laravel学习笔记(三)

• 模型传值

路由：

Route::get('/posts/{post}','\App\Http\Controllers\PostController@show');

方法：

public function show(Post $post){
    $isShowEdit = false;
    return view("post/show",compact,'isShowEdit','post'));
}

• CSRF保护

laravel之伪造跨站请求保护CSRF实现机制：https://www.cnblogs.com/wanghaokun/p/10011668.html

Laravel 下的伪造跨站请求保护

{{csrf_field()}}
<input type='hidden' name='_token' value='{{csrf_token}}' />

X-CSRF-TOKEN

<meta name="csrf-token" content="{{ csrf_token() }}">

$.ajaxSetup({
    headers: {
        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
    }
});

• 调试方法

dd：dump and die

dd(\Request::all())
dd(request());
dd(request('key'));

• 数据库字段保护

protected $guarded=[];                         //不可以注入的数据字段
protected $fillable=['title','content'];    　　//可以注入的数据字段

• 保存model

//        $post = new Post();
//        $post->title = request('title');
//        $post->content = request('content');
//        $b = $post->save(); //true

//        $params = ['title'=>request('title'),'content'=>request('content')];
//        Post::create($params);
        Post::create(request(['title','content']));
//        dd(request()->all());
        return(redirect('/posts'));

• 验证错误提示

参考地址：Http层-表单验证　　https://laravel-china.org/docs/laravel/5.4/validation/1234

eg:

$this->validate(request(),[
    'title'     => 'required|string|max:100|min:5',
    'content'   => 'required|string|min:10'
]);

验证提示汉化

resources\lang 下en 的文件夹 复制在同一目录并改名为 zn

把zn 中的 validation.php文件修改为对应汉化，https://laravel-china.org/articles/5840/validation-validation-in-laravel-returns-chinese-prompt

修改config 目录下的app.php 文件，locale' => 'en' 改为 locale' => 'en'

• 图片上传

修改图片上传软链目录 config/filesystems.php 'default' => env('FILESYSTEM_DRIVER', 'public')

storage:link Create a symbolic link from "public/storage" to "storage/app/public"

php artisan storage:link