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Creation of a french version of the play tutorial
Partial translation done. Also added link to getting started from the tutorial
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Configurer et utiliser Play framework 2.0 avec Scala IDE 2.0 | ||
============================================================ | ||
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Que contient ce guide? | ||
---------------------- | ||
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Ce guide vous montera comment configurer une application web Play pour pouvoir l'importer dans Scala IDE, comment configurer `Scala IDE`_ pour pouvoir utiliser correctement le Play framework et finallement comment déveloper un application web Play avec Scala IDE. | ||
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Prérequis | ||
......... | ||
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* `Eclipse`_ 3.6.2 (Helios) avec Scala IDE pour Scala 2.9 installé (update site: http://download.scala-ide.org/releases-29/stable/site). | ||
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La page :ref:`getting started<gettingstarted_getting-started>` (en anglais) contient les instructions pour l'installation de Scala IDE. | ||
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* Une connaissance de base de l'interface utilisateur d'Eclipse est nécessaire. | ||
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* Aucune connaissance du language Scala est nécessaire (dans ce guide). | ||
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* Aucune connaissance de Play framework est nécessaire (dans ce guide). | ||
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Installer Play 2.0 | ||
------------------ | ||
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Pour pouvoir créer une web application Play, Play framework est necessaire. Si vous ne l'avez pas encore installé, suivez ces quelques etapes, ou utilisez la `documentation de Play`__. | ||
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* Download Play framework 2.0-beta from http://www.playframework.org/2.0. | ||
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* Unzip it in your preferred location. Let's say ``/path/to/play20`` for the purpose of this document. | ||
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* For convenience, add the Play folder to your system PATH: | ||
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.. code-block:: bash | ||
export PATH=$PATH:/path/to/play20 | ||
__ `Play documentation`_ | ||
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Creating a Play 2.0 application | ||
------------------------------- | ||
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* In your development folder, ask Play to create a new web application, as a ``simple Scala application``. | ||
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.. image:: images/play20-scalaide20-01.png | ||
:alt: play new testApp | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-01.png | ||
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* Go into the application folder. | ||
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.. image:: images/play20-scalaide20-02.png | ||
:alt: cd testApp | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-02.png | ||
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* And launch Play. | ||
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.. image:: images/play20-scalaide20-03.png | ||
:alt: play | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-03.png | ||
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* In Play, launch your newly created web application. | ||
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.. image:: images/play20-scalaide20-04.png | ||
:alt: run | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-04.png | ||
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* Check that the application works: http://localhost:9000/. | ||
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.. image:: images/play20-scalaide20-05.png | ||
:alt: running | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-05.png | ||
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Configuring the Play 2.0 web application for Scala IDE | ||
------------------------------------------------------ | ||
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Now that the Play application is running, it needs to be configured so it can be imported into Scala IDE. | ||
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The eclipsify support is not yet integrated it Play 2.0, so we are using `sbteclipse`_ to make it an Eclipse project. | ||
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* First, exit Play using ``ctrl-d``, and then ``exit``. | ||
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.. image:: images/play20-scalaide20-06.png | ||
:alt: ctrl-d, exit | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-06.png | ||
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* Add sbteclipse to sbt by creating the ``project/build.sbt`` file and adding the following lines. | ||
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.. code-block:: scala | ||
resolvers += Classpaths.typesafeResolver | ||
addSbtPlugin("com.typesafe.sbteclipse" % "sbteclipse" % "1.5.0") | ||
.. image:: images/play20-scalaide20-07.png | ||
:alt: modify project/build.sbt | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-07.png | ||
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* Go back into Play. | ||
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.. image:: images/play20-scalaide20-08.png | ||
:alt: play | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-08.png | ||
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* Generate the Eclipse project configuration. | ||
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.. image:: images/play20-scalaide20-09.png | ||
:alt: eclipse | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-09.png | ||
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* And relaunch the web application, so it is available later. | ||
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.. image:: images/play20-scalaide20-10.png | ||
:alt: run | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-10.png | ||
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Configuring Scala IDE for the Play 2.0 web application | ||
------------------------------------------------------ | ||
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Setting a few preferences in Eclipse will make everything easier to use. | ||
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* Open the internal web browser view in Eclipse, and check you can access your web application. | ||
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.. image:: images/play20-scalaide20-12.png | ||
:alt: http://localhost:9000/ | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-12.png | ||
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* Configure Eclipse so changes on the filesystem are automatically picked up. | ||
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.. image:: images/play20-scalaide20-13.png | ||
:alt: refresh automatically | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-13.png | ||
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* If you don't have the Web Development Tools for Eclipse installed, Eclipse opens ``.html`` files in a web browser. Configure it to use the ``Scala Editor`` instead. | ||
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.. image:: images/play20-scalaide20-14.png | ||
:alt: HTML file in text editor | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-14.png | ||
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Importing the Play web application into Scala IDE | ||
------------------------------------------------- | ||
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Everything is setup, it is time to import the project in the IDE. | ||
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* Import the Play 2.0 application as an ``Existing Projects into Workspace``. | ||
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.. image:: images/play20-scalaide20-15.png | ||
:alt: import project | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-15.png | ||
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* Everything is good, everything compiles. | ||
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.. image:: images/play20-scalaide20-16.png | ||
:alt: everything compiles | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-16.png | ||
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Doing some development | ||
---------------------- | ||
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Now that everything is setup, we can change the content. Let's add a way to have a quote on the main page. | ||
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* First, create the ``models.Quote`` class using the new ``Scala Class`` wizard. | ||
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.. image:: images/play20-scalaide20-19.png | ||
:alt: create model.Quote | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-19.png | ||
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* Add variables to ``models.Quote``. | ||
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.. code-block:: scala | ||
package models | ||
case class Quote(val text: String, val author: String) { | ||
} | ||
* Add an extra parameter to the ``index.scala.html`` view and update the layout. | ||
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.. code-block:: scala | ||
@(message: String, quote: models.Quote) | ||
@main("Welcome to Play 2.0 beta") { | ||
@play20.welcome(message) | ||
<p>@quote.text<em> - @quote.author</em></p> | ||
} | ||
* The templates are transformed into Scala code by the Play framework, so use the ``refresh`` button in the internal web browser to trigger it. | ||
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Play returns a compilation error, the application is not using the template correctly. The error is also visible in the code of ``Application.scala``. | ||
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.. image:: images/play20-scalaide20-17.png | ||
:alt: compilation error | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-17.png | ||
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* Fix the application code, using a smart quote. | ||
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.. code-block:: scala | ||
def index = Action { | ||
Ok(views.html.index("Your new application is ready.", | ||
Quote("Citer les pensees des autres, c'est regretter de ne pas les avoir trouvees soi-meme.", | ||
"Sacha Guitry"))) | ||
} | ||
* The code compiles. Check the result in the internal web browser. | ||
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.. image:: images/play20-scalaide20-18.png | ||
:alt: done | ||
:width: 100% | ||
:target: ../../_images/play20-scalaide20-18.png | ||
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Going further | ||
------------- | ||
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You now have all you need to create great web applications with Play 2.0 and Scala. | ||
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For more information about Play 2.0, check out the `Play 2.0 wiki`_. | ||
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For more information about Scala, go to the `documentation website`_ or get the downloadable `eBook`_. | ||
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.. _Scala IDE: http://www.scala-ide.org | ||
.. _Eclipse: http://www.eclipse.org/ | ||
.. _Play documentation: https://github.com/playframework/Play20/wiki/Installing | ||
.. _sbteclipse: https://github.com/typesafehub/sbteclipse | ||
.. _Play 2.0 wiki: https://github.com/playframework/play20/wiki | ||
.. _documentation website: http://docs.scala-lang.org/ | ||
.. _eBook: http://typesafe.com/resources/scala-for-the-impatient |
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.. _gettingstarted_getting-started: | ||
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Getting Started | ||
=============== | ||
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