Rails%203%20In%20Action

to these lines:
Classes outside your control
params[:post].merge!(:user => current_user)
@post = @topic.posts.create(params[:post])
We’re putting this on separate lines to make the second line a little shorter for readability.
When you run bin/rspec spec/integration/posts_spec.rb again, you’ll see
that it all passes:
2 examples, 0 failures
Now you’re authenticating users before they can create new posts, and then assigning
them as the user when they’re authenticated. That means you’re done here and
should run all the specs to make sure everything works with a quick run of bin/rspec
spec. You should see this:
7 examples, 0 failures
Good to see! Let’s make a commit:
git add .
git commit -m "Authenticate users and link them to posts"
You’ve now got a pretty good starting feature set for your engine. Users are able to create
topics and posts, but only if they’re authenticated in the parent application, and
that’s a good start. You could generate further features, such as editing topics and
posts, but that’s an exercise best left to you. 20
One thing you’ve still got left to do is fix up the second placeholder in app/views/
topics/index.html.erb, which shows the last post for a topic. You’ll do this now; it’ll
only take a moment.
17.7.6 Showing the last post
Currently in app/views/topics/index.html.erb you have this line:
last post was at TIME by USER
It would be extremely helpful to your users if this returned useful information rather
than a placeholder. You’ve finished linking posts and users, and so now is a great time
to fix this placeholder up.
To begin with, you’re going to add a test to spec/integration/posts_spec.rb to
ensure that you do indeed see the last post’s information. It’s the same function displayed
to unauthenticated users as it is authenticated users, but you’re going to need
current_user set by either sign_out! or sign_in!. Therefore, you’ll put this test
inside the context "unauthenticated users" block to make things easy. The code for
this test is shown in the following listing.
20 Additionally, this is a long enough chapter already!
509