A must-read for Laravel developers: Master the calling skills of controller methods

In Laravel development, calling controller methods is one of the problems that developers often face. Mastering the calling skills of controller methods can make development work more efficient and smoother. This article will cover basic knowledge to advanced techniques, combined with specific code examples to help developers better understand and master the invocation of controller methods.

1. Basic invocation of controller methods

In Laravel, the controller is an important part of the application, responsible for processing routing requests and returning corresponding responses. Methods in the controller can be called through routing. The sample code is as follows:

Route::get('/users', 'UserController@index');

In the above code, when accessing the '/users' route, UserController of the controller will be called. indexmethod. Controller methods are typically used to obtain data from the database, perform operations such as business logic, and return the results to the view.

Route::get('/users/{id}', 'UserController@show');

id, which can be passed in the show method of UserController The value is received and processed accordingly.

class UserController extends Controller {
    public function index() {
        $users = $this->getUserList();
        return view('users.index', ['users' => $users]);
    }

    public function getUserList() {
        return User::all();
    }
}

index method of UserController calls the getUserList method to obtain the user list and pass it to the view exhibit.

class UserController extends Controller {
    protected $userService;

    public function __construct(UserService $userService) {
        $this->userService = $userService;
    }

    public function index() {
        $users = $this->userService->getUserList();
        return view('users.index', ['users' => $users]);
    }
}

UserController can obtain the UserService instance and call its method to obtain the user list.

class UserController extends Controller {
    public function delete(User $user) {
        $this->authorize('delete', $user);
        $user->delete();
        return redirect()->route('users.index');
    }
}

authorize method. Only users with deletion permissions can perform deletion operations.

The above is the detailed content of A must-read for Laravel developers: Master the calling skills of controller methods. For more information, please follow other related articles on the PHP Chinese website!