This inverse version of HasManyThrough allows BelongsToThrough relationships with unlimited intermediate models.
Supports Laravel 5.0+ and PHP 5.6+.
composer require staudenmeir/belongs-to-through
Consider this HasManyThrough relationship:
Country → has many → User → has many → Post
class Country extends Model
{
public function posts()
{
return $this->hasManyThrough('App\Post', 'App\User');
}
}Use the BelongsToThrough trait in your model to define the inverse relationship:
Post → belongs to → User → belongs to → Country
class Post extends Model
{
use \Znck\Eloquent\Traits\BelongsToThrough;
public function country()
{
return $this->belongsToThrough('App\Country', 'App\User');
}
}You can also define deeper relationships:
Comment → belongs to → Post → belongs to → User → belongs to → Country
Supply an array of intermediate models as the second argument, from the related (Country) to the parent model (Comment):
class Comment extends Model
{
use \Znck\Eloquent\Traits\BelongsToThrough;
public function country()
{
return $this->belongsToThrough('App\Country', ['App\User', 'App\Post']);
}
}You can specify custom foreign keys as the fifth argument:
class Comment extends Model
{
use \Znck\Eloquent\Traits\BelongsToThrough;
public function country()
{
return $this->belongsToThrough(
'App\Country',
['App\User', 'App\Post'],
null,
'',
['App\User' => 'custom_user_id']
);
}
}Please see CONTRIBUTING and CODE OF CONDUCT for details.