test/app/Http/Requests/Sell/AgentUserSaveRequest.php

<?php

namespace App\Http\Requests\Sell;

use App\Http\Requests\Request;
use Illuminate\Database\Query\Builder;
use Illuminate\Validation\Rule;

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

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        if (!$this->ajax()) {
            return [];
        }

        $userId = $this->route('id');

        if ($userId) {
            $password = 'min:5|max:15';
        } else {
            $password = 'nullable|min:5|max:15';
        }
        $rule = [
            'nickname' => 'required',
            'username' => [
                'required',
                'min:3',
                'max:15',
                Rule::unique('users')->where(function (Builder $query) {
                    return $query->where('deleted_at', null);
                })->ignore($userId)
            ],
            'password' => $password,
            'phone' => [
                'required',
                Rule::unique('users')->where(function (Builder $query) {
                    return $query->where('deleted_at', null);
                })->ignore($userId)
            ],
            'telephone' => 'nullable',
            'email' => 'nullable|email',
            'role_id' => 'required|numeric',
            'agent_id' => 'required'
        ];
        return $rule;
    }


    public function attributes()
    {
        return [
            'nickname' => '昵称',
            'username' => '用户名',
            'password' => '密码',
            'phone' => "手机号",
            'role_id' => '角色',
            'agent_id' => '代理商'
        ];
    }
}