preview mailers rails
To preview mailers in Ruby on Rails, you can follow these steps:
Create a new mailer: Start by creating a new mailer in your Rails application. This can be done by running the following command in your terminal:
rails generate mailer <MailerName>
Replace<MailerName>
with the desired name for your mailer.Define a preview class: Inside the
test/mailers/previews
directory, create a new file named<MailerName>_preview.rb
. This file should contain your mailer's preview class. For example, if your mailer is namedUserMailer
, the preview class file would beuser_mailer_preview.rb
.Define preview methods: In the preview class file, define methods that will generate preview content for your mailers. Each method should return a mailer instance with the desired attributes. For example:
ruby class UserMailerPreview < ActionMailer::Preview def welcome_email UserMailer.welcome_email(User.first) end end
In this example, thewelcome_email
method generates a preview of the welcome email, passing in the first user from the database.Configure preview routes: In your
config/routes.rb
file, add the following line to enable mailer previews:ruby if Rails.env.development? mount MyMailerPreview => 'mailers' end
ReplaceMyMailerPreview
with the name of your mailer preview class.Access the previews: Start your Rails server and go to
http://localhost:3000/mailers
in your browser. You should see a list of available mailers and their preview methods. Click on a method to view the preview content.
By following these steps, you can easily preview your mailers in Ruby on Rails.