How Do I Achieve A Path Alias In Yii

Yii 1.1 General Discussion
1

As per this link i have almost managed to achieve the structure. But the path alias is confusing me. Could somebody explain me how can i achieve this.

http://www.yiiframework.com/wiki/155/the-directory-structure-of-the-yii-project-site/#hh5

I want my controller in frontend to access these models from common folder.

Thanks

2

If you want simple to access just import them, in config/main add:


    'import'=>array(

        'common.models.*',

    ),

If you want to set ‘common’ as an alias, use:


    'aliases'=>array(

        'common'=>dirname(__FILE__).path_to_common.'common',

    ),
3

Is there any performance hit in the import statement. And how do i handle model inheritance i.e fronted model inheriting from common model