Restore extracted methods

* Show large class after extract method

Author: jferris

example_app/app/controllers/invitations_controller.rb

@@ -7,32 +7,51 @@ def new
 
   def create
     @survey = Survey.find(params[:survey_id])
-
-    @recipients = params[:invitation][:recipients]
-    recipient_list = @recipients.gsub(/\s+/, '').split(/[\n,;]+/)
-
-    @invalid_recipients = recipient_list.map do |item|
-      unless item.match(EMAIL_REGEX)
-        item
-      end
-    end.compact
-
-    @message = params[:invitation][:message]
-
-    if @invalid_recipients.empty? && @message.present?
+    if valid_recipients? && valid_message?
       recipient_list.each do |email|
         invitation = Invitation.create(
           survey: @survey,
           sender: current_user,
           recipient_email: email,
           status: 'pending'
         )
-        Mailer.invitation_notification(invitation, @message)
+        Mailer.invitation_notification(invitation, message)
       end
-
       redirect_to survey_path(@survey), notice: 'Invitation successfully sent'
     else
+      @recipients = recipients
+      @message = message
       render 'new'
     end
   end
+
+  private
+
+  def valid_recipients?
+    invalid_recipients.empty?
+  end
+
+  def valid_message?
+    message.present?
+  end
+
+  def invalid_recipients
+    @invalid_recipients ||= recipient_list.map do |item|
+      unless item.match(EMAIL_REGEX)
+        item
+      end
+    end.compact
+  end
+
+  def recipient_list
+    @recipient_list ||= recipients.gsub(/\s+/, '').split(/[\n,;]+/)
+  end
+
+  def recipients
+    params[:invitation][:recipients]
+  end
+
+  def message
+    params[:invitation][:message]
+  end
 end