Book Image

Learning Play! Framework 2

By : Andy Petrella
Book Image

Learning Play! Framework 2

By: Andy Petrella

Overview of this book

<p>The Learning Play! Framework 2 has been created for web developers that are building web applications. The core idea is to focus on the HTTP features and to enable them through a simplification lens. Building a web application no longer requires a configuration phase, an environment setup, or a long development lifecycle - it's integrated!<br /><br />Learning Play! Framework 2 will enable any web developers to create amazing web applications taking advantage of the coolest features. It's the fastest way to dive into Play!, focusing on the capabilities by using them in a sample application. Although essentially Java based code, a Scala version is presented as well – giving an opportunity to see some Scala in action.<br /><br />After setting up the machine and learning some Scala, you will construct an application which builds from static to dynamic, before introducing a database. <br /><br />Then we'll focus on how data can be consumed and rendered in several ways. This will enable some real time communication through WebSocket and Server-Sent Event – on both server and client sides.</p> <p>The book will end with testing and deployment, which completes any web development project.</p>
Table of Contents (20 chapters)
Learning Play! Framework 2
Credits
About the Author
Acknowledgement
About the Reviewers
www.packtpub.com
Preface
Materials
Index

Playing around


Now that we have a good understanding of how a template can help in creating views, we'll try to adapt our templates to make them interesting. The idea is to fix all the concepts seen so far in your mind.

Laying out

In the first section, we created a listContainer template that was able to render a sequence of strings into a ul HTML element. In this section, we'll adapt it a bit to enable a header and a footer around the list. For that, we'll use currying and the internal HTML representation of Play! 2.

So, all we have to do is redefine the listContainer function to take two new parameter blocks, header and footer, which are HTML excerpts.

As expected, the type of these new parameters is Html, which is the internal representation of HTML blocks in Play! 2. Then, we use them right before and right after the block disPlay!ing the list, and we remove the previoush1 element (which was saying Here we go!).

Note

We also encapsulated the whole thing into a dedicated div element, which...