Passing route url format to symfony2 form with get method

Question

Not sure if I properly wrote the subject but anyway.

Since you can create specific routes with different parameters for eg:

_search:
    pattern: /page/{         


        

Answer 1

It's the default behavior of HTML forms with GET method. You will need to build that URL yourself.

Backend way

• Drawback: It makes two requests to the server instead of one
• Advantage: It's more maintainable because the URL is built using the routing service

Your routing file

_search:
    pattern: /page/{category}/{keyword}
    defaults: { _controller: Bundle:Default:page, category: 9, keyword: null }

_search_endpoint:
    pattern: /page
    defaults: { _controller: Bundle:Default:redirect }

Your controller

public function redirectAction()
{
    $category = $this->get('request')->query->get('category');
    $keyword = $this->get('request')->query->get('keyword');

    // You probably want to add some extra check here and there
    // do avoid any kind of side effects or bugs.

    $url = $this->generateUrl('_search', array(
        'category' => $category,
        'keyword'  => $keyword,
    ));

    return $this->redirect($url);
}

Frontend way

Using Javascript, you can build the URL yourself and redirect the user afterwards.

• Drawback: You don't have access to the routing service (although you could use the FOSJsRoutingBundle bundle)
• Advantage: You save one request

Note: You will need to get your own query string getter you can find a Stackoverflow thread here, below I'll use getQueryString on the jQuery object.

(function (window, $) {
    $('#theFormId').submit(function (event) {
        var category, keyword;

        event.preventDefault();

        // You will want to put some tests here to make
        // sure the code behaves the way you are expecting

        category = $.getQueryString('category');
        keyword = $.getQueryString('keyword');

        window.location.href = '/page/' + category + '/' + keyword;
    }):
})(window, jQuery);