Symfony asset component "" is not a valid URL

Question

I am using webpack dev server to serve my assets in local development. I have following in my paramters.yml.dist

# local assets devserver address
# if you want to use webpack dev server use "http://localhost:8090"
# and then > npm run devserver
assets_base_url: ~

I have following in framework for local environment.

framework:
    assets:
        base_urls: ["%assets_base_url%"]

My problem is that it is not working with base settings of "~" for my colleagues that are not using devserver.

Error: "" is not a valid URL

What should I do enable or disable devserver assets url by one setting in parameters.yml

Symfony docs for asset component

Federkun · Accepted Answer · 2016-04-07 22:07:45Z

1

Instead of put base_urls: ["%assets_base_url%"], you can do that in the Extension Class of your bundle.

namespace Acme\HelloBundle\DependencyInjection;

use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;

class AcmeHelloExtension extends Extension implements PrependExtensionInterface
{
    // ...

    public function prepend(ContainerBuilder $container)
    {
        $assetBaseUrl = $container->getParameter('assets_base_url');
        if (!$assetBaseUrl) {
            $container->prependExtensionConfig(
                'framework',
                array(
                    'assets' => array(
                        'base_urls' => array($assetBaseUrl)
                    )
                )
            );
        }
    }
}

Inside the PrependExtensionInterface::prepend() method you can prepends settings over config.yml configuration.

edited Apr 7, 2016 at 22:07

answered Apr 7, 2016 at 22:00

Federkun

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7 Comments

Marcel Mandatory Over a year ago

How it will work if I want to use this setting globally and I have 20+ company bundles in project.

Federkun Over a year ago

You need a 21° bundle where to do this (call it "CoreBundle", or whatever), and the others bundle must be now have a dependency to this new bundle.

Marcel Mandatory Over a year ago

I will show this solution or I will force all colleagues to set it manually to correct Url. Rather then creating dependencies like this.

Federkun Over a year ago

wait, wait, wait... I maybe was looking for the most complicated solution

Federkun Over a year ago

try to change assets_base_url: ~ to assets_base_url: []

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