How to use 2 attributes in Validation Rule Class Laravel - laravel

Question

How can I use two attributes in the Validation Rule of Laravel. This is my function where I have 2 variables groupid and grouppassword. Currently only groupid is taken.
public function groupPasswordValidationReal(Request $request){
$groupid = $request->input('groupid');
$grouppassword = $request->input('grouppassword');
$validator = \Validator::make($request->all(), [
'groupid' => [new ValidRequest] //How to pass grouppassword in this function???
]);
return redirect('home')->with('success', 'Request is send!');
}
How can I pass both to my Validation Class? Here you can see the functions in the Validation Class.
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use App\Group;
class ValidTest implements Rule
{
public function passes($attribute, $value)
{
//$value is groupid
$validPassword = Group::where([['idgroups', $value],['group_password', /*Here I need grouppassword*/]])->first();
if($validPassword){
return true;
}else{
return false;
}
}
public function message()
{
return 'Wrong Password!';
}
}

Answer 1

Add property and constructor to your ValidTest class. Pass the required value as an argument to the new object.
ValidTest.php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use App\Group;
class ValidTest implements Rule
{
/**
* The group password.
*
* #var string
*/
public $groupPassword;
/**
* Create a new rule instance.
*
* #param \App\Source $source
* #param string $branch
* #return void
*/
public function __construct($groupPassword)
{
$this->groupPassword = $groupPassword;
}
public function passes($attribute, $value)
{
//$value is groupid
//$this->groupPassword is group_password
$validPassword = Group::where([['idgroups', $value],['group_password', $this->groupPassword]])->first();
if($validPassword){
return true;
}else{
return false;
}
}
public function message()
{
return 'Wrong Password!';
}
}
Controller
public function groupPasswordValidationReal(Request $request){
$groupid = $request->input('groupid');
$grouppassword = $request->input('grouppassword');
$validator = \Validator::make($request->all(), [
'groupid' => new ValidTest($grouppassword)
]);
return redirect('home')->with('success', 'Request is send!');
}
Source : custom-validation-rules-in-laravel-5-5
Note : This is not a tested solution.

Answer 2

Use the Rule constructor like
class ValidUser implements Rule
{
private $grouppassword;
/**
* Create a new rule instance.
*
* #return void
*/
public function __construct($grouppassword)
{
$this->grouppassword = $grouppassword;
}
/**
* Determine if the validation rule passes.
*
* #param string $attribute
* #param mixed $value
* #return bool
*/
public function passes($attribute, $value)
{
// $this->grouppassword
// $groupid = $value
// Do your logic...
return true;
}
/**
* Get the validation error message.
*
* #return string
*/
public function message()
{
return 'The :attribute must something...';
}
}
Usage
Route::post('/user', function (Request $request) {
// Parameter validation
$validator = Validator::make($request->all(), [
'groupid' => 'required',
'grouppassword' => ['required', new ValidUser($request->groupid), ]
]);
if ($validator->fails())
return response()->json(['error' => $validator->errors()], 422);
});

Answer 3

I think you could use a closure there. So something like this:
$validator = \Validator::make($request->all(), function() use ($groupid, $grouppassword) {
$validPassword = Group::where([['idgroups', $value],['group_password', $grouppassword]])->first();
if($validPassword){
return true;
}else{
return false;
}
}
I haven't run it though.

Answer 4

If you are calling the validation from a Request class, you can access the extra value as e.g.
request()->validate([
'groupid' => [new ValidTest(request()->input('grouppassword'))]
]);