Rails 4 Mailer Uninitialized Constant
actionmailer, mailer, ruby, ruby-on-rails
Solution
Rename your `availabke_date_mailer.rb` and store it at the correct location:
app/mailers/listing_available_date_mailer.rb
Rails does a lot of magic for you, but the magic only works if you follow its conventions. One of the conventions that allows autoloading and removes the need to require all files manually is that class names (in camelcase) have to match the name of the file (in underscore) in which they are defined.
In a next step, you will have to rename your view. Because following Rails conventions it needs to be named like this:
app/views/listing_available_date_mailer/listing_available_expire.html.erb
Read about the Action Mailer Basics in the Rails Guides.
Problem
I am trying to setup a mailer to where when a listing's available date is today, it will fire off a mailer. To do that, I am using `Date.today`. The other relevant code and error is below. Thanks in advance. availabke_date_mailer.rb ``` class ListingAvailableDateMailer < ActionMailer::Base default from: "Nooklyn <help@nooklyn.com>" def listing_available_expire(listing, agent) @listing = listing @agent = agent mail to: "#{agent.email}", subject: 'Availability of your listing needs to be changed!' end end ``` listing_available_expire_notification.html.erb: ``` Hiya <%= @agent.first_name %>,<br><br> The Available Date for your listing has passed. Please make the necessary changes.<br><br> Listing: <%= link_to @listing.short_address, @listing, target: "_blank" %><br><br> Available Date: <%= @listing.date_available %><br><br>` ``` available_date.rake: ``` namespace :listings do desc "Send a message to an agent if the available date on their listing has passed" task listing_available_expire: :environment do Listing.all.each do |listing| if listing.date_available == Date.today ListingAvailableDateMailer.listing_available_expire(listing,listing.listing_agent).deliver_now end end end end ``` Error: