php - Setting aliases in Yii2 within the app config file

Question

I'm trying to set an alias in Yii2 but I'm getting a Invalid Parameter / Invalid path alias for the below code that is placed in the app config file:

'aliases' => [
    // Set the editor language dir
    '@editor_lang_dir' => '@webroot/scripts/sceditor/languages/',       
],

If I remove the @ it works.

I noticed you can do this:

Yii::setAlias('@foobar', '@foo/bar');

...but I would prefer to set it within the app config file. Is this not possible? If so, how?

Answer 1

Yii2 basic application

To set inside config file, write this inside $config array

'aliases' => [
        '@name1' => 'path/to/path1',
        '@name2' => 'path/to/path2',
    ],

Ref: http://www.yiiframework.com/doc-2.0/guide-structure-applications.html

But as mentioned here,

The @yii alias is defined when you include the Yii.php file in your entry script. The rest of the aliases are defined in the application constructor when applying the application configuration.

If you need to use predefined alias, write one component and link it in config bootstrap array

namespace appcomponents;


use Yii;
use yiiaseComponent;


class Aliases extends Component
{
    public function init() 
    {
       Yii::setAlias('@editor_lang_dir', Yii::getAlias('@webroot').'/scripts/sceditor/languages/');
    }
}

and inside config file, add 'appcomponentsAliases' to bootstrap array

    'bootstrap' => [
        'log',        
        'appcomponentsAliases',        
],