DIとLaravel

Transcript

1. DIͱLaravel
   @polidog
   

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2. ࣗݾ঺հ
   • @polidog
   • ੩Ԭग़਎
   • ౦ژͰSymfonyॻ͍ͯ͝൧৯΂͍ͯ·͢
   • SymfonyϢʔβʔձͷਓ
   • Symfony޷͖Ͱ͢
   

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3. Dependency Injectionʁ
   

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4. 1 2
   3 namespace App\Http\Controllers;
   4
   5
   6 use App\Executor;
   7
   8 class Index extends Controller
   9 {
   10 /**
   11 * @var Executor
   12 */
   13 private $executor;
   14
   15 /**
   16 * IndexController constructor.
   17 * @param Executor $executor
   18 */
   19 public function __construct(Executor $executor)
   20 {
   21 $this->executor = $executor;
   22 }
   23
   24 public function __invoke()
   25 {
   

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5. ίϯϙʔωϯτؒͷґଘؔ܎
   ΛϓϩάϥϜͷιʔείʔυ
   ͔Βഉআ͠ɺ֎෦ͷઃఆϑΝ
   ΠϧͳͲͰ஫ೖͰ͖ΔΑ͏ʹ
   ͢Διϑτ΢ΣΞύλʔϯ
   (wikipedia)
   

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7. ར༻͢ΔΦϒδΣΫτͷੜ੒
   ʹؔ͢Δ஌ࣝΛอ࣋͠ͳ͍
   

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8. ίϯετϥΫλͷҾ਺Ͱ
   ґଘ͢ΔΦϒδΣΫτΛࢦఆ
   ͢Δ
   

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9. 1 2
   3 namespace App\Http\Controllers;
   4
   5
   6 use App\Executor;
   7
   8 class Index extends Controller
   9 {
   10 /**
   11 * @var Executor
   12 */
   13 private $executor;
   14
   15 /**
   16 * IndexController constructor.
   17 * @param Executor $executor
   18 */
   19 public function __construct(Executor $executor)
   20 {
   21 $this->executor = $executor;
   22 }
   23
   24 public function __invoke()
   25 {
   

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10. ͦͯ͠֎෦͔ΒͦͷΦϒδΣ
    ΫτΛ౉ͯ͠΋Β͏
    

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11. ར༻͢ΔΦϒδΣΫτͷੜ੒
    ʹؔ͢Δ஌ࣝΛอ࣋͠ͳ͍ࣄ
    

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12. Service Container
    

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13. αʔϏείϯςφͱ͸ʁ
    • ΦϒδΣΫτͷੜ੒खॱͷ؅ཧ
    • ੜ੒ͨ͠ΦϒδΣΫτͷ؅ཧ
    

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14. app()
    

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15. ࣮ࡍʹDIΛମݧͯ͠ΈΔ
    

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16. 1 2
    3 namespace App\Http\Controllers;
    4
    5
    6 use App\Executor;
    7
    8 class Index extends Controller
    9 {
    10 /**
    11 * @var Executor
    12 */
    13 private $executor;
    14
    15 /**
    16 * IndexController constructor.
    17 * @param Executor $executor
    18 */
    19 public function __construct(Executor $executor)
    20 {
    21 $this->executor = $executor;
    22 }
    23
    24 public function __invoke()
    25 {
    

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17. 5
    6 class Executor
    7 {
    8 /**
    9 * @var Processor
    10 */
    11 private $output;
    12
    13 /**
    14 * @var string
    15 */
    16 private $name;
    17
    18 /**
    19 * Executor constructor.
    20 * @param Processor $output
    21 * @param string $name
    22 */
    23 public function __construct(Processor $output, string $name)
    24 {
    25 $this->output = $output;
    26 $this->name = $name;
    27 }
    28
    29 public function run() : string
    

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19. 5
    6 class Executor
    7 {
    8 /**
    9 * @var Processor
    10 */
    11 private $output;
    12
    13 /**
    14 * @var string
    15 */
    16 private $name;
    17
    18 /**
    19 * Executor constructor.
    20 * @param Processor $output
    21 * @param string $name
    22 */
    23 public function __construct(Processor $output, string $name)
    24 {
    25 $this->output = $output;
    26 $this->name = $name;
    27 }
    28
    29 public function run() : string
    

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20. Binding Primitives
    https://laravel.com/docs/5.7/container
    

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21. 5 use App\Executor;
    6 use Illuminate\Support\ServiceProvider;
    7
    8 class AppServiceProvider extends ServiceProvider
    9 {
    10 /**
    11 * Bootstrap any application services.
    12 *
    13 * @return void
    14 */
    15 public function boot()
    16 {
    17 //
    18 }
    19
    20 /**
    21 * Register any application services.
    22 *
    23 * @return void
    24 */
    25 public function register()
    26 {
    27 $this->app->when(Executor::class)
    28 ->needs('$name')
    29 ->give(config('app.name'));
    30 }
    

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22. Interface
    

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23. 5
    6 use App\ExecutorInterface;
    7
    8 class Index extends Controller
    9 {
    10 /**
    11 * @var ExecutorInterface
    12 */
    13 private $executor;
    14
    15 /**
    16 * Index constructor.
    17 * @param ExecutorInterface $executor
    18 */
    19 public function __construct(ExecutorInterface $executor)
    20 {
    21 $this->executor = $executor;
    22 }
    23
    24 public function __invoke()
    25 {
    26 return view('index', [
    27 'message' => $this->executor->run()
    28 ]);
    29 }
    30
    

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25. 9 class AppServiceProvider extends ServiceProvider
    10 {
    11 /**
    12 * Bootstrap any application services.
    13 *
    14 * @return void
    15 */
    16 public function boot()
    17 {
    18 //
    19 }
    20
    21 /**
    22 * Register any application services.
    23 *
    24 * @return void
    25 */
    26 public function register()
    27 {
    28 $this->app->bind(ExecutorInterface::class, Executor::class);
    29 $this->app->when(Executor::class)
    30 ->needs('$name')
    31 ->give(config('app.name'));
    32 }
    33 }
    

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26. bind?
    

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27. ΦϒδΣΫτͷੜ੒खॱΛొ
    ࿥͢Δ
    

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28. make?
    

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29. ࣮ࡍʹΦϒδΣΫτΛੜ੒͢
    Δ
    

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30. ?>
    

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