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Auto Incrementing Sequence in mongodb using php mongo
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| <?php | |
| $m = new MongoClient(); | |
| // select a database | |
| $db = $m->seq; | |
| // select a collection (analogous to a relational database's table) | |
| $collection = $db->counters; | |
| $user_collection = $db->user; | |
| /******************Function to auto increment seq******************/ | |
| function getNextSequence($name){ | |
| global $collection; | |
| $retval = $collection->findAndModify( | |
| array('_id' => $name), | |
| array('$inc' => array("seq" => 1)), | |
| null, | |
| array( | |
| "new" => true, | |
| ) | |
| ); | |
| return $retval['seq']; | |
| } | |
| /********************Example Usage**********************************/ | |
| $db_array=array('_id' => getNextSequence("userid"), 'name' => 'debojit'); | |
| $user_collection->insert($db_array); |
try to add
"upsert" => true,
at line 22 - it will create needed rows in autoincrement collection if they are missing
how to make it work if we are using mongodb driver
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I am using this code but not working, What I do?