Eloquent delete all rows with where statement - laravel

Question

I want to delete all the votes where the flag "isOnly" is true which means the article is voted before the plenary session.
I have this code written, which deletes ALL the votes.
foreach($commision->articles as $article) {
$article->votes()->delete();
$article->update([
'isVoted' => false
]);
}
What is the right way to delete all the votes with the flag 'isOnly' == true

Answer 1

You can stack where methods with delete call
$article->votes()->where('isOnly', true)->delete();
One better solution would be to avoid the foreach all together so you run only one query
$articleIds = $commision->pluck('articles.id'); //if the articles are already loaded calling a collection method pluck()
$articleIds = $commision->articles()->pluck('id'); // if articles are not loaded calling a query builder method pluck()
Votes::whereHas('article', function($articleQueryBuilder) use($articleIds) {
$articleQueryBuilder->whereIn('id', $articleIds);
})->where('isOnly', true)->delete();
Article::whereIn('id', $articleIds)->update([
'isVoted' => false
]);
This will result in a faster processing of your delete() & update().

Answer 2

Here is one way to delete by condition
$article->votes()->get()->filter(function($item){
return $item->isOnly == true;
})->each(function($vote){$vote->delete();});
This statement will get all votes and apply filter funtion on votes which will give us votes which has isOnly == true rows. Then each function will delete returned votes.
This will help. :)