Rails%203%20In%20Action

Deleting tickets
In this section, you implemented edit and update for the TicketsController by
using the scoped finders and some familiar methods, such as update_attributes.
You’ve got one more part to go: deletion.
5.4 Deleting tickets
We now reach the final story for this nested resource, the deletion of tickets. As with
some of the other actions in this chapter, this story doesn’t differ from what you used
in the ProjectsController, except you’ll change the name project to ticket for your
variables and flash[:notice]. It’s good to have the reinforcement of the techniques
previously used: practice makes perfect.
Let’s use the code from the following listing to write a new feature in features/
deleting_tickets.feature.
Listing 5.15 features/deleting_tickets.feature
Feature: Deleting tickets
In order to remove tickets
As a user
I want to press a button and make them disappear
Background:
Given there is a project called "TextMate 2"
And that project has a ticket:
| title | description |
| Make it shiny! | Gradients! Starbursts! Oh my! |
Given I am on the homepage
When I follow "TextMate 2"
And I follow "Make it shiny!"
Scenario: Deleting a ticket
When I follow "Delete Ticket"
Then I should see "Ticket has been deleted."
And I should be on the project page for "TextMate 2"
When you run this using bin/cucumber features/deleting_tickets.feature, the
first step fails because you don’t yet have a Delete Ticket link on the show template for
tickets:
When I follow "Delete Ticket"
no link with title, id or text 'Delete Ticket' found (Capybara::ElementNotFound)
You can add the Delete Ticket link to the app/views/tickets/show.html.erb file just
under the Edit link (shown in the next listing), exactly as you did with projects.
Listing 5.16 app/views/tickets/show.html.erb
:delete,
:confirm => "Are you sure you want to delete this ticket?" %>
The :method => :delete is specified again, turning the request into one headed for
the destroy action in the controller. Without this :method option, you’d be off to the
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