Laravel patch method not supported (even on update method)

HTML PATCHING FORM {{ Form::model($model , [ ‘route’ => [‘admin.friendship.update’, $model->id] , ‘class’=>’needs-validation ajax-form’, ‘method’ => ‘post’ ]) }} @…

Numeration of documents on PHP

PHP, Laravel 6.0: I can’t write a working static function or a variable for getting numeration of my documents with increment. Every time I create a document it should set its number (Document #1, #2, …