feat(mailers): add NotificationMailer, new_post

examples/blog/app/mailers/notification_mailer_preview.rb

@@ -0,0 +1,24 @@
+class NotificationMailerPreview < Prism::Mailer::Preview
+  def new_post
+    post = Post.first || Post.create_with_unique_slug(title: 'Preview Post', body: 'Fixture body for mailer previews.')
+    NotificationMailer.new_post(post.id)
+  end
+
+  def welcome
+    user = User.first || User.create!(email: 'preview@example.com', password: 'preview passphrase',
+                                       password_confirmation: 'preview passphrase')
+    NotificationMailer.welcome(user.id)
+  end
+
+  def password_reset
+    user = User.first || User.create!(email: 'preview@example.com', password: 'preview passphrase',
+                                       password_confirmation: 'preview passphrase')
+    NotificationMailer.password_reset(user.id, user.generate_token_for(:password_reset))
+  end
+
+  def confirmation_instructions
+    user = User.first || User.create!(email: 'preview@example.com', password: 'preview passphrase',
+                                       password_confirmation: 'preview passphrase')
+    NotificationMailer.confirmation_instructions(user.id, user.generate_token_for(:email_confirmation))
+  end
+end