lumen和mongodb的不同查询不起作用

Question

I want to get count of unique value my query is like below,

 $query = DB::connection('mongodb')->collection('email_message')
                ->distinct()->select("email_thread_id")
                ->where('email_account_id', (int)$request->email_account_id)
                ->where('status', "Active")->where('folder_id', "=", $folderId);
    $result = $query->count();

it's count value should be 9 and I am getting it as 12.

it is not giving me distinct value. can any one help me to resolve it out?

I have update my mongodb screen shot below, here I have deleted one record , so it will show total 11 records

Answer 1

You didn't mention the distinct('FIELD_NAME') field name.

$query = DB::connection('mongodb')->collection('email_message')
            ->distinct('email_thread_id')->select("email_thread_id")
            ->where('email_account_id', (int)$request->email_account_id)
            ->where('status', "Active")->where('folder_id', "=", $folderId);
$result = $query->count();

NB:: I have just mention the field name over distinct()