Relaciones del modelo de Laravel con dos columnas coinciden
Compoships adds support for multi-columns relationships in Laravel 5's Eloquent.
https://github.com/topclaudy/compoships
It allows you to specify relationships using the following syntax:
public function b()
{
return $this->hasMany('B', ['key1', 'key2'], ['key1', 'key2']);
}
where both columns have to match.
Kriss Sachintha