Add ActionMailer to inform admins about new screenshots

This version only informs Christoph as a test

app/controllers/packages_controller.rb

@@ -123,6 +123,11 @@ class PackagesController < ApplicationController
     # if @invalid_images…
     # ' #{image.image_file_name} (#{image.errors[:image].join(' and ')})
 
+    # Inform the admins about the upload
+    if @valid_images.any?
+      AdminMailer.with(package: @package).new_uploads_email.deliver_now
+    end
+
     # Rails does not allow dots in the URL. So we cannot use the 'respond_to'
     # and 'format' ways to handle parameters. Instead the 'returns' parameters
     # is set in routes.rb to signal that this method was called by AJAX.

app/mailers/admin_mailer.rb

@@ -0,0 +1,9 @@
+class AdminMailer < ApplicationMailer
+  default from: 'notifications@mentors.debian.net'
+
+  def new_uploads_email
+    @package = params[:package]
+    #@url  = 'http://example.com/login'
+    mail(to: 'email@christoph-haas.de', subject: 'Please moderate new screenshot uploads')
+  end  
+end

app/mailers/application_mailer.rb

@@ -0,0 +1,5 @@
+class ApplicationMailer < ActionMailer::Base
+  default from: 'from@example.com'
+  layout 'mailer'
+end
+

app/views/admin_mailer/new_uploads_email.text.erb

@@ -0,0 +1,7 @@
+test
+
+package is <%= @package.name %>
+
+link would be <%= url_for @package %>
+
+goodbye

app/views/layouts/mailer.text.slim

@@ -0,0 +1 @@
+= yield