MidwestPHP - Intro to Laravel

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. - See more at: http://midwestphp.com/sessions/Intro_to_Laravel#sthash.6xhUd5Qv.dpuf

Intro to Laravel presented by Ben Edmunds at MidwestPHP on March 2nd, 2013.

Transcript

1. Ben Edmunds
   @benedmunds
   http://benedmunds.com
   A Framework For Web Artisans
   Saturday, March 2, 13
   

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2. Who Am I
   Ben Edmunds
   @benedmunds
   http://benedmunds.com
   Build and lead development teams
   >10 years of experience in the industry
   Specialize in PHP and Javascript
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3. Who Am I
   Ben Edmunds
   @benedmunds
   http://benedmunds.com
   Ion Auth
   http://github.com/benedmunds/CodeIgniter-Ion-Auth
   General
   http://github.com/benedmunds
   Open Source Contributions
   http://appstucco.com
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4. Who Am I
   Personal:
   From Phenix City, AL
   Married for 7 years
   Work for Kforce Government Solutions
   Co-Founder of AppStucco
   Tech Focus:
   PHP (CodeIgniter, Laravel)
   Javascript (Node.js, Express, Phonegap)
   Databases (MySQL, PostGreSQL, MongoDB)
   Ben Edmunds
   @benedmunds
   http://benedmunds.com
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5. What is it?
   PHP Web Framework
   Lightweight (half-stack)
   Open Source
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6. Who’s behind it?
   Dayle Rees
   @daylerees
   Taylor Otwell
   @taylorotwell
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7. I already use X. Why should I use
   Laravel?
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8. Why use it?
   Built on PHP 5.3
   Sinatra-style Routing
   Bundles http://bundles.laravel.com/
   Artisan CLI Tool
   Wave your PHP flag proudly that’s right, I use PHP sucka
   Expressive Syntax
   Eloquent ORM
   Well Documented
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9. Why use it?
   Expressive Syntax
   Utilizes the latest PHP features
   Route::get('user/(:num)', function($id)
   {
   $user = User::find($id);
   return View::make('home')->with('user', $user);
   });
   use Laravel\Database as DB;
   abstract class Model {
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10. Why use it?
    Bundles http://bundles.laravel.com/
    $ php artisan bundle:install twilio
    Artisan CLI Tool
    $ php artisan bundle:install twilio
    Well Documented
    http://laravel.com/docs
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11. Why use it?
    Sinatra-style Routing
    Eloquent ORM
    Route::get('/', function()
    {
    //do neat shit
    });
    $user = new User;
    $user->id = 1;
    $user->save();
    $user = User::find(1);
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12. Let’s do some comparisons
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13. Comparison
    MVC Design
    Sparks
    Lightweight
    Fast
    Excellent Docs
    Compatibility
    Technical Debt
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14. Comparison
    HMVC Design
    Lightweight-ish
    Fast
    Horrible Docs
    API Changes Frequently
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15. Comparison
    MVC Design
    Heavy
    Large Learning Curve
    Slow
    Decent Docs
    Modular
    Backed by ZEND
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16. Comparison
    HMVC Design
    Lightweight
    Fast
    Excellent Docs
    Packages?
    Learned from other
    frameworks
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17. MV[CR] Design
    Bundles
    Lightweight
    Fast
    Excellent Docs
    Threw out previous
    framework ideas and
    started over
    Comparison
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18. OK, I’ll try it.
    How do I get started?
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19. Download
    https://github.com/laravel/laravel
    $ git clone https://github.com/laravel/laravel.git .
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20. Bundles
    http://bundles.laravel.com/
    $ php artisan bundle:install twilio
    $ php artisan bundle:upgrade twilio
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21. Structure
    MV[CR] Design
    Model
    View
    Controller || Route || Both
    Bundles
    Self contained modules
    Has it’s own config, models, routes, views, etc...
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22. Structure
    application
    - config
    - controllers
    - models
    - views
    - routes.php
    - bundles.php
    - etc...
    laravel
    public
    - css
    - img
    - js
    - etc...
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23. Create Route
    Create routes at:
    application/routes.php
    include() additional route definitions
    if needed
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24. Create Route
    application/routes.php
    Route::get('/', function()
    {
    echo ‘Boom!’;
    });
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25. Unit Test
    Runs all tests located at:
    application/tests/*.test.php
    $ php artisan test
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26. Unit Test
    application/tests/routes.test.php
    Test that biotch!
    class TestRoutes extends PHPUnit_Framework_TestCase {
    
    public function testBase()
    
    {
    
    
    $response = Route::forward('GET', '/');
    
    
    $this->assertEquals('Boom!', $response);
    
    }
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27. Unit Test
    $ php artisan test
    Run it!
    PHPUnit 3.6.10 by Sebastian Bergmann.
    Configuration read from ...www/laravel/develop/phpunit.xml
    Time: 0 seconds, Memory: 6.25Mb
    OK (1 test, 1 assertion)
    Output
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28. What about an API?
    Routes to the rescue!
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29. API
    application/routes.php
    Route::get('api/user/(:num)', function($id)
    {
    return json_encode(array(
    ‘users‘ => User::find($id),
    ‘success‘ => true
    );
    });
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30. API
    application/routes.php
    Route::put('api/user', function()
    {
    $user = User::create(array(
    'email' => Input::get(‘email’)
    ));
    return json_encode(array(
    ‘user_id‘ => $user->id,
    ‘success‘ => true
    );
    });
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31. Controllers
    OK, routes are cool and all, but what if I
    want to use controllers?
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32. Controllers
    application/routes.php
    Route::controller(Controller::detect());
    This will give you “CodeIgniter style”
    controller routing.
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33. Shit just got real
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34. Routes
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35. Routes
    What methods are available:
    Route::get();
    Route::post();
    Route::put();
    Route::delete();
    Route::any(); //all of the above
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36. Routes
    Register multiple verbs for a single route:
    Router::register(array('GET', 'POST'), $uri, function(){
    //this will run for both get and post
    });
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37. Route Filters
    Run before or after a given route.
    Register a filter:
    Route::filter('auth', function()
    {
    if (Auth::guest()) return Redirect::to('login');
    });
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38. Route Filters
    Assign a filter to a route:
    Route::get('api/user', array('before' => 'auth', function()
    {
    ...
    }));
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39. Route Filters
    Pattern matching adds a ton of flexibility:
    Route::filter('pattern: api/*', 'auth');
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40. Models
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41. Models
    Fluent Query Builder
    Eloquent ORM
    Schema Builder
    Migrations
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42. Fluent Query Builder
    Similar to CI DB Class
    Simple and Easy to Understand
    Used extensively by Eloquent ORM
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43. Fluent Query Builder
    $user = DB::table('users')->where_email('example@gmail.com')
    ->first();
    Query Row by Email
    $id = DB::table('users')->insert_get_id(array(
    'email' => 'example@gmail.com'
    ));
    Insert & Get ID
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44. Eloquent ORM
    Simple
    Expressive
    Efficient
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45. Eloquent ORM
    class User extends Eloquent {
    }
    Define an Eloquent model
    class Post extends Eloquent {
    }
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46. Eloquent ORM
    $user = User::where_email(‘ben.edmunds@gmail.com’)->first();
    Simple query
    $user = Post::where('views', '>', 100)->get();
    Slightly more advanced query
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47. Eloquent ORM
    Relationships
    class Post extends Eloquent {
    public function user()
    {
    return $this->belongs_to('User');
    }
    }
    Post::find(1)->user->email;
    Retrieve Post Creator Email
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48. Eloquent ORM
    Normal Usage
    $posts = Post::all();
    foreach ($posts as $post)
    {
    echo $post->user->email;
    }
    100 posts = 101 queries
    SELECT * FROM "posts"
    foreach result {
    SELECT * FROM "users" WHERE "id" = 1
    }
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49. WTF!? ORMs Suck!
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50. Eloquent ORM
    Eager Loading
    $posts = Post::with(‘user’)->get();
    foreach ($posts as $post)
    {
    echo $post->user->email;
    }
    100 posts = 2 queries
    SELECT * FROM "posts"
    SELECT * FROM "users" WHERE "id" IN (1, 2, 3, 4, 5, ...)
    Eager Loading FTW!
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51. Eloquent ORM
    Normal Usage
    $posts = Post::all();
    foreach ($posts as $post)
    {
    echo $post->user->email;
    }
    100 posts = 101 queries
    SELECT * FROM "posts"
    foreach result {
    SELECT * FROM "users" WHERE "id" = 1
    }
    Eager Loading
    $posts = Post::with(‘user’)->get();
    foreach ($posts as $post)
    {
    echo $post->user->email;
    }
    100 posts = 2 queries
    SELECT * FROM "posts"
    SELECT * FROM "users" WHERE "id" IN (1, 2, 3, 4, 5, ...)
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52. Views
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53. Views
    Route::get('/', function()
    {
    return View::make('home.index'); //views/home/index.php
    });
    Returning a view from a route
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54. Views
    Route::get('/', function()
    {
    return View::make('home.index')->with('email', 'ben.edmunds@gmail.com');
    Sending data to a view with magic methods
    Route::get('/', function()
    {
    $view = View::make('home.index');
    $view->email = ‘ben.edmunds@gmail.com’;
    return $view;
    Sending data to a view
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55. New Hotness
    Laravel 4
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56. Laravel 4
    PSR-0 and PSR-1 Compliant
    Entirely Modular
    Composer Packages
    Focus on Testing
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57. Laravel 4
    PSR-0 and PSR-1 compliant
    Utilizes several Symfony modules
    Laravel modules can be easily used
    elsewhere using Composer
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58. Laravel 4
    Composer is the future of PHP Frameworks
    Imagine a framework agnostic world
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59. Laravel 4
    {
    "require": {
    "laravel/framework": "4.0.*@dev"
    }
    }
    Install
    php composer.phar install
    Setup composer.json to define dependencies
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60. Laravel 4
    Updating with Composer
    php composer.phar update
    Updating your framework used to land you
    in copy/paste hell, not anymore
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61. Laravel 4
    So how bad is the upgrade to L4
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62. Laravel 4
    Laravel 3 uses a shit-ton of statics
    Hard to test
    Beautiful API
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63. Laravel 4
    Laravel 4 API is EXTREMELY similar
    Backwards compatible in most cases
    Easy to test
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64. Laravel 4
    Uses Facades to expose a static style API
    Keeps testing at the forefront
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65. Laravel 4
    $var = Session::get('foo');
    Behind the scenes
    $app->resolve('session')->get('foo');
    Getting a session variable (same as L3)
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66. Laravel 4
    $app['session'] = function()
    {
    return new MyCustomSessionLayer;
    }
    Facades allow you to inject dependencies
    or override core functionality
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67. Laravel 4
    Facade examples stolen from Kenny Myers
    To learn more:
    http://www.thenerdary.net/post/30859565484/laravel-4
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68. Laravel 4
    Lastly, but most importantly, on the subject
    of unit testing
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69. Laravel 4
    Write Tests
    or Chris will cut you
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70. Laravel 4
    Release Schedule
    Laravel 4.0 - May 2013
    Laravel 4.1 - Nov 2013
    Laravel 4.2 - May 2014
    Laravel 4.3 - Nov 2014
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71. That’s a Wrap
    Utilizes the best PHP has to offer
    Lightweight and crazy fast
    Well designed API with great docs
    Go make cool shit
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72. Community
    http://github.com/laravel/laravel
    http://docs.laravel.com
    http://forums.laravel.com
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73. Ben Edmunds
    @benedmunds
    http://benedmunds.com
    A Framework For Web Artisans
    THANKS!
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