Java Reference
In-Depth Information
In Listing 8-12, the template takes two parameters.
@content
is a parameter that represents valid HTML
to be written in the body of the document. The type of content is
Html
, which is the Scala structure
that can be written as HTML when invoked by the template. The imported
helper._
provides the form
creation helpers—that is, the form function that creates the HTML <form> with filled action and method
attributes, and the
inputText
function that creates the HTML input given as a form field.
Note
The
play.data
package contains several helpers to handle HTTP form data submission
and validation.
Now you can implement the
books()
action, as illustrated in Listing 8-13.
Listing 8-13. Implementing the Books Action
public static Result books() {
return ok(
views.html.index.render(Book.all(), bookForm)
);
}
The
books()
action renders a 200 OK result filled with the HTML, which is rendered by the
index.
scala.html
template called with the
books
list and the
bookForm
form.
Figure 8-23.
Displaying the book creation form
If you submit the book creation form, you will still get the TODO page. You need to implement the
newBook()
action to be able to create the book. Listing 8-14 illustrates the implementation of the
newBook()
action.