Laravel5 basic tutorial | 3. Controller: task distributor

Laravel5 basic tutorial | 3. Controller: basic tutorial for task distributor Laravel 5 | 3. Controller: task distributor-serious table

Tutorial Directory

• 1. installation and deployment-serious table
• 2. routing: the connection between the link and the controller-table seriousness
• 3. Controller: submitter of the task-serious table

The controller is a small matchmaker.

Sometimes we find that it takes not long for the route to directly write the logic into the route, and the routing will become larger.

Route::get('/', function(){    ...    ...    ... // （?' ')????})

What should we do at this time?

Controller!

It generally works like this:

Notification Model: Prepare Data for me.

Notification View: you have prepared a template for me.

Return the rendered template to the browser.

Finished.

For example, the Hello part of the previous lesson can be implemented using Controller.

Route::get('hello', 'HelloController@sayHello');

Suddenly there are many simple and elegant things.
The first parameter is still the address parameter, and the second parameter is a string. @ specifies the controller, and the later part specifies the method used by the controller.

Create a Controller

You can use the following command to create a controller for both windows and unix:

Cd my/laravel root directory php artisan make: controller HelloController

If the returned result is similar to... controller created successfully..., the controller is created successfully. in this case, check/app/Http/Controllers and you will find that this directory has an additional file HelloController.

Of course, you can create a Controller manually, but generally you can use commands to meet your needs.

The content of HelloController is as follows:

...class HelloController extends Controller{    public function index()    {        }        ...}

All methods can be deleted. these methods are created by artisan for us (but I never seem to appreciate them ):

...class HelloController extends Controller{}

Create a method sayHello:

...class HelloController extends Controller{    public function sayHello($name)    {        return 'Hello' . $name . '.';    }}

The routing rule should be:

Route::get('hello/{name}', 'HelloController@sayHello');

Parameter passing in the address bar: localhost: 8888/hello/LiMing

Some people ask, if you want to make the name an option, that is, if you have a name, output "Hello + name. ", but if there is no name, output" Hello there. "Do you want to add?
This can be done in Laravel:

// Route file Route: get ('Hello'/{name ?} ', 'Hellocontroller @ sayhel'); // controller... public function sayHello ($ name = null) {if (! $ Name) return 'Hello there. '; else return 'hello'. $ name ;}...

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Tutorial Directory

• 1. installation and deployment-serious table
• 2. routing: the connection between the link and the controller-table seriousness
• 3. Controller: submitter of the task-serious table