Why doesn't model event handler get called upon it's deletion?

Question

According to the accepted answer in Using Model Events Listener in Laravel 5, the following code should work normally:

class Question extends Model
{
    public function answers()
    {
        return $this->hasMany(Answer::class);
    }

    // this is a recommended way to declare event handlers
    protected static function boot() {
        parent::boot();

        // before delete() method call this
        static::deleting(function($question) {
            $question->answers()->delete();
        });
    }
}

However, after performing the following actions in php artisan tinker:

$q = App\Question::create()
$q->answers()->create()
$q->delete()

The answer still persists in the database. It seems, that the event handler on Question model does not get triggered. How do I fix this?

try to use it in the `static::deleted` instead – Hugo S. Mendes Apr 15 '16 at 19:27 — Hugo S. Mendes, Apr 15 '16 at 19:27
@HugoS.Mendes thanks for the reply. Tried that to no avail – Alex Lomia Apr 15 '16 at 19:33 — Alex Lomia, Apr 15 '16 at 19:33

score 2 · Accepted Answer · edited May 23 '17 at 12:00

2

First of all, I would answer with a comment if I could.

Hi, as far as I know the deleting event is only getting fired if you delete each model explicitly.

From answer in Soft Delete Cascading with Laravel 5.2

edited May 23 '17 at 12:00

Community

1
1

answered Apr 17 '16 at 20:08

maltalk

156
1
7

Thanks for the answer. What does explicit deletion mean? – Alex Lomia Apr 17 '16 at 20:27
1

You must go element by element. Example: `static::deleting(function($question) { foreach ($question->answers()->get() as $answer) { $answer->delete(); } });` – maltalk Apr 17 '16 at 20:36

score 1 · Answer 2 · answered Apr 18 '16 at 09:22

You should add to AppServiceProvider in boot action you code, like this

\App\Questions::deleting(function($answers) {
           $answers = Answers::where('question_id', '=', $answer->id)
                   ->get();
           foreach ($answers as $answer) {
               // and here delete questions
           }

       });

Why doesn't model event handler get called upon it's deletion?

2 Answers2