Add associations

app/models/regional_office.rb

@@ -55,6 +55,15 @@ class RegionalOffice < ApplicationRecord
            class_name: 'Relationship',
            inverse_of: :regional_office
 
+  has_one :current_regional_secretary_relationship,
+          lambda {
+            select('DISTINCT ON (relationships.person_id) *')
+              .regional_secretaries
+              .order(person_id: :asc, from_date: :desc)
+          },
+          class_name: 'Relationship',
+          inverse_of: :regional_office
+
   has_many :all_people,
            class_name: 'Person',
            inverse_of: :current_regional_office,
@@ -91,6 +100,12 @@ class RegionalOffice < ApplicationRecord
            through: :current_regional_supervisor_relationships,
            source: :person
 
+  has_one :current_regional_secretary_person,
+          class_name: 'Person',
+          inverse_of: :current_regional_office,
+          through: :current_regional_secretary_relationship,
+          source: :person
+
   has_many :all_accounts,
            class_name: 'Account',
            through: :all_people,
@@ -121,6 +136,11 @@ class RegionalOffice < ApplicationRecord
            through: :current_regional_supervisor_people,
            source: :account
 
+  has_one :current_regional_secretary_account,
+          class_name: 'Account',
+          through: :current_regional_secretary_person,
+          source: :account
+
   ###############
   # Validations #
   ###############

spec/models/regional_office_spec.rb

@@ -86,6 +86,20 @@ RSpec.describe RegionalOffice do
     end
   end
 
+  describe '#current_regional_secretary_relationship' do
+    it do
+      is_expected.to \
+        have_one(:current_regional_secretary_relationship)
+        .class_name('Relationship')
+        .inverse_of(:regional_office)
+        .dependent(:restrict_with_exception)
+        .conditions(status: :member,
+                    role: :regional_manager,
+                    regional_secretary_flag: :regional_secretary)
+        .order(person_id: :asc, from_date: :desc)
+    end
+  end
+
   describe '#all_people' do
     it do
       is_expected.to \
@@ -152,6 +166,17 @@ RSpec.describe RegionalOffice do
     end
   end
 
+  describe '#current_regional_secretary_person' do
+    it do
+      is_expected.to \
+        have_one(:current_regional_secretary_person)
+        .class_name('Person')
+        .inverse_of(:current_regional_office)
+        .through(:current_regional_secretary_relationship)
+        .source(:person)
+    end
+  end
+
   describe '#all_accounts' do
     it do
       is_expected.to \
@@ -211,4 +236,14 @@ RSpec.describe RegionalOffice do
         .source(:account)
     end
   end
+
+  describe '#current_regional_secretary_account' do
+    it do
+      is_expected.to \
+        have_one(:current_regional_secretary_account)
+        .class_name('Account')
+        .through(:current_regional_secretary_person)
+        .source(:account)
+    end
+  end
 end