标签: laravel-7

我在本地服务器上安装了 laravel 7。当我运行php artisan route:cache命令时，laravel 返回错误：

逻辑异常

无法为序列化准备路由 [api/user]。使用闭包。

我该如何解决这个问题？

我尝试通过运行工匠命令：

php artisan config:cache
php artisan config:clear
php artisan cache:clear
composer dumpautoload

这是内容routes/api.php：

<?php

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| is assigned the "api" middleware group. Enjoy building your API!
|
*/

Route::middleware('auth:api')->get('/user', function (Request $request) …

我在尝试使用观察者时遇到一个问题，它不会仅在更新的情况下触发观察者。在其他情况下它工作得很好！

我对此进行了一些研究，找到了一些解决方案，例如直接从模型调用更新方法，而不是在存储库中，但不幸的是，它对我不起作用。我找到的解决方案：https://github.com/laravel/framework/issues/11777#issuecomment-170388067

class UserObserver
{
    /**
     * Handle the user "created" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function created(User $user)
    {
        dd($user);
    }

    /**
     * Handle the user "updated" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function updated(User $user)
    {
        dd($user);
    }

    /**
     * Handle the user "deleted" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function deleted(User $user)
    {
        dd($user);
    }
}

这是我的AppServiceProvider： …

我在尝试全局安装 Laravel 时出错。

当我写composer global require laravel/installer 我得到这个错误：

Problem 1
    - Installation request for laravel/installer ^3.1 -> satisfiable by laravel/installer[v3.1.0].
    - Conclusion: remove symfony/console v3.4.38
    - Conclusion: don't install symfony/console v3.4.38
    - laravel/installer v3.1.0 requires symfony/console ^4.0|^5.0 -> satisfiable by symfony/console[v4.0.0, v4.0.1, v4.0.10, v4.0.11, v4.0.12, v4.0.13, v4.0.14, v4.0.15, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.0.6, v4.0.7, v4.0.8, v4.0.9, v4.1.0, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.2, v4.1.3, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0, v4.2.1, v4.2.10, v4.2.11, v4.2.12, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, …

我正在使用 Laravel 并且我有功能迁移：

public function up()
    {
        Schema::create('products', function (Blueprint $table) {
            $table->increments('id');
            $table->string('title')->unique();
            $table->string('slug')->unique();
            $table->string('subtitle');
            $table->integer('price');
            $table->text('description');
            $table->boolean('featured')->default(false);
            $table->timestamps();
 
        });
    }            

当我在我的 cmd 上执行“php artisan migrate”时出现错误

Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table

   Illuminate\Database\QueryException

  SQLSTATE[42000]: Syntax error or access violation: 1071 La clé est trop longue. Longueur maximale: 1000 (SQL: alter table `users` add unique `users_username_unique`(`username`))

  at C:\Users\linda\lynda-master\vendor\laravel\framework\src\Illuminate\Database\Connection.php:671
    667|         // If an exception occurs when attempting to run a query, we'll format the error
    668|         // message to include the …