Add csv export button do domain list in registrar area

#248

app/controllers/registrar/domains_controller.rb

@@ -14,7 +14,7 @@ class Registrar::DomainsController < Registrar::DeppController # EPP controller
     if params[:q].length == 1 && params[:q][:name_matches].present?
       @domain = Domain.find_by(name: params[:q][:name_matches])
       if @domain
-        redirect_to info_registrar_domains_path(domain_name: @domain.name) and return
+        redirect_to info_registrar_domains_url(domain_name: @domain.name) and return
       end
     end
 
@@ -40,6 +40,20 @@ class Registrar::DomainsController < Registrar::DeppController # EPP controller
     end
 
     @domains = @domains.per(params[:results_per_page]) if params[:results_per_page].to_i > 0
+
+    respond_to do |format|
+      format.html
+      format.csv do
+        domain_presenters = []
+
+        @domains.find_each do |domain|
+          domain_presenters << ::DomainPresenter.new(domain: domain, view: view_context)
+        end
+
+        csv = Registrar::DomainListCSVPresenter.new(domains: domain_presenters, view: view_context).to_s
+        send_data(csv)
+      end
+    end
   end
   # rubocop: enable Metrics/PerceivedComplexity
   # rubocop: enable Metrics/CyclomaticComplexity

app/presenters/domain_presenter.rb

@@ -1,5 +1,5 @@
 class DomainPresenter
-  delegate :name, :registrant_name, :registrant_id, to: :domain
+  delegate :name, :registrant_name, :registrant_id, :registrant_code, to: :domain
 
   def initialize(domain:, view:)
     @domain = domain

app/presenters/registrar/domain_list_csv_presenter.rb

@@ -0,0 +1,45 @@
+class Registrar::DomainListCSVPresenter
+  def initialize(domains:, view:)
+    @domains = domains
+    @view = view
+  end
+
+  def to_s
+    table = CSV::Table.new([header])
+
+    domains.each do |domain|
+      table << domain_to_row(domain: domain)
+    end
+
+    table.to_s
+  end
+
+  private
+
+  def header
+    columns = %w(
+      domain_name
+      registrant_name
+      registrant_code
+      expire_time
+    )
+
+    columns.map! { |column| view.t("registrar.domains.index.csv.#{column}") }
+
+    CSV::Row.new(columns, [], true)
+  end
+
+  def domain_to_row(domain:)
+    row = []
+    row[0] = domain.name
+    row[1] = domain.registrant_name
+    row[2] = domain.registrant_code
+    row[3] = domain.expire_date
+    row
+
+    CSV::Row.new([], row)
+  end
+
+  attr_reader :domains
+  attr_reader :view
+end

app/views/registrar/domains/index.haml

@@ -52,6 +52,10 @@
              
           %button.btn.btn-default.js-reset-form
             = t(:clear_fields)
+      .row
+        .col-md-2
+          = button_tag t('.export_csv_btn'), class: 'btn btn-primary export-domains-csv-btn',
+          formaction: registrar_domains_path(format: 'csv')
 %hr
 
 .row

config/locales/registrar/domains.en.yml

@@ -0,0 +1,10 @@
+en:
+  registrar:
+    domains:
+      index:
+        export_csv_btn: Export CSV
+        csv:
+          domain_name: Domain
+          registrant_name: Registrant name
+          registrant_code: Registrant code
+          expire_time: Date of expiry

spec/features/registrar/domains/csv_export_spec.rb

@@ -0,0 +1,13 @@
+require 'rails_helper'
+
+RSpec.feature 'CSV Export' do
+  background do
+    Setting.registrar_ip_whitelist_enabled = false
+    sign_in_to_registrar_area(user: FactoryGirl.create(:api_user))
+  end
+
+  scenario 'exports csv' do
+    visit registrar_domains_url
+    click_button t('registrar.domains.index.export_csv_btn')
+  end
+end

spec/presenters/domain_presenter_spec.rb

@@ -119,6 +119,7 @@ RSpec.describe DomainPresenter do
     name
     registrant_name
     registrant_id
+    registrant_code
   )
 
   domain_delegatable_attributes.each do |attribute_name|

spec/presenters/registrar/domain_list_csv_presenter_spec.rb

@@ -0,0 +1,45 @@
+require 'rails_helper'
+
+RSpec.describe Registrar::DomainListCSVPresenter do
+  let(:domain) { instance_spy(DomainPresenter) }
+  let(:csv) { CSV.parse(described_class.new(domains: [domain], view: view).to_s, converters: :all) }
+
+  describe 'header' do
+    subject(:header) { csv.first }
+
+    it 'is present' do
+      columns = []
+      columns[0] = 'Domain'
+      columns[1] = 'Registrant name'
+      columns[2] = 'Registrant code'
+      columns[3] = 'Date of expiry'
+      columns
+
+      expect(header).to eq(columns)
+    end
+  end
+
+  describe 'row' do
+    subject(:row) { csv.second }
+
+    it 'has domain name' do
+      expect(domain).to receive(:name).and_return('test name')
+      expect(row[0]).to eq('test name')
+    end
+
+    it 'has registrant name' do
+      expect(domain).to receive(:registrant_name).and_return('test registrant name')
+      expect(row[1]).to eq('test registrant name')
+    end
+
+    it 'has registrant code' do
+      expect(domain).to receive(:registrant_code).and_return('test registrant code')
+      expect(row[2]).to eq('test registrant code')
+    end
+
+    it 'has expire date' do
+      expect(domain).to receive(:expire_date).and_return('expire date')
+      expect(row[3]).to eq('expire date')
+    end
+  end
+end

spec/requests/registrar/domains_controller_spec.rb

@@ -0,0 +1,28 @@
+require 'rails_helper'
+
+RSpec.describe Registrar::DomainsController, db: true do
+  describe '#index' do
+    before do
+      sign_in_to_registrar_area
+    end
+
+    it 'responds with success' do
+      csv_presenter = instance_double(Registrar::DomainListCSVPresenter, to_s: 'csv')
+      expect(Registrar::DomainListCSVPresenter).to receive(:new).and_return(csv_presenter)
+
+      get registrar_domains_url(format: 'csv')
+
+      expect(response.body).to eq('csv')
+    end
+
+    it 'returns csv' do
+      get registrar_domains_url(format: 'csv')
+
+      expect(response).to have_http_status(:success)
+    end
+  end
+
+  def sign_in_to_registrar_area(user: FactoryGirl.create(:api_user))
+    post registrar_sessions_path, { depp_user: { tag: user.username, password: user.password } }
+  end
+end

spec/routing/registrar/domains_routing_spec.rb

@@ -0,0 +1,9 @@
+require 'rails_helper'
+
+RSpec.describe Registrar::DomainsController do
+  describe 'routing' do
+    it 'routes to #index' do
+      expect(get: '/registrar/domains').to route_to('registrar/domains#index')
+    end
+  end
+end