TreeStructure.php

<?php namespace Fishcat\Shop\Models\Traits;

use Input;

trait TreeStructure {

	public static $repository = false;

	/**
	 * Get nested array of queried entry type
	 * @param  array $params [description]
	 */
	public static function tree($params = array('parent' => 0, 'uri' => '', 'uriDivider' => '/', 'getChildren' => true))
	{
		$parent = array_get($params, 'parent', 0);
		$uri = array_get($params, 'uri', '');
		$uriDivider = array_get($params, 'uriDivider', '/');
		$getChildren = array_get($params, 'getChildren', true);

		if ( !self::$repository ) {
			self::$repository = self::getRepository();
		}

		$branch = [];

		foreach (self::$repository as $element) {
	        if ($element->parent == $parent) {
	            
		        if($getChildren === true){

		        	$params['parent'] = $element->id;
		        	$params['uri'] = $uri . $uriDivider . $element->{self::$uriPartial};

		            $children = self::tree($params);
		            if ($children) {
		                $element->children = $children;
		            }
		        }

	            $element = $element->toArray();
	            // Add internal uri within the tree
	            $element['uri'] = $uri . $uriDivider . $element[self::$uriPartial];
	            $branch[] = $element;
	        }
	    }

	    return $branch;
	}

	public static function getModel()
	{
		return get_called_class();
	}


	/**
	 * Repository of queried entry type,
	 * returns only requested information.
	 * @todo  Return only requested information
	 * @return [type] [description]
	 */
	public static function getRepository()
	{
		$model = self::getModel();

		$query = $model::select(['id', 'parent'])->get();

		return $query;
	}

	/**
	 * Full repository of queried entry type
	 * @return [type] [description]
	 */
	public static function getRepositoryEager()
	{
		$model = self::getModel();
		$repository = call_user_func( [self::getModel(), 'all'] );
		return $repository;
	}
}