[feature]async generation of users exports

app/controllers/api/members_controller.rb

@@ -91,24 +91,51 @@ class API::MembersController < API::ApiController
   # export subscriptions
   def export_subscriptions
     authorize :export
-    @subscriptions = Subscription.all.includes(:plan, :user => [:profile])
 
-    render xlsx: 'export_subscriptions.xlsx', filename: "export_subscriptions.xlsx"
+    export = Export.where({category:'users', export_type: 'subscriptions'}).where('created_at > ?', Subscription.maximum('updated_at')).last
+    if export.nil? || !FileTest.exist?(export.file)
+      @export = Export.new({category:'users', export_type: 'subscriptions', user: current_user})
+      if @export.save
+        render json: {export_id: @export.id}, status: :ok
+      else
+        render json: @export.errors, status: :unprocessable_entity
+      end
+    else
+      send_file File.join(Rails.root, export.file), :type => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', :disposition => 'attachment'
+    end
   end
 
   # export reservations
   def export_reservations
     authorize :export
-    @reservations = Reservation.all.includes(:slots, :reservable, :user => [:profile])
 
-    render xlsx: 'export_reservations.xlsx', filename: "export_reservations.xlsx"
+    export = Export.where({category:'users', export_type: 'reservations'}).where('created_at > ?', Reservation.maximum('updated_at')).last
+    if export.nil? || !FileTest.exist?(export.file)
+      @export = Export.new({category:'users', export_type: 'reservations', user: current_user})
+      if @export.save
+        render json: {export_id: @export.id}, status: :ok
+      else
+        render json: @export.errors, status: :unprocessable_entity
+      end
+    else
+      send_file File.join(Rails.root, export.file), :type => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', :disposition => 'attachment'
+    end
   end
 
   def export_members
     authorize :export
-    @members = User.with_role(:member).includes(:group, :trainings, :tags, :invoices, :projects, :subscriptions => [:plan], :profile => [:address])
 
-    render xlsx: 'export_members.xlsx', filename: "export_members.xlsx"
+    export = Export.where({category:'users', export_type: 'members'}).where('created_at > ?', User.with_role(:member).maximum('updated_at')).last
+    if export.nil? || !FileTest.exist?(export.file)
+      @export = Export.new({category:'users', export_type: 'members', user: current_user})
+      if @export.save
+        render json: {export_id: @export.id}, status: :ok
+      else
+        render json: @export.errors, status: :unprocessable_entity
+      end
+    else
+      send_file File.join(Rails.root, export.file), :type => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', :disposition => 'attachment'
+    end
   end
 
   def merge

app/models/export.rb

@@ -26,6 +26,8 @@ class Export < ActiveRecord::Base
     case category
       when 'statistics'
         StatisticsExportWorker.perform_async(self.id)
+      when 'users'
+        UsersExportWorker.perform_async(self.id)
       else
        raise NoMethodError, "Unknown export service for #{category}/#{export_type}"
     end

app/services/users_export_service.rb

@@ -0,0 +1,65 @@
+require 'abstract_controller'
+require 'action_controller'
+require 'action_view'
+require 'active_record'
+
+# require any helpers
+require './app/helpers/application_helper'
+
+class UsersExportService
+
+  # export subscriptions
+  def export_subscriptions(export)
+    @subscriptions = Subscription.all.includes(:plan, :user => [:profile])
+
+    ActionController::Base.prepend_view_path './app/views/'
+    # place data in view_assigns
+    view_assigns = {subscriptions: @subscriptions}
+    av = ActionView::Base.new(ActionController::Base.view_paths, view_assigns)
+    av.class_eval do
+      # include any needed helpers (for the view)
+      include ApplicationHelper
+    end
+
+    content = av.render template: 'exports/users_subscriptions.xlsx.axlsx'
+    # write content to file
+    File.open(export.file,"w+b") {|f| f.puts content }
+  end
+
+  # export reservations
+  def export_reservations(export)
+    @reservations = Reservation.all.includes(:slots, :reservable, :user => [:profile])
+
+    ActionController::Base.prepend_view_path './app/views/'
+    # place data in view_assigns
+    view_assigns = {reservations: @reservations}
+    av = ActionView::Base.new(ActionController::Base.view_paths, view_assigns)
+    av.class_eval do
+      # include any needed helpers (for the view)
+      include ApplicationHelper
+    end
+
+    content = av.render template: 'exports/users_reservations.xlsx.axlsx'
+    # write content to file
+    File.open(export.file,"w+b") {|f| f.puts content }
+  end
+
+  # export members
+  def export_members(export)
+    @members = User.with_role(:member).includes(:group, :trainings, :tags, :invoices, :projects, :subscriptions => [:plan], :profile => [:address])
+
+    ActionController::Base.prepend_view_path './app/views/'
+    # place data in view_assigns
+    view_assigns = {members: @members}
+    av = ActionView::Base.new(ActionController::Base.view_paths, view_assigns)
+    av.class_eval do
+      # include any needed helpers (for the view)
+      include ApplicationHelper
+    end
+
+    content = av.render template: 'exports/users_members.xlsx.axlsx'
+    # write content to file
+    File.open(export.file,"w+b") {|f| f.puts content }
+  end
+
+end

app/workers/users_export_worker.rb

@@ -0,0 +1,27 @@
+class UsersExportWorker
+  include Sidekiq::Worker
+
+  def perform(export_id)
+    export = Export.find(export_id)
+
+    unless export.user.is_admin?
+      raise SecurityError, 'Not allowed to export'
+    end
+
+    unless export.category == 'users'
+      raise KeyError, 'Wrong worker called'
+    end
+
+    service = UsersExportService.new
+    method_name = "export_#{export.export_type}"
+
+    if %w(members subscriptions reservations).include?(export.export_type) and service.respond_to?(method_name)
+      service.public_send(method_name, export)
+
+      NotificationCenter.call type: :notify_admin_export_complete,
+                              receiver: export.user,
+                              attached_object: export
+    end
+
+  end
+end

config/locales/en.yml

@@ -259,6 +259,9 @@ en:
         statistics_project: "of statistics about projects"
         statistics_subscription: "of subscription statistics"
         statistics_training: "of statistics about trainings"
+        users_members: "of the members' list"
+        users_subscriptions: "of the subscriptions' list"
+        users_reservations: "of the reservations' list"
         is_over: "is over."
         download_here: "Download here"
 

config/locales/fr.yml

@@ -259,6 +259,9 @@ fr:
         statistics_project: "des statistiques sur les projets"
         statistics_subscription: "des statistiques d'abonnements"
         statistics_training: "des statistiques sur les formations"
+        users_members: "de la liste des membres"
+        users_subscriptions: "de la liste des abonnements"
+        users_reservations: "de la liste des réservations"
         is_over: "est terminé."
         download_here: "Téléchargez ici"
 

config/locales/mails.en.yml

@@ -261,6 +261,9 @@ en:
         statistics_project: "of statistics about projects"
         statistics_subscription: "of subscription statistics"
         statistics_training: "of statistics about trainings"
+        users_members: "of the members' list"
+        users_subscriptions: "of the subscriptions' list"
+        users_reservations: "of the reservations' list"
         click_to_download: "Excel file generated successfully. To download it, click"
         here: "here"
 

config/locales/mails.fr.yml

@@ -261,6 +261,9 @@ fr:
         statistics_project: "des statistiques sur les projets"
         statistics_subscription: "des statistiques d'abonnements"
         statistics_training: "des statistiques sur les formations"
+        users_members: "de la liste des membres"
+        users_subscriptions: "de la liste des abonnements"
+        users_reservations: "de la liste des réservations"
         click_to_download: "La génération est terminée. Pour télécharger le fichier Excel, cliquez"
         here: "ici"