Laravel 保存多部分表单

Question

我有一个由 3 部分组成的表单，我希望能够在每次提交后更新数据库。有一个表格包含以下所有字段。

form1 asks for first and last name
form2 asks for email and phone
form3 asks for city and state

在我的控制器中，我有 3 个单独的函数来保存表单的每个步骤：

public function name(Request $request){
    $lead = Lead::firstOrNew(123);
    $lead->firstName = $request->get('firstName ');
    $lead->lastName = $request->get('lastName');
    $lead->save();
    return redirect('/form2');
}

public function info(Request $request){
    $lead = Lead::find(123);
    $lead->email = $request->get('email');
    $lead->phone = $request->get('phone');
    $lead->save();
    return redirect('/form3');
}

public function address(Request $request){
    $lead = Lead::find(123);
    $lead->city = $request->get('city');
    $lead->state = $request->get('state');
    $lead->save();
    return redirect('/done');
}

有没有办法将它与一个更新功能结合起来？

Answer 1

你可以重构方法来调用一个通用的“更新”函数。请参阅下面的示例代码。

public function name(Request $request){
    $this->update(123, $request);
    return redirect('/form2');
}

public function info(Request $request){
    $this->update(123, $request);
    return redirect('/form3');
}

public function address(Request $request){
    $this->update(123, $request);
    return redirect('/done');
}

private function update($id, $request) {
    $lead = Lead::find($id);
    foreach ($field as ['firstName', 'lastName', ...]) {
        if ($request->has($field)) {
            $lead->{$field} = $request->get($field);
        }
    }
    $lead->save();
}

Answer 2

只需进行条件检查，更新模型并定义重定向 url：

public function info(Request $request) {
    $lead = Lead::firstOrNew(123);

    if ($request->has('firstName') && $request->has('lastName')) {
        $lead->firstName = $request->get('firstName ');
        $lead->lastName = $request->get('lastName');
        $redirect = '/form2';
    } else if ($request->has('email') && $request->has('phone')) {
        $lead->email = $request->get('email');
        $lead->phone = $request->get('lastName');
        $redirect = '/form3';
    } else if ($request->has('city') && $request->has('state')) {
        $lead->city = $request->get('city');
        $lead->state = $request->get('state');
        $redirect = '/done';
    }

    $lead->save();

    return redirect($redirect);
}

另外，您可以通过update 进行组更新，只需确保将模型中的属性列入白名单

public function info(Request $request) {
    $lead = Lead::firstOrNew(123);
    $lead->update($request->all());

    if ($request->has('firstName') && $request->has('lastName')) {
        $redirect = '/form2';
    } else if ($request->has('email') && $request->has('phone')) {
        $redirect = '/form3';
    } else if ($request->has('city') && $request->has('state')) {
        $redirect = '/done';
    }

    return redirect($redirect);
}

或者我最好在表单中添加一个重定向变量，例如：

<input type="hidden" name="redirect" value="form1">

并简化您的控制器方法，例如：

public function info(Request $request) {
    $lead = Lead::firstOrNew(123);
    $lead->update($request->all());

    return redirect($request->input('redirect'));
}

Answer 3

您可以为所有三个表单添加一个隐藏字段（但使用名称名称，例如form_name），并设置它们的值以识别表单（form1，form2，form3），当它是提交。然后在您的控制器中，检查请求中form_name 字段的值以确定您要重定向到的位置，如下所示：

public function info(Request $request) {
    $lead = Lead::firstOrNew(123);
    $lead->update($request->all());

    //this will be from the hidden field (form_name)
    $form_type = $request->get('form_name');

    if ($form_type == 'form1') {
        $redirect = '/form2';
    } else if ($form_type == 'form2') {
        $redirect = '/form3';
    } else if ($form_type == 'form3') {
        $redirect = '/done';
    }

    return redirect($redirect);
}

Answer 4

如果您有使用 javaScript 的选项，则将第一个和第二个表单数据保存在 cookie 或本地存储中，当用户到达表单的最后一部分时，然后从 cookie 或本地存储中取出数据，然后添加最后一个表单，但将它们保留在隐藏的输入中。

Answer 5

鉴于 HTTP 请求是无状态的（这意味着每个请求对它之前和之后的请求一无所知），我宁愿您使用会话，这样您就可以像 redirect 一样从一个 @ 存储信息987654322@ 给另一个。在这种情况下，您的代码应如下所示：

<?php

public function name(Request $request){
    Session::put('nameData', $request->all());   //Store the info from form1 in session and redirect to form2
    return redirect('/form2');
}

public function info(Request $request){
    $validSessionData = Session::has('nameData');

    if (!$validSessionData) {    //Check if the user filled form1, if not, go back to form1
        return redirect('/form1');
    }

    $nameAndInfo = Session::pull('nameData', []) + $request->all();  //Merge the info from form1 with info from form2. You could decide to keep them separate and merge later.

    Session::put('nameAndInfo', $nameAndInfo);
    return redirect('/form3');
}

public function address(Request $request){
    $validSessionData = Session::has('nameAndInfo');

    if (!$validSessionData) {   Another check. You could also extend this by checking for form2 session data
        return redirect('/form1');
    }

    $allData = Session::pull('nameAndInfo', []) + $request->all();  //Merge all session data
    $lead = Lead::firstOrNew(123);
    $lead->firstName = $allData['firstName'];
    $lead->lastName = $allData['lastName'];
    $lead->email = $allData['email'];
    $lead->phone = $allData['phone'];
    $lead->city = $allData['city'];
    $lead->state = $allData['state'];

    $lead->save();
    return redirect('/done');
}