2. What is Symfony2?
• Symfony2 is a PHP Framework that:
1. Provides a selection of components (i.e. the Symfony2
Components) and third-party libraries (e.g. Swiftmailer18 for sending
emails);
2. Provides sensible configuration and a "glue" library that ties all of
these pieces together.
3. Provides the feeling of objective programming cause it’s a MVC
Framework.
3. What is MVC?
• MVC is a software architecture that separates the representation of
information from the user's interaction with it. It consists of:
• A controller can send commands to its associated view to change the view's
presentation of the model (e.g., by scrolling through a document).
• A model notifies its associated views and controllers when there has been a
change in its state. This notification allows the views to produce updated
output, and the controllers to change the available set of commands.
• A view requests from the model the information that it needs to generate an
output representation.
4. Pros
• It allows a lot of flexibility around how the project is setup.
• It is very fast and comparable to other web frameworks
• Propel and Doctrine are both supported but not enforced. The
creator can choose to use whatever they want as an ORM(Object-
relational mapping). Or none at all.
• Some of the Symfony2 components are now being implemented in
large projects such as Drupal and PhpBB.
• Enough documentation and tutorials
9. 1st step Installation
• Download from http://symfony.com/download (standard version)
• If you use php 5,4 it contains built-in web server
• From 5,3 and below use your own web server (e.g xampp)
• Unpack folder in htdocs
• Test it @ http://localhost/symfony2/web/app_dev.php
10.
11. 2nd step Create application bundle
• As you know, a Symfony2 project is made up of bundles.
• Execute in command line:
php app/console generate:bundle --namespace=Ens/JobeetBundle --
format=yml
• Clear cache then:
php app/console cache:clear --env=prod
php app/console cache:clear --env=dev
12. 3rd step The Data Model
Edit the parameters file
;app/config/parameters.ini
[parameters]
database_driver = pdo_mysql
database_host = localhost
database_name = jobeet
database_user = root
database_password = password
Use doctrine in command line to auto-create the database in mysql:
php app/console doctrine:database:create
13. 3rd step The Data Model
# src/Ens/JobeetBundle/Resources/config/doctrine/CategoryAffiliate.orm.yml
EnsJobeetBundleEntityCategoryAffiliate:
type: entity
table: category_affiliate
id:
id:
type: integer
generator: { strategy: AUTO }
manyToOne:
category:
targetEntity: Category
inversedBy: category_affiliates
joinColumn:
name: category_id
referencedColumnName: id
affiliate:
targetEntity: Affiliate
inversedBy: category_affiliates
joinColumn:
name: affiliate_id
referencedColumnName: id
14. 3rd step The ORM
• Now Doctrine can generate the classes that define our objects for us with the command:
php app/console doctrine:generate:entities EnsJobeetBundle
/**
• * Get location
• *
• * @return string
• */
• public function getLocation()
• {
• return $this->location;
• }
15. 3rd step The ORM
We will also ask Doctrine to create our database tables (or to update
them to reflect our setup) with the command:
php app/console doctrine:schema:update --force
Updating database schema...
Database schema updated successfully! "7" queries were executed
16. 4th step Initial Data
• We will use DoctrineFixturesBundle.
• Add the following to your deps file:
[doctrine-fixtures]
git=http://github.com/doctrine/data-fixtures.git
[DoctrineFixturesBundle]
git=http://github.com/doctrine/DoctrineFixturesBundle.git
target=/bundles/Symfony/Bundle/DoctrineFixturesBundle
version=origin/2.0
• Update the vendor libraries:
php bin/vendors install --reinstall
17.
18. 4th step Load data in tables
• To do this just execute this command:
php app/console doctrine:fixtures:load
• See it in Action in the Browser
• create a new controller with actions for listing, creating, editing and
deleting jobs executing this command:
php app/console doctrine:generate:crud --entity=EnsJobeetBundle:Job --route-prefix=ens_job --
with-write --format=yml
19.
20.
21. Till now?
• Barely written PHP code
• Working web module for the job model
• Ready to be tweaked and customized
Remember, no PHP code also means no bugs!
22. 5th step The Layout
• Create a new file layout.html.twig in the
src/Ens/JobeetBundle/Resources/views/ directory and put in the
following code:
23.
24. 5th step The Layout
Tell Symfony to make them available to the public.
php app/console assets:install web
25.
26. 5th step The Routing
• Used to be: /job.php?id=1
• Now with symfony2: /job/1/show
• Even: /job/sensio-labs/paris-france/1/web-developer
27. 5th step The Routing
• Edit the ens_job_show route from the job.yml file:
# src/Ens/JobeetBundle/Resources/config/routing/job.yml
# ...
ens_job_show:
pattern: /{company}/{location}/{id}/{position}
defaults: { _controller: "EnsJobeetBundle:Job:show" }
28. 5th step The Routing
• Now, we need to pass all the parameters for the changed route for it to work:
<!-- src/Ens/JobeetBundle/Resources/views/Job/index.html.twig -->
<!-- ... -->
<a href="{{ path('ens_job_show', { 'id': entity.id, 'company':
entity.company, 'location': entity.location, 'position': entity.position })
}}">
{{ entity.position }}
</a>
<!-- ... -->
29. 5th step The Routing
• NOW: http://jobeet.local/job/Sensio Labs/Paris, France/1/Web Developer
• Need to remove spaces
• This corrects the problem:
static public function slugify($text)
{
// replace all non letters or digits by -
$text = preg_replace('/W+/', '-', $text);
// trim and lowercase
$text = strtolower(trim($text, '-'));
return $text;
}
30. 5th step Route Debugging
• See every route in your application:
php app/console router:debug
• Or a single route:
php app/console router:debug ens_job_show
31.
32. 6th step Testing
• 2 methods:
Unit tests and Functional tests
• Unit tests verify that each method and function is working properly
• Functional tests verify that the resulting application behaves correctly
as a whole
33. 7th and last step Bundles
• Bundles are like modules in Drupal.
• Even symfony2 is a bundle itself.
• Many useful bundles such as
-FOSUserBundle (Provides user management for your Symfony2
Project. Compatible with Doctrine ORM & ODM, and Propel)
-SonataAdminBundle (AdminBundle - The missing Symfony2
Admin Generator)
-FOSFacebookBundle (Integrate the Facebook Platform into your
Symfony2 application)
-KnpPaginatorBundle (SEO friendly Symfony2 paginator to sort
and paginate)
