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<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
class ExpenseCategory extends Model
{
use SoftDeletes;
/**
* The attributes that should be mutated to dates.
*
* @var array
*/
/**
* The attributes that aren't mass assignable.
*
* @var array
*/
protected $guarded = ['id'];
public function sub_categories()
{
return $this->hasMany(\App\ExpenseCategory::class, 'parent_id');
}
/**
* Scope a query to only include main categories.
*
* @param \Illuminate\Database\Eloquent\Builder $query
* @return \Illuminate\Database\Eloquent\Builder
*/
public function scopeOnlyParent($query)
{
return $query->whereNull('parent_id');
}
}