Use latest method, create history repository method for all setting c…

…hanges and update table

apps/admin/controllers/settings/index.rb

@@ -5,7 +5,7 @@ class Index
     expose :settings
 
     def call(params)
-      @settings = SettingRepository.new.for_display
+      @settings = SettingRepository.new.latest
     end
   end
 end

apps/admin/controllers/settings/new.rb

@@ -5,7 +5,7 @@ class New
     expose :settings
 
     def call(params)
-      @settings = SettingRepository.new.for_display
+      @settings = SettingRepository.new.latest
     end
   end
 end

apps/web/views/application_layout.rb

@@ -34,7 +34,7 @@ def faq_page_class
       private
 
       def settings
-        @settings ||= SettingRepository.new.for_display
+        @settings ||= SettingRepository.new.latest
       end
     end
   end

db/migrations/20180219121313_add_created_at_to_settings.rb

@@ -0,0 +1,5 @@
+Hanami::Model.migration do
+  change do
+    add_column :settings, :created_at, DateTime, null: false
+  end
+end

lib/contributors/repositories/setting_repository.rb

@@ -1,5 +1,12 @@
 class SettingRepository < Hanami::Repository
-  def for_display
+  def history
+    settings
+      .order{ created_at.desc }
+      .map_to(Setting)
+      .to_a
+  end
+
+  def latest
     settings
       .order{ created_at.desc }
       .limit(1).map_to(Setting)

spec/contributors/repositories/setting_repository_spec.rb

@@ -3,23 +3,40 @@
 
   after { repo.clear }
 
-  describe '#for_display' do
+  describe '#latest' do
     context 'when settings exist in db' do
       before { repo.create(title: 'Hanami') }
 
-      it { expect(repo.for_display).to be_a Setting }
-      it { expect(repo.for_display.title).to eq 'Hanami' }
+      it { expect(repo.latest).to be_a Setting }
+      it { expect(repo.latest.title).to eq 'Hanami' }
 
       context 'and settings more than one' do
         before { repo.create(title: 'Hanami latest') }
 
-        it { expect(repo.for_display.title).to eq 'Hanami latest' }
+        it { expect(repo.latest.title).to eq 'Hanami latest' }
       end
     end
 
     context 'when settings exist in db' do
-      it { expect(repo.for_display).to be_a Setting }
-      it { expect(repo.for_display.title).to eq nil }
+      it { expect(repo.latest).to be_a Setting }
+      it { expect(repo.latest.title).to eq nil }
+    end
+  end
+
+  describe '#history' do
+    context 'when settings exist in db' do
+      before do
+        repo.create(title: 'Hanami #1')
+        repo.create(title: 'Hanami #2')
+      end
+
+      it { expect(repo.history).to be_a Array }
+      it { expect(repo.history).to all(be_a Setting) }
+      it { expect(repo.history.map(&:title)).to eq ['Hanami #2', 'Hanami #1'] }
+    end
+
+    context 'when settings not exist in db' do
+      it { expect(repo.history).to eq [] }
     end
   end
 end