HasManyThrough Relationships With Unlimited Levels

 he eloquent-has-many-deep package by Jonas Staudenmeir allows Eloquent HasManyThrough relationships with unlimited levels. It supports many-to-many and polymorphic relationships and all their possible combinations.

The package's readme illustrates various types of relationships that this package supports:

• HasMany
• ManyToMany
• MorphMany
• MorphToMany
• MorphedByMany
• BelongsTo

Here's an example from the readme of a HasMany relationship for a complex relationship:

/*

 Country

   -> has many

 User

   -> has many

 Post

   -> has many

 Comment

*/

class Country extends Model

{

    use \Staudenmeir\EloquentHasManyDeep\HasRelationships;

    public function comments()

    {

        return $this->hasManyDeep('App\Comment', ['App\User', 'App\Post']);

    }

}

// Access country comments

$country->comments();

In the above example, the package uses Eloquent conventions keys, and the package allows you to specify custom keys for local and foreign keys.