Symfony-Ajax选择

Question

I am working on a Symfony project where I have a product entity and I need an Ajax search bar to search for through my products and select some of them. The problem is I have a search bar which gives me live results from the database but if I select the product it should show the data in my table. For some reason I am not able to show the selected results in my table.

js

 $('.js-data-example-ajax').select2({
       ajax: {
           url: '/product/api/search',
           dataType: 'json',
      }
 });

Controller

public function viewActionSearch(Request $request)
{

$query = $request->get('term');

$result = [
    'results' => [],
];

if ($query !== null){
    $products = $this->productRepository->getSearchList($query);

    $result['results'];

    foreach ($products as $product) {
        $result['results'][]     = [
            'id' => $product['id'],
            'text' => $product['name'],
        ];
    }

} else {

    $products = $this->productRepository->getResultList(1);
    foreach ($products as $entity) {
        $result['results'][] = [
            'id' => $entity['id'],
            'text' => $entity['name'],
        ];
    }
}

return new JsonResponse($result);

}

ProductList

public function getPage(Request $request)
    {
        $products = $this->productRepository->getAllProducts($currentPage);

        return $this->render(
            '@app_bar/Product/productList.twig',
            [
                'products' => $products,                   
            ]
        );
    }

Twig

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<!-- select2 -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.6-rc.0/css/select2.min.css" rel="stylesheet" />
<link href="https://cdn.jsdelivr.net/gh/ttskch/select2-bootstrap4-theme@master/dist/select2-bootstrap4.min.css" rel="stylesheet">


<div class="container mt-5">
    <form>
        <div class="form-group">
            <select class="js-data-example-ajax form-control"></select>
            </select>
        </div>
    </form>
</div>




<table class="table table-hover table-responsive">
    <thead>
    <tr>
        <th>id</th>
        <th>Title</th>
        <th>SKU</th>
        <th>Actions</th>
    </tr>
    </thead>
    <tbody>
    {% for product in products %}
        <tr>
            <td>
                {{ product.id }}
            </td>
            <td>
                {{ product.name }}
            </td>
            <td>
                {{ product.sku }}
            </td>
            <td>
                <a href="{{ path('app_product_getproduct', {'id': product.id}) }}" class="btn btn-success btn-sm" >
                    <span class="glyphicon glyphicon-pencil"></span>
                </a>
                <a href="{{ path('app_product_delete', {'id': product.id}) }}" class="btn btn-danger btn-sm" onclick="return confirm('Are you sure?')">
                    <span class="glyphicon glyphicon-trash"></span>
                </a>

            </td>
        </tr>
    {% endfor %}
    </tbody>
</table>

If I visit the route /product/api/search/ it's giving my a result back but i am not able to show these selected products in my table.

Answer 1

You missing something here. Symfony does not work like frontend frameworks like vue.js or similar. What you are doing you are rendering serverside request and after that, you just fetch data via AJAX and you do nothing with that data. jQuery needs instructions on what to do with data you get from the server. You can always use Symfony alongside some frontend framework, but you need to understand the difference when serverside renders your twig template and when frontend framework renders it.

http://api.jquery.com/jquery.ajax/

Hint: $('.js-data-example-ajax').select2({ ajax: { url: '/product/api/search', dataType: 'json', success: function (data) { $.each(response, function () { $('#mytable').append('<tr><td>' + this.product_name + '</td><td>' + this.product_price + '</td></tr>'); }); } } }); There are different methods of what you can render, you can reload whole table or just rows that you need.