如何在Laravel 5.4.18中使用特征? [英] How to use traits in Laravel 5.4.18?

问题描述

我需要一个示例，该示例确切说明在何处创建文件，如何写入文件以及如何使用特征中声明的函数. 我使用Laravel Framework 5.4.18

-我尚未更改框架中的任何文件夹，所有内容均与之相对应-

非常感谢您.

解决方案

我已经在我的Http目录中创建了一个Traits目录，并具有一个名为BrandsTrait.php

的Trait.

并像这样使用它:

use App\Http\Traits\BrandsTrait;

class YourController extends Controller {

    use BrandsTrait;

    public function addProduct() {

        //$brands = Brand::all();

        // $brands = $this->BrandsTrait();  // this is wrong
        $brands = $this->brandsAll();
    }
}

这是我的BrandsTrait.php

<?php
namespace App\Http\Traits;

use App\Brand;

trait BrandsTrait {
    public function brandsAll() {
        // Get all the brands from the Brands Table.
        $brands = Brand::all();

        return $brands;
    }
}

注意:就像在某些namespace中编写的普通函数一样，您也可以使用traits

I need an example of where to exactly create the file, to write to it, and how to use the functions declared in the trait. I use Laravel Framework 5.4.18

-I have not altered any folder in the framework, everything is where it corresponds-

From already thank you very much.

解决方案

I have Create a Traits directory in my Http directory with a Trait called BrandsTrait.php

and use it like:

use App\Http\Traits\BrandsTrait;

class YourController extends Controller {

    use BrandsTrait;

    public function addProduct() {

        //$brands = Brand::all();

        // $brands = $this->BrandsTrait();  // this is wrong
        $brands = $this->brandsAll();
    }
}

Here is my BrandsTrait.php

<?php
namespace App\Http\Traits;

use App\Brand;

trait BrandsTrait {
    public function brandsAll() {
        // Get all the brands from the Brands Table.
        $brands = Brand::all();

        return $brands;
    }
}

Note: Just like a normal function written in a certain namespace, you can use traits as well

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