is:

whenever i try to call Model i get this error:

uninitialized constant Api::V1::SampleController::Model

If i use: ::Model i get this error:

uninitialized constant Model

And yes, i do have this models on my database. If i use Model.all outside the SampleController i get the objects.

P.S.: I’m using rails 3.2.8

Answer 1

Found my problem.

My Model was in plural and on my controller i was calling it in singular