MongoDB和PHP-如何从日期范围定界查询中排除结果？

Question

Long time peruser, first time question asker ...

Using PHP to query our MongoDB page visit log, I would like to get a set of records between two time periods, but exclude results that have a certain userAgent. I've figured out the time range but cannot find anywhere that explains the exclude.

Here's what I have for the query so far:

$dateRange = $collection->find(array("timeStamp" => array('$gt' => $start, 
                                                          '$lt' => $end)));

Looking for code to complete the find function to exclude the records with a "userAgent" starting with "ELB"

Answer 1

What you're looking for is $ne or $nin, depending on whether the value you want to exclude is a single value or array of values. eg:

$dateRange = $collection->find(array("timeStamp" => array('$gt' => $start, '$lt' => end), 'userAgent' => array('$ne' => new MongoRegex('/^ELB/'))));

Documentation here:

http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24ne http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-%24nin

Answer 2

You could append {$not: /^ELB/} to the mongo query.

Not really sure about the equivalent PHP but try something like this:

$dateRange = $collection->find(array(
    'timeStamp' => array(
        '$gt' => $start,
        '$lt' => $end
    ),
    'userAgent' => array(
        '$not' => new MongoRegex('/^ELB/')
    )
));