How is the proper way to override __call in a trait?

I'm developing a package that adds methods dynamically, so I should override the __call method in laravel eloquent model. I write it as a trait, and it's worked but if model using another trait that also overrides __call too, these throw an error with message: "Trait method __call has not been applied, because there are collisions with other trait methods on"

my trait code is something like these:

trait HasX
{
    public function __call($name, $arguments)
    {
        if($name== 'x') return 'x';
        return self::__call($name, $arguments);
    }

}

It's worked perfectly but if I use another trait that also overrides that these throw that error. For example :

trait HasY
{
    public function __call($name, $arguments)
    {
        if($name== 'y') return 'y';
        return self::__call($name, $arguments);
    }

}

what is the proper way to achieve this?

from Newest questions tagged laravel-5 - Stack Overflow http://bit.ly/2K2bge1
via IFTTT