laravel 5.4向basecontroller数组添加新元素

Question

i have a question about dynamic breadcrumbs in laravel 5.4 . 我对laravel 5.4中的动态面包屑有疑问。 i don't want use package for this so my question is that: 我不想为此使用包，所以我的问题是：

i write a basecontroller like this 我写这样的基本控制器

<?php

namespace App\Http\Controllers\Admin;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

class BaseController extends Controller
{
    private $breadcrumbs;

    function __construct()
    {
        $this->breadcrumbs[] = [
            'title' => 'Home',
            'type' => 'route',
            'href' => 'admin.dashboard'
        ];

        view()->share('breadcrumbs', $this->breadcrumbs);
    }
}

and i use it in child controller like this 我在像这样的子控制器中使用它

<?php

namespace App\Http\Controllers\Admin\Management;

use Illuminate\Http\Request;
use App\Http\Controllers\Admin\BaseController;

class PackageController extends BaseController
{
    function __construct()
    {
        parent::__construct();
    }

    public function getList()
    {
        $this->breadcrumbs[] = [
            'title' => 'Packages',
            'type' => 'route',
            'href' => 'admin.package.list',
            'class' => 'active'
        ];

        return view('admin.layouts.package.list');
    }

i want use this breadcrumbs variable in breadcrumbs.blade.php partial in master page 我想在主页面中的Breadcrumbs.blade.php部分中使用此面包屑变量

<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
    @include('admin.layouts.shared.breadcrumb')
</body>
</html>

breadcrumbs partial view renders an ul list has multiple li>a tags. 面包屑局部视图呈现一个具有多个li> a标签的ul列表。 but this is not working now. 但这现在不起作用。

1 . 1。 why it doesn't work ? 为什么它不起作用？

2 . 2。 how can add a new breadcrumb array element to breadcrumb variable in basecontroller and render full parts with added last element ? 如何在basecontroller中的面包屑变量中添加新的面包屑数组元素并使用添加的last元素呈现完整部分？

please help me ? 请帮我？

( sorry my bad english ) （对不起，我英语不好）

Answer 1

The parent constructor runs before the getList() function. 父构造函数在 getList()函数之前运行。 This means that the following has already run: 这意味着以下内容已经运行：

view()->share('breadcrumbs', $this->breadcrumbs);

I'm pretty sure it makes a copy of the breadcrumbs array when you share it, not leaving a reference to it so you can modify it as you go. 我很确定，当您共享它时，它会复制面包屑数组，而不会留下对其的引用，因此您可以随时进行修改。

Why not make a method in the base controller like: 为什么不在基本控制器中创建如下方法：

public function setBreadcrumbs($breadcrumbs)
{
    $this->breadcrumbs = $breadcrumbs;
    view()->share('breadcrumbs', $this->breadcrumbs);
}

And then in getList() call it like this: 然后在getList()调用它：

$this->setBreadcrumbs([
    'title' => 'Packages',
    'type' => 'route',
    'href' => 'admin.package.list',
    'class' => 'active'
]);

laravel 5.4向basecontroller数组添加新元素

问题描述

1 个解决方案

解决方案1
1 2017-05-11 19:40:29

laravel 5.4向basecontroller数组添加新元素

问题描述

1 个解决方案

解决方案1 1 2017-05-11 19:40:29

解决方案1
1 2017-05-11 19:40:29