在 Laravel 5.5 中验证之前更改 $request 的值
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change value of $request before validation in laravel 5.5
提问by Maria
I have a form in route('users.create').
我在route('users.create').
I send form data to this function in its contoller:
我在其控制器中将表单数据发送到此函数：
public function store(UserRequest $request)
{
return redirect(route('users.create'));
}
for validation I create a class in
为了验证，我创建了一个类
App\Http\Requests\Panel\Users\UserRequest;
App\Http\Requests\Panel\Users\UserRequest;
class UserRequest extends FormRequest
{
public function rules()
{
if($this->method() == 'POST') {
return [
'first_name' => 'required|max:250',
It works.
有用。
But How can I change first_namevalue before validation (and before save in DB)?
但是如何first_name在验证之前（以及保存在数据库中之前）更改值？
(Also with failed validation, I want to see new data in old('first_name')
（同样验证失败，我想在 old('first_name')
Update
更新
I try this:
我试试这个：
public function rules()
{
$input = $this->all();
$input['first_name'] = 'Mr '.$request->first_name;
$this->replace($input);
if($this->method() == 'POST') {
It works before if($this->method() == 'POST') {But It has not effect for validation or for old()function
以前可以用if($this->method() == 'POST') {但是对验证或old()功能没有影响
回答by numbnut
Override the prepareForValidation()method of the FormRequest.
覆盖 的prepareForValidation()方法FormRequest。
So in App\Http\Requests\Panel\Users\UserRequest:
所以在App\Http\Requests\Panel\Users\UserRequest：
protected function prepareForValidation()
{
if ($this->has('first_name'))
$this->merge(['first_name'=>'Mr '.$this->first_name]);
}
回答by Webdesigner
Why not doing the validation in the controller? Than you can change things before you validate it and doing your db stuff afterward.
为什么不在控制器中进行验证？比您可以在验证之前更改内容并在之后进行数据库操作。
public function store(Request $request)
{
$request->first_name = 'Mr '.$request->first_name;
Validator::make($request->all(), [
'first_name' => 'required|max:250',
])->validate();
// ToDo save to DB
return redirect(route('users.create'));
}
