<?php

namespace Modules\ManagementTools\Entities;

use App\User;
use Illuminate\Database\Eloquent\Model;

class MtSkill extends Model
{
    protected $table = 'mt_skills';

    protected $guarded = ['id'];

    public function parent()
    {
        return $this->belongsTo(self::class, 'parent_id');
    }

    public function children()
    {
        return $this->hasMany(self::class, 'parent_id');
    }

    public function users()
    {
        return $this->belongsToMany(User::class, 'mt_user_skill', 'skill_id', 'user_id')
            ->withPivot('skill_level')
            ->withTimestamps();
    }

    public function scopeForBusiness($query, $business_id)
    {
        return $query->where('business_id', $business_id);
    }
}