Laravel view.php 在 base_path 中使用 config::get 变量

Question

我正在尝试在 laravel 5.2 view.php 中执行此操作（编辑 base_path 以在字符串中使用配置变量）：

<?php

use Illuminate\Support\Facades\Config;
use Illuminate\Support\Facades\Request;

return [

/*
|--------------------------------------------------------------------------
| View Storage Paths
|--------------------------------------------------------------------------
|
| Most templating systems load templates from disk. Here you may specify
| an array of paths that should be checked for your views. Of course
| the usual Laravel view path has already been registered for you.
|
*/

'paths' => [
    realpath(base_path('resources/views/layouts/' . Config::get('api.' . Request::get('domain') . '.layout'))),
],

但现在我收到此错误：

致命错误：/Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/Container/Container.php:734 中未捕获的异常“ReflectionException”和消息“类日志不存在” 堆栈跟踪： #0 /Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/Container/Container.php(734): ReflectionClass->__construct('log') #1 /Applications/AMPPS/www/loan/ vendor/laravel/framework/src/Illuminate/Container/Container.php(629): Illuminate\Container\Container->build('log', Array) #2 /Applications/AMPPS/www/loan/vendor/laravel/framework /src/Illuminate/Foundation/Application.php(697): Illuminate\Container\Container->make('log', Array) #3 /Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/ Container/Container.php(849): Illuminate\Foundation\Application->make('Psr\Log\LoggerI...') #4 /Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/ Container/Container.php(804): Illuminate\Container\Container->resolveClass(Object(ReflectionParameter)) #5 /Applications/AMPPS/www/loan/vendor/l 在 /Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/Container/Container.php 734 行

我该如何解决这个问题？因为我尝试的一切都不起作用。 提前谢谢！

Answer 1

您需要将此逻辑移出到您的ViewServiceProvider，而不是尝试直接在配置文件中执行此操作，这是一个很大的禁忌。

所以我们要做的是

php artisan make:provider MyViewServiceProvider

这将导致文件存在于：

App\Providers\MyViewServiceProvider

现在我们要打开config/app.php。在此文件中找到现有的ViewServiceProvider::class，并将其替换为上面的命名空间路径。它应该看起来像这样：

//the old Illuminate\View\ViewServiceProvider::class
App\Providers\MyViewServiceProvider::class,

现在在registerViewFinder() 函数内部，我们可以重载视图路径。

<?php

namespace App\Providers;

use Illuminate\Support\Facades\Config;

public function registerViewFinder()
{
    $this->app->bind('view.finder', function ($app) {
        $custom_path = base_path('resources/views/layouts/' . Config::get('api.' . $this->app->request()->get('domain') . '.layout')
        $paths = array_merge(
            [$custom_path],
            $app['config']['view.paths']
        );

        return new FileViewFinder($app['files'], $paths);
    });
}

走这条路将确保首先观察到您的路径。如果在该路径中找不到视图，则可以回退到 Laravel 的默认视图路径。

编辑

请务必注意，您的类需要扩展默认的 ViewServiceProvider，并且您必须声明其他 2 个函数，整个文件应如下所示：

<?php

namespace App\Providers;

use Illuminate\View\ViewServiceProvider;
use Illuminate\Support\Facades\Config;

class MyViewServiceProvider extends ViewServiceProvider
{
    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        parent::boot();
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        parent::register();
    }

    /**
     * Register the view finder implementation.
     *
     * @return void
     */
    public function registerViewFinder()
    {
        $this->app->bind('view.finder', function ($app) {
            $custom_path = base_path('resources/views/layouts/' . Config::get('api.' . $this->app->request->get('domain') . '.layout')
            $paths = array_merge(
                [$custom_path],
                $app['config']['view.paths']
            );

            return new FileViewFinder($app['files'], $paths);
        });
    }
}

Answer 2

您可以在应用的配置文件中使用 config- 和 request-helpers。

'paths' => [
    realpath(base_path(
        'resources/views/layouts/' . config('api.' . request('domain') . '.layout')
    )),
],

Answer 3

简短的回答：是的。将此添加到文件顶部：

use Illuminate\Support\Facades\Config;