Friday, February 26, 2016

Return a JSON array from a Controller in Symfony

Often we need to return a JSON response from a controller in Symfony 2 and grab it in jQuery ajax response. Here is the way to do it.
The findAll() method return a collection of objects.
$categorias = $this->getDoctrine()
                   ->getRepository('AppBundle:Categoria')
                   ->findAll();
To build your response, you have to add all getters of your entities to your response like :
$arrayCollection = array();

foreach($categorias as $item) {
     $arrayCollection[] = array(
         'id' => $item->getId(),
         // ... Same for each property you want
     );
}

return new JsonResponse($arrayCollection);
Use QueryBuilder allows you to return results as arrays containing all properties :
$em = $this->getDoctrine()->getManager();
$query = $em->createQuery(
    'SELECT c
    FROM AppBundle:Categoria c'
);
$categorias = $query->getArrayResult();

return new JsonResponse($categorias);
The getArrayResult() avoids need of getters. After you have got the response, you can use each loop of jquery as follows.

success: function(response) {
        $.each(response, function(i) {
              $.each(this, function(key,val) {
                   console.log(key+ '=>' + val);
                });
           });
}

Source: http://stackoverflow.com/a/34577422

Friday, February 12, 2016

Useful Color Library Cheatsheet With Hex code With Preview For Web developer

This color library can be very useful for the web developer. It has hex code with preview as well. You can bookmark this post and save a lots of time during color selection process on your next web project.