app/Models/Technique.php

   1 <?php
   2
   3 namespace App\Models;
   4
   5 use Illuminate\Database\Eloquent\Factories\HasFactory;
   6 use Illuminate\Database\Eloquent\Model;
   7
   8 class Technique extends Model
   9 {
  10         use HasFactory;
  11
  12         public function chapters() {
  13                 return $this
  14                         ->belongsToMany(Technique::class, 'technique_chapter', 'parent_id', 'child_id')
  15                         ->withPivot('level', 'order')
  16                         ->orderByPivot('order')
  17                         ->using(TechniqueChapter::class);
  18         }
  19
  20         protected $casts = [
  21                 'index' => 'boolean',
  22         ];
  23 }