Rails is one of my favourite frameworks, I think because it ships with a little known feature called ActionMailer::Preview, which I really want every Rails developer to know about :D
It renders your mailers & lets your preview them in the browser, which means if you want to tweak some code or totally redesign it, you can just visit http://127.0.0.1:3000/rails/mailers on your local development machine & get building.
Code Sample
# spec/mailers/previews/user_mailer_preview.rb
# Preview all emails at http://localhost:3000/rails/mailers
class UserMailerPreview < ActionMailer::Preview
def user_welcome_notification
UserMailer.user_welcome_notification(user)
end
private
def user
@user ||= FactoryBot.build(:user)
end
end
FactoryBot For Sample Data
I used to use User.first as the starting point for my sample data, but I think a better approach is to use the FactoryBot factories. The main advantage is it encourages me to write better factories & increases the value for money they offer.
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