Intro to Laravel 5

Introduction to the Laravel 5 framework. Learn why this new framework has been taking the PHP world by storm.

Are you ashamed to admit you're a PHP developer? Have you been using the same old, boring PHP framework for years? Tired of your PHP applications turning into enormous beasts? Maybe you've heard about Laravel but haven't made the effort to dive into it? In this presentation, we'll walk through what makes Laravel an elegant, fun, and exciting framework to make PHP applications that you'll be proud of.

Transcript

1. A PHP Framework For Web Artisans
   

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2. Ben Edmunds
   @benedmunds
   http://benedmunds.com
   Who is this guy?
   

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3. Ben Edmunds
   Open Source
   Author
   PHP Town Hall Podcast
   CTO at Mindfulware
   Who is this guy?
   

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4. What is it?
   PHP Web Framework
   Full-stack
   (what does that even mean anymore)
   Open Source
   

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5. Who’s behind it?
   Taylor Otwell
   @taylorotwell
   

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6. I already use X. Why should I use Laravel?
   

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7. Why use it?
   Expressive Syntax
   Route::get(‘user/{id}’, function($id)
   {
   $user = User::find($id);
   return view(‘home')
   ->with('user', $user);
   });
   

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8. Why use it?
   Utilizes the latest PHP features
   Namespaces
   PSR-4 Autoloading
   Interfaces
   IoC
   

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9. Why use it?
   Service Providers
   De-Coupled
   Flexible
   DRY
   Event Handling
   

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10. Why use it?
    Contracts = Groups of Interfaces
    Loose Coupling
    Testability
    Explicit
    Flexible
    

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11. Why use it?
    Facades = Quick Start
    $object = new class;
    $object->set('key', 'value');
    Class::set('key', 'value');
    

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12. Why use it?
    Well Documented
    http://laravel.com/docs
    

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13. Why use it?
    Artisan CLI Tool
    $ php artisan migrate
    

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14. Why use it?
    Built on Composer
    http://packagist.com
    Entirely Modular
    PSR-2, PSR-3, PSR-4, PSR-7
    Compliant
    

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15. Why use it?
    Test Coverage
    Focus on Testable Code
    

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16. Why use it?
    Full Stack Framework
    Full Stack Ecosystem
    

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17. Why use it?
    Homestead
    Pre-made Vagrant Box
    Nginx
    MySQL/PostgreSQL
    Beanstalkd
    Redis
    Memcached
    PHP / HHVM
    Node
    

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18. Why use it?
    PAAS to quickly deploy PHP apps to the “cloud”
    Digital Ocean
    Linode
    AWS
    

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19. Let’s do some comparisons
    

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20. Comparison
    MVC Design
    Lightweight
    Fast
    Excellent Docs
    Compatibility
    Technical Debt
    

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21. Comparison
    MVC Design
    Heavy but has Silex
    Slow-ish
    Complex
    Good Docs
    Modular
    Backed by SensioLabs
    

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22. Beyond MVC Design
    Easy to get started
    Consistent/Stable
    Fast
    Excellent Docs
    Threw out previous
    framework ideas and
    started over
    Comparison
    

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23. OK, I’ll try it. How do I get started?
    

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24. Download
    Composer Based Install
    $ composer create-project
    laravel/laravel --prefer-dist
    

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25. Structure
    Commands
    Providers
    Controller || Route || Both
    Middleware
    Services
    Views
    Model / Repository / FLEXIBILITY
    

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26. Structure
    app
    Commands
    Handlers
    Commands
    Events
    Http
    Controllers
    Middleware
    Requests
    Providers
    Services
    config
    resources
    views
    tests
    app
    Commands
    Console
    Events
    Handlers
    Commands
    Events
    Http
    Controllers
    Middleware
    Requests
    Providers
    Services
    bootstrap
    config
    database
    migrations
    seeds
    public
    package
    resources
    lang
    views
    storage
    cache
    logs
    meta
    sessions
    views
    work
    tests
    

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27. Routes
    

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28. Routes
    Create routes at:
    app/Http/routes.php
    include() additional route definitions
    if needed
    

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29. Routes
    What methods are available:
    Route::get();
    Route::post();
    Route::put();
    Route::patch();
    Route::delete();
    Route::any(); //all of the above
    

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30. Routes
    Register multiple verbs for a single route:
    Router::match([‘get’, ‘post’], ‘/’, function(){
    //this will run for both GET and POST
    });
    

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31. Routes
    app/Http/routes.php
    Route::get('/', function(){
    echo ‘Boom!’;
    });
    

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32. Testing
    

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33. Testing
    Runs all tests located at:
    /tests/
    $ php artisan test
    

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34. Testing
    app/Http/routes.php
    Route::get('/', function(){
    echo ‘Boom!’;
    });
    

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35. Testing
    /tests/ExampleTest.php
    Test it! Test it good!
    class ExampleTest extends TestCase {
    function testBasicExample()
    {
    $this->visit('/')
    ->see(‘Boom!');
    

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36. Testing
    $ php artisan test
    Run it!
    PHPUnit 3.6.10 by Sebastian Bergmann.
    Configuration read from ...
    Time: 0 seconds, Memory: 6.25Mb
    OK (1 test, 1 assertion)
    Output
    

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37. API?
    

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38. What about an API? Routes to the rescue!
    

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39. API
    app/Http/routes.php
    Route::get(‘api/user/{id}’, function($id){
    return json_encode([
    ‘user‘ => User::find($id),
    ‘success‘ => true
    ]);
    });
    

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40. API
    app/Http/routes.php
    Route::get(‘api/user/{id}’, function($id){
    return [
    ‘user‘ => User::find($id),
    ‘success‘ => true
    ];
    });
    

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41. API
    /tests/api/UserTest.php
    class UserTest extends TestCase {
    public function testGetUser()
    {
    $this->get(‘/user/1')
    ->seeJson([
    ‘success‘ => true
    ]);
    

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42. API
    Route::get();
    Route::post();
    Route::put();
    Route::patch();
    Route::delete();
    

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43. Controllers
    

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44. Controllers
    OK, routes are cool and all, but
    what if I want to use controllers?
    

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45. Controllers
    app/Http/routes.php
    Route::post('status', 'StatusController@create');
    class StatusController extends Controller {
    public function create(Request $request)
    {
    …
    app/Http/controllers/StatusController.php
    

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46. Shit just got real
    

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47. Middleware
    

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48. Middleware
    Route Filters
    BETTER FASTER STRONGER
    Middleware!
    

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49. Middleware
    Popular Uses:
    Auth
    ACL
    Session
    Caching
    Debug
    Logging
    Analytics
    Rate Limiting
    

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50. Middleware
    Route::post('status',
    ‘StatusController@create’,
    [‘middleware’ => ‘auth’]
    );
    

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51. Middleware
    Route::post('status',
    ‘StatusController@create’,
    [‘middleware’ => [
    ‘first’,
    ‘second’,
    ‘third’,
    ]]
    );
    

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52. Middleware
    class AjaxMiddleware implements Middleware {
    public function handle($request, Closure $next)
    {
    if (!$request->ajax())
    return response('Unauthorized.', 401);
    return $next($request);
    }
    

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53. Middleware
    Groups for DRY routing:
    Route::group(['middleware' => 'auth'], function(){
    Route::get('/statuses', function(){
    …
    });
    …
    

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54. Database
    

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55. Database
    Query Builder
    Eloquent ORM
    Migrations
    Seeding
    

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56. Query Builder
    Simple and Easy to Understand
    Used extensively by Eloquent ORM
    

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57. Query Builder
    $user = DB::table('statuses')
    ->where(‘email’, 'example@gmail.com’)
    ->first();
    Query Row by Email
    

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58. Query Builder
    $id = DB::table('statuses')
    ->insertGetId([
    ‘user_id' => 1,
    'email' => ‘example@gmail.com',
    'text' => ‘Vegas Baby! #zendcon’,
    ]);
    Insert & Get ID
    

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59. Eloquent ORM
    Simple
    Expressive
    Efficient
    

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60. Eloquent ORM
    use Illuminate\Database\Eloquent\Model;
    class Status extends Model {
    }
    Define an Eloquent model
    

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61. Eloquent ORM
    $status =
    App\Status::where(‘user_id’, 1)
    ->first();
    Simple query
    

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62. Eloquent ORM
    $statuses =
    App\Status::where(‘views', '>', 100)
    ->get();
    Slightly more advanced query
    

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63. Eloquent ORM
    Relationships
    class Status extends Model {
    public function user()
    {
    return $this->belongsTo(‘App\User');
    }
    }
    App\Status::find(1)->user->email;
    Retrieve Status Creator Email
    

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64. Eloquent ORM
    Normal Usage
    $statuses = App\Status::all();
    foreach ($statuses as $status)
    echo $status->user->email;
    

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65. Eloquent ORM
    Normal Usage
    $statuses = App\Status::all();
    foreach ($statuses as $status)
    echo $status->user->email;
    SELECT * FROM "statuses"
    foreach result {
    SELECT * FROM "users" WHERE "id" = 1
    }
    100 statuses = 101 queries
    

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66. WTF!? ORMs Suck!
    

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67. Eloquent ORM
    $statuses =
    App\Status::with(‘user’)->get();
    foreach ($statuses as $status)
    echo $status->user->email;
    Eager Loading FTW!
    

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68. Eloquent ORM
    $statuses =
    App\Status::with(‘user’)->get();
    foreach ($statuses as $status)
    echo $status->user->email;
    100 statuses = 2 queries
    SELECT * FROM "statuses"
    SELECT * FROM "users" WHERE "id" IN (1, 2, 3, 4, 5, ...)
    Eager Loading FTW!
    

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69. Eloquent ORM
    creating
    created
    updating
    updated
    saving
    saved
    deleting
    deleted
    restoring
    restored
    Events
    

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70. Views
    

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71. Views
    Route::get('/', function(){
    return view('home.index');
    //resources/views/home/index.blade.php
    });
    Returning a view from a route
    

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72. Views
    Route::get('/', function(){
    return view(‘home.index')
    ->with('email', 'email@gmail.com');
    Sending data to a view
    

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73. Views
    Sending data to a view with magic methods
    Route::get('/', function(){
    $view = view('home.index');
    $view->email = ‘email@gmail.com’;
    return $view;
    

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74. Views
    Blade Templates
    Email Address:
    {{ $email }}
    

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75. Views
    Blade Templates
    Email Address:
    {{ $email or ‘Please enter email’ }}
    

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76. Views
    Blade Templates
    @include(‘user.registration’)
    

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77. Form Requests
    

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78. Form Requests
    Designed just for form handling/validation
    class CreateStatusRequest extends FormRequest
    {
    public function rules() {
    return [
    ‘email’ => ‘required|email',
    ‘text' => ‘required',
    ];
    }
    

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79. Form Requests
    class StatusController extends Controller {
    public function create(CreateStatusRequest $request){
    …
    }
    

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80. Facades
    

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81. Facades
    $var = Session::get('foo');
    Resolves behind the scenes
    Getting a session variable
    

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82. Facades
    Controller Injection to the rescue!
    Managing Class Responsibilities?
    

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83. Facades
    class HomeController extends Controller {
    public function __construct(Request $request){
    $value = $request->session()->get('key');
    }
    Controller Injection
    

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84. Drama
    Da da DOM
    

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85. That’s a Wrap
    Utilizes the best PHP has to offer
    Well designed API with great docs
    Ready to scale architecture
    Go make cool things and have fun
    

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86. Community
    http://github.com/laravel/laravel
    http://docs.laravel.com
    http://forums.laravel.com
    

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87. Resources
    Dayle Rees - Code Bright
    Laravel: From Apprentice to Artisan
    LaraCasts
    

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88. THANKS!
    Ben Edmunds
    @benedmunds
    http://benedmunds.com
    

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