Merge pull request #75 from deepak/feature/support-inr-paise

database schema respects the default currency

Gemfile

@@ -13,3 +13,12 @@ end
 platforms :ruby do
   gem "sqlite3"
 end
+
+platform :mri do
+  # gem "ruby-prof", "~> 0.11.2"
+
+  case RUBY_VERSION
+  when /^1.9/
+    gem 'debugger'
+  end
+end

lib/money-rails/configuration.rb

@@ -1,5 +1,6 @@
 require 'active_support/core_ext/module/delegation'
 require 'active_support/core_ext/module/attribute_accessors'
+require 'active_support/core_ext/string/inflections'
 
 module MoneyRails
 
@@ -19,16 +20,31 @@ def configure
 
     # Configuration parameters
 
+    def default_currency
+      Money.default_currency
+    end
+
     # Set default currency of money library
     def default_currency=(currency_name)
       Money.default_currency = Money::Currency.new(currency_name)
+      set_amount_column_for_default_currency!
+      set_currecy_column_for_default_currency!
     end
 
     # Register a custom currency
     def register_currency=(currency_options)
       Money::Currency.register(currency_options)
     end
 
+    def set_amount_column_for_default_currency!
+      amount_column.merge! postfix: "_#{default_currency.subunit.downcase.pluralize}"
+    end
+
+    def set_currecy_column_for_default_currency!
+      iso_code = default_currency.iso_code
+      currency_column.merge! default: iso_code
+    end
+
     # Set default bank object
     #
     # example (given that eu_central_bank is in Gemfile):

spec/active_record/migration_extensions/schema_statements_spec.rb

@@ -44,7 +44,9 @@ class Item < ActiveRecord::Base; end
         describe 'currency' do
           subject { Item.columns_hash['price_currency'] }
 
-          its (:default) { should eq 'USD' }
+          # set in spec/dummy/config/initializers/money.rb
+          its (:default) { should eq 'EUR' }
+
           its (:null) { should be_false }
           its (:type) { should eq :string }
         end

spec/active_record/migration_extensions/table_spec.rb

@@ -45,7 +45,9 @@ class Item < ActiveRecord::Base; end
         describe 'currency' do
           subject { Item.columns_hash['price_currency'] }
 
-          its (:default) { should eq 'USD' }
+          # set in spec/dummy/config/initializers/money.rb
+          its (:default) { should eq 'EUR' }
+
           its (:null) { should be_false }
           its (:type) { should eq :string }
         end

spec/configuration_spec.rb

@@ -50,5 +50,13 @@
       # Reset global setting
       MoneyRails.symbol = nil
     end
+
+    it "changes the amount and currency column settings based on the default currency" do
+      MoneyRails.default_currency = :inr
+
+      MoneyRails.amount_column[:postfix].should == "_#{MoneyRails.default_currency.subunit.downcase.pluralize}"
+      MoneyRails.currency_column[:default].should == MoneyRails.default_currency.iso_code
+    end
+
   end
 end