bulk upload store credit button added

app/assets/javascripts/spree/backend/csv_input_button.js

@@ -0,0 +1,28 @@
+function CsvInputButton(input) {
+  this.fileInput = input.fileInput;
+  this.submitButton = input.submitButton;
+  this.form = input.form;
+}
+ CsvInputButton.prototype.init = function() {
+  var _this = this;
+  this.submitButton.on('click', function() {
+    event.preventDefault();
+    _this.fileInput.click();
+    _this.submitForm();
+  });
+};
+ CsvInputButton.prototype.submitForm = function() {
+  var _this = this;
+  this.fileInput.on('change', function() {
+    _this.form.submit();
+  });
+};
+ $(function() {
+  var inputs = {
+    fileInput: $('input#file'),
+    submitButton: $('input[data-disable-with="Import Store Credit CSV"]'),
+    form: $("form[data-hook='csv_form']")
+  },
+    csvButtonsManager = new CsvInputButton(inputs);
+  csvButtonsManager.init();
+});

app/assets/javascripts/spree/backend/spree_bulk_store_credits.js

@@ -1,2 +1,3 @@
 // Placeholder manifest file.
-// the installer will append this file to the app vendored assets here: vendor/assets/javascripts/spree/backend/all.js'
+// the installer will append this file to the app vendored assets here: vendor/assets/javascripts/spree/backend/all.js'
+//= require spree/backend/csv_input_button

app/assets/stylesheets/spree/backend/spree_bulk_store_credits.css

@@ -2,3 +2,10 @@
 Placeholder manifest file.
 the installer will append this file to the app vendored assets here: 'vendor/assets/stylesheets/spree/backend/all.css'
 */
+input.file-browse {
+  display: none;
+}
+
+ a.sample-download {
+  padding-right: 13px;
+}

app/controllers/spree/admin/users_controller_decorator.rb

@@ -0,0 +1,22 @@
+Spree::Admin::UsersController.class_eval do
+  def sample_store_credit_csv
+    send_file STORE_CREDIT_CSV_FILE[:sample_store_credit_file]
+  end
+
+  def import_store_credits
+    begin
+      create_store_credit_updater
+      redirect_to admin_users_path, notice: Spree.t(:email_sent, filename: @store_credit_updater.data_file_file_name)
+    rescue
+      redirect_to admin_users_path, notice: "Invalid CSV file format."
+    end
+  end
+
+  private
+
+    def create_store_credit_updater
+      @store_credit_updater = Spree::BulkStoreCreditUpdater.create(data_file: params[:file])
+      NotifyStoreCreditService.delay(run_at: 1.minutes.from_now).new(@store_credit_updater.id, try_spree_current_user.email)
+    end
+
+end

app/mailers/spree/store_credit_updater_mailer.rb

@@ -0,0 +1,11 @@
+module Spree
+  class StoreCreditUpdaterMailer < BaseMailer
+    def update_admin(status_csv, admin_email, filename, total_records, successfull_records)
+      @total_records = total_records
+      @failed_records = total_records - successfull_records
+      attachments['stock_items.csv'] = status_csv
+      subject = "#{Spree::Store.current.name} import of #{ filename } has finished"
+      mail(to: admin_email, from: from_address, subject: subject)
+    end
+  end
+end

app/models/spree/bulk_store_credit_updater.rb

@@ -0,0 +1,6 @@
+module Spree
+  class BulkStoreCreditUpdater < Spree::Base
+    has_attached_file :data_file
+    validates_attachment :data_file, content_type: { content_type: ["text/csv", "text/plain"] }
+  end
+end

app/overrides/add_import_button_on_user_index_page.rb

@@ -0,0 +1,6 @@
+Deface::Override.new(
+  virtual_path: 'spree/admin/shared/_content_header',
+  name: 'add_import_button_on_user_index_page',
+  insert_bottom: "div[data-hook='toolbar']",
+  partial: 'spree/admin/users/import_button'
+)

app/services/notify_store_credit_service.rb

@@ -0,0 +1,66 @@
+require 'csv'
+  class NotifyStoreCreditService
+    CSV_HEADERS = { 'Email': :Email, 'Store_Credit': :Store_Credit, 'Memo': :Memo, 'Category_ID': :Category_ID, 'Status': :Status }
+
+    def initialize(store_credit_updater_id, admin_email)
+      @store_credit_updater = Spree::BulkStoreCreditUpdater.find_by(id: store_credit_updater_id)
+      update_store_credits
+      @store_credit_updater.update_column(:job_executed, true)
+      Spree::StoreCreditUpdaterMailer.update_admin(@csv_export, admin_email, @store_credit_updater.data_file_file_name, @total_records, @successfull_records).deliver_now
+      @store_credit_updater.destroy if @store_credit_updater.job_executed?
+    end
+
+    private
+      def update_store_credits
+        @total_records = 0
+        @successfull_records = 0
+        @csv_export = CSV.generate do |csv|
+          unless csv_empty?
+            csv << CSV_HEADERS.keys
+            CSV.foreach(@store_credit_updater.data_file.path, headers: true) do |row|
+              @error = nil
+              @total_records += 1
+              @row = row
+              @user = find_user
+              if @user
+                update_stocks_with_csv_values
+              else
+                @error = Spree.t(:user_not_found)
+              end
+              csv << set_row
+            end
+          end
+        end
+      end
+
+      def csv_empty?
+        CSV.readlines(@store_credit_updater.data_file.path) == [[]]
+      end
+
+      def set_row
+        row = []
+        CSV_HEADERS.each do |key, value|
+          row << create_csv_row(key, value)
+        end
+        row
+      end
+
+      def create_csv_row(key, value)
+        ( key == :Status ) ? error_message : @row[value.to_s]
+      end
+
+      def error_message
+        @error ? @error : 'Successfully Updated'
+      end
+
+      def update_stocks_with_csv_values
+        admin = Spree::User.admin.first
+        store_credit = Spree::StoreCredit.new(amount: @row['Store_Credit'].to_f, created_by_id: admin.id, currency: "USD", category_id: @row['Category_ID'], memo: @row['Memo'])
+        @user.store_credits << store_credit
+        @successfull_records += 1
+      end
+
+      def find_user
+        Spree::User.find_by_email(@row['Email'])
+      end
+end

app/views/spree/admin/users/_import_button.html.erb

@@ -0,0 +1,7 @@
+<% if request.path == admin_users_path %>
+  <%= form_tag import_store_credits_admin_users_path, multipart: true, class: 'form-inline', data: { hook: "csv_form" } do %>
+    <%= file_field_tag :file, class: 'file-browse' %>
+    <%= submit_tag Spree.t(:import), class: 'btn-success btn' %>
+    <%= link_to Spree.t(:example) , sample_store_credit_csv_admin_users_path, class: 'sample-download' %>
+  <% end %>
+<% end %>

app/views/spree/shared/_base_mailer_header.html.erb

@@ -0,0 +1,33 @@
+<!-- You can override this template to design your own header. -->
+<table class="row header">
+  <tr>
+    <td class="center" align="center">
+      <center>
+
+        <table class="container">
+          <tr>
+            <td class="wrapper last">
+
+              <table class="twelve columns">
+                <tr>
+                  <td class="twelve sub-columns last">
+                    <% if frontend_available? %>
+                      <%= link_to root_url, class: 'template-label' do %>
+                        <%= image_tag Spree::Config.logo, class: 'logo', alt: Spree::Store.current.name, title: Spree::Store.current.name %>
+                      <% end %>
+                    <% else %>
+                      <%= image_tag Spree::Config.logo, class: 'logo', alt: Spree::Store.current.name, title: Spree::Store.current.name %>
+                    <% end %>
+                  </td>
+                  <td class="expander"></td>
+                </tr>
+              </table>
+
+            </td>
+          </tr>
+        </table>
+
+      </center>
+    </td>
+  </tr>
+</table>

app/views/spree/store_credit_updater_mailer/update_admin.html.erb

@@ -0,0 +1,8 @@
+<div>
+  <h5><%= Spree.t(:update_status) %></h5>
+  <ul>
+    <li>Number of records imported : <%= @total_records %> </li>
+    <li>Number of records failed : <%= @failed_records %> </li>
+  </ul>
+  <strong>Attached is a csv file of failed records for your information.</strong>
+</div>

config/initializers/spree_bulk_store_credits_constants.rb

@@ -0,0 +1,3 @@
+STORE_CREDIT_CSV_FILE = {
+  sample_store_credit_file: SpreeBulkStoreCredits::Engine.root.join('lib', 'sample_csv', 'bulk_store_credits_example.csv')
+}

config/locales/en.yml

@@ -2,4 +2,8 @@
 # See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
 
 en:
-  hello: "Hello world"
+  spree:
+    import: Import Store Credit CSV
+    example: Download Sample File
+    email_sent: "%{filename} has been successfully imported. Details will be sent shortly to you over an email."
+    user_not_found: User with this email Not found

config/routes.rb

@@ -1,3 +1,9 @@
 Spree::Core::Engine.add_routes do
   # Add your extension routes here
+  namespace :admin, path: Spree.admin_path do
+    resources :users do
+      collection { post :import_store_credits }
+      collection { get :sample_store_credit_csv }
+    end
+  end
 end

db/migrate/20180806080802_create_spree_bulk_store_credit_updater.rb

@@ -0,0 +1,8 @@
+class CreateSpreeBulkStoreCreditUpdater < ActiveRecord::Migration[4.2]
+  def change
+    create_table :spree_bulk_store_credit_updaters do |t|
+      t.boolean :job_executed, default: false
+      t.attachment :data_file
+    end
+  end
+end

lib/sample_csv/bulk_store_credits_example.csv

@@ -0,0 +1,2 @@
+Email,Store Credit,Memo,Category ID
+[email protected],10,Order benefit,1