Perl MongoDb多个更新

Question

i want to update all records in my database(mongodb),I tried to use command below to do that but I could not reach the solution.

use MongoDB;
my $dbhost = MongoDB::Connection->new(host => '127.0.0.1', port => 27017);
    my $database   = $dbhost->test;
my $res = $database->questions;
$res->update({'person'=>'omer'},{'$set' => { 'canbeseen' =>"oha"}},{"multi" => "true"} );

i want to update all omer's "canbeseen"s. but it isn't working, so how can i do that? i'm waiting for your answers. thank you.

Answer 1

The MongoDB module seems to use the multiple keyword instead of multi :

$res->update(
  {'person'   => 'omer' },
  {'$set'     => { 'canbeseen' => "oha" } },
  {'multiple' => "true" }
);

From the documentation :

multiple All of the documents that match $criteria will be updated, not just the first document found. (Only available with database version 1.1.3 and newer.)