surveyor_indonesia_backend/app/Http/Controllers/DivisiController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Divisi;

class DivisiController extends Controller
{

	private function getAllChildren($divisi, $depth = 0, $array = []) {
		$divisi->depth = $depth;
		array_push($array, $divisi);
		foreach($divisi->children as $child){
			$array = $this->getAllChildren($child, $depth + 1, $array);
		}
		return $array;
	}

	public function add(Request $request){
		$this->validate($request, [
			'name'          => 'required',
			'description'   => 'string',
			'parent'   => 'integer'
		]);

		$data = $request->all();
		$data['created_by'] = $this->currentName;

		$result = Divisi::create($data);

		if(!$result)
			return response()->json(['status'=>'failed','message'=>'Failed to add data','code'=> 500]);

		return response()->json(['status'=>'success','message'=>'Data created!','code'=>200]);
	}

	public function update(Request $request, $id){
		if(empty($id) || !is_int((int)$id))
			return response()->json(['status'=>'failed','message'=>'id is required!','code'=>400], 400);

		$data = Divisi::find($id);

		if(!$data)
			return response()->json(['status'=>'failed','message'=> 'Data not found!','code'=> 404], 404);

		$result = $data->update($request->all());

		if(!$result)
			return response()->json(['status'=>'failed','message'=> 'Update failed!','code'=> 500], 500);

		return response()->json(['status'=>'success','message'=>'Data added!','code'=>200], 200);
	}

	public function delete($id)
	{
		if(empty($id) || !is_int((int)$id))
			return response()->json(['status'=>'failed','message'=>'id is required!','code'=>400], 400);

		$data = Divisi::find($id);

		if(!$data)
			return response()->json(['status'=>'failed','message'=> 'Data not found!','code'=> 404], 404);

		$delete = $data->delete();

		if(!$delete)
			return response()->json(['status'=>'failed','message'=> 'Delete failed!','code'=> 500], 500);

		return response()->json(['status'=>'success','message'=> 'Data deleted!','code'=> 200], 200);
	}

	public function search()
	{
		return $this->list();
		// cant use builder for this case
	}

	public function list()
	{
		$parentMenus = Divisi::whereNull('parent')->with('children')->get();
		$divisions = [];
		foreach($parentMenus as $menu){
			$childs = $this->getAllChildren($menu);
			foreach($childs as $d){
				$d->displayName = ' ' . $d->name;
				for($i=0; $i < $d->depth; $i++){
					$d->displayName = '--' . $d->displayName ;
				}
				array_push($divisions, $d);
			}
		}
		$countData = count($divisions);
		if($countData == 0)
			return response()->json(['status'=>'failed','message'=>'Data not found!','code'=> 404], 404);

		return response()->json(['status'=>'success','code'=>200,'data'=> $divisions, 'totalRecord'=> $countData], 200);
	}
}