Laravel - Relationships - Updating Belongs To Relationships

If you would like to assign a child model to a new parent model, you may use the associate method. In this example, the User model defines a belongsTo relationship to the Account model. This associate method will set the foreign key on the child model:

    use App\Models\Account;
    $account = Account::find(10);

To remove a parent model from a child model, you may use the dissociate method. This method will set the relationship's foreign key to null: