php - 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'))),
],

但是现在我收到这个错误:

Fatal error: Uncaught exception 'ReflectionException' with message 'Class log does not exist' in /Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/Container/Container.php:734 Stack trace: #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 in /Applications/AMPPS/www/loan/vendor/laravel/framework/src/Illuminate/Container/Container.php on line 734

我该如何解决这个问题？因为我尝试的一切都不起作用。提前致谢!

Answer 1

您需要将此逻辑移至您的 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。

那么我们要做的是

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() 函数中，我们可以重载我们的 View 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);
    });
}

走这条路线将确保您的路径首先被观察到。如果在该路径中找不到 View ，那么您可以回退到 Laravel 的默认 View 路径。

编辑

请务必注意，您的类需要扩展默认的 ViewServiceProvider，并且您还必须声明 2 个其他函数，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);
        });
    }
}