This is not very DRY, since you're repeating the knowledge that comments have a "body" in three places (twice here, and once down in the params method). Better would be either this:

```
@comment = article.comments.new(comment_params)
@comment.user = current_user
```

or this:

```
@comment = article.comments.new(comment_params.merge(user: current_user))
```

`merge` is an instance method of hashes that merges in the keys/values from another hash.