尝试将ajax自动完成集成到我在laravel中的创建记录中

我发现一个ajax自动完成，我不想把它集成到我的表单中，但我不能让它工作。请告知，谢谢

[控制器]

<?php
namespace App\Http\Controllers;
use App\Purchasetransactions;
use App\AjaxAutocompleteController;
use App\Products;
use App\Categories;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Session;

class PurchasetransactionsController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $purchasetransactions = Purchasetransactions::all();
        return view('orders.index', compact('purchasetransactions'));
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return view('orders.create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $purchasetransactions = Purchasetransactions::create($request->only('products_code','name'));
        return redirect(route('orders.index'));
    }

    /** Auto Complete */
    public function productSearch(Request $request){
        $query = $request->get('term','');
        $products=\DB::table('products');
        if($request->type=='product_code'){
            $products->where('product_code','LIKE','%'.$query.'%');
        }
        if($request->type=='product_name'){
            $products->where('name','LIKE','%'.$query.'%');
        }
        $products=$products->get();        
        $data=array();
        foreach ($products as $product) {
            $data[]=array('product_code'=>$product->product_code,'name'=>$product->name);
        }
        if(count($data))
            return $data;
        else
            return ['product_code'=>'','name'=>''];
    }

}

---

我在laravel中的输入字段中添加了多个自动完成搜索，每次实现它时，我都必须对其进行备份。这对我有用。这是我正在搜索的匹配缩写的输入

 <div class="input-group">
     @if(isset($_GET['variable_name']))
         <input value="{{$_GET['variable_name']}}" type="search" name="variable_name" class="form-control" id="variable_name" autocomplete="off">
    @else
        <input type="search" name="variable_name" class="form-control" id="variable_name" placeholder="Search" autocomplete="off">
   @endif
</div>

我的路线：

Route::get('/find', 'PagesController@find')->name('typeahead.search');

图书馆：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>



还需要bloodhound.js和tyepahead.jquery

public function find(Request $request) {

    $result=Abbreviation::where('abbreviation', 'LIKE', "%{$request->input('variable_name')}%")
        ->orWhere('name', 'LIKE', "%{$request->input('variable_name')}%")->get();
    return response()->json($result);

}

Route::get('/find', 'PagesController@find')->name('typeahead.search');

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>