Rails%203%20In%20Action

Sending ticket notifications
this mailer and will set the “from” address on all emails to be the one specified. Let’s
change this to be ticketee@gmail.com.
Now that you have the Notifier class defined, what happens when you run your
feature? Let’s run it using bin/cucumber features/ticket_notifications.feature
and find out:
undefined method `comment_updated' for Notifier:Class (NoMethodError)
./app/observers/comment_observer.rb:3:in `after_create'
In this class, you need to define the comment_updated method, which will build an
email to send out when a comment is updated. This method needs to get the email
address for all the watchers for comment’s ticket and send an email to each of them. To
do this, you can define the method like this:
def comment_updated(comment, user)
@comment = comment
@user = user
mail(:to => user.email,
:subject => "[ticketee] #{comment.ticket.project.name} -
#{comment.ticket.title}")
end
Even though you’re defining this as an instance method (the error complains about a
class method), the comment_updated method is truly the method that is used by Action
Mailer to set up your email. This is a little bit of magic performed by Action Mailer for
your benefit. 7
When this method is called, it will attempt to render a plain-text template for the
email, which should be found at app/views/notifier/comment_updated.text.erb. You’ll
define this template after you’ve got the method working. You define a @comment
instance variable as the first line of your method so that the object in comment will be
available to your template.
You use the mail method to generate a new email, passing it a hash containing to
and subject keys, which define where the email goes to as well as the subject for the
email.
When you run bin/cucumber features/ticket_notifications.feature, you see
that the user now receives an email and therefore is able to open it, but the content
you’re looking for is not there:
Then "alice@ticketee.com" should receive an email
When "alice@ticketee.com" opens the email
Then they should see "updated the Release date ticket" in the email body
expected "" to include "updated the Release date ticket" ...
But why is this not seeing the content? Because you don’t have a template set up just at
the moment! It’s good to know at this point that if you ever wanted to debug an
email’s content, there’s a “Then show me the page” inspired step that you can use
called “Then save and open current email.” Let’s add this on a new line right before
7 By calling the method on the class, it’s caught by method_missing, which initializes a new instance of this
class and then eventually ends up calling your comment_update method.
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