Displaying a hierarchical tree with Baum in Laravel / Recursive functions in laravel - recursion

Question

So I've just installed the Baum package in Laravel and put together a small tree of categories.
I've been able to display the tree in nested JSON format with the getDependentsAndSelf() method, but I have no idea how to go about actually displaying this in a usuable format with laravel.
Ideally I'd just like to spew them out in an indented list format, but I feel like that would probably require some recursion and I have no idea how to do that in Laravel.
Here's the output I have right now:
{"14":{"id":14,"parent_id":null,"name":"Root","lft":1,"rgt":6,"depth":0,"children":[{"id":15,"parent_id":14,"name":"Child 1","lft":2,"rgt":5,"depth":1,"children":[{"id":16,"parent_id":15,"name":"Child 2","lft":3,"rgt":4,"depth":2,"children":[]}]}]}}
Essentially it's just a tree of the format
- Root
- Child 1
- Child 2
So what's the best way to go about this in laravel? In php I could have just made a function that recursed upon itself, but I'm not sure how to do that in my laravel view.

Answer 1

You can use method described here: https://gist.github.com/etrepat/6920301
<?php
$roots = Category::roots()->get();
echo "<ul>";
foreach($roots as $root) renderNode($root);
echo "</ul>";
// *Very simple* recursive rendering function
function renderNode($node) {
echo "<li>";
echo "<b>{$node->name}</b>";
if ( $node->children()->count() > 0 ) {
echo "<ul>";
foreach($node->children as $child) renderNode($child);
echo "</ul>";
}
echo "</li>";
}