Laravel表单中实现“返回”按钮跳过验证的策略

<form method="POST" action="{{route("movies.store")}}" class="mt-5 w-50 m-auto">
    @csrf
    <!-- 表单字段略 -->
    <button type="submit" name="action" value="back" class="btn btn-warning me-3">Back</button>
    <button type="submit" name="action" value="add" class="btn btn-primary">Add</button>
</form>

public function store(MoviesFormRequest $request)
{
    switch ($request->input('action')) {
        case 'back':
            return redirect()->route("movies.index"); // 问题：此时MoviesFormRequest已经运行验证

        case 'add':
            $data = $request->validated();
            Movie::create($data);
            return redirect()->route("movies.index");
    }
}

<form method="POST" action="{{route("movies.store")}}" class="mt-5 w-50 m-auto">
    @csrf
    <div class="mb-3">
        <label class="form-label">Movie Name</label>
        <input type="text" name="movie_name" class="form-control">
        @error('movie_name')
        <span class="error">{{$message}}</span>
        @enderror
    </div>
    <div class="mb-3">
        <label class="form-label">Movie Description</label>
        <input type="text" name="movie_description" class="form-control">
        @error('movie_description')
        <span class="error">{{$message}}</span>
        @enderror
    </div>
    <div class="mb-3">
        <label class="form-label">Movie Genre</label>
        <input type="text" name="movie_gener" class="form-control">
        @error('movie_gener')
        <span class="error">{{$message}}</span>
        @enderror
    </div>
    <!-- 将“Back”按钮改为超链接 -->
    <a href="https://www.php.cn/link/b9b42240909f825c24ca520d8d28255e'movies.index') }}" class="btn btn-warning me-3">Back</a>
    <!-- “Add”按钮保持为提交按钮 -->
    <button type="submit" name="action" value="add" class="btn btn-primary">Add</button>
</form>

<?php

namespace App\Http\Controllers;

use App\Http\Requests\MoviesFormRequest;
use App\Models\Movie;
use Illuminate\Http\Request;

class MovieController extends Controller
{
    /**
     * 处理电影存储请求。
     *
     * @param  \App\Http\Requests\MoviesFormRequest  $request
     * @return \Illuminate\Http\RedirectResponse
     */
    public function store(MoviesFormRequest $request)
    {
        // 只有当用户点击“Add”按钮（即表单被提交）时，才会执行到这里
        // 并且MoviesFormRequest已经自动处理了验证
        $data = $request->validated(); // 获取已验证的数据

        Movie::create($data); // 创建新电影记录

        return redirect()->route("movies.index")->with('success', '电影添加成功！');
    }

    // ... 其他控制器方法
}

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class MoviesFormRequest extends FormRequest
{
    /**
     * 确定用户是否有权发出此请求。
     *
     * @return bool
     */
    public function authorize()
    {
        // 根据业务逻辑判断用户是否有权限提交此表单
        // 例如：return auth()->check();
        return true;
    }

    /**
     * 获取适用于请求的验证规则。
     *
     * @return array
     */
    public function rules()
    {
        return [
            'movie_name' => 'required|string|max:255',
            'movie_description' => 'required|string',
            'movie_gener' => 'required|string|max:100',
        ];
    }

    /**
     * 获取自定义的验证消息。
     *
     * @return array
     */
    public function messages()
    {
        return [
            'movie_name.required' => '电影名称是必填项。',
            'movie_description.required' => '电影描述是必填项。',
            'movie_gener.required' => '电影类型是必填项。',
            // ... 其他自定义消息
        ];
    }
}