A Laravel Package that extends Collection to handle unlimited nested items following adjacency list model.

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1.1.20 2020-09-30 08:16 UTC


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A Laravel/Lumen Package that extends collections to handle nested items following adjacency list model.


Run composer require typicms/nestablecollection


The model must have a parent_id attributes :

protected $fillable = [
    // …

and must use the following trait:

use TypiCMS\NestableTrait;

Now each time you get a collection of that model, it will be an instance of TypiCMS\NestableCollection in place of Illuminate\Database\Eloquent\Collection.

If you want a tree of models, simply call the nest method on a collection ordered by parent_id asc :


Of course you will probably want a position column as well. So you will have to order first by parent_id asc and then by position asc.

Change the name of subcollections

BBy default, the name of the subcollections is items, but you can change it by calling the childrenName($name) method : For example if you want your subcollections being named children:


Indented and flattened list

listsFlattened() method generate the tree as a flattened list with id as keys and title as values, perfect for select/option, for example :

    '22' => 'Item 1 Title',
    '10' => '    Child 1 Title',
    '17' => '    Child 2 Title',
    '14' => 'Item 2 Title',

To use it, first call the nest() method, followed by the listsFlattened() method:


By default it will look for a title column. You can send a custom column name as first parameter:


Four spaces are used to indent by default, to use your own use the setIndent() method, followed by the listsFlattened() method:

Model::orderBy('parent_id')->get()->nest()->setIndent('> ')->listsFlattened();


    '22' => 'Item 1 Title',
    '10' => '> Child 1 Title',
    '17' => '> Child 2 Title',
    '14' => 'Item 2 Title',

Nesting a subtree

This package remove items that have missing ancestor, this doesn’t allow you to nest a branch of a tree. To avoid this, you can use the noCleaning() method: