paxha / laravel-recursive-relationships
This Laravel Eloquent extension provides recursive relationships using common table.
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Type:laravel
Requires
- php: ^7.2|^8.0
Requires (Dev)
- orchestra/testbench: ^4.4
- phpunit/phpunit: ^8.0
This package is auto-updated.
Last update: 2024-11-18 01:30:37 UTC
README
Introduction
This Laravel Eloquent extension provides recursive relationships using common table.
Installation
composer require paxha/laravel-recursive-relationships
Usage
Getting Started
Consider the following table schema for hierarchical data:
Schema::create('users', function (Blueprint $table) { $table->increments('id'); $table->unsignedInteger('parent_id')->nullable(); });
Use the HasRecursiveRelationships
trait in your model to work with recursive relationships:
class User extends Model { use \RecursiveRelationships\Traits\HasRecursiveRelationships; }
By default, the trait expects a parent key named parent_id
. You can customize it by overriding getParentKeyName()
:
class User extends Model { use \RecursiveRelationships\Traits\HasRecursiveRelationships; public function getParentKeyName() { return 'user_id'; // or anything } }
Relationships
The trait provides various relationships:
children()
: The model's direct children.nestedChildren()
: The model's nested children.parent()
: The model's direct parent.nestedParents()
: The model's nested parents by object.
$users = User::with('children')->get(); $users = User::with('nestedChildren')->get(); $users = User::with('parent')->get(); $users = User::with('nestedParents')->get();
Scopes
The trait provides query scopes to filter models by their position in the tree:
hasChildren()
: Models with children.hasParent()
: Models with a parent.leaf()
: Models without children.root()
: Models without a parent.
$noLeaves = User::hasChildren()->get(); $noRoots = User::hasParent()->get(); $leaves = User::leaf()->get(); $roots = User::root()->get();
Functions
The trait provides helper functions:
descendents()
: The model's all Children in single array.ancestors()
: The model's all parents in single array.siblings()
: The parent's other children.
$descendents = User::find($id)->descendents(); $ancestors = User::find($id)->ancestors(); $siblings = User::find($id)->siblings();
License
This is open-sourced laravel library licensed under the MIT license.