如何根据另一个表单字段的数据验证表单字段？ - Laravel 6

Question

我有一个包含以下字段的表单：

n_census（提供有关城镇或城市总人口的信息）
n_participants（根据n_census提供有关选举过程中参与者人数的信息）

我想根据 n_census 验证 n_participants，因为 n_participants 不可能比 n_census 多。

我用来验证这两个字段（以及我拥有但与此问题无关的其他字段）的代码是：

protected function validator(array $data)
{
    $customMessages = [
        'required' => ':attribute es obligatori',
        'min' => ':attribute cal que siga, com a mínim, :min caracters',
        'max' => ':attribute cal que siga, com a màxim, :max caracters',
        'string' => ':attribute cal que siga una cadena de caracters',
        'int' => ':attribute cal que siga un enter',
        'email' => ':attribute es un email',
        'confirmed' => 'No has confirmat el correu electrònic'
    ];

    return Validator::make($data, [
        'name' => ['required', 'string', 'max:255'],
        'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
        'password' => ['required', 'string', 'min:8', 'confirmed'],
        'dni' => ['required', 'string', 'min:9', 'max:9'],
        'surname1' => ['required', 'string', 'max:50'],
        'surname2' => ['required', 'string', 'max:50'],
        'v1' => ['required', 'string', 'max: 100'],
        'v2' => ['required', 'string', 'max: 100'],
        'district' => ['required', 'int'],
        'section' => ['required', 'int'],
        'chair' => ['required', 'string'],
        'municipality' => ['required'],
        'province' => ['required'],
        'n_census' => ['required', 'int'],
        'n_participants' => ['required', 'int', 'max: 50']
    ], $customMessages);
}

是否可以使用 Validator::make() 来做到这一点？

Answer 1

使用这个

return Validator::make($data, [
            'name' => ['required', 'string', 'max:255'],
            'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
            'password' => ['required', 'string', 'min:8', 'confirmed'],
            'dni' => ['required', 'string', 'min:9', 'max:9'],
            'surname1' => ['required', 'string', 'max:50'],
            'surname2' => ['required', 'string', 'max:50'],
            'v1' => ['required', 'string', 'max: 100'],
            'v2' => ['required', 'string', 'max: 100'],
            'district' => ['required', 'int'],
            'section' => ['required', 'int'],
            'chair' => ['required', 'string'],
            'municipality' =>  ['required'],
            'province' =>  ['required'],
            'n_participants' => ['required', 'int', 'max: 50'],
            'n_census' => ['required', 'int','gte:n_participants'],
        ], $customMessages);

在条件中添加了 gte:n_participants https://laravel.com/docs/6.x/validation#rule-gt

如何根据另一个表单字段的数据验证表单字段？ - Laravel 6

How to validate a form field based on the data from another one? - Laravel 6

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