feat: Downloading a zip with CSV documents

The new update allows the administrator to download a zip containing all the current CSV documents. Issue #596.

Gemfile

@@ -5,6 +5,7 @@ ruby File.read('.ruby-version').strip
 gem 'rails', '~> 6.1.1'
 gem 'rails-i18n', '~> 6.0.0'
 gem 'rdiscount', '~> 2.2.0.1'
+gem 'rubyzip', '~> 2.3.0'
 gem 'activeadmin', '~> 2.9.0'
 gem 'has_scope', '~> 0.7.2'
 gem 'pundit', '~> 2.1.0'

Gemfile.lock

@@ -438,6 +438,7 @@ DEPENDENCIES
   rspec-rails (~> 4.0.0)
   rubocop (~> 1.6)
   rubocop-rails (~> 2.9)
+  rubyzip (~> 2.3.0)
   sassc-rails (~> 2.1.2)
   select2-rails (~> 4.0.13)
   selenium-webdriver (~> 3.142)

app/assets/stylesheets/application.scss

@@ -672,3 +672,8 @@ label[required]::after{
   display: inline;
   margin: 0 !important;
 }
+
+.hr-5 {
+  margin-top: 5px;
+  margin-bottom: 5px;
+}

app/controllers/reports_controller.rb

@@ -1,3 +1,4 @@
+require 'zip'
 class ReportsController < ApplicationController
   before_action :authenticate_user!
 
@@ -31,6 +32,18 @@ def transfer_list
     report_responder('Transfer', current_organization, @transfers)
   end
 
+  def all_list
+    filename = "#{current_organization.name.gsub(' ', '_')}.zip"
+    temp_file = Tempfile.new(filename)
+    Zip::File.open(temp_file.path, Zip::File::CREATE) do |zipfile|
+      add_csvs_to_zip(%w[Member Transfer Inquiries Offers], zipfile)
+    end
+    zip_data = File.read(temp_file.path)
+    send_data(zip_data, type: 'application/zip', disposition: 'attachment', filename: filename)
+    temp_file.close
+    temp_file.unlink
+  end
+
   private
 
   def report_responder(report_class, *args)
@@ -45,4 +58,51 @@ def download_report(report_class, *args)
     report = report_class.constantize.new(*args)
     send_data report.run, filename: report.name, type: report.mime_type
   end
+
+  def add_csvs_to_zip(report_classes, zip)
+    report_classes.each do |report_class|
+      collection = return_collection(report_class)
+      report = do_report(report_class, collection)
+      file = Tempfile.new
+      file.write(report.run)
+      file.rewind
+      zip.add("#{report_class}.csv", file.path)
+    end
+  end
+
+  def return_collection(report_class)
+    case report_class
+    when 'Member'
+      current_organization.members.active.includes(:user).order('members.member_uid')
+    when 'Transfer'
+      current_organization.all_transfers_with_accounts
+    when 'Inquiries'
+      return_collection_posts('Inquiry')
+    when 'Offers'
+      return_collection_posts('Offer')
+    else
+      []
+    end
+  end
+
+  def return_collection_posts(type)
+    @post_type = type.constantize
+    @posts =  current_organization.posts.of_active_members.active.
+              merge(@post_type.all).
+              includes(:user, :category).
+              group_by(&:category).
+              to_a.
+              sort_by { |category, _| category.try(:name).to_s }
+  end
+
+  def do_report(report_class, collection)
+    case report_class
+    when 'Inquiries'
+      'Report::Csv::Post'.constantize.new(current_organization, collection, 'Inquiry'.constantize)
+    when 'Offers'
+      'Report::Csv::Post'.constantize.new(current_organization, collection, 'Offer'.constantize)
+    else
+      "Report::Csv::#{report_class}".constantize.new(current_organization, collection)
+    end
+  end
 end

app/views/application/menus/_organization_reports_menu.html.erb

@@ -29,5 +29,12 @@
         <%= Transfer.model_name.human(count: :many) %>
       <% end %>
     </li>
+    <hr class="hr-5">
+    <li>
+      <%= link_to all_list_report_path do %>
+        <%= glyph :download %>
+        <%= t 'reports.download_all' %>
+      <% end %>
+    </li>
   </ul>
 </li>

config/locales/en.yml

@@ -415,6 +415,7 @@ en:
     cat_with_users:
       title: Offered Services
     download: Download
+    download_all: Download all
     user_list:
       title: User List
   shared:

config/routes.rb

@@ -64,6 +64,7 @@
       get "offer_list" => :post_list, type: "offer"
       get "inquiry_list" => :post_list, type: "inquiry"
       get "transfer_list"
+      get "all_list"
     end
   end