Howto show description fields from related table
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Just started playing with Ruby (no IT background) and until now went it quite well. But since two days I'm stuck and don't understand what's going wrong... so many thanks already for helping me out with this problem!! The situation is as described below:

I created a _currencymaster_ table with the following columns: `currmasdesc:string`,  `currmasiso:string`. 
I created a _currencyrate_ table with the following columns: `currratemasteridd:integer`,  `currratemasteridc:integer`,  `currraterate:decimal`, `currratedate:date`. Whereby the column `currratemasteridd` reflects the Dominant Currency and the `currratemasteridc` reflects the Converted Currency to generate combined a currency-pair.


The models/currencymaster.rb looks like this:

    class Currencymaster < ActiveRecord::Base
      has_many :CurrencyRateDom, :class_name => "Currencyrate", :foreign_key => "CurrRateMasterIDD" 
      has_many :CurrencyRateConv, :class_name => "Currencrate", :foreign_key => "CurrRateMasterIDC"
    end


The models/currencyrate.rb looks like this:

    class Currencyrate < ActiveRecord::Base
      belongs_to :CurrencyDominant, :class_name => 'Currencymaster' , :foreign_key => "CurrRateMasterIDD", :validate => true
      belongs_to :CurrencyConverted, :class_name => 'Currencymaster' , :foreign_key => "CurrRateMasterIDC", :validate => true
    end

The controllers/currencyrates_controller.rb looks like this:

    class CurrencyratesController < ApplicationController
      # GET /currencyrates
      # GET /currencyrates.json
      def index
        @currencyrates = Currencyrate.all
       
        respond_to do |format|
          format.html # index.html.erb
          format.json { render json: @currencyrates }
        end
      end
    
      # GET /currencyrates/1
      # GET /currencyrates/1.json
      def show
        @currencyrate = Currencyrate.find(params[:id])
    
        respond_to do |format|
          format.html # show.html.erb
          format.json { render json: @currencyrate }
        end
      end
    end

Now is my problem that I can't show, in the view/currencyrates/index.html.erb , the related `currencymaster.currmasiso` instead of the `currratemasteridd` & `currratemasteridc` stored in the table currencyrate.

I hope all information is avaibale in this question, else please let me know when other information is needed. Thanks again!