Laravel document sorting 4. Controller

Preface ：Laravel Document sorting , Only for record , Nothing else .

1、 What the most basic controller looks like
<?php

namespace App\Http\Controllers;

use App\User;
use App\Http\Controllers\Controller;

class UserController extends Controller
{
    /**
     * Display the personal data of the specified user .
     *
     * @param  int  $id
     * @return Response
     */
    public function showProfile($id)
    {
        return view('user.profile', ['user' => User::findOrFail($id)]);
    }
}

Be careful ： All controllers should inherit from the underlying controller , Because the basic controller is related to the core of the framework , let me put it another way , Your controller does not inherit from the underlying controller , Your business logic won't work .

Define a route , Point to the method corresponding to this controller ：
Route::get('user/{id}', '[email protected]');

2、 When defining the route of the controller , Whether the full controller namespace needs to be specified ?
Unwanted
Such as App\Http\Controllers\Photos\AdminController
Just define Photos\AdminController This part is OK
example ：
Route::get('foo', 'Photos\[email protected]');

Ps: reason , By default ,RouteServiceProvider Will use routing groups , hold routes.php All routes in the file are configured to the namespace of the root controller

3、 How to name the route of the controller ？
Route::get('foo', ['uses' => '[email protected]', 'as' => 'name']);
Compare the basic ：
Route::get('foo', 'Photos\Admi[email protected]');

4、 With this route name , What's the use ？
such as , You have to pass the name , Know the route of the controller url, So at this point , The name of the controller route is used ：
$url = route('name');

5、 This is the only way to get the controller route url Do you ？
No
The following can also be ：
$url = action('[email protected]');

6、 How to get the behavior name of the controller in progress ?
$action = Route::currentRouteAction();

7、 How to specify middleware for routing
Route::get('profile', [
    'middleware' => 'auth',
    'uses' => '[email protected]'
]);

8、 How to specify middleware accurately ？
Specify... In the constructor .
example ：
class UserController extends Controller
{
    /**
     * Add one UserController example .
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth');

        $this->middleware('log', ['only' => ['fooAction', 'barAction']]);

        $this->middleware('subscribed', ['except' => ['fooAction', 'barAction']]);
    }
}
such , You can do it , In the current class , What methods , Which middleware to use , More flexible and simple , If you define in the route , Then you have to write every route .

9、 What is a resource controller ？
php artisan make:controller PhotosController
The above command , Can be generated quickly PhotosController Controller files ：
app/Http/Controllers/PhotosController.php
also , In this file , It also includes conventional methods such as addition, deletion, modification and query

Next , You can register resourced routes in the controller ：
Route::resource('photos', 'PhotosController');
This route declares , Multiple routes will be created .

The behavior handled by the resource controller ：

 

10、 When declaring a resource route , You can also specify the routing action
Route::resource('photos', 'PhotosController',
                ['only' => ['index', 'show']]);
or
Route::resource('photos', 'PhotosController',
                ['except' => ['create', 'store', 'update', 'destroy']]);

11、 How to route duplicate names to resources
Route::resource('photos', 'PhotosController',
                ['names' => ['create' => 'photo.build']]);
Ps: By default, resource controller behaviors have names , however , You can also pass a in the options names Array , Override name
Route::resource('photos', 'PhotosController',
                ['names' => ['create' => 'photo.build']]);

12、 What is nested resource ？
For example, multiple comments may be nested in Photo resources , In the code , How to achieve ？
Used in route declaration [ spot ]
Route::resource('photos.comments', 'PhotoCommentController');

This route will register a nested resource , visit url
photos/{photos}/comments/{comments}

<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;

class PhotoCommentController extends Controller
{
    /**
     * Show comments for the specified photo .
     *
     * @param  int  $photoId
     * @param  int  $commentId
     * @return Response
     */
    public function show($photoId, $commentId)
    {
        //
    }
}
See the parameters , All the way clear .

13、 How to attach a resource controller ？
This problem , In plain English , Resource controller , By default , Just a few ways , How do you give this class , Add a few more methods ？

Route::resource Before , Define the required route
Route::get('photos/popular', '[email protected]');

Route::resource('photos', 'PhotosController');

14、 What is an implicit controller ？
Route::controller('users', 'UserController');
class ：
<?php

namespace App\Http\Controllers;

class UserController extends Controller
{
    /**
     * Response GET /users Request
     */
    public function getIndex()
    {
        //
    }

    /**
     * Response GET /users/show/1 Request
     */
    public function getShow($id)
    {
        //
    }

    /**
     * Response GET /users/admin-profile Request
     */
    public function getAdminProfile()
    {
        //
    }

    /**
     * Response POST /users/profile Request
     */
    public function postProfile()
    {
        //
    }
}
The above example ,index Method , Respond to the root processed by the controller URI, In this case, yes users

15、 How to name some routes in the controller ？
stay Route::controller() In the method , Pass in an array , As the third parameter
Route::controller('users', 'UserController', [
    'getShow' => 'user.show',
]);

16、 Constructor dependency injection
example ：
<?php

namespace App\Http\Controllers;

use Illuminate\Routing\Controller;
use App\Repositories\UserRepository;

class UserController extends Controller
{
    /**
     * user Repository example .
     */
    protected $users;

    /**
     * Create a new controller instance .
     *
     * @param  UserRepository  $users
     * @return void
     */
    public function __construct(UserRepository $users)
    {
        $this->users = $users;
    }
}

17、 Methods to inject
Route::put('user/{id}', '[email protected]');

You want to extract from the controller method , Get route parameters , Then only after the dependency , Just list the routing parameters .
<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Routing\Controller;

class UserController extends Controller
{
    /**
     * Update the specified user .
     *
     * @param  Request  $request
     * @param  int  $id
     * @return Response
     */
    public function update(Request $request, $id)
    {
        //
    }
}