Consider nil in price expire time as effective

#522

app/controllers/admin/billing/prices_controller.rb

@@ -6,18 +6,19 @@ module Admin
       helper_method :zones
       helper_method :operation_categories
       helper_method :durations
+      helper_method :statuses
 
       def index
         @search = OpenStruct.new(search_params)
 
-        unless @search.validity
-          @search.validity = 'unexpired'
+        unless @search.status
+          @search.status = default_status
         end
 
         prices = ::Billing::Price.all
 
-        if @search.validity.present?
-          prices = ::Billing::Price.send(@search.validity)
+        if @search.status.present?
+          prices = ::Billing::Price.send(@search.status)
         end
 
         @q = prices.search(params[:q])
@@ -81,7 +82,7 @@ module Admin
 
       def search_params
         allowed_params = %i[
-          validity
+          status
         ]
         params.fetch(:search, {}).permit(*allowed_params)
       end
@@ -102,6 +103,14 @@ module Admin
         durations = ::Billing::Price::durations
         durations.collect { |duration| [duration.sub('mon', 'month'), duration] }
       end
+
+      def statuses
+        ::Billing::Price.statuses
+      end
+
+      def default_status
+        'effective'
+      end
     end
   end
 end

app/models/billing/price.rb

@@ -12,6 +12,7 @@ module Billing
     validates :operation_category, inclusion: { in: Proc.new { |price| price.class.operation_categories } }
     validates :duration, inclusion: { in: Proc.new { |price| price.class.durations } }
 
+    alias_attribute :effect_time, :valid_from
     alias_attribute :expire_time, :valid_to
     monetize :price_cents, allow_nil: true, numericality: { greater_than_or_equal_to: 0 }
     after_initialize :init_values
@@ -38,6 +39,21 @@ module Billing
       ]
     end
 
+    def self.statuses
+      %w[pending effective expired]
+    end
+
+    def self.pending
+      where("#{attribute_alias(:effect_time)} > ?", Time.zone.now)
+    end
+
+    def self.effective
+      condition = "#{attribute_alias(:effect_time)} <= :now " \
+      " AND (#{attribute_alias(:expire_time)} >= :now" \
+      " OR #{attribute_alias(:expire_time)} IS NULL)"
+      where(condition, now: Time.zone.now)
+    end
+
     def self.valid
       where('valid_from <= ? AND (valid_to >= ? OR valid_to IS NULL)', Time.zone.now.end_of_day,
             Time.zone.now.beginning_of_day)

app/models/concerns/billing/price/expirable.rb

@@ -2,10 +2,6 @@ module Concerns::Billing::Price::Expirable
   extend ActiveSupport::Concern
 
   class_methods do
-    def unexpired
-      where("#{attribute_alias(:expire_time)} >= ?", Time.zone.now)
-    end
-
     def expired
       where("#{attribute_alias(:expire_time)} < ?", Time.zone.now)
     end

app/views/admin/billing/prices/_search_form.html.erb

@@ -1,10 +1,9 @@
 <%= form_for :search, url: admin_prices_path, method: :get, html: { class: 'form-horizontal' } do |f| %>
     <div class="form-group">
-        <%= f.label :validity, class: 'col-sm-2 control-label' %>
+        <%= f.label :status, class: 'col-sm-2 control-label' %>
 
         <div class="col-sm-3">
-            <%= f.select :validity, options_for_select(%w[unexpired expired], search.validity),
-                         { include_blank: true },
+            <%= f.select :status, options_for_select(statuses, search.status), { include_blank: true },
                          class: 'form-control' %>
         </div>
     </div>

spec/factories/billing/price.rb

@@ -7,7 +7,7 @@ FactoryGirl.define do
     operation_category Billing::Price.operation_categories.first
     zone
 
-    factory :unexpired_price do
+    factory :effective_price do
       expire_time { Time.zone.now + 1.day }
     end
 

spec/features/admin/billing/prices/edit_spec.rb

@@ -1,7 +1,7 @@
 require 'rails_helper'
 
 RSpec.feature 'Editing price in admin area', settings: false do
-  given!(:price) { create(:unexpired_price) }
+  given!(:price) { create(:effective_price) }
 
   background do
     sign_in_to_admin_area

spec/features/admin/billing/prices/expire_spec.rb

@@ -1,7 +1,7 @@
 require 'rails_helper'
 
 RSpec.feature 'Expiring price in admin area', settings: false do
-  given!(:price) { create(:unexpired_price) }
+  given!(:price) { create(:effective_price) }
 
   background do
     sign_in_to_admin_area

spec/features/admin/billing/prices/list_spec.rb

@@ -1,7 +1,7 @@
 require 'rails_helper'
 
 RSpec.feature 'Viewing prices in admin area', settings: false do
-  given!(:unexpired_price) { create(:unexpired_price) }
+  given!(:effective_price) { create(:effective_price) }
   given!(:expired_price) { create(:expired_price) }
 
   background do
@@ -9,17 +9,17 @@ RSpec.feature 'Viewing prices in admin area', settings: false do
   end
 
   describe 'search' do
-    context 'when validity is not selected' do
-      scenario 'shows unexpired prices' do
+    context 'when status is not selected' do
+      scenario 'shows effective prices' do
         visit admin_prices_path
         expect(page).to have_css('.price', count: 1)
       end
     end
 
-    context 'when validity is given' do
-      scenario 'filters by given validity' do
+    context 'when status is given' do
+      scenario 'filters by given status' do
         visit admin_prices_path
-        select 'unexpired', from: 'search_validity'
+        select 'effective', from: 'search_status'
         submit_search_form
 
         expect(page).to have_css('.price', count: 1)

spec/models/billing/price_spec.rb

@@ -3,6 +3,7 @@ require 'rails_helper'
 RSpec.describe Billing::Price do
   it { is_expected.to monetize(:price) }
   it { is_expected.to be_versioned }
+  it { is_expected.to alias_attribute(:effect_time, :valid_from) }
   it { is_expected.to alias_attribute(:expire_time, :valid_to) }
 
   it 'should have one version' do
@@ -14,14 +15,14 @@ RSpec.describe Billing::Price do
   end
 
   describe '::operation_categories', db: false do
-    it 'returns available operation categories' do
+    it 'returns operation categories' do
       categories = %w[create renew]
       expect(described_class.operation_categories).to eq(categories)
     end
   end
 
   describe '::durations', db: false do
-    it 'returns available durations' do
+    it 'returns durations' do
       durations = [
           '3 mons',
           '6 mons',
@@ -42,6 +43,40 @@ RSpec.describe Billing::Price do
     end
   end
 
+  describe '::statuses', db: false do
+    it 'returns statuses' do
+      expect(described_class.statuses).to eq(%w[pending effective expired])
+    end
+  end
+
+  describe '::pending' do
+    before :example do
+      travel_to Time.zone.parse('05.07.2010 00:00')
+
+      create(:price, id: 1, effect_time: Time.zone.parse('05.07.2010 00:00'))
+      create(:price, id: 2, effect_time: Time.zone.parse('05.07.2010 00:01'))
+    end
+
+    it 'returns pending' do
+      expect(described_class.pending.ids).to eq([2])
+    end
+  end
+
+  describe '::effective' do
+    before :example do
+      travel_to Time.zone.parse('05.07.2010 00:00')
+
+      create(:price, id: 1, effect_time: '05.07.2010 00:01', expire_time: '05.07.2010 00:02')
+      create(:price, id: 2, effect_time: '05.07.2010 00:00', expire_time: '05.07.2010 00:01')
+      create(:price, id: 3, effect_time: '05.07.2010 00:00', expire_time: nil)
+      create(:price, id: 4, effect_time: '04.07.2010', expire_time: '04.07.2010 23:59')
+    end
+
+    it 'returns effective' do
+      expect(described_class.effective.ids).to eq([2, 3])
+    end
+  end
+
   describe 'zone validation', db: false do
     subject(:price) { described_class.new }
 

spec/models/concerns/billing/price/expirable_spec.rb

@@ -1,20 +1,6 @@
 require 'rails_helper'
 
 RSpec.describe Billing::Price do
-  describe '::unexpired' do
-    before :example do
-      travel_to Time.zone.parse('05.07.2010 00:00')
-
-      create(:price, id: 1, expire_time: Time.zone.parse('04.07.2010 23:59'))
-      create(:price, id: 2, expire_time: Time.zone.parse('05.07.2010 00:00'))
-      create(:price, id: 3, expire_time: Time.zone.parse('05.07.2010 00:01'))
-    end
-
-    it 'returns prices with expire time in the future ' do
-      expect(described_class.unexpired.ids).to eq([2, 3])
-    end
-  end
-
   describe '::expired' do
     before :example do
       travel_to Time.zone.parse('05.07.2010 00:00')

spec/requests/admin/billing/prices/expire_spec.rb

@@ -6,14 +6,14 @@ RSpec.describe 'admin price expire', settings: false do
   end
 
   it 'expires price' do
-    price = create(:unexpired_price)
+    price = create(:effective_price)
 
     expect { patch expire_admin_price_path(price); price.reload }
         .to change { price.expired? }.from(false).to(true)
   end
 
   it 'redirects to :index' do
-    price = create(:unexpired_price)
+    price = create(:effective_price)
 
     patch expire_admin_price_path(price)