Laravel 控制器及表单验证

Laravel 提供了多种不同的方法来验证传入应用程序的数据。

1. 在控制器中编写验证器逻辑；
2. 使用 validate 手动创建验证器；
3. 使用验证层创建表单请求验证（推荐）；

<?php
namespace App\Http\Requests\Api;

use Illuminate\Foundation\Http\FormRequest;

class StorePositionRequest extends FormRequest
{

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return false;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'title' => 'required|max:255',
            'body' => 'required'
        ];
    }

    /**
     * Get custom messages for validator errors.
     *
     * @return array
     */
    public function messages()
    {
        return [
            'title.required' => 'A title is required',
            'title.max' => 'The title may not be greater than 255',
            'body.required' => 'A message is required'
        ];
    }
}