send parameters from ajax to controller

Question

the error is: The identifier id is missing for a query of Cocktails\RecipesBundle\Entity\Ingredient

So, the problem is that controller doesn't get the parameter ingredientId, I've tried many examples and tutorials but nothing helped. maybe there's some easy obvious mistake which I am missing? How could I pass parameters from ajax function to controller?

Mihai Stancu · Accepted Answer · 2014-04-30 12:16:33Z

1

You're creating a new and empty Request object which obviously doesn't have the request information of the current request... it will be empty.

You can add a parameter to addIngredientToUser called $request and using type-hinting as Request $request. This way Symfony2 will give you the actual request object of the current request populated with the correct request information.

answered Apr 30, 2014 at 12:16

Mihai Stancu

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6 Comments

AuBa Over a year ago

and what should i send in ajax as a parameter to controllers parameter $request?

Mihai Stancu Over a year ago

You don't need to send anything, Request $request, Post $post and a few other parameters of action functions don't have to be explicitly passed, they are automatically filled in by Symfony2.

Mihai Stancu Over a year ago

Try to debug -- check if the post data reaches your controller by using var_dump($_GET, $_POST, $_REQUEST);

AuBa Over a year ago

all three arrays are empty. why doesn't it reach controller? maybe it's because it's going through routing and parameters dont get passed?

AuBa Over a year ago

when changing POST to GET it shows that parameters are passed (var dump array(1) { ["{"ingredient":"2"}"]=> string(0) "" } but i'm still not able to reach it

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atn · Accepted Answer · 2014-04-30 13:48:52Z

0

Working code are

public function addIngredientToUserAction(Request $request) {
    $usr = $this->getUser();
    $id = $request->get('ingredient');
    $ingredientEntity = $this->getDoctrine()->getRepository('CocktailsRecipesBundle:Ingredient')->find($id);
    $usr->addIngredient($ingredientEntity);

    return $this->render('CocktailsRecipesBundle:Default:menu.html.twig');
}

In your comment for previous answer you have made a mistake

$id = $request->get('id');
                     ^^ - should be 'ingredient'

answered Apr 30, 2014 at 13:48

atn

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2 Comments

AuBa Over a year ago

sorry about that, one comment(now deleted) suggested changing var names and so i did. this is not the case, it still doesnt work even with ingredient

atn Over a year ago

Could you please do alert(ingredient) in JS before ajax() call?

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