Allow setting initiating party

Author: Tobias Schoknecht

lib/sepa_king/account.rb

@@ -4,7 +4,7 @@ class Account
     include ActiveModel::Validations
     extend Converter
 
-    attr_accessor :name, :iban, :bic
+    attr_accessor :name, :iban, :bic, :initiating_party
     convert :name, to: :text
 
     validates_length_of :name, within: 1..70

lib/sepa_king/message.rb

@@ -134,6 +134,15 @@ def xml_schema(schema_name)
     end
 
     def build_group_header(builder)
+      other_id = nil
+      if account.respond_to?(:creditor_identifier)
+        other_id = account.creditor_identifier
+      end
+
+      if account.initiating_party != nil
+        other_id = account.initiating_party
+      end
+
       builder.GrpHdr do
         builder.MsgId(message_identification)
         builder.CreDtTm(creation_date_time)
@@ -144,10 +153,10 @@ def build_group_header(builder)
           builder.Id do
             builder.OrgId do
               builder.Othr do
-                builder.Id(account.creditor_identifier)
+                builder.Id(other_id)
               end
             end
-          end if account.respond_to? :creditor_identifier
+          end if other_id
         end
       end
     end

spec/direct_debit_spec.rb

@@ -263,6 +263,20 @@
           expect(subject).to have_xml('//Document/CstmrDrctDbtInitn/GrpHdr/InitgPty/Id/OrgId/Othr/Id', direct_debit.account.creditor_identifier)
         end
 
+        context 'when initiating party is set' do
+          let(:direct_debit) do
+            SEPA::DirectDebit.new name:                'Gläubiger GmbH',
+                                  bic:                 'BANKDEFFXXX',
+                                  iban:                'DE87200500001234567890',
+                                  creditor_identifier: 'DE98ZZZ09999999999',
+                                  initiating_party:    'EXAMPLE1'
+          end
+
+          it 'should have initiating party' do
+            expect(subject).to have_xml('//Document/CstmrDrctDbtInitn/GrpHdr/InitgPty/Id/OrgId/Othr/Id', direct_debit.account.initiating_party)
+          end
+        end
+
         it 'should contain <PmtInfId>' do
           expect(subject).to have_xml('//Document/CstmrDrctDbtInitn/PmtInf/PmtInfId', /#{message_id_regex}\/1/)
         end