Get patents data data only child has empty data in relationship?

Question

I have a collection like the below. I need to fetch those users, whom does not uploaded documents. Now from the relationship, How can I fetch this?

[0] => Array
        (
            [id] => 2
            [user_id] => 8
            [referred_by] => 
            ........          

            [user_documents] => 
        )

    [1] => Array
        (
            [id] => 3
            [user_id] => 9
            [referred_by] => 
            [reference_id] => NM1100008
            .......                    

            [user_documents] => Array
                (
                    [id] => 1
                    [customer_id] => 3
                    [doc_type] => 1
                    [document] => N8xFORsPpkTayTQ9Ihyz0ly7QM62TJHxvHhSFQSN.png
                    [admin_comment] => 
                    [approve_status] => approve
                    [other_gov_id] => 
                    [doc_no] => 1
                    [created_at] => 2020-04-04 12:39:12
                    [updated_at] => 2020-04-06 13:57:01
                    [deleted_at] => 
                )

        )

I want to get rows only when user_documents is empty.. To get those users who does not uploaded documents to the system.

[user_documents] => 

Thanks in advance.

Answer 1

You can use laravel querying-relationship-absence

$users= User::doesntHave('user_documents')->get();