form input cleared after submit data using laravel fram work

good day, I have multiple data base connection when I validate name of product I send message "product name is exist before " to view and here problem is appeared message appearedin view but all form inputs is cleared. how I recover this problem taking in consideration if product name not exist validation done correctly and if found error in validation it appeared normally and form input not cleared. this my controller code

public function add(Request $request)

{
        // start add
    if($request->isMethod('post'))
    {
        if(isset($_POST['add']))
        {
            // start validatio array
        $validationarray=$this->validate($request,[
            //'name'  =>'required|max:25|min:1|unique:mysql2.products,name|alpha',
            'name'  =>'required|alpha',
            'price' =>'required|numeric',

            ]);
                // check name is exist

            if(true !=dBHelper::isExist('mysql2','products','`status`=? AND `deleted` =? AND `name`=?',array(1,1,$validationarray['name'])))
            {

                $product=new productModel();
                // start add
                $product->name=$request->input('name');
                $product->save();
                $add=$product->id;
                $poducten=new productEnModel();
                $poducten->id_product=$add;
                $poducten->name=$request->input('name');
                $poducten->price=$request->input('price');
                $poducten->save();
                $dataview['message']='data addes';




            }else{
                $dataview['message']='name is exist before';
            }

        }
    }
    $dataview['pagetitle']="add product geka";
    return view('productss.add',$dataview);
}

this is my view

@extends('layout.header')
@section('content')
    @if(isset($message))
        
    @endif

    @if(count($errors)>0)
        <div class="alert alert-danger">
            <ul>
              @foreach($errors->all() as $error)
                  <li></li>

                  @endforeach

            </ul>

        </div>
        @endif

    <form role="form"  action="add" method="post" enctype="multipart/form-data">
        
        <div class="box-body">
            <div class="form-group">
                <label for="exampleInputEmail1">Employee Name</label>
                <input type="text" name="name" value="" class="form-control" id="" placeholder="Enter Employee Name">
            </div>

            <div class="form-group">
                <label for="exampleInputEmail1">Email Address</label>
                <input type="text" name="price" value="" class="form-control" id="" placeholder="Enter Employee Email Address">
            </div>
        </div>
        <!-- /.box-body -->
        <div class="box-footer">
            <button type="submit" name="add" class="btn btn-primary">Add</button>
        </div>
    </form>

@endsection

this is my route

Route::get('/products/add',"produtController@add");
    Route::post('/products/add',"produtController@add");

via Chebli Mohamed