Rails%203%20In%20Action

Namespace-based CRUD
git add .
git commit -m "Added admin namespaced users controller"
git push
7.5 Namespace-based CRUD
Now that only admins can access this namespace, you can create the CRUD actions for
this controller too, as you did for the TicketsController and ProjectsController
controllers. Along the way, you’ll also set up a homepage for the admin namespace.
For this new CRUD resource, you first write a feature for creating a user and put it
at features/creating_users.feature, as shown in the following listing.
Listing 7.19 features/creating_users.feature
Feature: Creating Users
In order to add new users to the system
As an admin
I want to be able to add them through the backend
Background:
Given there are the following users:
| email | password | admin |
| admin@ticketee.com | password | true |
And I am signed in as them
Given I am on the homepage
When I follow "Admin"
And I follow "Users"
When I follow "New User"
Scenario: Creating a new user
And I fill in "Email" with "newbie@ticketee.com"
And I fill in "Password" with "password"
And I press "Create User"
Then I should see "User has been created."
Scenario: Leaving email blank results in an error
When I fill in "Email" with ""
And I fill in "Password" with "password"
And I press "Create User"
Then I should see "User has not been created."
And I should see "Email can't be blank"
When you run this feature using bin/cucumber features/creating_users.feature,
the first four steps pass; but when you follow the Admin link, it fails because the link
doesn’t exist yet:
When I follow "Admin"
no link with title, id or text 'Admin' found (Capybara::ElementNotFound)
7.5.1 Adding a namespace root
Of course, you need this link for the feature to pass, but you want to show it only for
admins. You can use the admins_only helper you defined earlier and put the link in
app/views/layouts/application.html.erb in the nav element:
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