We have moved our forum to GitHub Discussions. For questions about Phalcon v3/v4/v5 you can visit here and for Phalcon v6 here.
  1. Home
  2. General

Check if asset collection exists

Whats the correct way to check if an asset collection exists before attempting to output?

If, I have a "footer" collection and attempt to output in my main layout without adding assets it throws an exception. If I use $this->assets->get('footer'), it will throw an exception if not created. This is what i do for now, but seems wrong:

$this->assets->collection('footer');
echo $this->assets->outputJs('footer');


40.8k
Accepted
answer

this way:

if($this->assets->collection('footer')->count())
{
    echo $this->assets->outputJs('footer');
}


16.2k

Thanks! I didnt see the count method. That makes more sense semantically, even though calling collection('footer') implicitly creates a collection I think.



102

Just an interesting question: I added 3 JS files to the collection

// IndexController  indexAction
$this->assets->collection('footer')->addJs("file1.js")->addJs("file2.js")->addJs("file3.js");

but when i did

// views/index.volt
{{ assets.collection("footer").count() }}

or

// views/index.phtml
echo $this->assets->collection("footer")->count();

the result is always 2 ?!

Am I missing something or it is a bug?



12.2k

@Uros

It is not a bug. You probably don't have one of the files added with addJs on the filesystem.



102
edited May '16

@mraspor

Thanks for the help. I also thought that, but it is not the situation.

Actually, i realized that i was watching the wrong assets collection. In the problematic collection i have 2 addJs calls and 1 addInlineJs call. In my opinion count() should return 3 while it really returns 2?!

I'd appreciate help here. Thanks



12.2k

@Uros,

If you look at https://github.com/phalcon/cphalcon/blob/master/phalcon/assets/collection.zep

You will see that the count() method returns $this->_resources:

return count(this->_resources);

which is populated only by addCss and addJs methods.

addInlineJs and addInlineCss use this->_codes which is not returned by a count method.

So, yes, correct answer is 2 (as inline isn't counted by the count method).